Interface engineering of mesoporous triphasic cobalt-copper phosphides as active electrocatalysts for overall water splitting
文献类型：期刊论文
| 作者 | Saad, Ali; Cheng, Zhixing; Shen, Hangjia; Guo, Haichuan; Attfield, John Paul; Thomas, Tiju; Yang, Minghui |
| 刊名 | SUSTAINABLE ENERGY & FUELS
 |
| 出版日期 | 2021 |
| 卷号 | 5期号:5页码:1366-1373 |
| 英文摘要 | Efficient electrocatalysts for water splitting are essential for viable generation of highly purified hydrogen. Hence there is a need to develop robust catalysts to eliminate barriers associated with sluggish kinetics associated with both anodic oxygen and cathodic hydrogen evolution reactions. Herein, we report a two-step nanocasting-solid phase phosphorization approach to generate ordered mesoporous triphasic phosphides CoP@Cu2P-Cu3P. We show that it is a highly efficient bifunctional electrocatalyst useful for overall water splitting. The mesoporous triphasic CoP@Cu2P-Cu3P only requires a low overpotential of 255 mV and 188 mV to achieve 10 mA cm(-2) for oxygen and hydrogen evolution reactions, respectively. The combination of mesoporous pores (similar to 5.6 nm) with very thin walls (similar to 3.7 nm) and conductive networks in triphasic CoP@Cu2P-Cu3P enable rapid rate of electron transfer and mass transfer. In addition, when CoP@Cu2P-Cu3P is used to fabricate symmetric electrodes, the high surface area mesoporous structure and synergetic effects between phases together contribute to a low cell voltage of 1.54 V to drive a current density 10 mA cm(-2). This performance is superior to noble-metal-based Pt/C-IrO2/C. This work provides a new approach for the facile design and application of multiphase phosphides as highly active bifunctional and stable electrocatalysts for water-alkali electrolyzers. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22112]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Yang, MH (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 2.Attfield, JP (corresponding author), Univ Edinburgh, Ctr Sci Extreme Condit, Kings Bldg,West Mains Rd, Edinburgh EH9 3JJ, Midlothian, Scotland. 3.Thomas, T (corresponding author), Indian Inst Technol Madras, Dept Met & Mat Engn Microstruct, Chennai 600036, Tamil Nadu, India. 4.Attfield, JP (corresponding author), Univ Edinburgh, Sch Chem, Kings Bldg,West Mains Rd, Edinburgh EH9 3JJ, Midlothian, Scotland. 5.Yang, MH (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Saad, Ali,Cheng, Zhixing,Shen, Hangjia,et al. Interface engineering of mesoporous triphasic cobalt-copper phosphides as active electrocatalysts for overall water splitting[J]. SUSTAINABLE ENERGY & FUELS,2021,5(5):1366-1373. |
| APA | Saad, Ali.,Cheng, Zhixing.,Shen, Hangjia.,Guo, Haichuan.,Attfield, John Paul.,...&Yang, Minghui.(2021).Interface engineering of mesoporous triphasic cobalt-copper phosphides as active electrocatalysts for overall water splitting.SUSTAINABLE ENERGY & FUELS,5(5),1366-1373. |
| MLA | Saad, Ali,et al."Interface engineering of mesoporous triphasic cobalt-copper phosphides as active electrocatalysts for overall water splitting".SUSTAINABLE ENERGY & FUELS 5.5(2021):1366-1373. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。