The Cooperative Effects of the Rh‐M Dual‐Metal Atomic Pairs in Formic Acid Oxidation

(Rh-Cu), forming a volcano curve of the reaction activity. Density functional theory calculations combined with in situ Fourier transform infrared spectrometer (FTIR) spectra reveal that formic acid oxidized on a series of DAP-(M, Rh)/CN catalysts through the formate route with the subsidiary M metal atoms binding the HCOO species and the Rh atom accepting the H atoms. The most suitable adsorption strength of HCOO on the Cr sites luckily contributes to two spontaneous elementary steps and thus accelerates the FAOR rates.