Nandy, Swarnava; Wu, Qianbao; Tilley, S David; Cui, Chunhua (2021). Improved water oxidation with metal oxide catalysts via a regenerable and redox-inactive ZnOxHy overlayer. Chemical Communications, 57(79):10230-10233.
We report a regenerable and redox-inactive ZnOxHy layer that was in situ deposited onto metal oxides MOz (M = Co, Fe, and Ni) in alkaline media containing [Zn(OH)4]2− species during water oxidation. An interface dipole was developed at the MOz/Zn interface, resulting in a decrease of the OER overpotential. Exemplified by the CoOz/ZnOxHy bilayer structure, it presented a 155 mV lower overpotential to deliver 10 mA cm−2 and long-term stability relative to the unmodified CoOz film.
We report a regenerable and redox-inactive ZnOxHy layer that was in situ deposited onto metal oxides MOz (M = Co, Fe, and Ni) in alkaline media containing [Zn(OH)4]2− species during water oxidation. An interface dipole was developed at the MOz/Zn interface, resulting in a decrease of the OER overpotential. Exemplified by the CoOz/ZnOxHy bilayer structure, it presented a 155 mV lower overpotential to deliver 10 mA cm−2 and long-term stability relative to the unmodified CoOz film.
| Item Type: | Journal Article, refereed, original work |
|---|---|
| Communities & Collections: | 07 Faculty of Science > Department of Chemistry
08 Research Priority Programs > Solar Light to Chemical Energy Conversion |
| Dewey Decimal Classification: | 540 Chemistry |
| Scopus Subject Areas: | Physical Sciences > Catalysis
Physical Sciences > Electronic, Optical and Magnetic Materials Physical Sciences > Ceramics and Composites Physical Sciences > General Chemistry Physical Sciences > Surfaces, Coatings and Films Physical Sciences > Metals and Alloys Physical Sciences > Materials Chemistry |
| Uncontrolled Keywords: | Materials Chemistry, Metals and Alloys, Surfaces, Coatings and Films, General Chemistry, Ceramics and Composites, Electronic, Optical and Magnetic Materials, Catalysis |
| Language: | English |
| Date: | 1 January 2021 |
| Deposited On: | 10 Feb 2022 07:05 |
| Last Modified: | 07 Sep 2022 00:00 |
| Publisher: | Royal Society of Chemistry |
| ISSN: | 1359-7345 |
| OA Status: | Green |
| Publisher DOI: | https://doi.org/10.1039/d1cc03406e |
Nandy, Swarnava