Improved water oxidation with metal oxide catalysts via a regenerable and redox-inactive ZnOxHy overlayer. Issue 79 (16th September 2021)

• Record Type: Journal Article
• Authors: Nandy, Swarnava; Wu, Qianbao; Tilley, S. David; Cui, Chunhua
• Is Part Of: Chemical communications. Volume 57:Issue 79(2021)
• Page Start: 10230
• Page End: 10233
• Publication Date: 2021-09-16
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc03406e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We report a regenerable and redox-inactive ZnO x H y layer that was in situ deposited onto metal oxides MO z (M = Co, Fe, and Ni) in alkaline media containing [Zn(OH)4 ] 2− species during water oxidation. Abstract : We report a regenerable and redox-inactive ZnO x H y layer that was in situ deposited onto metal oxides MO z (M = Co, Fe, and Ni) in alkaline media containing [Zn(OH)4 ] 2− species during water oxidation. An interface dipole was developed at the MO z /Zn interface, resulting in a decrease of the OER overpotential. Exemplified by the CoO z /ZnO x H y bilayer structure, it presented a 155 mV lower overpotential to deliver 10 mA cm −2 and long-term stability relative to the unmodified CoO z film.