CuCo-MOF/MoS2 as a High-Performance Electrocatalyst for Oxygen Evolution Reaction

IF 2.7 4区化学 Q3 CHEMISTRY, PHYSICAL Electrocatalysis Pub Date : 2022-12-15 DOI:10.1007/s12678-022-00797-5

Qi Li, Xiabing Hu, Lidong Zhang, Shuyu Li, Jiayan Chen, Baoying Zhang, Zhiyuan Zheng, Hongyu He, Jie Zhang, Shiping Luo, Aijuan Xie

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引用次数: 2

Abstract

Metal–organic frame materials (MOFs) create ordered spatial structures through organic bridges and metal ion centers. This microstructure can effectively disperse the active centers. In this work, CuCo-MOF was firstly prepared by hydrothermal method and then physically mixed with MoS₂. The prepared materials were applied to study the catalytic performance for oxygen evolution reaction (OER). The results show that the overpotential and Tafel slope of CuCo-MOF/MoS₂ are 336 mV and 75 mV dec⁻¹. The addition of MoS₂ can effectively reduce the stacking of MOFs and increase the effective contact area with the reactants and promote charge/mass transport as well as enhance the catalytic activity. In addition, MoS₂ has strong viscosity, and when it is mixed with MOF, the stability of the composite can be improved. The good OER performance of CuCo-MOF/MoS₂ provides a reference for the exploration of a novel OER catalyst.

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CuCo-MOF/MoS2作为析氧反应的高性能电催化剂

金属有机框架材料(MOFs)通过有机桥梁和金属离子中心创造有序的空间结构。这种微观结构能有效分散活性中心。本文首先采用水热法制备CuCo-MOF，然后与MoS2进行物理混合。将所制备的材料应用于析氧反应(OER)的催化性能研究。结果表明:CuCo-MOF/MoS2的过电位和Tafel斜率分别为336 mV和75 mV dec−1;添加MoS2可以有效减少mof的堆积，增加与反应物的有效接触面积，促进电荷/质量输运，提高催化活性。此外，MoS2具有较强的粘度，与MOF混合可提高复合材料的稳定性。CuCo-MOF/MoS2良好的OER性能为开发新型OER催化剂提供了参考。

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来源期刊

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

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