Copper Tantalate by a Sodium-Driven Flux-Mediated Synthesis for Photoelectrochemical CO₂ Reduction.

ABSTRACT: Copper-tantalate, Cu₂Ta₄O₁₁ (CTO), shows significant promise as an efficient photocathode for multi-carbon compounds (C₂₊) production through photoelectrochemical (PEC) CO₂ reduction, owing to its suitable energy bands and catalytic surface. However, synthesizing CTO poses a significant challenge due to its metastable nature and thermal instability. In this study, this challenge is addressed by employing a flux-mediated synthesis technique using a sodium-based flux to create sodium-doped CTO (Na-CTO) thin films, providing enhanced nucleation and stabilization for the CTO phase. To evaluate the PEC performance and catalytic properties of the films, copper(II) oxide (CuO) at the Na-CTO surface is selectively etched. The etched Na-CTO sho

SUBMITTER: Koche A 

PROVIDER: S-EPMC12391617 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature