Enabling Solar Water Oxidation by BiVO₄ in Strongly Acidic Solutions.

ABSTRACT: The oxygen evolution reaction (OER) is paired with various electrochemical and photoelectrochemical reduction reactions used for fuel and chemical production. As there is a strong interest in performing many of these reduction reactions in strongly acidic solutions to increase the reaction rate, efficiency, or selectivity, there is also a great interest in enabling efficient and stable OER in strongly acidic solutions. In this study, we report stable photoelectrochemical OER (POER) of a BiVO₄ photoanode in 0.1 M HNO₃ (pH 1). This was achieved by using Nb₂O₅ as a protection layer. While Nb₂O₅ was rarely used as a protection layer for photoelectrodes in the past, we show its excellent capability to suppress both the chemical a

SUBMITTER: Seo D 

PROVIDER: S-EPMC12503356 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature