{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T10:18:38Z","timestamp":1791195518118,"version":"4.1.0"},"reference-count":77,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2020,2,21]],"date-time":"2020-02-21T00:00:00Z","timestamp":1582243200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"\u0420\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0439 \u0424\u043e\u043d\u0434 \u0424\u0443\u043d\u0434\u0430\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0439 (\u0420\u0424\u0424\u0418)","award":["19-32-60018"],"award-info":[{"award-number":["19-32-60018"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>The paper is devoted to the structure and properties of the composite material based on multi-walled carbon nanotubes (MWCNTs) covered with pyrolytic iron and chromium. Fe\/MWCNTs and Cr\/MWCNTs nanocomposites have been prepared by the metal organic chemical vapor deposition (MOCVD) growth technique using iron pentacarbonyl and bis(arene)chromium compounds, respectively. Composites structures and morphologies preliminary study were performed using X-ray diffraction, scanning and transmission electron microscopy and Raman scattering. The atomic and chemical composition of the MWCNTs\u2019 surface, Fe-coating and Cr-coating and interface\u2014(MWCNTs surface)\/(metal coating) were studied by total electron yield method in the region of near-edge X-ray absorption fine structure (NEXAFS) C1s, Fe2p and Cr2p absorption edges using synchrotron radiation of the Russian-German dipole beamline (RGBL) at BESSY-II and the X-ray photoelectron spectroscopy (XPS) method using the ESCALAB 250 Xi spectrometer and charge compensation system. The absorption cross sections in the NEXAFS C1s edge of the nanocomposites and MWCNTs were measured using the developed approach of suppressing and estimating the contributions of the non-monochromatic background and multiple reflection orders radiation from the diffraction grating. The efficiency of the method was demonstrated by the example of the Cr\/MWCNT nanocomposite, since its Cr2p NEXAFS spectra contain additional C1s NEXAFS in the second diffraction order. The study has shown that the MWCNTs\u2019 top layers in composite have no significant destruction; the MWCNTs\u2019 metal coatings are continuous and consist of Fe3O4 and Cr2O3. It is shown that the interface between the MWCNTs and pyrolytic Fe and Cr coatings has a multilayer structure: a layer in which carbon atoms along with epoxy \u2013C\u2013O\u2013C\u2013 bonds form bonds with oxygen and metal atoms from the coating layer is formed on the outer surface of the MWCNT, a monolayer of metal carbide above it and an oxide layer on top. The iron oxide and chromium oxide adhesion is provided by single, double and epoxy chemical binding formation between carbon atoms of the MWCNT top layer and the oxygen atoms of the coating, as well as the formation of bonds with metal atoms.<\/jats:p>","DOI":"10.3390\/nano10020374","type":"journal-article","created":{"date-parts":[[2020,2,21]],"date-time":"2020-02-21T08:59:47Z","timestamp":1582275587000},"page":"374","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["The Structure and Chemical Composition of the Cr and Fe Pyrolytic Coatings on the MWCNTs\u2019 Surface According to NEXAFS and XPS Spectroscopy"],"prefix":"10.3390","volume":"10","author":[{"given":"Danil","family":"Sivkov","sequence":"first","affiliation":[{"name":"Federal State Budgetary Educational Institution of Higher Education \u201cSaint-Petersburg State University\u201d, 199034 St. Petersburg, Russia"},{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga","family":"Petrova","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alena","family":"Mingaleva","sequence":"additional","affiliation":[{"name":"Federal State Budgetary Educational Institution of Higher Education \u201cSaint-Petersburg State University\u201d, 199034 St. Petersburg, Russia"},{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anatoly","family":"Ob\u2019edkov","sequence":"additional","affiliation":[{"name":"G.A.Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boris","family":"Kaverin","sequence":"additional","affiliation":[{"name":"G.A.Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5395-4180","authenticated-orcid":false,"given":"Sergey","family":"Gusev","sequence":"additional","affiliation":[{"name":"Institute for Physics of Microstructures of the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2643-9690","authenticated-orcid":false,"given":"Ilya","family":"Vilkov","sequence":"additional","affiliation":[{"name":"G.A.Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey","family":"Isaenko","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dmitriy","family":"Bogachuk","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roman","family":"Skandakov","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viktor","family":"Sivkov","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey","family":"Nekipelov","sequence":"additional","affiliation":[{"name":"Komi Science Center Ural Division of the Russian Academy of Sciences, 167982 Syktyvkar, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2887","DOI":"10.1039\/b105058n","article-title":"Science and technology of nanomaterials: Current status and future prospects","volume":"11","author":"Rao","year":"2001","journal-title":"J. Mater. Chem."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1016\/j.msea.2009.01.073","article-title":"Electrical and mechanical properties of carbon nanotube reinforced coppernanocomposites fabricated by electroless deposition process","volume":"513\u2013514","author":"Daoush","year":"2009","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Aborkin, A., Khorkov, K., Prusov, E., Kremlev, K., Perezhogin, I., and Alymov, M. (2019). Effect of Increasing the Strength of Aluminum Matrix Nanocomposites Reinforced with Microadditions of Multiwalled Carbon Nanotubes Coated with TiC Nanoparticles. Nanomaterials, 9.","DOI":"10.3390\/nano9111596"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1348","DOI":"10.1021\/cr800433k","article-title":"Carbon Nanotube-Inorganic Hybrids","volume":"110","author":"Eder","year":"2010","journal-title":"Chem. Rev."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"951","DOI":"10.1016\/0022-3697(95)00381-9","article-title":"Wetting, filling and decorating carbon nanotubes","volume":"57","author":"Ebbesen","year":"1996","journal-title":"J. Phys. Chem. Solids"},{"key":"ref_6","first-page":"105","article-title":"Chemistry of Carbon Nanotubes","volume":"Volume 56","author":"Golotsi","year":"2006","journal-title":"Nanomaterials Handbook"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"762","DOI":"10.1016\/j.carbon.2005.09.010","article-title":"Hydrogen storage in carbon nanotubes modified by microwaveplasma etching and Pd decoration","volume":"44","author":"Mu","year":"2006","journal-title":"Carbon"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"7213","DOI":"10.1021\/jp0602474","article-title":"Magnetic Carbon Nanotubes: Synthesis by Electrostatic Self-Assembly Approach and Application in Biomanipulations","volume":"110","author":"Gao","year":"2006","journal-title":"J. Phys. Chem. B"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1298","DOI":"10.1016\/j.carbon.2005.12.038","article-title":"The growth of carbon nanostructures in the channels of aligned carbon nanotube","volume":"44","author":"Zhao","year":"2006","journal-title":"Carbon"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"622","DOI":"10.1038\/424622a","article-title":"A barrier falls","volume":"424","author":"Tersoff","year":"2003","journal-title":"Nature"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"595","DOI":"10.1134\/S1070427215040072","article-title":"Effect of the Catalytic System Based on Multi-Walled Carbon Nanotubes Modified with Copper Nanoparticles on the Kinetics of Catalytic Reduction of Germanium Tetrachloride by Hydrogen","volume":"88","author":"Kadomtseva","year":"2015","journal-title":"Russ. J. Appl. Chem."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1417","DOI":"10.1016\/j.carbon.2008.06.021","article-title":"Direct synthesis of carbon nanotubes decorated with size-controllable Fe nanoparticles encapsulated by graphitic layers","volume":"46","author":"Liu","year":"2008","journal-title":"Carbon"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"3554","DOI":"10.1039\/C9RA09561F","article-title":"Chemoselective reduction of nitro and nitrilecompounds using an Fe3O4-MWCNTs@PEI-Ag nanocomposite as a reusable catalyst","volume":"10","author":"Ansari","year":"2020","journal-title":"RSC Adv."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1016\/j.jcis.2019.11.119","article-title":"Recyclable Ag-decorated highly carbonaceous magnetic nanocomposites for the removal of organic pollutants","volume":"562","author":"Islam","year":"2020","journal-title":"J. Colloid Interface Sci."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"348","DOI":"10.1016\/0021-9517(82)90178-6","article-title":"An XPS Study of the Phillips Cr\/Silica Polymerization Catalyst","volume":"77","author":"Merryfield","year":"1982","journal-title":"J. Catal."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.cattod.2005.10.012","article-title":"Dehydrogenation of paraffins: Synergies between catalystdesign and reactor engineering","volume":"111","author":"Sanfilippo","year":"2006","journal-title":"Catal. Today"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"166","DOI":"10.1006\/jcat.1993.1198","article-title":"Surface Chemistry of Supported Chromium Oxide Catalysts","volume":"142","author":"Kim","year":"1993","journal-title":"J. Catal."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"035504","DOI":"10.1088\/0957-4484\/19\/03\/035504","article-title":"Preparation of porous chromium oxide nanotubes using carbon nanotubes as templates and their application as an ethanol sensor","volume":"19","author":"An","year":"2008","journal-title":"Nanotechnology"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1134\/S1063785017040241","article-title":"Deposition of Nanocrystalline Nonstoichiometric Chromium Oxide Coatings on the Surface of Multiwalled Carbon Nanotubes by Chromium Acetylacetonate Vapor Pyrolysis","volume":"43","author":"Kremlev","year":"2017","journal-title":"Tech. Phys. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1134\/S1063783415010291","article-title":"X-Ray and Synchrotron Investigations of Heterogeneous Systems Based on Multiwalled Carbon Nanotubes","volume":"57","author":"Sivkov","year":"2015","journal-title":"Phys. Solid State"},{"key":"ref_21","first-page":"1536","article-title":"NEXAFS Study of the Composite Materials MWCNTs-Pyrolytic Metals by Synchrotron Radiation","volume":"23","author":"Sivkov","year":"2014","journal-title":"Fuller. Nanotub. Carbon. Nanostruct."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1051","DOI":"10.1134\/S1063782613080174","article-title":"X-Ray and Synchrotron Studies of Porous Silicon","volume":"47","author":"Sivkov","year":"2013","journal-title":"Semiconductors"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"eaax2805","DOI":"10.1126\/sciadv.aax2805","article-title":"Extreme biomimetics: Preservation of molecular detail in centimeter-scale samples of biological meshes laid down by sponges","volume":"5","author":"Petrenko","year":"2019","journal-title":"Sci. Adv."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"152","DOI":"10.22226\/2410-3535-2012-3-152-156","article-title":"Macroscopic cylinders on the basis of radial-oriented multi-wall car-bon nanotubes","volume":"2","author":"Kaverin","year":"2012","journal-title":"Lett. Mater."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"506","DOI":"10.1016\/S0168-9002(98)00310-6","article-title":"Optical design of the high-energy resolution beamline at a dipole magnet of BESSY II","volume":"411","author":"Gorovikov","year":"1998","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"718","DOI":"10.1016\/S0168-9002(03)00624-7","article-title":"Commissioning results and performance of the high-resolution Russian-German Beamline at BESSY II","volume":"505","author":"Fedoseenko","year":"2003","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"2608","DOI":"10.1103\/PhysRevB.48.2608","article-title":"Carbon 1s near-edge-absorption fine structure in graphite","volume":"48","author":"Batson","year":"1993","journal-title":"Phys. Rev. B"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1006\/adnd.1993.1013","article-title":"X-ray interactions: Photoabsorption, scattering, transmission and reflection at E = 50\u201330000 eV, Z = 1\u201392","volume":"54","author":"Henke","year":"1993","journal-title":"At. Data Nucl. Data Tables"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"155433","DOI":"10.1103\/PhysRevB.80.155433","article-title":"Oscillator strength of the peptide bond \u03c0* resonances at all relevant x-ray absorption edges","volume":"80","author":"Kummer","year":"2009","journal-title":"Phys. Rev. B"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"638","DOI":"10.1016\/S0254-0584(03)00341-9","article-title":"Characterization of multiwalled carbon nanotubes prepared by carbon arc cathode deposit","volume":"82","author":"Zhu","year":"2003","journal-title":"Mater. Chem. Phys."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.mseb.2005.02.046","article-title":"Characterization methods of carbon nanotubes: A review","volume":"119","author":"Belin","year":"2005","journal-title":"Mater. Sci. Eng. B"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"4846","DOI":"10.1143\/JJAP.37.4846","article-title":"Raman spectra and X-ray diffraction patterns of carbon nanotubes by hydrogen Arc discharge","volume":"37","author":"Zhao","year":"1998","journal-title":"Jpn. J. Appl. Phys."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"2585","DOI":"10.1016\/S0008-6223(03)00330-0","article-title":"99.9% purity multi-walled carbonnanotubes by vacuum high-temperature annealing","volume":"41","author":"Huang","year":"2003","journal-title":"Carbon"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1416","DOI":"10.1002\/cphc.200400122","article-title":"Surface Chemistry and Structure of Purified, Ozonized, Multiwalled Carbon Nanotubes Probed by NEXAFS and Vibrational Spectroscopies","volume":"5","author":"Banerjee","year":"2004","journal-title":"ChemPhysChem"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"8489","DOI":"10.1021\/jp047408t","article-title":"Near-Edge X-ray Absorption Fine Structure Investigations of Order in Carbon Nanotube-Based Systems","volume":"109","author":"Banerjee","year":"2005","journal-title":"J. Phys. Chem. B"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"155439","DOI":"10.1103\/PhysRevB.79.155439","article-title":"Electronic structure of fluorinated multiwalled carbon nanotubes studied using x-ray absorption and photoelectron spectroscopy","volume":"79","author":"Brzhezinskaya","year":"2009","journal-title":"Phys. Rev. B"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1016\/j.cis.2008.07.006","article-title":"Photoemission and absorption spectroscopy of carbon nanotube interfacial interaction","volume":"145","author":"Tran","year":"2009","journal-title":"Adv. Colloid Interface Sci."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"873","DOI":"10.1002\/(SICI)1097-4555(199711)28:11<873::AID-JRS177>3.0.CO;2-B","article-title":"Raman Microspectroscopy of Some Iron Oxides and Oxyhydroxides","volume":"28","year":"1997","journal-title":"J. Raman Spectrosc."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/0304-8853(78)90138-5","article-title":"The optical absorption of iron oxides","volume":"7","author":"Balberg","year":"1978","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"2289","DOI":"10.1063\/1.1733964","article-title":"Comparison of the Crystal Fields and Optical Spectra of Cr2O3 and Ruby","volume":"38","author":"McClure","year":"1963","journal-title":"J. Chem. Phys."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Li, Q., Gou, Y., Wang, T.-G., Gu, T., Yu, Q., and Wang, L. (2019). Study on Local Residual Stress in a Nanocrystalline Cr2O3 Coating by Micro-Raman Spectroscopy. Coatings, 9.","DOI":"10.3390\/coatings9080500"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/0010-938X(92)90014-T","article-title":"Ex situ and in situ determination of stress distributions in chromium oxide films by Raman microscopy","volume":"33","author":"Birnie","year":"1992","journal-title":"Corros. Sci."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"1649","DOI":"10.1016\/S1359-6462(98)00079-7","article-title":"Oxide scale stress determination by Raman spectroscopy application to the NiCr\/Cr2O3 system and influence of yttrium","volume":"38","author":"Calvarin","year":"1998","journal-title":"Scr. Mater."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1103\/PhysRevLett.29.169","article-title":"Close Similarity between Photoelectric Yield and Photoabsorption Spectra in the Soft-X-Ray Range","volume":"29","author":"Gudat","year":"1972","journal-title":"Phys. Rev. Lett."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1852","DOI":"10.1063\/1.323938","article-title":"0.1\u201310 keV X-ray induced electron emissions from solids\u2014Models and secondary electron measurements","volume":"48","author":"Henke","year":"1977","journal-title":"J. Appl. Phys."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1509","DOI":"10.1063\/1.329789","article-title":"The characterization of x-ray photocathodes in the 0.1\u201310 keV photon energy region","volume":"52","author":"Henke","year":"1981","journal-title":"J. Appl. Phys."},{"key":"ref_47","first-page":"1512","article-title":"Metallic titanium X-ray absorption cross section spectral dependences in the energy range 240\u20131500 eV","volume":"36","author":"Nekipelov","year":"1994","journal-title":"Phys. Solid State"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1016\/0038-1098(69)90625-5","article-title":"Optical absorption measurements of the transition metals Ti, V, Cr, Mn, Fe, Co, Ni in the region of 3p electron transitions","volume":"7","author":"Sonntag","year":"1969","journal-title":"Solid State Commun."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"1762","DOI":"10.1103\/PhysRevB.19.1762","article-title":"X-ray absorption fine structure above the Ti L-edge","volume":"19","author":"Denley","year":"1979","journal-title":"Phys. Rev. B"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"214422","DOI":"10.1103\/PhysRevB.64.214422","article-title":"Chemical effects at metal\/oxide interfaces studied by x-ray-absorption spectroscopy","volume":"64","author":"Regan","year":"2001","journal-title":"Phys. Rev. B"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1016\/j.jallcom.2016.02.194","article-title":"Bonding structure and morphology of chromium oxide films grown by pulsed-DC reactive magnetron sputter deposition","volume":"672","author":"Gago","year":"2016","journal-title":"J. Alloys Compd."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"060401","DOI":"10.1103\/PhysRevB.72.060401","article-title":"Correlations in the electronic structure of half-metallic ferromagnetic CrO2 films: An x-ray absorption and resonant photoemission spectroscopy study","volume":"72","author":"Dedkov","year":"2005","journal-title":"Phys. Rev. B."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"2426","DOI":"10.1103\/PhysRevLett.65.2426","article-title":"Bonding, structure, and magnetism of physisorbed and chemisorbed O2 on Pt(111)","volume":"65","author":"Wurth","year":"1990","journal-title":"Phys. Rev. Lett."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"67004","DOI":"10.1209\/0295-5075\/82\/67004","article-title":"X-ray absorption spectroscopy of graphite oxide","volume":"82","author":"Jeong","year":"2008","journal-title":"Eur. Lett."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"L253","DOI":"10.1016\/0039-6028(88)90624-3","article-title":"The orientation of the carbonate anion on Ag (110)","volume":"197","author":"Madix","year":"1988","journal-title":"Surf. Sci."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0167-5729(97)00011-3","article-title":"NEXAFS investigations of transition metal oxides, nitrides, carbides, sulfides and other interstitial compounds","volume":"30","author":"Chen","year":"1997","journal-title":"Surf. Sci. Rep."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1017\/S1431927606060144","article-title":"Electron Energy Loss Spectroscopy (EELS) of Iron Fischer\u2013Tropsch Catalysts","volume":"12","author":"Jin","year":"2006","journal-title":"Microsc. Microanal."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"026101","DOI":"10.1103\/PhysRevLett.109.026101","article-title":"Formation and Structure of Graphene Waves on Fe(110)","volume":"109","author":"Vinogradov","year":"2012","journal-title":"Phys. Rev. Lett."},{"key":"ref_59","doi-asserted-by":"crossref","unstructured":"McGuire, G.E. (1979). Carbon. Auger Electron Spectroscopy Reference Manual, Plenum Press.","DOI":"10.1007\/978-1-4757-1702-0"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1002\/sia.740010103","article-title":"Quantitative electron spectroscopy of surfaces: A standard data base for electron inelastic mean free paths in solids","volume":"1","author":"Seah","year":"1979","journal-title":"Surf. Interface Anal."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"535","DOI":"10.1080\/1536383X.2016.1197910","article-title":"XPS characterization of MWCNT and C60-based composites","volume":"24","author":"Skryleva","year":"2016","journal-title":"Fuller. Nanotub. Carbon. Nanostruct."},{"key":"ref_62","doi-asserted-by":"crossref","unstructured":"Singer, G., Siedlaczek, P., Sinn, G., Rennhofer, H., Mi\u010du\u0161\u00edk, M., Omastov\u00e1, M., Unterlass, M.M., Wendrinsky, J., Milotti, V., and Fedi, F. (2018). Acid Free Oxidation and Simple Dispersion Method of MWCNT for High-Performance CFRP. Nanomaterials, 8.","DOI":"10.3390\/nano8110912"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"8116","DOI":"10.1021\/jp991659y","article-title":"Work Functions and Surface Functional Groups of Multiwall Carbon Nanotubes","volume":"103","author":"Ago","year":"1999","journal-title":"J. Phys. Chem. B"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/j.carbon.2004.08.033","article-title":"High resolution XPS characterization of chemical functionalised MWCNTs and SWCNTs","volume":"43","author":"Okpalugo","year":"2005","journal-title":"Carbon"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"11068","DOI":"10.1021\/jp101868s","article-title":"Investigation on the Electronic and Optical Properties of Short Oxidized Multiwalled Carbon Nanotubes","volume":"114","author":"Minati","year":"2010","journal-title":"J. Phys. Chem. C"},{"key":"ref_66","doi-asserted-by":"crossref","unstructured":"Jang, M.-H., and Hwang, Y.S. (2018). Effects of functionalized multi-walled carbon nanotubes on toxicity and bioaccumulation of lead in Daphnia magna. PLoS ONE, 13.","DOI":"10.1371\/journal.pone.0194935"},{"key":"ref_67","unstructured":"National Institute of Standards and Technology (2020, January 31). NIST Electron Inelastic-Mean-Free-Path Database: Version 1.2, Available online: https:\/\/www.nist.gov\/srd\/nist-standard-reference-database-71."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"7729","DOI":"10.1016\/j.apsusc.2009.04.151","article-title":"Chromium carbide thin films deposited by ultra-short pulse laser deposition","volume":"255","author":"Teghil","year":"2009","journal-title":"Appl. Surf. Sci."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"914","DOI":"10.1016\/j.apsusc.2018.06.248","article-title":"Microstructure evolution, wear and corrosion resistance of Cr-C nanocomposite coatings in seawater","volume":"457","author":"Zhao","year":"2018","journal-title":"Appl. Surf. Sci."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"2271","DOI":"10.1111\/j.1151-2916.1995.tb08655.x","article-title":"Hot isostatic pressing and characterization of sol-gel-derived chromium (III) oxide","volume":"78","author":"Kawabata","year":"1995","journal-title":"J. Am. Ceram. Soc."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1016\/0965-9773(95)00266-H","article-title":"Synthesis, sintering, and magnetic properties of nanophase Cr2O3","volume":"5","author":"Balachandran","year":"1995","journal-title":"Nanostruct. Mater."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1016\/j.matlet.2012.11.127","article-title":"Controlled synthesis of large-sized Cr2O3 via hydrothermal reduction","volume":"93","author":"Pei","year":"2013","journal-title":"Mater. Lett."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1016\/j.snb.2012.08.073","article-title":"Highly toluene sensing performance based on monodispersed Cr2O3 porous microspheres","volume":"174","author":"Ma","year":"2012","journal-title":"Sens. Actuators B Chem."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1080\/1536383X.2010.533302","article-title":"Photonic activity for MB solution of metal oxide\/CNT catalysts derived from different organometallic compounds","volume":"20","author":"Chen","year":"2012","journal-title":"Fuller. Nanotub. Carbon. Nanostruct."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"1476","DOI":"10.1016\/j.carbon.2007.03.025","article-title":"Self-assembly of magnetite beads along multiwalled carbon nanotubes via a simple hydrothermal process","volume":"45","author":"Jia","year":"2007","journal-title":"Carbon"},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"2993","DOI":"10.1002\/adma.200501562","article-title":"A Highly efficient chemical sensor material for H2S: \u03b1-Fe2O3 nanotubes fabricated using carbon nanotube templates","volume":"17","author":"Sun","year":"2005","journal-title":"Adv. Mater."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"03D101","DOI":"10.1116\/1.3692724","article-title":"Conformally coating vertically aligned carbon nanotube arrays using thermal decomposition of iron pentacarbonyl","volume":"30","author":"Hildreth","year":"2012","journal-title":"J. Vac. Sci. Technol. 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