Construction of electron transfer chains with methylene blue and ferric ions for direct conversion of lignocellulosic biomass to electricity in a wide pH range

被引：32

作者：

Chen, Yu-An ^{[1
,2
]}

Yang, Huishan ^{[1
,2
]}

Ouyang, Denghao ^{[1
,2
]}

Liu, Tongxin ^{[1
,2
]}

Liu, Dehua ^{[1
,2
]}

Zhao, Xuebing ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Minist Educ China, Key Lab Ind Biocatalysis, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Chem Engn, Inst Appl Chem, Beijing 100084, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2020年 / 265卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Lignocellulosic biomass; Direct biomass fuel cell; Electron transfer chain; Redox electron carrier; Power density; FUEL-CELL; RICE STRAW; GENERATION; LIGNIN; PERFORMANCE; OXIDATION; PRETREATMENT; BIOETHANOL; CATALYSTS; GLUCOSE;

D O I：

10.1016/j.apcatb.2019.118578

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To achieve direct conversion of lignocellulosic biomass to electricity, electron transfer chains (ETCs) were constructed with organic redox compounds and ferric ions as the anode and cathode electron carriers, respectively. Methylene blue (MB) was screened as a promising anode electron carrier with good redox properties and being capable of efficiently working under both acidic and alkaline conditions. Acid or alkali electrolyte played important roles in depolymerization of cellulose and lignin, as well as the deconstruction of biomass (wheat straw) cell wall; however, the presence of MB well facilitated the degradation of cellulose and solublization of wheat straw polymeric components. The reduced MB (MBH) could be well re-oxidized and discharged in a liquid-flow fuel cell (LFFC). The highest out-put power densities (P-max) of the LFFC under acidic and alkali conditions reached 12.3 and 41.8 mW/cm(2) with open circuit voltages of 560 and 1560 mV, respectively.

引用

页数：13

共 43 条

[1] Performance of an alkaline direct ethanol fuel cell with hydrogen peroxide as oxidant [J].