纳米网
材料科学
分解水
析氧
双功能
电催化剂
纳米材料基催化剂
化学工程
电化学
过电位
兴奋剂
纳米技术
催化作用
化学
电极
光电子学
石墨烯
纳米颗粒
物理化学
有机化学
工程类
光催化
作者
Guijuan Wei,Zhuhan Xu,Xixia Zhao,Shoujuan Wang,Fangong Kong,Changhua An
标识
DOI:10.1016/j.jallcom.2021.162328
摘要
CoSe2 has been as one of promising electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) due to its earth-abundant resource, and tunable electronic structure. However, enhancing electrocatalytic activity of CoSe2 to meet the large-scale practical applications is desirable. Herein, we report a facile plasma nitridation strategy to generate N-doped CoSe2 nanomesh arrays on commercial carbon paper (N-CoSe2@CP). The obtained N-CoSe2@CP electrodes combined advantages of abundant electrochemical active sites and beneficial electronic structures, thus exhibiting a low overpotential of 106 mV and 237 mV to drive 10 mA cm−2 towards HER and OER in alkaline medium, respectively. Moreover, it can be employed as bifunctional electrocatalyst for overall water splitting, where a small potential of 1.57 V was required to reach 10 mA cm−2, and long-term stability was also realized. This work develops a promising strategy to explore highly-efficient nanocatalysts towards new energy conversion.
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