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Get Free AccessThe high electrical conductivity and low dimensionality of graphene is essential for the development of novel lightweight bioanodes for new-generation energy technologies. However, the integration of graphene in biointerfaces presents a formidable challenge, especially because the surface energy of graphene is not compatible with living matter. Here we propose a sustainable chemical control method to reach the demanded surface hydrophilicity and conductivity of graphene nanowalls to form a lightweight, graphene-based, sponge bioanode. The few-nanometer–thick conductive graphene nanowalls create biocompatible hydrophilic microconfinements to harvest the biomass density of electrogenic Shewanella Oneidensis MR-1. The graphene-based bioanode shows a stable and rapid response with a steady-state biocurrent density of 135.35 mA m−2 realized within a few hours. Our novel and sustainable graphene-based material provides a revolutionary energy opportunity for the establishment of new energy-related graphene industries as well as facilitates many startups.
Xuanye Leng, Ricardo Javier Vázquez, Samantha R. McCuskey, Glenn Quek, Yude Su, Konstantin G. Nikolaev, Mariana C. F. Costa, Siyu Chen, Musen Chen, Kou Yang, Jinpei Zhao, Mo Lin, Zhaolong Chen, Guillermo C. Bazan, Konstantin ‘kostya’ Novoselov, Daria V. Andreeva (2023). Bacteria-loaded graphene bioanode for renewable energy generation. Carbon, 205, pp. 33-39, DOI: 10.1016/j.carbon.2023.01.019.
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Type
Article
Year
2023
Authors
16
Datasets
0
Total Files
0
Language
English
Journal
Carbon
DOI
10.1016/j.carbon.2023.01.019
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