CoP Nanoparticles Combined with WSe2 Nanosheets: An Efficient Hybrid Catalyst for Electrocatalytic Hydrogen Evolution Reaction
CoP Nanoparticles Combined with WSe2 Nanosheets: An Efficient Hybrid Catalyst for Electrocatalytic Hydrogen Evolution Reaction
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CoP纳米颗粒与WSe2纳米片相结合：一种用于电催化析氢反应的高效混合催化剂
DOI：
10.1021/acs.iecr.7b03537
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发表时间：
2018-01-17
影响因子：
4.2
通讯作者：
Fan, Xiaobin
中科院分区：
文献类型：
--
作者：
Qian, Jiahui;Li, Zhen;Fan, Xiaobin
氢（H2）是一种清洁高效的能源载体，开发用于析氢反应（HER）的新型非铂电催化剂已成为人们关注的焦点。本研究成功制备了CoP/WSe2纳米片杂化物，并对其作为新型非贵金属HER催化剂的潜力进行了评价。我们发现所有杂化物的催化活性都高于纯CoP和WSe2纳米片，表明它们在HER中的协同催化作用。特别是，在0.5 M H2SO4中，优化后的cop与wse2质量比为1:1的杂化材料在300 mV vs RHE下电流密度最高，为102.9 mA/cm2，具有优异的长期稳定性。
Hydrogen (H2) is a clean and efficient energy carrier, and great efforts have been focused on developing new non-Pt electrocatalysts for the hydrogen evolution reaction (HER). In this study, CoP/WSe2 nanosheets hybrids were successfully prepared, and their potential as a new non-noble HER catalyst was evaluated. We found that all the hybrids showed higher catalytic activity than pure CoP and WSe2 nanosheets, suggesting their synergistic catalytic effect in the HER. Particularly, in 0.5 M H2SO4, the hybrid with an optimized CoP-to-WSe2 mass ratio of 1:1 has the highest current density of 102.9 mA/cm2 at 300 mV vs RHE and excellent long-term stability.