Simultaneous electrocatalytic hydrogenation of aldehydes and phenol over carbon-supported metals

Abstract

Electrocatalytic hydrogenation of furfural, benzaldehyde, and phenol was studied on carbon-supported Rh, Ru, Pd, and Cu catalysts. All metals were active for hydrogenation of the carbonyl group in furfural and benzaldehyde, but only Rh/C was active for phenol hydrogenation. The intrinsic activities for furfural and benzaldehyde conversion were Pd/

Temperature dependence of aqueous-phase phenol adsorption on Pt and Rh

“…Electrochemical conversion of biomass has been proposed as a method to convert waste to value-added streams, with numerous examples of model compounds being converted through electrocatalytic hydrogenation [1][2][3][4][5][6][7][8][9][10][11]. Technoeconomic analyses show that achieving high turnover frequencies at low overvoltages is necessary for an economically feasible process [12].…”

Efficient electrochemical upgradation strategies for the biomass derivative furfural

“…For example, when FF and phenol were present in the reaction mixture, a hydrogen-bonded complex was formed on the catalyst surface due to the co-adsorption effect, and the carbonyl group in the complex was more easily hydrogenated to form FAL than the aldehyde group. 148 The direction of reduction reaction can be changed from hydrogenation to hydrogenolysis by electrocatalyst design. In particular, the hydrogenolysis of FF occurs by further hydrogenation of FAL adsorbed on the catalyst surface to obtain MF.…”

“…For example, when FF and phenol were present in the reaction mixture, a hydrogen-bonded complex was formed on the catalyst surface due to the co-adsorption effect, and the carbonyl group in the complex was more easily hydrogenated to form FAL than the aldehyde group. 148…”

Mechanistic origins of accelerated hydrogenation of mixed alkylaromatics by synchronised adsorption over Rh/SiO2

“…The reason was not discussed in their study. Sanyal et al 5 conducted the electrocatalytic hydrogenation of furfural and benzaldehyde at 25 °C in an aqueous buffer solution. The reaction was unexpectedly accelerated in the presence of phenol.…”