Pt/IrO enables selective electrochemical C-H chlorination at high current.

Employing electrochemistry for the selective functionalization of liquid alkanes allows for sustainable and efficient production of high-value chemicals. However, the large potentials required for C(sp)-H bond functionalization and low water solubility of such alkanes make it challenging. Here we discover that a Pt/IrO electrocatalyst with optimized Cl binding energy enables selective generation of Cl free radicals for C-H chlorination of alkanes.

Modulation of *CHO Adsorption to Facilitate Electrocatalytic Reduction of CO to CH over Cu-Based Catalysts.

Copper (Cu) can efficiently catalyze the electrochemical CO reduction reaction (CORR) to produce value-added fuels and chemicals, among which methane (CH) has drawn attention due to its high mass energy density. However, the linear scaling relationship between the adsorption energies of *CO and *CHO on Cu restricts the selectivity toward CH. Alloying a secondary metal in Cu provides a new freedom to break the linear scaling relationship, thus regulating the product distribution.

Back-illuminated photoelectrochemical flow cell for efficient CO reduction.

Photoelectrochemical CO reduction reaction flow cells are promising devices to meet the requirements to produce solar fuels at the industrial scale. Photoelectrodes with wide bandgaps do not allow for efficient CO reduction at high current densities, while the integration of opaque photoelectrodes with narrow bandgaps in flow cell configurations still remains a challenge. This paper describes the design and fabrication of a back-illuminated Si photoanode promoted PEC flow cell for CO reduction reaction.

SrO-layer insertion in Ruddlesden-Popper Sn-based perovskite enables efficient CO electroreduction towards formate.

Tin (Sn)-based oxides have been proved to be promising catalysts for the electrochemical CO reduction reaction (CORR) to formate (HCOO). However, their performance is limited by their reductive transformation into metallic derivatives during the cathodic reaction. This paper describes the catalytic chemistry of a SrSnO electrocatalyst with a Ruddlesden-Popper (RP) perovskite structure for the CORR.

The effect of specific adsorption of halide ions on electrochemical CO reduction.

In the electrochemical CO reduction reaction (CORR), halide ions could impose a significant effect on multi-carbon (C) product production for Cu-based catalysts by a combined contribution from various mechanisms. However, the nature of specific adsorption of halide ions remains elusive due to the difficulty in decoupling different effects. This paper describes a facile method to actively immobilize the morphology of Cu-based catalysts during the CORR, which makes it possible to reveal the fundamental mechanism of specific adsorption of halide ions.