Cargando…

The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black

Proton exchange membrane fuel cells (PEMFCs) represent an outstanding clean energy alternative for next-generation power sources. The PEMFC’s performance is mainly determined by the sluggish oxygen reduction reaction (ORR) that occurs in its cathode Therefore, the use of electrocatalysts with high e...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhou, Tongyu, Zhang, Jingjing, Yang, Shenglin, Jin, Junhong, Wang, Biao, Li, Guang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267471/
https://www.ncbi.nlm.nih.gov/pubmed/35806685
http://dx.doi.org/10.3390/ma15134560
_version_ 1784743726185185280
author Zhou, Tongyu
Zhang, Jingjing
Yang, Shenglin
Jin, Junhong
Wang, Biao
Li, Guang
author_facet Zhou, Tongyu
Zhang, Jingjing
Yang, Shenglin
Jin, Junhong
Wang, Biao
Li, Guang
author_sort Zhou, Tongyu
collection PubMed
description Proton exchange membrane fuel cells (PEMFCs) represent an outstanding clean energy alternative for next-generation power sources. The PEMFC’s performance is mainly determined by the sluggish oxygen reduction reaction (ORR) that occurs in its cathode Therefore, the use of electrocatalysts with high electrocatalytic activity and stability for improving the ORR has been a vital direction for the commercialization of PEMFCs. In this article, porous carbon nanofibers (PCNFs) based on a polyacrylonitrile/polymethyl methacrylate (PAN/PMMA) precursor were fabricated by electrospinning followed by carbonization; then, the PCNFs were mixed together with carbon black (CB) in different mass ratios as a hybrid support for Pt nanoparticles. Pt nanoparticles were deposited on the hybrid support by the ethylene glycol reduction method, and the obtained series of Pt/(PCNF + CB) were used as the oxygen reduction electrocatalyst in the cathode. Their electrocatalytic properties, as well as those of Pt/C as a reference, were investigated by cyclic voltammetry scanning (CV) and linear sweep voltammetry (LSV). The results explained that Pt/(PCNF + CB) showed a higher electrochemical activity area and half-wave potential when the PCNF/CB mass ratio was 3/2 than that of commercial Pt/C. Furthermore, the half-wave potential of Pt/(PCNF + CB) only decreased by 4 mV, which was 86 mV lower than that of commercial Pt/C (90 mV) after 2000 ADT cycles, indicating that the incorporation of PCNFs to form a hybrid support could result in corrosion resistance.
format Online
Article
Text
id pubmed-9267471
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-92674712022-07-09 The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black Zhou, Tongyu Zhang, Jingjing Yang, Shenglin Jin, Junhong Wang, Biao Li, Guang Materials (Basel) Article Proton exchange membrane fuel cells (PEMFCs) represent an outstanding clean energy alternative for next-generation power sources. The PEMFC’s performance is mainly determined by the sluggish oxygen reduction reaction (ORR) that occurs in its cathode Therefore, the use of electrocatalysts with high electrocatalytic activity and stability for improving the ORR has been a vital direction for the commercialization of PEMFCs. In this article, porous carbon nanofibers (PCNFs) based on a polyacrylonitrile/polymethyl methacrylate (PAN/PMMA) precursor were fabricated by electrospinning followed by carbonization; then, the PCNFs were mixed together with carbon black (CB) in different mass ratios as a hybrid support for Pt nanoparticles. Pt nanoparticles were deposited on the hybrid support by the ethylene glycol reduction method, and the obtained series of Pt/(PCNF + CB) were used as the oxygen reduction electrocatalyst in the cathode. Their electrocatalytic properties, as well as those of Pt/C as a reference, were investigated by cyclic voltammetry scanning (CV) and linear sweep voltammetry (LSV). The results explained that Pt/(PCNF + CB) showed a higher electrochemical activity area and half-wave potential when the PCNF/CB mass ratio was 3/2 than that of commercial Pt/C. Furthermore, the half-wave potential of Pt/(PCNF + CB) only decreased by 4 mV, which was 86 mV lower than that of commercial Pt/C (90 mV) after 2000 ADT cycles, indicating that the incorporation of PCNFs to form a hybrid support could result in corrosion resistance. MDPI 2022-06-29 /pmc/articles/PMC9267471/ /pubmed/35806685 http://dx.doi.org/10.3390/ma15134560 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhou, Tongyu
Zhang, Jingjing
Yang, Shenglin
Jin, Junhong
Wang, Biao
Li, Guang
The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title_full The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title_fullStr The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title_full_unstemmed The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title_short The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black
title_sort oxygen reduction performance of pt supported on the hybrid of porous carbon nanofibers and carbon black
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267471/
https://www.ncbi.nlm.nih.gov/pubmed/35806685
http://dx.doi.org/10.3390/ma15134560
work_keys_str_mv AT zhoutongyu theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT zhangjingjing theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT yangshenglin theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT jinjunhong theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT wangbiao theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT liguang theoxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT zhoutongyu oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT zhangjingjing oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT yangshenglin oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT jinjunhong oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT wangbiao oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack
AT liguang oxygenreductionperformanceofptsupportedonthehybridofporouscarbonnanofibersandcarbonblack