过电位
分解水
双功能
析氧
材料科学
化学工程
纳米技术
化学
电化学
催化作用
电极
物理化学
生物化学
光催化
工程类
作者
Xueqin Ding,Xitao Li,Xinding Lv,Yan‐Zhen Zheng,Qian Wu,Haiyang Ding,Jiaojiao Wu,Ran Li,Xia Tao
标识
DOI:10.1002/ente.202000268
摘要
Metallic‐phase 1T‐MoS 2 with its good electronic conductivity and abundant active sites attracts more attention for energy conversion and storage. However, developing a high‐performance bifunctional 1T‐MoS 2 for overall water splitting still is a challenge. Herein, a composition (Fe and Mn)‐engineering approach that is capable of triggering efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) bifunctionality into coral‐like 1T‐MoS 2 nanorods for overall water splitting is reported. The results demonstrate that composition engineering induces rich crystal defects and electronic structure variation of the freestanding coral‐like 1T‐MoS 2 , leading to outstanding HER (overpotential of 34.1 mV at 10 mA cm −2 ) and OER (overpotential of 220.0 mV at 50 mA cm −2 ) activity and excellent stability in alkaline media. The facile composition‐engineering activation strategy is also feasible to endow the other transition metal dichalcogenides with dual/multiple functionality.
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