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Self-assembled Pt–CoFe layered double hydroxides for efficient alkaline water/seawater splitting by spontaneous redox synthesis | |
2022-06-01 | |
发表期刊 | JOURNAL OF POWER SOURCES (IF:8.1[JCR-2023],8.3[5-Year]) |
ISSN | 0378-7753 |
卷号 | 532 |
DOI | 10.1016/j.jpowsour.2022.231353 |
摘要 | The development of high-performance, low-cost and large-scale water/seawater splitting bifunctional electrocatalysts still faces huge challenges. Here, we deliver a novel and simple spontaneous redox synthesis strategy to fabricate a self-supported Pt–CoFe() layered double hydroxide (LDH) electrocatalyst. The three-dimensional porous structure of the catalyst and the synergistic effect of Pt clusters and CoFe hydroxides jointly contribute to its excellent catalytic activity and enhanced chemical stability. Specifically, in 1 M KOH, the overpotentials for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) of Pt–CoFe() LDH at 10 mA cm−2 are 214 mV and 15 mV, respectively. The catalysts are stable for at least 40 h at high current densities of 100 and 500 mA cm−2. Compared with previously reported electrocatalysts, Pt–CoFe(II) LDHs || Pt–CoFe(II) LDHs overall water (seawater) electrolyzers only require 1.634 (1.651) and 1.798 (1.858) V to reach 100 and 500 mA cm−2 in 1 M KOH water (seawater) electrolyte, confirming the superior catalytic activity of the self-supported Pt–CoFe() layered double hydroxide electrocatalysts. This study provides a novel and simple synthesis strategy to prepare advanced water/seawater splitting electrocatalysts, which is highly relevant for commercial applications. |
关键词 | Alkalinity Binary alloys Catalyst activity Chemical stability Cobalt alloys Electrocatalysts Electrolysis Electrolytes Iron compounds Platinum compounds Potassium hydroxide Seawater Bifunctional electrocatalysts Layered-double hydroxides Overall water/seawater splitting Redox synthesis Self-supported bifunctional electrocatalyst Simple++ Splittings Spontaneous redox synthesis Supported Pt Synthesis strategy |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | Shanghai Key Research Program[20ZR1436700] |
WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
WOS类目 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000793522400004 |
出版者 | Elsevier B.V. |
EI入藏号 | 20221511940252 |
EI主题词 | Iron alloys |
EI分类号 | 471.4 Seawater, Tides and Waves ; 545.2 Iron Alloys ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 702 Electric Batteries and Fuel Cells ; 801 Chemistry ; 801.1 Chemistry, General ; 801.4.1 Electrochemistry ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds |
原始文献类型 | Journal article (JA) |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/171492 |
专题 | 物质科学与技术学院_硕士生 物质科学与技术学院_PI研究组_杨楠组 物质科学与技术学院_PI研究组_于奕组 物质科学与技术学院_博士生 |
通讯作者 | Yang, Nan |
作者单位 | School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Wu, Jin,Nie, Zhiwei,Xie, Renjie,et al. Self-assembled Pt–CoFe layered double hydroxides for efficient alkaline water/seawater splitting by spontaneous redox synthesis[J]. JOURNAL OF POWER SOURCES,2022,532. |
APA | Wu, Jin,Nie, Zhiwei,Xie, Renjie,Hu, Xiangchen,Yu, Yi,&Yang, Nan.(2022).Self-assembled Pt–CoFe layered double hydroxides for efficient alkaline water/seawater splitting by spontaneous redox synthesis.JOURNAL OF POWER SOURCES,532. |
MLA | Wu, Jin,et al."Self-assembled Pt–CoFe layered double hydroxides for efficient alkaline water/seawater splitting by spontaneous redox synthesis".JOURNAL OF POWER SOURCES 532(2022). |
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