Thermodynamic phase control of Cu-Sn alloy electrocatalysts for selective CO reduction.

In the electrochemical CO reduction reaction (CORR), Cu alloy electrocatalysts can control the CORR selectivity by modulating the intermediate binding energy. Here, we report the thermodynamic-based Cu-Sn bimetallic phase control in heterogeneous catalysts for selective CO conversion. Starting from the thermodynamic understanding about Cu-Sn bimetallic compounds, we established the specific processing window for Cu-Sn bimetallic phase control.