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Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell

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dc.contributor.author Jin, S
dc.contributor.author Yang, SY
dc.contributor.author Lee, JM
dc.contributor.author Kang, MS
dc.contributor.author Choi, SM
dc.contributor.author Ahn, W
dc.contributor.author Fuku, Xolile G
dc.contributor.author Modibedi, Mmalewane R
dc.contributor.author Han, B
dc.contributor.author Seo, MH
dc.date.accessioned 2021-10-04T09:05:28Z
dc.date.available 2021-10-04T09:05:28Z
dc.date.issued 2021-06
dc.identifier.citation Jin, S., Yang, S., Lee, J., Kang, M., Choi, S., Ahn, W., Fuku, X.G. & Modibedi, M.R. et al. 2021. Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell. <i>ACS Applied Materials & Interfaces, 13(23).</i> http://hdl.handle.net/10204/12118 en_ZA
dc.identifier.issn 1944-8244
dc.identifier.issn 1944-8252
dc.identifier.uri https://doi.org/10.1021/acsami.1c04132
dc.identifier.uri http://hdl.handle.net/10204/12118
dc.description.abstract Pt-supported carbon material-based electrocatalysts are formidably suffering from carbon corrosion when H2O and O2 molecules are present at high voltages in polymer electrolyte membrane fuel cells (PEMFCs). In this study, we discovered that the edge site of a fluorine-doped graphene nanoribbon (F-GNR) was slightly adsorbed with H2O and was thermodynamically unfavorable with O atoms after defining the thermodynamically stable structure of the F-GNR from DFT calculations. Based on computational predictions, the physicochemical and electrochemical properties of F-GNRs with/without Pt nanoparticles derived from a modified Hummer’s method and the polyol process were investigated as support materials for electrocatalysts and additives in the cathode of a PEMFC, respectively. The Pt/F-GNR showed the lowest degradation rate in carbon corrosion and was effective in the cathode as additives, resulting from the enhanced carbon corrosion durability owing to the improved structural stability and water management. Notably, the F-GNR with highly stable carbon corrosion contributed to achieving a more durable PEMFC for long-term operation. en_US
dc.format Abstract en_US
dc.language.iso en en_US
dc.relation.uri https://pubs.acs.org/doi/10.1021/acsami.1c04132 en_US
dc.source ACS Applied Materials & Interfaces, 13(23) en_US
dc.subject Fluorine doping en_US
dc.subject Carbon corrosion en_US
dc.subject Graphene nanoribbon en_US
dc.subject DFT calculation en_US
dc.subject Oxygen reduction en_US
dc.subject MEA en_US
dc.subject Membrane electrode assembly en_US
dc.subject Polymer electrolyte membrane fuel cells en_US
dc.subject PEMFCs en_US
dc.title Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell en_US
dc.type Article en_US
dc.description.pages 26936-26947 en_US
dc.description.note Copyright © 2021 American Chemical Society. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website: https://pubs.acs.org/doi/10.1021/acsami.1c04132 en_US
dc.description.cluster Smart Places en_US
dc.description.impactarea Electro Chemicals Energy Tech en_US
dc.identifier.apacitation Jin, S., Yang, S., Lee, J., Kang, M., Choi, S., Ahn, W., ... Seo, M. (2021). Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell. <i>ACS Applied Materials & Interfaces, 13(23)</i>, http://hdl.handle.net/10204/12118 en_ZA
dc.identifier.chicagocitation Jin, S, SY Yang, JM Lee, MS Kang, SM Choi, W Ahn, Xolile G Fuku, Mmalewane R Modibedi, B Han, and MH Seo "Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell." <i>ACS Applied Materials & Interfaces, 13(23)</i> (2021) http://hdl.handle.net/10204/12118 en_ZA
dc.identifier.vancouvercitation Jin S, Yang S, Lee J, Kang M, Choi S, Ahn W, et al. Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell. ACS Applied Materials & Interfaces, 13(23). 2021; http://hdl.handle.net/10204/12118. en_ZA
dc.identifier.ris TY - Article AU - Jin, S AU - Yang, SY AU - Lee, JM AU - Kang, MS AU - Choi, SM AU - Ahn, W AU - Fuku, Xolile G AU - Modibedi, Mmalewane R AU - Han, B AU - Seo, MH AB - Pt-supported carbon material-based electrocatalysts are formidably suffering from carbon corrosion when H2O and O2 molecules are present at high voltages in polymer electrolyte membrane fuel cells (PEMFCs). In this study, we discovered that the edge site of a fluorine-doped graphene nanoribbon (F-GNR) was slightly adsorbed with H2O and was thermodynamically unfavorable with O atoms after defining the thermodynamically stable structure of the F-GNR from DFT calculations. Based on computational predictions, the physicochemical and electrochemical properties of F-GNRs with/without Pt nanoparticles derived from a modified Hummer’s method and the polyol process were investigated as support materials for electrocatalysts and additives in the cathode of a PEMFC, respectively. The Pt/F-GNR showed the lowest degradation rate in carbon corrosion and was effective in the cathode as additives, resulting from the enhanced carbon corrosion durability owing to the improved structural stability and water management. Notably, the F-GNR with highly stable carbon corrosion contributed to achieving a more durable PEMFC for long-term operation. DA - 2021-06 DB - ResearchSpace DP - CSIR J1 - ACS Applied Materials & Interfaces, 13(23) KW - Fluorine doping KW - Carbon corrosion KW - Graphene nanoribbon KW - DFT calculation KW - Oxygen reduction KW - MEA KW - Membrane electrode assembly KW - Polymer electrolyte membrane fuel cells KW - PEMFCs LK - https://researchspace.csir.co.za PY - 2021 SM - 1944-8244 SM - 1944-8252 T1 - Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell TI - Fluorine-decorated graphene nanoribbons for an anticorrosive polymer electrolyte membrane fuel cell UR - http://hdl.handle.net/10204/12118 ER - en_ZA
dc.identifier.worklist 24978 en_US


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