State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China.
College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong, 518055, P. R. China.
Angew Chem Int Ed Engl. 2022 Mar 14;61(12):e202115636. doi: 10.1002/anie.202115636. Epub 2022 Jan 28.
Integrating biomass upgrading and hydrogen production in an electrocatalytic system is attractive both environmentally and in terms of sustainability. Conventional electrolyser systems coupling anodic biosubstrate electrooxidation with hydrogen evolution reaction usually require electricity input. Herein, we describe the development of an electrocatalytic system for simultaneous biomass upgrading, hydrogen production, and electricity generation. In contrast to conventional furfural electrooxidation, the employed low-potential furfural oxidation enabled the hydrogen atom of the aldehyde group to be released as gaseous hydrogen at the anode at a low potential of approximately 0 V (vs. RHE). The integrated electrocatalytic system could generate electricity of about 2 kWh per cubic meter of hydrogen produced. This study may provide a transformative technology to convert electrocatalytic biomass upgrading and hydrogen production from a process requiring electricity input into a process to generate electricity.
在电催化系统中集成生物质升级和制氢在环境和可持续性方面都具有吸引力。传统的电解槽系统将阳极生物底物电氧化与析氢反应相耦合，通常需要电能输入。在此，我们描述了一种用于同时进行生物质升级、制氢和发电的电催化系统。与传统的糠醛电氧化相比，所采用的低电位糠醛氧化使醛基中的氢原子能够在阳极以约 0 V（相对于 RHE）的低电位释放为气态氢。集成的电催化系统每立方米产生的氢气可产生约 2 kWh 的电能。这项研究可能为将电催化生物质升级和制氢从需要电能输入的过程转化为发电过程提供一种变革性技术。
