标题
作者
作者:Xin, YM (Xin, Yanmei)[1 ]; Kan, X (Kan, Xiang)[2 ]; Gan, LY (Gan, Li-Yong)[2,3 ]; Zhang, ZH (Zhang, Zhonghai)[1 ]
期刊信息
摘要
Solar-driven overall water splitting is highly desirable for hydrogen generation with sustainable energy sources, which need efficient, earth-abundant, robust, and bifunctional electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Herein, we propose a heterogeneous bimetallic phosphide/sulfide nanocomposite electrocatalyst of NiFeSP on nickel foam (NiFeSP/NF), which shows superior electrocatalytic activity of low overpotentials of 91 mV at -10 mA cm(-2) for HER and of 240 mV at 50 mA cm(-2) for OER in 1 M KOH solution. In addition, the NiFeSP/NF presents excellent overall water splitting performance with a cell voltage as low as 1.58 V at a current density of 10 mA cm(-2). Combining with a photovoltaic device of a Si solar cell or integrating into photoelectrochemical (PEC) systems, the bifunctional NiFeSP/NF electrocatalyst implements unassisted solar-driven water splitting with a solar-to-hydrogen conversion efficiency of similar to 9.2% and significantly enhanced PEC performance, respectively.
关键词
作者关键词:electrochemistry; phosphosulfide; nanosheet; solar energy; water splitting
作者信息
通讯作者地址:Zhang, ZH (通讯作者)
 | East China Normal Univ, Sch Chem & Mol Engn, 500 Dongchuan Rd, Shanghai 200241, Peoples R China. |
| Southwest Jiaotong Univ, Superconduct & New Energy R&D Ctr, Chengdu 610031, Sichuan, Peoples R China. |
| South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China. |
地址:
出版商
类别分类
研究方向:Chemistry; Science & Technology - Other Topics; Materials Science
Web of Science 类别:Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary