Efficient Hydrogen Production by Direct Electrolysis of Waste Biomass at Intermediate Temperatures

被引:69
作者
Hibino, Takashi [1 ]
Kobayashi, Kazuyo [1 ]
Ito, Masaya [1 ]
Ma, Ojang [1 ]
Nagao, Masahiro [1 ]
Fukui, Mai [2 ]
Teranishi, Shinya [2 ]
机构
[1] Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan
[2] Soken Inc, Nisshin, Aichi 4700111, Japan
来源
ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2018年 / 6卷 / 07期
基金
日本学术振兴会;
关键词
Waste biomass; Electrolysis; Hydrogen production; Mesoporous carbon; ACTIVATED CARBON; BIOFUEL PRODUCTION; FUEL-CELLS; CHEMISTRY; ETHANOL; FIBERS; REDOX;
D O I
10.1021/acssuschemeng.8b01701
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Biomass has been considered as an alternative feedstock for energy and material supply. However, the lack of high-efficiency and low-cost processes for biomass utilization and conversion hinders its large-scale application. This report describes electrochemical hydrogen production from waste biomass that does not require large amounts of energy or high production costs. Hydrogen was produced by the electrolysis of bread residue, cypress sawdust, and rice chaff at an onset cell voltage of ca. 0.3 V, with high current efficiencies of approximately 100% for hydrogen production at the cathode and approximately 90% for carbon dioxide production at the anode. The hydrogen yields per 1 mg of the raw material were 0.1-0.2 mg for all tested fuels. Electrolysis proceeded continuously at plateau voltages that were proportional to the current. These characteristics were attributable to the high catalytic activity of the carbonyl-group functionalized mesoporous carbon for the anode reaction, and that the major components of biomass such as cellulose, starch, lignin, protein, and lipid were effectively utilized as fuels for hydrogen production.
引用
收藏
页码:9360 / 9368
页数:17
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