Boosting ethanol electrooxidation at RhBi alloy and Bi₂O₃ composite surfaces in alkaline media

Abstract

As a promising alternative to Pd and Pt catalysts, Rh has been found to be an effective catalyst for the ethanol oxidation reaction (EOR). However, Rh-based catalysts can only show...

Selective Electrocatalytic Oxidation of Ethylene Glycol into Glycolic Acid at Coin-Group Electrodes: An Investigation on Catalytic Activity and Selectivity

“…Noble metal, especially Pt-based group metal (PGM), electrocatalysts are widely deemed as the best cases exhibiting high catalytic activity in the small-molecule alcohol oxidation reaction. − In the past few years, a variety of Pt-based nanocatalysts have emerged for EG electrooxidation reaction (EGOR), such as PdAg/CNT, PdPt nanowires, RhCu nanoboxes, Au-doped PtBi intermetallics, and Pd-PdSe nanosheets . Nevertheless, the vast majority of efforts have been devoted to boosting the C–C cleavage of EG (C1 pathway) to realize higher energy conversion toward the development of direct ethylene glycol fuel cells (DEGFCs).…”

From Ethylene Glycol to Glycolic Acid: Electrocatalytic Conversion on Pt-Group Metal Surfaces

“…First, an applied potential of 0 V vs RHE was held for 10 min as the high-purity CO gas dosing onto Pt-group metal electrode surfaces in 1 M NaOH to form the adsorbed CO monolayer (CO ML ). 33 Then, the dissolved CO gas in the NaOH solution was removed via bubbling high-purity N 2 for at least 60 min at 0 V vs. RHE. After that, the cyclic voltammograms (two cycles) were recorded from 0 to 1.2 V vs. RHE at a scan rate of 5 mV s −1 , and the first segment of the recorded CVs is the striping profile of CO ML .…”

Ultrafine PdAgAu alloy nanowires for ethanol oxidation electrocatalysis

“…With the increasing demand for clean and sustainable energy, direct ethanol fuel cells (DEFCs) have received abundant attention because ethanol possesses high energy density, low permeability in proton exchange membranes and low toxicity. [1][2][3][4][5][6][7][8][9] But the slow reaction kinetics of the ethanol oxidation reaction (EOR) greatly limits the commercial application of DEFCs. [10][11][12] At present, Pd-based nanomaterials are considered as one of the most effective EOR catalysts with excellent catalytic activity.…”