Mo‐Doped α‐MnO<sub>2</sub> for Enhanced Electrocatalytic Water Oxidation
Manganese is a key metal involved in the catalysis of natural photosynthesis. Thus, the investigation of Mn-based electrocatalysts for water oxidation is of high importance. This work reports the doping of Mo into α-MnO<sub>2</sub> nanorods to improve the water oxidation performance. The doping of Mo can transform the microstructure of α-MnO<sub>2</sub> from nanorods into nanosphere superstructures. As a dopant, Mo expands the α-MnO<sub>2</sub> lattice to result in a decrease in the average oxidation state of Mn and the generation of oxygen vacancies, which are beneficial to water oxidation catalysis. Under optimized doping, the overpotential of 2.34 wt.% Mo/α-MnO<sub>2</sub> is reduced by 80 mV (at 10 mA/cm<sup>2</sup>) compared with pure α-MnO<sub>2</sub>.
Authors
- Rui Cao (ORCID: https://orcid.org/0000-0002-1821-9583)
- Shujiao Yang (ORCID: https://orcid.org/0000-0003-2213-6809)
- Ying Chen (ORCID: https://orcid.org/0000-0002-8433-3341)
- Ting Wang (ORCID: https://orcid.org/0000-0003-1260-121X)
- Wei Zhang (ORCID: https://orcid.org/0000-0002-6063-9637)
- Sisi Li (ORCID: https://orcid.org/0000-0002-1443-127X)
- Xiaohan Liu (ORCID: https://orcid.org/0009-0003-6783-7163)
Institutions
- Shaanxi Normal University (CN)
Publication Details
- Journal
- ChemSusChem
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1002/cssc.202401553
- Citations
- 9
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.92