Structure-Tailored Surface Oxide on Cu-Ga Intermetallics Enhances CO Reduction Selectivity to Methanol at Ultralow Potential.

Electrochemical CO reduction reaction (eCO RR) is performed on two intermetallic compounds formed by copper and gallium metals (CuGa and Cu Ga ). Among them, CuGa selectively converts CO to methanol with remarkable Faradaic efficiency of 77.26% at an extremely low potential of -0.

Two Keggin-Based Isostructural POMOF Hybrids: Synthesis, Crystal Structure, and Catalytic Properties.

In this work we synthesized two novel isostructural twin hybrids Comp1: [H(CHN)Cu][PMoO] & Comp2: [H(CHN)Cu][PWO], based on the Keggin ions (PMoO & PWO), Cu(I) cation, and 4,4'-bipyridine, by in situ hydrothermal reduction of Cu, facilitated through extensive standardizations of synthetic pH conditions. Both compounds crystallized in monoclinic P2/ c space group with similar lattice parameters and crystal structures. The structural similarity prompted us to explore comparative catalytic properties of the hybrids, to understand the relative role of the POM species in the activity.