Towards continuous ammonia electro-oxidation reaction on Pt catalysts with weakened adsorption of atomic nitrogen
文献类型：期刊论文
| 作者 | Wang, Yuanhui; Yang, Zehui; Yang, Jun; Xu, Jingxiang; Xie, Yaoping; Chen, Jieyu; Yang, Minghui; Wang, Jianxin; Guan, Wanbing; Muroyama, Hiroki |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2020 |
| 卷号 | 45期号:41页码:21816-21824 |
| 关键词 | OXYGEN-REDUCTION REACTION ELECTROCHEMICAL OXIDATION FUEL-CELL NITRIDE NANOPARTICLES HYDROGEN STORAGE BINARY-ALLOYS PLATINUM ELECTROCATALYSTS IR ELECTROLYSIS |
| DOI | 10.1016/j.ijhydene.2020.05.180 |
| 英文摘要 | One of the key challenges for ammonia-fed anion exchange membrane fuel cells is to the ammonia electro-oxidation reaction (AEOR) at anode, which has sluggish kinetics and generates atomic nitrogen (N-ads) poisoning the Pt catalyst. In this study, a comparative study on Pt/Ta3N5, Pt/Ta2O5, Pt/carbon black, and Pt plate are conducted in order to clarify the promoting effect of the support materials for Pt catalysts. X-ray photoelectron spectroscopy analysis and density functional theory calculations reveal that the support materials significantly affect the electron condition of the Pt, resulting in the tuned adsorption energy of N-ads on Pt surface. The electrochemical analysis demonstrates that the weakened adsorption of N-ads lowers the coverage of N-ads on Pt surface, resulting in the enhanced performance and stability of Pt catalysts for AEOR. In particular, Pt/Ta3N5 catalyst exhibits a current density of 5.92 mA cm(-2) of AEOR at -0.34 V vs. SCE, which is higher than that of Pt/Ta2O5 (2.56 mA cm(-2), -0.35 V vs. SCE) and Pt/C (4.45 mA cm(-2), -0.26 V vs. SCE). The achievements in this study demonstrate the importance of controlling the type of supports for the development of an active electrocatalyst for continuous AEOR. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20569]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Chen, JY (corresponding author), China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China. 2.Yang, MH (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 3.Xu, JX (corresponding author), Shanghai Ocean Univ, Coll Engn Sci & Technol, Shanghai 201306, Peoples R China. 4.Yang, J |
| 推荐引用方式 GB/T 7714 | Wang, Yuanhui,Yang, Zehui,Yang, Jun,et al. Towards continuous ammonia electro-oxidation reaction on Pt catalysts with weakened adsorption of atomic nitrogen[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(41):21816-21824. |
| APA | Wang, Yuanhui.,Yang, Zehui.,Yang, Jun.,Xu, Jingxiang.,Xie, Yaoping.,...&Eguchi, Koichi.(2020).Towards continuous ammonia electro-oxidation reaction on Pt catalysts with weakened adsorption of atomic nitrogen.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(41),21816-21824. |
| MLA | Wang, Yuanhui,et al."Towards continuous ammonia electro-oxidation reaction on Pt catalysts with weakened adsorption of atomic nitrogen".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.41(2020):21816-21824. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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