Liquid Metal-Enabled Tunable Synthesis of Nanoporous Polycrystalline Copper for Selective CO₂-to-Formate Electrochemical Conversion.

ABSTRACT: Copper-based catalysts exhibit high activity in electrochemical CO₂ conversion to value-added chemicals. However, achieving precise control over catalysts design to generate narrowly distributed products remains challenging. Herein, a gallium (Ga) liquid metal-based approach is employed to synthesize hierarchical nanoporous copper (HNP Cu) catalysts with tailored ligament/pore and crystallite sizes. The nanoporosity and polycrystallinity are generated by dealloying intermetallic CuGa₂ formed after immersing pristine Cu foil in liquid Ga in a basic or acidic solution. The liquid metal-based approach allows for the transformation of monocrystalline Cu to the polycrystalline HNP Cu with enhanced CO₂ reduction reaction (CO₂RR) performance. The deallo

SUBMITTER: Zhong W 

PROVIDER: S-EPMC11618703 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature