Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell

Nickel is an ideal non-noble metal anode catalyst for direct urea fuel cell (DUFC) due to its high activity. However, there exists a large overpotential toward urea electrooxidation. Herein, NiCo/C bimetallic nanoparticles were prepared with various Co contents (0, 10, 20, 30 and 40 wt%) to improve...

Descripción completa

Detalles Bibliográficos
Autores principales: Xu, Wei, Zhang, Huimin, Li, Gang, Wu, Zucheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148665/
https://www.ncbi.nlm.nih.gov/pubmed/25168632
http://dx.doi.org/10.1038/srep05863
_version_ 1782332662653911040
author Xu, Wei
Zhang, Huimin
Li, Gang
Wu, Zucheng
author_facet Xu, Wei
Zhang, Huimin
Li, Gang
Wu, Zucheng
author_sort Xu, Wei
collection PubMed
description Nickel is an ideal non-noble metal anode catalyst for direct urea fuel cell (DUFC) due to its high activity. However, there exists a large overpotential toward urea electrooxidation. Herein, NiCo/C bimetallic nanoparticles were prepared with various Co contents (0, 10, 20, 30 and 40 wt%) to improve the activity. The best Co ratio was 10% in the aspect of cell performance, with a maximum power density of 1.57 mW cm(−2) when 0.33 M urea was used as fuel, O(2) as oxidant at 60°C. The effects of temperature and urea concentration on DUFC performance were investigated. Besides, direct urine fuel cell reaches a maximum power density of 0.19 mW cm(−2) with an open circuit voltage of 0.38 V at 60°C.
format Online
Article
Text
id pubmed-4148665
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-41486652014-09-03 Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell Xu, Wei Zhang, Huimin Li, Gang Wu, Zucheng Sci Rep Article Nickel is an ideal non-noble metal anode catalyst for direct urea fuel cell (DUFC) due to its high activity. However, there exists a large overpotential toward urea electrooxidation. Herein, NiCo/C bimetallic nanoparticles were prepared with various Co contents (0, 10, 20, 30 and 40 wt%) to improve the activity. The best Co ratio was 10% in the aspect of cell performance, with a maximum power density of 1.57 mW cm(−2) when 0.33 M urea was used as fuel, O(2) as oxidant at 60°C. The effects of temperature and urea concentration on DUFC performance were investigated. Besides, direct urine fuel cell reaches a maximum power density of 0.19 mW cm(−2) with an open circuit voltage of 0.38 V at 60°C. Nature Publishing Group 2014-08-29 /pmc/articles/PMC4148665/ /pubmed/25168632 http://dx.doi.org/10.1038/srep05863 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Xu, Wei
Zhang, Huimin
Li, Gang
Wu, Zucheng
Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title_full Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title_fullStr Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title_full_unstemmed Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title_short Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
title_sort nickel-cobalt bimetallic anode catalysts for direct urea fuel cell
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148665/
https://www.ncbi.nlm.nih.gov/pubmed/25168632
http://dx.doi.org/10.1038/srep05863
work_keys_str_mv AT xuwei nickelcobaltbimetallicanodecatalystsfordirectureafuelcell
AT zhanghuimin nickelcobaltbimetallicanodecatalystsfordirectureafuelcell
AT ligang nickelcobaltbimetallicanodecatalystsfordirectureafuelcell
AT wuzucheng nickelcobaltbimetallicanodecatalystsfordirectureafuelcell

Ejemplares similares