多元醇
乙二醇
氮气
生物量(生态学)
木糖
化学
材料科学
三氧化钨
化学工程
无机化学
钨
有机化学
海洋学
发酵
工程类
聚氨酯
地质学
作者
Fanhao Kong,Hongru Zhou,Zhiwei Chen,Zhaolin Dou,Min Wang
标识
DOI:10.1002/anie.202210745
摘要
Abstract CO and H 2 evolution from renewable and abundant biomass represent a sustainable way, but is challenged to be produced under mild conditions. Herein, we propose to produce CO and H 2 from biomass via a divided photoelectrochemical (PEC) cell at room temperature. Nitrogen doped tungsten trioxide (N‐WO 3 ) photoanode reforms biopolyols to CO and H + , and platinum cathode reduces H + to H 2 , achieving CO evolution rate of 45 mmol m −2 h −1 (>75 % gas selectivity) and H 2 evolution rate of 237 mmol m −2 h −1 with purity >99.99 % from glycerol. The nitrogen doping induces structure polarity of WO 3 photoanode, leading to the formation of an internal electric field which promotes the separation and transfer of the photoinduced charges and improves PEC efficiency. A wide range of biopolyols, such as ethylene glycol, xylose, fructose, glucose, sucrose, lactose, maltose, and inulin were effectively converted into CO and H 2 . This work provides a promising method to produce highly pure H 2 together with CO from biomass.
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