糠醛
过电位
阳极
电解
电催化剂
阴极
电解质
制氢
化学
催化作用
电解水
无机化学
电化学
化学工程
材料科学
氢
电极
有机化学
工程类
物理化学
作者
Talshyn Begildayeva,Jayaraman Theerthagiri,Seung Jun Lee,Ahreum Min,Gyeong‐Ah Kim,Sivakumar Manickam,Myong Yong Choi
出处
期刊:Energy & environmental materials
日期:2023-02-07
被引量:3
摘要
Here, furfural oxidation was performed to replace the kinetically sluggish O2 evolution reaction (OER). Pt-Co3O4 nanospheres were developed via pulsed laser ablation in liquid (PLAL) in a single step for the paired electrocatalysis of an H2 evolution reaction (HER) and furfural oxidation reaction (FOR). The FOR afforded a high furfural conversion (44.2%) with a major product of 2-furoic acid after a 2-h electrolysis at 1.55 V versus reversible hydrogen electrode in a 1.0-M KOH/50-mM furfural electrolyte. The Pt-Co3O4 electrode exhibited a small overpotential of 290 mV at 10 mA cm−2. As an anode and cathode in an electrolyzer system, the Pt-Co3O4 electrocatalyst required only a small applied cell voltage of ∼1.83 V to deliver 10 mA cm−2, compared with that of the pure water electrolyzer (OER∥HER, ∼1.99 V). This study simultaneously realized the integrated production of energy-saving H2 fuel at the cathode and 2-furoic acid at the anode.
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