分解水
材料科学
星团(航天器)
纳米技术
金属
化学物理
结晶学
催化作用
化学
光催化
计算机科学
冶金
生物化学
程序设计语言
作者
Fu-Chun Pan,Jingchun Jia,Feng Gong,Yonghui Liu,Shude Liu,Junfu Li,Dunmin Lin,Yuzheng Guo,Yusuke Yamauchi,Yujing Huo
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-02-12
标识
DOI:10.1021/acsnano.3c09159
摘要
The development of cost-effective electrocatalysts with an optimal surface affinity for intermediates is essential for sustainable hydrogen fuel production, but this remains insufficient. Here we synthesize Ni2P/MoS2-CoMo2S4@C heterometallic electrocatalysts based on the high-nuclearity cluster {Co24(TC4A)6(MoO4)8Cl6}, in which Ni2P nanoparticles were anchored to the surface of the MoS2-CoMo2S4@C nanosheets via strong interfacial interactions. Theoretical calculations revealed that the introduction of Ni2P phases induces significant disturbances in the surface electronic configuration of Ni2P/MoS2-CoMo2S4@C, resulting in more relaxed d–d orbital electron transfers between the metal atoms. Moreover, continuous electron transport was established by the formation of multiple heterojunction interfaces. The optimized Ni2P/MoS2-CoMo2S4@C electrocatalyst exhibited ultralow overpotentials of 198 and 73 mV for oxygen and hydrogen evolution reactions, respectively, in alkaline media, at 10 mA cm–2. The alkali electrolyzer constructed using Ni2P/MoS2-CoMo2S4@C required a cell voltage of only 1.45 V (10 mA cm–2) to drive overall water splitting with excellent long-term stability.
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