The Doping of Al<sup>3+</sup> at the Tetrahedral Site of Spinel Mn<sub>3</sub>O<sub>4</sub> for Electrocatalytic Water Oxidation
Spinel oxides have attracted much attention for 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 Mn<sub>3</sub>O<sub>4</sub> spinel electrocatalyst was prepared for water oxidation. The Al cations selectively occupy the tetrahedral sites of Mn<sub>3</sub>O<sub>4</sub> spinel structure, leaving Mn(III) at the catalytically critical octahedral sites. The substitution of Al<sup>3+</sup> regulated the electronic structure of Mn<sub>3</sub>O<sub>4</sub>, induced lattice distortion and produced higher concentration of oxygen vacancy to promote the water oxidation performance.
Authors
- Xueqing Gao (ORCID: https://orcid.org/0000-0001-9247-7516)
- Shujiao Yang (ORCID: https://orcid.org/0000-0003-2213-6809)
- Yu Chen (ORCID: https://orcid.org/0000-0001-9545-6761)
- Ting Wang (ORCID: https://orcid.org/0000-0003-1260-121X)
- Wei Zhang (ORCID: https://orcid.org/0000-0003-2152-0892)
- Sisi Li (ORCID: https://orcid.org/0000-0002-1443-127X)
- Xiaohan Liu (ORCID: https://orcid.org/0009-0003-6783-7163)
Institutions
- Hebei University of Science and Technology (CN)
- Hebei Chemical and Pharmaceutical College (CN)
- Shaanxi Normal University (CN)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2024-12-31
- DOI
- https://doi.org/10.1002/chem.202403720
- Citations
- 4
- Primary Topic
- Water Quality Monitoring and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 1.17
Funders
- National Natural Science Foundation of China
- Shaanxi Normal University