Synthesis of lawn-like NiS2 nanowires on carbon fiber paper as bifunctional electrode for water splitting |
| |
| Authors: | Yajie Guo Dong Guo Feng Ye Ke Wang Zhongqi Shi |
| |
| Affiliation: | 1. Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang''an University, Xi''an 710064, China;2. Institute for Materials and Processes, School of Engineering, The University of Edinburgh, Edinburgh EH9 3FB, UK;3. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi''an Jiaotong University, Xi''an Shaanxi Province 710049, China |
| |
| Abstract: | a low-cost electrode with lawn-like NiS2 nanowire arrays on flexible carbon fiber paper was synthesized, for the first time, via sulfurization of Ni2(CO3)(OH)2 precursor. And the performance of this electrode as a bifunctional electrocatalyst toward both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) was evaluated. It shows that NiS2 NWs/CFP requires small overpotentials of 165 mV for HER and 246 mV for OER, respectively, to deliver the current density of 10 mA cm?2 in 1.0 M KOH. The corresponding symmetric two-electrode alkaline water electrolyzer only needs a cell voltage of 1.59 V to afford 10 mA cm?2 water-splitting current density. |
| |
| Keywords: | Nickel sulfide Nanowires Hydrogen evolution reaction Overall water splitting Bifunctional electrode |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
