Enhancement of photoelectrocatalytic performance of copper cobaltate nanoflowers modified with 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin for methanol oxidation under light

Shu Li; Haoran Wang; Yuanhao Li; Hui Yang; Xixi Zhu; Qijing Bu; Qingyun Liu

doi:10.1039/d2dt04098k

Enhancement of photoelectrocatalytic performance of copper cobaltate nanoflowers modified with 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin for methanol oxidation under light

Dalton Trans. 2023 Mar 7;52(10):3016-3023. doi: 10.1039/d2dt04098k.

Authors

Shu Li¹, Haoran Wang¹, Yuanhao Li¹, Hui Yang¹, Xixi Zhu¹, Qijing Bu¹, Qingyun Liu¹

Affiliation

¹ College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China. qyliu@sdust.edu.cn.

PMID: 36779369
DOI: 10.1039/d2dt04098k

Abstract

With the continuously increasing global energy demand, there is an urgent requirement to find efficient methanol oxidation reaction (MOR) catalysts that can replace precious metals. In this work, we have elaborately integrated 5,10,15,20-tetrakis(4-carboxyphenyl) porphyrin (H₂TCPP) with copper cobaltate (CuCo₂O₄), which possesses efficient separation of photogenerated charges and increased active sites. The mass activity of H₂TCPP/CuCo₂O₄ (534.75 mA mg^-1) toward MOR is higher than that of pure CuCo₂O₄ (291.75 mA mg^-1) under light. In addition, H₂TCPP/CuCo₂O₄ can catalyze the oxidation of other alcohols, such as ethanol, ethanediol, isopropanol, and glycerol. This study demonstrates that it is feasible to enhance the MOR activity by the modification of bimetallic transition metal oxides with porphyrins.