Raw biomass electroreforming coupled to green hydrogen generation

Author:

Zhao HuORCID,Lu Dan,Wang Jiarui,Tu Wenguang,Wu Dan,Koh See WeeORCID,Gao PingqiORCID,Xu Zhichuan J.ORCID,Deng SiliORCID,Zhou YanORCID,You BoORCID,Li HongORCID

Abstract

AbstractDespite the tremendous progress of coupling organic electrooxidation with hydrogen generation in a hybrid electrolysis, electroreforming of raw biomass coupled to green hydrogen generation has not been reported yet due to the rigid polymeric structures of raw biomass. Herein, we electrooxidize the most abundant natural amino biopolymer chitin to acetate with over 90% yield in hybrid electrolysis. The overall energy consumption of electrolysis can be reduced by 15% due to the thermodynamically and kinetically more favorable chitin oxidation over water oxidation. In obvious contrast to small organics as the anodic reactant, the abundance of chitin endows the new oxidation reaction excellent scalability. A solar-driven electroreforming of chitin and chitin-containing shrimp shell waste is coupled to safe green hydrogen production thanks to the liquid anodic product and suppression of oxygen evolution. Our work thus demonstrates a scalable and safe process for resource upcycling and green hydrogen production for a sustainable energy future.

Funder

Nanyang Technological University

Ministry of Education - Singapore

Agency for Science, Technology and Research

Publisher

Springer Science and Business Media LLC

Subject

General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry

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