Abstract

Photoelectrochemical (PEC) water splitting is attracting tremendous research interest as a promising energy con-version and storage route to ease the reliance on fossil fuels and contribute to sustainable development [4, 5]. Since the sluggish kinetics of water oxidation reaction at the anode side bottleneck the overall performance of the entire device, current research focuses on enhancing the catalytic performance at the photoanodes [4, 6].

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