Bifunctional bio-photoelectrochemical cells: a "trading" platform for simultaneous production of electric power and hydrogen peroxide

被引：5
作者：
Zhao, Jianguo [1 ,2 ]
Zhang, He [1 ]
Sun, Xiaoxuan [1 ,2 ]
Hao, Shuai [1 ,2 ]
Zhao, Panpan [1 ,2 ]
Zhu, Xinyang [1 ,2 ]
Dong, Shaojun [1 ,2 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2023年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
PERFORMANCE; WATER; POLYMER; LIGHT; DEHYDROGENASE; SELECTIVITY; CONVERSION; REDUCTION; SPHERES; SILICA;
D O I：
10.1039/d2ta07761b
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：
Inspired by natural photosynthesis, bio-photoelectrochemical (BPEC) cells based on photo-enzyme coupled catalysis hold great promise for energy conversion and chemical valorization. Here, we report an integrated BPEC system comprising a glucose dehydrogenase (GDH) modified meso-tetrakis(4-carboxyphenyl)-porphyrin/titanium dioxide (TCPP/TiO2) dye-sensitized photoanode and a mesoporous carbon hollow spheres/carbon paper (MCHS/CP) cathode for light-driven glucose oxidation and hydrogen peroxide (H2O2) production, respectively. Such a proposed bifunctional BPEC cell delivers a maximum power output of 0.24 +/- 0.03 mW cm(-2) with an open circuit voltage of 0.76 +/- 0.01 V and achieves efficient H2O2 accumulation (rate: 0.94 +/- 0.02 mM cm(-2) h(-1)). Overall, our proof-of-concept assembly leverages the ascendancy of biocatalysis, photoelectrocatalysis, and electrosynthesis to provide an optimized design for biotic/abiotic coupling and expand the functional versatility of green energy devices.
引用
收藏
页码：600 / 608
页数：9
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