{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T09:05:30Z","timestamp":1790067930742,"version":"4.0.1"},"reference-count":70,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Scientific Research Project of the Education Department of Anhui Province","award":["2025AHGXZK31115"],"award-info":[{"award-number":["2025AHGXZK31115"]}]},{"name":"Scientific Research Project of the Education Department of Anhui Province","award":["2025AHGXZK30446"],"award-info":[{"award-number":["2025AHGXZK30446"]}]},{"award":["2025AHGXZK31115"],"award-info":[{"award-number":["2025AHGXZK31115"]}],"id":[{"id":"https:\/\/ror.org\/012m7k033","id-type":"ROR","asserted-by":"publisher"}]},{"award":["2025AHGXZK30446"],"award-info":[{"award-number":["2025AHGXZK30446"]}],"id":[{"id":"https:\/\/ror.org\/012m7k033","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Wuhu Technology Research and Development Center","award":["WHSYFZX202307"],"award-info":[{"award-number":["WHSYFZX202307"]}]},{"name":"2025 Annual School-level Scientific Research Project of Wuhu Vocational Technical University","award":["wzyrc202517"],"award-info":[{"award-number":["wzyrc202517"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Biochar carriers were prepared from cotton residue waste, and Fe-Co bimetallic catalysts with different ratios were constructed using impregnation method. Their catalytic performance in CO2 hydrogenation to hydrocarbons was investigated. The structural evolution and catalytic behavior of the catalyst were systematically studied through various characterization methods such as XRD, XPS, TEM, BET, and DFT calculations. Based on the characterization of fresh and spent catalysts, the spinel phase of CoFe2O4 in the fresh catalyst is proposed to transform substantially into metallic Fe0 and Co0 upon H2 reduction; during subsequent CO2 hydrogenation, these metallic phases are proposed to partially convert to \u03c7-(Fe1\u2212xCox)5C2 carbides, accompanied by partial graphitization of the biochar support. Because no sample was characterized after H2 reduction but before CO2 hydrogenation, this sequence is inferred. Under the same experimental conditions, Fe15Co5-BC exhibits the best CO2 conversion, with CH4 and C2-C4 alkanes as the main products, indicating that the system possesses bifunctional catalytic characteristics combining CO2 methanation and Fischer\u2013Tropsch synthesis. The CO selectivity exhibited a V-shaped trend with respect to Co loading, with the lowest value achieved at the intermediate Fe\/Co ratio (Fe15Co5-BC), mainly attributed to the improved overall CO2 conversion and the efficient conversion of carbon intermediates into hydrocarbons. DFT calculations reveal that Fe-Co bimetallic sites synergistically weaken C-O bonds and thermodynamically favor deep hydrogenation pathways. This work provides experimental and theoretical insights for the application of biochar-based bimetallic catalysts in CO2 hydrogenation.<\/jats:p>","DOI":"10.3390\/ma19194034","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T08:17:54Z","timestamp":1790065074000},"page":"4034","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Synthesis of Fe-Co Bimetallic Supported on Cotton Residue Biochar: Catalytic Performance and Mechanistic Investigation for CO2 Hydrogenation"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2564-4657","authenticated-orcid":false,"given":"Youzhi","family":"Yao","sequence":"first","affiliation":[{"name":"College of Materials Engineering, Wuhu Vocational Technical University, Wuhu 241003, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"funding-acquisition","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"}]},{"given":"Tiancheng","family":"Yao","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Hohai University, Changzhou 213000, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-3628-0376","authenticated-orcid":false,"given":"Qinghua","family":"Deng","sequence":"additional","affiliation":[{"name":"College of Materials Engineering, Wuhu Vocational Technical University, Wuhu 241003, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"}]},{"given":"Jiaxin","family":"Jiang","sequence":"additional","affiliation":[{"name":"College of Materials Engineering, Wuhu Vocational Technical University, Wuhu 241003, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"visualization","vocabulary":"credit"}]},{"given":"Tianyu","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"software","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"}]},{"given":"Wenjie","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Materials Engineering, Wuhu Vocational Technical University, Wuhu 241003, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"supervision","vocabulary":"credit"},{"role":"software","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"107179","DOI":"10.1016\/j.biombioe.2024.107179","article-title":"Engineering biochar-supported nickel catalysts for efficient CO2 methanation","volume":"184","author":"Frainetti","year":"2024","journal-title":"Biomass Bioenerg."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"115919","DOI":"10.1016\/j.apenergy.2020.115919","article-title":"Experimental study and life cycle assessment of CO2 methanation over biochar supported catalysts","volume":"280","author":"Wang","year":"2020","journal-title":"Appl. Energy"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"101740","DOI":"10.1016\/j.jcou.2021.101740","article-title":"Biochar as support in catalytic CO2 methanation: Enhancing effect of CeO2 addition","volume":"53","author":"Renda","year":"2021","journal-title":"J. CO2 Util."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"14974","DOI":"10.1016\/j.ijhydene.2018.06.054","article-title":"Experimental study of dual fixed bed biochar-catalytic gasification with simultaneous feed of O2-steam-CO2 for synthesis gas or hydrogen production","volume":"43","author":"Kraisornkachit","year":"2018","journal-title":"Int. J. Hydrogen Energy"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"872","DOI":"10.1016\/j.ijhydene.2024.01.204","article-title":"Research progress of bimetallic catalysts for CO2 hydrogenation to methane","volume":"58","author":"Wei","year":"2024","journal-title":"Int. J. Hydrogen Energy"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"8815","DOI":"10.1021\/acs.energyfuels.6b01723","article-title":"Recent Advancements, Fundamental Challenges, and Opportunities in Catalytic Methanation of CO2","volume":"30","author":"Younas","year":"2016","journal-title":"Energy Fuels"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"121903","DOI":"10.1016\/j.apcatb.2022.121903","article-title":"Experimental and theoretical insights into an enhanced CO2 methanation mechanism over a Ru-based catalyst","volume":"319","author":"Li","year":"2022","journal-title":"Appl. Catal. B-Environ."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"138661","DOI":"10.1016\/j.cej.2022.138661","article-title":"Synergetic effect of non-thermal plasma and supported cobalt catalyst in plasma-enhanced CO2 hydrogenation","volume":"451","author":"Wang","year":"2023","journal-title":"Chem. Eng. J."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"123262","DOI":"10.1016\/j.fuel.2022.123262","article-title":"Effect of pore structure on Ni\/Al2O3 microsphere catalysts for enhanced CO2 methanation","volume":"315","author":"Yi","year":"2022","journal-title":"Fuel"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"184","DOI":"10.1016\/j.cjche.2025.02.002","article-title":"Research progress on the monolithic catalyst for hydrogenation of CO2 to methane","volume":"80","author":"Liu","year":"2025","journal-title":"Chin. J. Chem. Eng."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"131106","DOI":"10.1016\/j.cej.2021.131106","article-title":"Bed packing configuration and hot-spot utilization for low-temperature CO2 methanation on monolithic reactor","volume":"428","author":"Huynh","year":"2022","journal-title":"Chem. Eng. J."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4061","DOI":"10.1039\/D0CY00639D","article-title":"Mono- and bimetallic metal catalysts based on Ni and Ru supported on alumina-coated monoliths for CO2 methanation","volume":"10","author":"Bustinza","year":"2020","journal-title":"Catal. Sci. Technol."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"115955","DOI":"10.1016\/j.ces.2020.115955","article-title":"Catalytic activities of titania-supported nickel for carbon-dioxide methanation","volume":"228","author":"Unwiset","year":"2020","journal-title":"Chem. Eng. Sci."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1095","DOI":"10.1039\/C8CS00887F","article-title":"New trends in tailoring active sites in zeolite-based catalysts","volume":"48","author":"Shamzhy","year":"2019","journal-title":"Chem. Soc. Rev."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"969","DOI":"10.1071\/CH19355","article-title":"Carbon dioxide methanation over nickel catalysts supported on activated carbon at low temperature","volume":"72","author":"Cam","year":"2019","journal-title":"Aust. J. Chem."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"213585","DOI":"10.1016\/j.ccr.2020.213585","article-title":"Biochar as a support for nanocatalysts and other reagents: Recent advances and applications","volume":"426","author":"Lopes","year":"2021","journal-title":"Coord. Chem. Rev."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Pawelczyk, E., Wysocka, I., and G\u0119bicki, J. (2022). Pyrolysis combined with the dry reforming of waste plastics as a potential method for resource recovery-a review of process parameters and catalysts. Catalysts, 12.","DOI":"10.3390\/catal12040362"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Ramos, R., Abdelkader-Fernandez, V.K., Matos, R., Peixoto, A.F., and Fernandes, D.M. (2022). Metal-supported biochar catalysts for sustainable Biorefinery, Electrocatalysis, and energy storage applications: A review. Catalysts, 12.","DOI":"10.3390\/catal12020207"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"100421","DOI":"10.1016\/j.biteb.2020.100421","article-title":"Waste chars from wood gasification and wastewater sludge pyrolysis compared to commercial activated carbon for the removal of cationic and anionic dyes from aqueous solution","volume":"10","author":"Ravenni","year":"2020","journal-title":"Bioresour. Technol. Rep."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"126825","DOI":"10.1016\/j.jclepro.2021.126825","article-title":"Advances in metal\/biochar catalysts for biomass hydro upgrading: A review","volume":"303","author":"Wang","year":"2021","journal-title":"J. Clean. Prod."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"115842","DOI":"10.1016\/j.apenergy.2020.115842","article-title":"Effects of slow-pyrolysis conditions on the products yields and properties and on exergy efficiency: A comprehensive assessment for wheat straw","volume":"279","author":"Greco","year":"2020","journal-title":"Appl. Energy"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"105435","DOI":"10.1016\/j.biombioe.2019.105435","article-title":"Pyrolysis chars and physically activated carbons prepared from buckwheat husks for catalytic purification of syngas","volume":"132","author":"Pena","year":"2020","journal-title":"Biomass Bioenerg."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"106467","DOI":"10.1016\/j.catcom.2022.106467","article-title":"Nanoarchitectonics of sulfonated biochar from pine needles as catalyst for conversion of biomass derived chemicals to value added products","volume":"168","author":"Kumari","year":"2022","journal-title":"Catal. Commun."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"121935","DOI":"10.1016\/j.fuel.2021.121935","article-title":"An integrated two-step process of reforming and adsorption using biochar for enhanced tar removal in syngas cleaning","volume":"307","author":"Singh","year":"2022","journal-title":"Fuel"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"132712","DOI":"10.1016\/j.jclepro.2022.132712","article-title":"Process optimization, economic and environmental analysis of biodiesel production from food waste using a citrus fruit peel biochar catalyst","volume":"365","author":"Rajendran","year":"2022","journal-title":"J. Clean. Prod."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"105036","DOI":"10.1016\/j.resconrec.2020.105036","article-title":"A review of recent developments in catalytic applications of biochar-based materials","volume":"162","author":"Shan","year":"2020","journal-title":"Resour. Conserv. Recy."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1900149","DOI":"10.1002\/adsu.201900149","article-title":"Critical Review on Biochar-Supported Catalysts for Pollutant Degradation and Sustainable Biorefinery","volume":"4","author":"Kumar","year":"2020","journal-title":"Adv. Sustain. Syst."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2001097","DOI":"10.1002\/adfm.202001097","article-title":"Defect engineering in carbon-based electrocatalysts: Insight into intrinsic carbon defects","volume":"30","author":"Zhu","year":"2020","journal-title":"Adv. Funct. Mater."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"15174","DOI":"10.1038\/ncomms15174","article-title":"Directly converting CO2 into a gasoline fuel","volume":"8","author":"Wei","year":"2017","journal-title":"Nat. Commun."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"9174","DOI":"10.1021\/acscatal.8b02892","article-title":"Metal organic framework-derived iron catalysts for the direct hydrogenation of CO2 to short chain olefins","volume":"8","author":"Ramirez","year":"2018","journal-title":"ACS Catal."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"3629","DOI":"10.1126\/sciadv.abm3629","article-title":"Dynamic structural evolution of iron catalysts involving competitive oxidation and carburization during CO2 hydrogenation","volume":"8","author":"Zhu","year":"2022","journal-title":"Sci. Adv."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"122476","DOI":"10.1016\/j.apcatb.2023.122476","article-title":"Elucidating the structural evolution of highly efficient Co-Fe bimetallic catalysts for the hydrogenation of CO2 into olefins","volume":"328","author":"Liu","year":"2023","journal-title":"Appl. Catal. B-Environ."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"731","DOI":"10.1016\/S1872-2067(21)63802-0","article-title":"Recent advances in application of iron-based catalysts for COx hydrogenation to value-added hydrocarbons","volume":"43","author":"Liu","year":"2022","journal-title":"Chin. J. Catal."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"10486","DOI":"10.1021\/acs.jpclett.1c03043","article-title":"Cobalt catalysts enable selective hydrogenation of CO2 toward diverse products: Recent progress and perspective","volume":"12","author":"Fan","year":"2021","journal-title":"J. Phys. Chem. Lett."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/j.cattod.2016.04.010","article-title":"CO2 hydrogenation to hydrocarbons over Co and Fe-based Fischer-Tropsch catalysts","volume":"277","author":"Visconti","year":"2016","journal-title":"Catal. Today"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1134\/S0965544123030234","article-title":"Hydrogenation of CO2 over Biochar-Supported Catalysts","volume":"63","author":"Sviderskya","year":"2023","journal-title":"Petrol. Chem."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Yao, Y.Z., Yao, T.C., and Qian, C. (2025). Synthesis and Application for Pb2+ Removal of a Novel Magnetic Biochar Embedded with FexOy Nanoparticles. Symmetry, 17.","DOI":"10.3390\/sym17040516"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1016\/S0926-860X(99)00148-9","article-title":"Pretreatment effect studies with a precipitated iron Fischer-Tropsch catalyst in a slurry reactor","volume":"186","author":"Bukur","year":"1999","journal-title":"Appl. Catal. A Gen."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"8210","DOI":"10.1021\/acs.iecr.3c00439","article-title":"Boosting the Production of Light Olefins from CO2 Hydrogenation over Fe-Co Bimetallic Catalysts Derived from Layered Double Hydroxide","volume":"62","author":"Yuan","year":"2023","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"13146","DOI":"10.1021\/la4031014","article-title":"Spinel CuCo2O4 nanoparticles supported on N-doped reduced graphene oxide: A highly active and stable hybrid electrocatalyst for the oxygen reduction reaction","volume":"29","author":"Ning","year":"2013","journal-title":"Langmuir"},{"key":"ref_41","first-page":"592","article-title":"Preparation and characterization of nanoparticles containing Fe3O4 cores in biochar","volume":"37","author":"Jin","year":"2018","journal-title":"J. Agro-Environ. Sci."},{"key":"ref_42","first-page":"517","article-title":"Preparation of Hollow Magnetic Graphene Oxide and Its Adsorption Performance for Methylene Blue","volume":"35","author":"Que","year":"2021","journal-title":"Chin. J. Mater. Res."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"125033","DOI":"10.1016\/j.seppur.2023.125033","article-title":"Facile microwave assisted one-pot solid-state construction of Co-Fe spinel oxide\/porous biochar for highly efficient 4-nitrophenol degradation: Effect of chemical blowing and surface vulcanization","volume":"328","author":"Zhou","year":"2024","journal-title":"Sep. Purif. Technol."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Li, Y.B., He, Y.L., Fujihara, K., Wang, C.W., Sun, X., Gao, W.Z., Guo, X.Y., Yang, G.H., and Tsubaki, N. (2023). A Core-Shell Structured Na\/Fe@Co Bimetallic Catalyst for Light-Hydrocarbon Synthesis from CO2 Hydrogenation. Catalysts, 13.","DOI":"10.3390\/catal13071090"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"2441","DOI":"10.1016\/j.apsusc.2007.09.063","article-title":"Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials","volume":"254","author":"Yamashita","year":"2008","journal-title":"Appl. Surf. Sci."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"8988","DOI":"10.1021\/ic051004d","article-title":"Examination of the Bonding in Binary Transition-Metal Monophosphides MP (M = Cr, Mn, Fe, Co)","volume":"44","author":"Grosvenor","year":"2005","journal-title":"Inorg. Chem."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"2717","DOI":"10.1016\/j.apsusc.2010.10.051","article-title":"Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni","volume":"257","author":"Biesinger","year":"2011","journal-title":"Appl. Surf. Sci."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"1497","DOI":"10.1002\/pat.5984","article-title":"Greener synthesis of lightweight, self-standing PMMA\/CoFe2O4 polymeric film for magnetic, electronic, and terahertz shielding applications","volume":"34","author":"Mohamed","year":"2023","journal-title":"Polym. Adv. Technol."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"8660","DOI":"10.1021\/acscatal.0c01417","article-title":"Cobalt ferrite nanoparticles to form a catalytic Co-Fe alloy carbide phase for selective CO2 hydrogenation to light olefins","volume":"10","author":"Kim","year":"2020","journal-title":"ACS Catal."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"1358","DOI":"10.1016\/j.scib.2018.09.016","article-title":"Fe5C2 nanoparticles as low-cost HER electrocatalyst: The importance of Co substitution","volume":"63","author":"Li","year":"2018","journal-title":"Sci. Bull."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"6016","DOI":"10.1021\/acscatal.2c01078","article-title":"A monodisperse \u03b5\u2032-(CoxFe1\u2212x)2.2C bimetallic carbide catalyst for direct conversion of syngas to higher alcohols","volume":"12","author":"Zeng","year":"2022","journal-title":"ACS Catal."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"2758","DOI":"10.1039\/b805427d","article-title":"The renaissance of iron-based Fischer\u2013Tropsch synthesis: On the multifaceted catalyst deactivation behaviour","volume":"37","author":"Weckhuysen","year":"2008","journal-title":"Chem. Soc. Rev."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"2640","DOI":"10.1021\/acscatal.5b00090","article-title":"Shaped Carbons As Supports for the Catalytic Conversion of Syngas to Clean Fuels","volume":"5","author":"Xiong","year":"2015","journal-title":"ACS Catal."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"104252","DOI":"10.1016\/j.isci.2022.104252","article-title":"High C2-C4 selectivity in CO2 hydrogenation by particle size control of Co-Fe alloy nanoparticles wrapped on N-doped graphitic carbon","volume":"25","author":"Peng","year":"2022","journal-title":"iScience"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"120639","DOI":"10.1016\/j.apcatb.2021.120639","article-title":"N-doped ordered mesoporous carbon (N-OMC) confined Fe3O4-FeCx heterojunction for efficient conversion of CO2 to light olefins","volume":"299","author":"Zhang","year":"2021","journal-title":"Appl. Catal. B-Environ."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"512","DOI":"10.1038\/s41467-024-44763-9","article-title":"CO2 hydrogenation over Fe-Co bimetallic catalysts with tunable selectivity through a graphene fencing approach","volume":"15","author":"Liang","year":"2024","journal-title":"Nat. Commun."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"e202311786","DOI":"10.1002\/anie.202311786","article-title":"Carbon-Based Electron Buffer Layer on ZnOx-Fe5C2-Fe3O4 Boosts Ethanol Synthesis from CO2 Hydrogenation","volume":"62","author":"Wang","year":"2023","journal-title":"Angew. Chem. Int. Ed."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1016\/j.solidstatesciences.2019.05.008","article-title":"Co3O4\/\u03b1-Fe2O3 catalyzed oxidative degradation of gaseous benzene: Preparation, characterization and its catalytic properties","volume":"93","author":"Xiang","year":"2019","journal-title":"Solid State Sci."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"5603","DOI":"10.1021\/acscatal.9b00967","article-title":"Competing mechanisms in CO hydrogenation over Co-MnOx catalysts","volume":"9","author":"Athariboroujeny","year":"2019","journal-title":"ACS Catal."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"104967","DOI":"10.1016\/j.jwpe.2024.104967","article-title":"Persulfate Oxidation of Norfloxacin by Cobalt Doped Water Hyacinth Biochar Composite: The Key Role of Cobalt and Singlet Oxygen","volume":"59","author":"Yi","year":"2024","journal-title":"J. Water Process Eng."},{"key":"ref_61","first-page":"208","article-title":"Cd removal from aqueous solution using magnetic biochar derived from maize straw and its recycle","volume":"34","author":"Hu","year":"2018","journal-title":"Trans. Chin. Soc. Agric. Eng."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1051","DOI":"10.1515\/pac-2014-1117","article-title":"Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC Technical Report)","volume":"87","author":"Thommes","year":"2015","journal-title":"Pure Appl. Chem."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"147378","DOI":"10.1016\/j.cej.2023.147378","article-title":"Degradation of norfloxacin by sulfur-doped iron-cobalt oxides activated perodisulfate: Synergism between free radicals and singlet oxygen","volume":"478","author":"Zhai","year":"2023","journal-title":"Chem. Eng. J."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"366","DOI":"10.1016\/S1872-2067(24)60188-9","article-title":"The electronic interaction of encapsulating graphene layers with FeCo alloy promotes efficient CO2 Hydrogenation to light olefins","volume":"68","author":"Zhang","year":"2025","journal-title":"Chin. J. Catal."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"128433","DOI":"10.1016\/j.jhazmat.2022.128433","article-title":"Facile fabrication of surface vulcanized Co-Fe spinel oxide nanoparticles toward efficient 4-nitrophenol destruction","volume":"430","author":"Zhu","year":"2022","journal-title":"J. Hazard. Mater."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"1758","DOI":"10.1103\/PhysRevB.59.1758","article-title":"From ultrasoft pseudopotentials to the projector augmented-wave method","volume":"59","author":"Kresse","year":"1999","journal-title":"Phys. Rev. B"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1016\/0927-0256(96)00008-0","article-title":"Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set","volume":"6","author":"Kresse","year":"1996","journal-title":"Comput. Mater. Sci."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"3865","DOI":"10.1103\/PhysRevLett.77.3865","article-title":"Generalized Gradient Approximation Made Simple","volume":"77","author":"Perdew","year":"1996","journal-title":"Phys. Rev. Lett."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"154104","DOI":"10.1063\/1.3382344","article-title":"A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu","volume":"132","author":"Grimme","year":"2010","journal-title":"J. Chem. Phys."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"17886","DOI":"10.1021\/jp047349j","article-title":"Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode","volume":"108","author":"Rossmeisl","year":"2004","journal-title":"J. Phys. Chem. 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