Tuning the Catalytic Selectivity Toward C Oxygenate Products by Manipulating Cu Oxidation States in CO Electroreduction.

Enhancing the reaction selectivity for multicarbon products (C) is an important goal for the electrochemical CO reduction (ECOR) process. Cuprous compounds have demonstrated promising C selectivity in the ECOR process, but further investigation is necessary to thoroughly elucidate their catalytic behavior toward C oxygenate production. In this study, copper nitride-based materials with varying reduction rates were employed as precatalysts.

Interface regulation promoting carbon monoxide gas diffusion electrolysis towards C products.

Electrochemical conversion of carbon dioxide and carbon monoxide into value-added multi-carbon products (C) offers a promising approach for artificial oxycarbide recycling. However, C productivity is still limited by gas accessibility inside the catalyst layer. Here, a Cu-PMMA porous hybrid architecture with rich triple-phase boundaries was demonstrated to enhance both gas diffusion and electron transfer, and then, facilitate the kinetics of CO electrolysis.

Ruthenium Incorporated Cobalt Phosphide Nanocubes Derived From a Prussian Blue Analog for Enhanced Hydrogen Evolution.

Electrochemical water splitting in alkaline media plays an important role in mass production of hydrogen. Ruthenium (Ru), as the cheapest member of platinum-group metals, has attracted much attention, and the incorporation of trace amount of Ru with cobalt phosphide could significantly improve the hydrogen evolution reaction (HER) catalytic activity. In this work, ruthenium-incorporated cobalt phosphide nanocubes are synthesized via a reaction between Co-Co Prussian blue analog (Co-PBA) and ruthenium chloride (RuCl) followed by the phosphidation.