Sheng Sui
Pt nanowire growth induced by Pt nanoparticles in application of the cathodes for Polymer Electrolyte Membrane Fuel Cells (PEMFCs)
Sui, Sheng; Wei, Zhaoxu; Su, Kaihua; He, An; Wang, Xiaoying; Su, Yuehong; Hou, Xianghui; Raffet, Saffa; Du, Shangfeng
Authors
Zhaoxu Wei
Kaihua Su
An He
Xiaoying Wang
Professor YUEHONG SU YUEHONG.SU@NOTTINGHAM.AC.UK
PROFESSOR OF THERMAL SCIENCE AND BUILDING TECHNOLOGY
Xianghui Hou
Saffa Raffet
Shangfeng Du
Abstract
Improving cathode performance at a lower Pt loading is critical in commercial PEMFC applications. A novel Pt nanowire (Pt-NW) cathode was developed by in-situ growth of Pt nanowires in carbon matrix consisting Pt nanoparticles (Pt-NPs). Characterization of TEM and XRD shows that the pre-existing Pt-NPs from Pt/C affect Pt-NW morphology and crystallinity and Pt profile crossing the matrix thickness. The cathode with Pt-NP loading of 0.005 mgPt-NP cm−2 and total cathode Pt loading of 0.205 mgPt cm−2 has the specific current density of 89.56 A gPt−1 at 0.9 V, which is about 110% higher than that of 42.58 A gPt−1 of the commercial gas diffusion layer (GDE) with Pt loading of 0.40 mg cm−2. When cell voltage is below 0.48 V, the Pt-NW cathode has better performance than the commercial GDE. It is believed that the excellent performance of the Pt-NW cathode is attributed to Pt-NP induction, therefore producing unique Pt-NW structure and efficient Pt utilization. A Pt-NW growth mechanism was proposed that Pt precursor diffuses into the matrix consisting of pre-existent Pt-NPs by concentration driving, and Pt-NPs provide priority sites for platinum depositing at early stage and facilitate Pt-NW growth.
Citation
Sui, S., Wei, Z., Su, K., He, A., Wang, X., Su, Y., Hou, X., Raffet, S., & Du, S. (2018). Pt nanowire growth induced by Pt nanoparticles in application of the cathodes for Polymer Electrolyte Membrane Fuel Cells (PEMFCs). International Journal of Hydrogen Energy, 43(43), 20041-20049. https://doi.org/10.1016/j.ijhydene.2018.09.009
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 3, 2018 |
Online Publication Date | Sep 28, 2018 |
Publication Date | Oct 25, 2018 |
Deposit Date | Oct 29, 2018 |
Publicly Available Date | Sep 29, 2019 |
Journal | International Journal of Hydrogen Energy |
Print ISSN | 0360-3199 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 43 |
Issue | 43 |
Pages | 20041-20049 |
DOI | https://doi.org/10.1016/j.ijhydene.2018.09.009 |
Keywords | Fuel Technology; Renewable Energy, Sustainability and the Environment; Energy Engineering and Power Technology; Condensed Matter Physics |
Public URL | https://nottingham-repository.worktribe.com/output/1203326 |
Publisher URL | https://www.sciencedirect.com/science/article/pii/S0360319918328234 |
Additional Information | This article is maintained by: Elsevier; Article Title: Pt nanowire growth induced by Pt nanoparticles in application of the cathodes for Polymer Electrolyte Membrane Fuel Cells (PEMFCs); Journal Title: International Journal of Hydrogen Energy; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ijhydene.2018.09.009; Content Type: article; Copyright: © 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
Contract Date | Oct 29, 2018 |
Files
HE-D-18-02260R1-1
(2.4 Mb)
PDF
You might also like
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search