Manifolding active sites and in situ/operando electrochemical-Raman spectroscopic studies of single-metal nanoparticle-decorated CuO nanorods in furfural biomass valorization to H2 and 2-furoic acid

被引：0

作者：

Jiwon Kim ^{[1
]}

Talshyn Begildayeva ^{[1
]}

Jayaraman Theerthagiri ^{[1
]}

Cheol Joo Moon ^{[2
]}

Ahreum Min ^{[2
]}

Seung Jun Lee ^{[3
]}

Gyeong-Ah Kim ^{[2
]}

Myong Yong Choi ^{[1
,2
]}

机构：

[1] Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University

[2] Core-Facility Center for Photochemistry & Nanomaterials, Gyeongsang National University

[3] Department of IT-Energy Convergence (BK21 FOUR), Korea National University of Transportation

来源：

Journal of Energy Chemistry | 2023年 / 84卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

D O I：

暂无

中图分类号：

TK6 [生物能及其利用]; TQ426 [催化剂（触媒）];

学科分类号：

080703 ; 080502 ; 081705 ;

摘要：

Here,CuO nanorods fabricated via pulsed laser ablation in liquids were decorated with Ir,Pd,and Ru NPs(loading～7 wt%) through pulsed laser irradiation in the liquids process.The resulting NPs-decorated CuO nanorods were characterized spectroscopically and employed as multifunctional electrocatalysts in OER,HER,and the furfural oxidation reactions(FOR).Ir-CuO nanorods afford the lowest overpotential of～345 mV(HER) and 414 mV(OER) at 10 mA cm-2,provide the highest 2-furoic acid yield(～10.85 mM) with 64.9% selectivity,and the best Faradaic efficiency～72.7% in 2 h of FOR at 1.58 V(vs.RHE).In situ electrochemical-Raman analysis of the Ir-CuO detects the formation of the crucial intermediates,such as Cu(Ⅲ)-oxide,Cu(OH)2,and Irx(OH)y,on the electrode-electrolyte surface,which act as a promoter for HER and OER.The Ir-CuO ‖ Ir-CuO in a coupled HER and FOR-electrolyzer operates at～200 mV lower voltage,compared with the conventional electrolyzer and embodies the dual advantage of energy-saving H2and 2-furoic acid production.

引用

页码：50 / 61

页数：12

共 1 条

[1] Manifolding active sites and in situ/operando electrochemical-Raman spectroscopic studies of single-metal nanoparticle-decorated CuO nanorods in furfural biomass valorization to H2 and 2-furoic acid
Kim, Jiwon
Begildayeva, Talshyn
Theerthagiri, Jayaraman
Moon, Cheol Joo
Min, Ahreum
Lee, Seung Jun
Kim, Gyeong-Ah
Choi, Myong Yong
JOURNAL OF ENERGY CHEMISTRY, 2023, 84 : 50 - 61

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