无机化学
电化学
催化作用
制氢
化学
木质纤维素生物量
过氧化氢
纤维素
多金属氧酸盐
生物量(生态学)
水解
电解质
化学工程
氢
材料科学
有机化学
电极
工程类
物理化学
地质学
海洋学
作者
Weizhuo Xu,Bingjie Zhou,Qing Wang,Guohao Xu,Ning Li,Wei Liu,Z. Conrad Zhang
出处
期刊:Chemcatchem
[Wiley]
日期:2023-06-28
卷期号:15 (15)
被引量:2
标识
DOI:10.1002/cctc.202300522
摘要
Abstract Biomass oxidation in anode electrolyte solution is investigated for energy‐efficient hydrogen production. The redox of polyoxometalate (POM) as both biomass oxidation catalyst in the solution and charge carrier through regeneration at the graphite electrode promotes hydrogenation generation at the cathode, but suffers from a limited rate of biomass degradation due to the complex structure of solid lignocellulosic biomass. Herein, transition metal salts (CuCl 2 , CrCl 3 and FeCl 3 ) are studied as the synergistic catalysts with POM to promote the degradation of raw biomass. Notably, FeCl 3 has the most significant effect in promoting the hydrolysis of cellulose by coordinating with the oxygen donor groups of carbohydrates and helps re‐oxidize reduced POM to maintain high oxidation ability of the solution. As a result, the faraday efficiency of hydrogen production at the cathode could reach 90 %. Coupling oxidation of biomass by contiguously recharged metal salts and POM with electrochemical hydrogen evolution, pure hydrogen source with improved economics is obtained at low energy consumption.
科研通智能强力驱动
Strongly Powered by AbleSci AI