期刊
CHEMICAL ENGINEERING JOURNAL
卷 402, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.125069
关键词
Pyrrhotite; Nanoplate; Electrocatalysts; Water Splitting
资金
- National Natural Science Foundation of China (NSFC) [21701096, 21676150]
- Natural Science Foundation of Shandong Province [ZR2016BQ03]
- Qingdao Applied Basic Research Project [19-6-2-17-cg]
- State Key Laboratory of Fine Chemicals [KF 1601]
- Shandong Ecochemical Engineering Collaborative Innovation Center [XTCXQN05]
- Young Taishan Scholarship Project of Shandong Province [tsqn201909115]
The development of high performance bi-functional electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) with low cost materials has remained a great challenge in electrochemical water splitting. Herein, we design and develop novel Co-doped Fe0.95S1.05 nanoplates, which were synthesized using Fe(CO)(5) as precursor for the first time via a one pot reaction. Fe0.9Co0.05S1.05 lead to enhanced OER activity with a low overpotential of similar to 0.27 V at 20 mA/cm(2), small Tafel slope of similar to 46 mV/decade, as well as improved HER activity with a Tafel slope of 114 mV/decade and a current density of 20 mA/cm(2) at an overpotential of similar to 0.385 V. This study produced the most active pyrrhotite FeS based catalyst for electrochemical water splitting, which suggests a scalable, low cost, simple, and highly efficient catalyst for water splitting.
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