尖晶石型 CuCo₂O₄ 的制备及其在光热辅助电催化析氧反应中的应用

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关键词： CuCo2O4 泡沫镍电催化光热效应析氧反应动力学中图分类号：0643.36 文献标志码：A 文章编号：1671-8755（2025）02-0007-09

Synthesis of Spinel CuCo2O4 and Its Application in Photothermal-assisted Electrocatalytic Oxygen Evolution Reaction

DUAN Feng'， ZOU Qian’，LI Junzhe'，SONG Lixian²，WEI Xijun1， SONG Yingze 2 （1. School of Materials and Chemistry， Southwest University of Science and Technology， Mianyang 621010， Sichuan， China; 2. State Key Laboratory of Environment-friendly Energy Materials， Southwest University of Science and Technology，Mianyang 621O1o， Sichuan，China）

Abstract：The development of photothermal effect-asssted oxygen evolution reaction（OER）catalysts is an effective way to enhance OER performance. A nanoflower-like CuCo2O4 （CuCc ′2 O4/NF）loaded on nickel foam（NF）was prepared and used for photothermal-assisted electrocatalytic OER，and its reaction kinetics was investigated. The results show that CuCo ′2 0 4 /NF exhibits enhanced OER performance under near-infrared light irradiation （NIR， 2W⋅cm-2 ）in 1.0 mol/L KOH，with overpotential and Tafel slope of 348.1mV and 63.7mV⋅dec-1 at 20mA⋅cm-2 ，respectively， which are 31.1mV and 12. 6 （204号 mV⋅dec-1 lower as compared with that under conventional conditions. In simulated seawater，the overpotential and Tafel slope of CuCo2O4/NF at 20mA⋅cm-2 under NIR light irradiation are reduced by 45.0mV and 11.6mV⋅dec-1 ，respectively. The photothermal effect facilitates the generation of active sites，thereby demonstrating enhanced OER performance.

Keywords ： CuCo2O4 ；Nickel foam；Electrocatalysis；Photothermal effect；Oxygen evolution reaction kinetics

氢能具有热值高、零碳排放、来源丰富等优点，可广泛用于发电、供热、交通等领域，有望替代传统化石能源[1]。（剩余11192字）