{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T17:34:42Z","timestamp":1777656882764,"version":"3.51.4"},"reference-count":85,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,12,29]],"date-time":"2021-12-29T00:00:00Z","timestamp":1640736000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00081\/2020"],"award-info":[{"award-number":["UIDB\/00081\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["02\/SAICT\/2017"],"award-info":[{"award-number":["02\/SAICT\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>A suitable dispersion of carbon materials (e.g., carbon nanotubes (CNTs)) in an appropriate dispersant media, is a prerequisite for many technological applications (e.g., additive purposes, functionalization, mechanical reinforced materials for electrolytes and electrodes for energy storage applications, etc.). Deep eutectic solvents (DES) have been considered as a promising \u201cgreen\u201d alternative, providing a versatile replacement to volatile organic solvents due to their unique physical-chemical properties, being recognized as low-volatility fluids with great dispersant ability. The present work aims to contribute to appraise the effect of the presence of MWCNTs and Ag-functionalized MWCNTs on the physicochemical properties (viscosity, density, conductivity, surface tension and refractive index) of glyceline (choline chloride and glycerol, 1:2), a Type III DES. To benefit from possible synergetic effects, AgMWCNTs were prepared through pulse reverse electrodeposition of Ag nanoparticles into MWCNTs. Pristine MWCNTs were used as reference material and water as reference dispersant media for comparison purposes. The effect of temperature (20 to 60 \u00b0C) and concentration on the physicochemical properties of the carbon dispersions (0.2\u20131.0 mg cm\u22123) were assessed. In all assessed physicochemical properties, AgMWCNTs outperformed pristine MWCNTs dispersions. A paradoxical effect was found in the viscosity trend in glyceline media, in which a marked decrease in the viscosity was found for the MWCNTs and AgMWCNTs materials at lower temperatures. All physicochemical parameters were statistically analyzed using a two-way analysis of variance (ANOVA), at a 5% level of significance.<\/jats:p>","DOI":"10.3390\/nano12010099","type":"journal-article","created":{"date-parts":[[2021,12,29]],"date-time":"2021-12-29T23:31:35Z","timestamp":1640820695000},"page":"99","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Characterization of Carbon Nanomaterials Dispersions: Can Metal Decoration of MWCNTs Improve Their Physicochemical Properties?"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3291-7713","authenticated-orcid":false,"given":"Ana T. S. C.","family":"Brand\u00e3o","sequence":"first","affiliation":[{"name":"CIQUP\u2014Physical Analytical Chemistry and Electrochemistry Group, Departamento de Qu\u00edmica e Bioquimica, Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, 4169007 Porto, Portugal"}]},{"given":"Sabrina","family":"Rosoiu","sequence":"additional","affiliation":[{"name":"Center for Surface Science and Nanotechnology, University Polytechnica of Bucharest, Splaiul Independentei, 313, 060042 Bucharest, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3259-5729","authenticated-orcid":false,"given":"Renata","family":"Costa","sequence":"additional","affiliation":[{"name":"CIQUP\u2014Physical Analytical Chemistry and Electrochemistry Group, Departamento de Qu\u00edmica e Bioquimica, Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, 4169007 Porto, Portugal"}]},{"given":"A. Fernando","family":"Silva","sequence":"additional","affiliation":[{"name":"CIQUP\u2014Physical Analytical Chemistry and Electrochemistry Group, Departamento de Qu\u00edmica e Bioquimica, Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, 4169007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1145-2948","authenticated-orcid":false,"given":"Liana","family":"Anicai","sequence":"additional","affiliation":[{"name":"Center for Surface Science and Nanotechnology, University Polytechnica of Bucharest, Splaiul Independentei, 313, 060042 Bucharest, Romania"},{"name":"OLV Development SRL, Brasoveni 3, 023613 Bucharest, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8451-8231","authenticated-orcid":false,"given":"Marius","family":"Enachescu","sequence":"additional","affiliation":[{"name":"Center for Surface Science and Nanotechnology, University Polytechnica of Bucharest, Splaiul Independentei, 313, 060042 Bucharest, Romania"},{"name":"Academy of Romanian Scientists, Splaiul Independentei 54, 050094 Bucharest, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8392-9581","authenticated-orcid":false,"given":"Carlos M.","family":"Pereira","sequence":"additional","affiliation":[{"name":"CIQUP\u2014Physical Analytical Chemistry and Electrochemistry Group, Departamento de Qu\u00edmica e Bioquimica, Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, 4169007 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1038\/354056a0","article-title":"Helical microtubules of graphitic carbon","volume":"354","author":"Iijima","year":"1991","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3576","DOI":"10.1016\/j.polymer.2006.03.060","article-title":"Doped polyaniline\/multi-walled carbon nanotube composites: Preparation, characterization and properties","volume":"47","author":"Wu","year":"2006","journal-title":"Polymer (Guildf.)"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/j.matchemphys.2012.12.071","article-title":"Decoration of multi-walled carbon nanotubes with silver nanoparticles and investigation on its colloid stability","volume":"139","author":"Ahmadpoor","year":"2013","journal-title":"Mater. 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