草酸盐
化学
催化作用
选择性
格式化
氢氧化物
制氢
水滑石
无机化学
镍
氢
甘油
配体(生物化学)
有机化学
生物化学
受体
作者
Jianxiang Wu,Xiang Liu,Yaming Hao,Shaoyan Wang,Ran Wang,Wei Du,Shuangshuang Cha,Xiao Ma,Xuejing Yang,Mali Gong
标识
DOI:10.1002/anie.202216083
摘要
The electro-reforming of glycerol is an emerging technology of simultaneous hydrogen production and biomass valorization. However, its complex reaction network and limited catalyst tunability restrict the precise steering toward high selectivity. Herein, we incorporated the chelating phenanthrolines into the bulk nickel hydroxide and tuned the electronic properties by installing functional groups, yielding tunable selectivity toward formate (max 92.7 %) and oxalate (max 45.3 %) with almost linear correlation with the Hammett parameters. Further combinatory study of intermediate analysis and various spectroscopic techniques revealed the electronic effect of tailoring the valence band that balances between C-C cleavage and oxidation through the key glycolaldehyde intermediate. A two-electrode electro-reforming setup using the 5-nitro-1,10-phenanthroline-nickel hydroxide catalyst was further established to convert crude glycerol into pure H2 and isolable sodium oxalate with high efficiency.
科研通智能强力驱动
Strongly Powered by AbleSci AI