尖晶石
兴奋剂
四面体
材料科学
无机化学
化学
冶金
结晶学
光电子学
作者
Xiaohan Liu,Shujiao Yang,Sisi Li,Ting Wang,Xueqing Gao,Yu Chen,Wei Zhang
标识
DOI:10.1002/chem.202403720
摘要
Spinel oxides have attracted much attention in electrocatalytic water oxidation. Specially, the Mn-based spinel structures merits fundamental investigation, as Mn is involved in water oxidation in natural photosynthesis. Herein, Al-doped Mn3O4 spinel electrocatalyst was prepared for water oxidation. The Al cations selectively occupy the tetrahedral sites of Mn3O4 spinel structure, leaving Mn(III) at the catalytically critical octahedral sites. The substitution of Al3+ regulated the electronic structure of Mn3O4, induced lattice distortion and produced higher concentration of oxygen vacancy to promote the water oxidation performance.
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