Electrocatalytic and Photoelectrocatalytic Methanol Oxidation by Cobalt Carbonate

被引：15
作者：
Udachyan, Iranna [1 ,2 ]
Zidki, Tomer [1 ,2 ]
Mizrahi, Amir [3 ]
Patra, Shanti G. [1 ,2 ,5 ]
Meyerstein, Dan [1 ,2 ,4 ]
机构：
[1] Ariel Univ, Dept Chem Sci, IL-40700 Ariel, Israel
[2] Ariel Univ, Rad Res Ctr, IL-40700 Ariel, Israel
[3] Nucl Res Ctr Negev, Chem Dept, IL-8419001 Beer Sheva, Israel
[4] Ben Gurion Univ Negev, Dept Chem, IL-8410501 Beer Sheva, Israel
[5] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India
来源：
ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 10期
关键词：
Na3CoIII(CO3)(3); electrodeposition; cyclic voltammetry; electrochemical and photoelectrochemical behavior; methanol oxidation; FUEL-CELLS; ELECTROOXIDATION; CATALYSTS; NANOPARTICLES; SIZE; SPECTROSCOPY; PERFORMANCE; ELECTRODES; COMPLEXES; PARTICLES;
D O I：
10.1021/acsaem.2c01766
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Na3CoIII(CO3)(3) was deposited on Pt and Pd electrode surfaces by a chronoamperometric technique. The deposited Na3CoIII(CO3)(3) was characterized using various surface characterization techniques. These Na3CoIII(CO3)(3) deposited electrodes are subsequently utilized for the electrocatalytic and photoelectrocatalytic methanol oxidation reaction (MOR). The MOR reaction is studied using cyclic voltammetry and chronoamperometric measurements in KOH and Na2CO3 electrolytes. The Na3CoIII(CO3)(3) deposited on the Pt electrode showed enhanced current density in KOH/Na2CO3 media, which relates to methanol oxidation compared with bare Pt and Na3CoIII(CO3)(3) deposited on the Pd electrode. The Na3CoIII(CO3)(3) deposited Pt electrode executes high electrocatalytic oxidation and shows an anodic peak current density of 19.7 mA cm(-2) at 0.1 V vs NHE. Interestingly, the Na3CoIII(CO3)(3) deposited on the Pt electrode shows a good photoelectrocatalytic response under UV-vis light irradiation. An anodic peak current density of 22.9 mA cm(-2) is observed for methanol oxidation under light irradiation.
引用
收藏
页码：12261 / 12271
页数：11
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