Photoelectrochemical NADH regeneration on a polymer semiconductor-based photocathode

被引:3
|
作者
Li, Nanxin [1 ]
You, Jia [1 ]
Huang, Lanlan [2 ]
Zhang, Haoran [1 ]
Wang, Xianlong [1 ]
He, Lihua [1 ]
Gong, Chunli [2 ]
Lin, Shiwei [1 ]
Zhang, Bingging [1 ,2 ]
机构
[1] Hainan Univ, Sch Mat Sci & Engn, State Key Lab Marine Resource Utilizat South China, Haikou 570228, Peoples R China
[2] Hubei Engn Univ, Sch Chem & Mat Sci, Xiaogan 432000, Peoples R China
基金
海南省自然科学基金; 中国国家自然科学基金;
关键词
ELECTROCHEMICAL REGENERATION; ELECTRICITY PRODUCTION; OXYGEN REDUCTION; WATER OXIDATION; COMPLEXES; CO2;
D O I
10.1039/d3gc00559c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As an efficient electron and proton donor, reduced nicotinamide adenine dinucleotide (NADH) coenzyme holds great promise in the enzymatic industry; however, the high cost of NADH regeneration and its stoichiometric consumption in the catalytic process hinders its widespread application. Inspired by the process of natural photosynthesis, we report a green photoelectrochemical (PEC) strategy to realize NADH regeneration on a polyterthiophene (pTTh) semiconductor by using water and solar energy as reaction sources. The pTTh shows an unprecedentedly positive onset potential of 0.6 V vs. RHE for achieving an enzymatically active product of 1,4-NADH under simulated sunlight illumination. When operating the reaction at 0.1 V vs. RHE for 3 h, 2.8 mM 1,4-NADH can be generated, and the turnover frequency (TOF) is determined to be 3.73 h(-1). Besides, the produced 1,4-NADH can be in situ employed to assist glutamate dehydrogenase in catalyzing alpha-ketoglutarate to produce l-glutamate. This study demonstrates a sustainable pathway to produce high value-added NADH on a polymer semiconductor by converting solar energy.
引用
收藏
页码:5247 / 5256
页数:10
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