期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 8, 期 3, 页码 1138-1146出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta06917h
关键词
-
资金
- National Natural Science Foundation of China [21905181, 21975163]
- China Postdoctoral Science Foundation [2018M633125]
To boost hydrogen production from water splitting, the electrochemical oxidation of biomass-derived molecules to produce valuable chemicals is regarded as a promising approach to replace the kinetically sluggish oxygen evolution reaction. Herein, copper sulfide nanowire@NiCo-layered double hydroxide (LDH) nanosheet core-shell nanoarrays are fabricated as efficient bifunctional electrocatalysts for 5-hydroxymethylfurfural (HMF) oxidation and water reduction to simultaneously produce value-added 2,5-furandicarboxylic acid (FDCA) and hydrogen fuel with less energy consumption. Benefiting from the fast charge transfer induced by the CuxS core, the Co/Ni interaction in the LDH nanosheet layer and the open nanostructure, the optimized catalysts exhibit superior electrocatalytic activity (record-high 87 mA cm(-2) @ 1.3 V vs. RHE for HMF oxidation; eta = 107 mV @ 10 mA cm(-2) for HER) and durability; the faradaic efficiency towards FDCA and H-2 is close to unity. The bifunctional two-electrode electrolyzer only requires a low voltage of 1.34 V to co-generate H-2 and FDCA at 10 mA cm(-2). This work highlights the significance of tuning the redox properties of transition metals and constructing nanoarray electrocatalysts towards more efficient energy utilization.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据