析氧
电催化剂
制氢
分解水
糠醇
材料科学
化学工程
可逆氢电极
纳米棒
双功能
无机化学
甲酸
电化学
氢
催化作用
电极
化学
工作电极
纳米技术
有机化学
物理化学
光催化
工程类
作者
Meng Wei,Mingli Li,Qiongzhi Gao,Xin Cai,Shengsen Zhang,Yueping Fang,Feng Peng,Siyuan Yang
出处
期刊:Small
[Wiley]
日期:2023-10-19
被引量:4
标识
DOI:10.1002/smll.202305906
摘要
Abstract Replacing traditional oxygen evoltion reaction (OER) with biomass oxidation reaction (BOR) is an advantageous alternative choice to obtain green hydrogen energy from electrocatalytic water splitting. Herein, a novel of extremely homogeneous Ni 3 S 2 nanosheets covered TiO 2 nanorod arrays are in situ growth on conductive Ni foam (Ni/TiO 2 @Ni 3 S 2 ). The Ni/TiO 2 @Ni 3 S 2 electrode exhibits excellent electrocatalytic activity and long‐term stability for both BOR and hydrogen evolution reaction (HER). Especially, taking glucose as a typical biomass, the average hydrogen production rate of the HER‐glucose oxidation reaction (GOR) two‐electrode system reached 984.74 µmol h −1 , about 2.7 times higher than that of in a common HER//OER two‐electrode water splitting system (365.50 µmol h −1 ). The calculated power energy saving efficiency of the GOR//HER system is about 13% less than that of the OER//HER system. Meanwhile, the corresponding selectivity of the value‐added formic acid produced by GOR reaches about 80%. Moreover, the Ni/TiO 2 @Ni 3 S 2 electrode also exhibits excellent electrocatalytic activity on a diverse range of typical biomass intermediates, such as urea, sucrose, fructose, furfuryl alcohol (FFA), 5‐hydroxymethylfurfural (HMF), and alcohol (EtOH). These results show that Ni/TiO 2 @Ni 3 S 2 has great potential in electrocatalysis, especially in replacing OER reaction with BOR reaction and promoting the sustainable development of hydrogen production.
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