Continuous and low-carbon production of biomass flash graphene

Xiangdong Zhu (), Litao Lin, Mingyue Pang, Chao Jia, Longlong Xia, Guosheng Shi, Shicheng Zhang, Yuanda Lu, Liming Sun, Fengbo Yu, Jie Gao, Zhelin He, Xuan Wu, Aodi Li, Liang Wang, Meiling Wang, Kai Cao, Weiguo Fu, Huakui Chen, Gang Li, Jiabao Zhang, Yujun Wang (), Yi Yang () and Yong-Guan Zhu ()
Additional contact information
Xiangdong Zhu: Fudan University
Litao Lin: Fudan University
Mingyue Pang: Chongqing University
Chao Jia: Fudan University
Longlong Xia: Chinese Academy of Sciences
Guosheng Shi: Shanghai University
Shicheng Zhang: Fudan University
Yuanda Lu: Fudan University
Liming Sun: Fudan University
Fengbo Yu: Fudan University
Jie Gao: Fudan University
Zhelin He: Fudan University
Xuan Wu: Fudan University
Aodi Li: Fudan University
Liang Wang: Jiangsu University of Science and Technology
Meiling Wang: Chinese Academy of Sciences
Kai Cao: Chinese Academy of Sciences
Weiguo Fu: Chinese Academy of Sciences
Huakui Chen: Chinese Academy of Sciences
Gang Li: Chinese Academy of Sciences
Jiabao Zhang: Chinese Academy of Sciences
Yujun Wang: Chinese Academy of Sciences
Yi Yang: Chongqing University
Yong-Guan Zhu: Chinese Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Flash Joule heating (FJH) is an emerging and profitable technology for converting inexhaustible biomass into flash graphene (FG). However, it is challenging to produce biomass FG continuously due to the lack of an integrated device. Furthermore, the high-carbon footprint induced by both excessive energy allocation for massive pyrolytic volatiles release and carbon black utilization in alternating current-FJH (AC-FJH) reaction exacerbates this challenge. Here, we create an integrated automatic system with energy requirement-oriented allocation to achieve continuous biomass FG production with a much lower carbon footprint. The programmable logic controller flexibly coordinated the FJH modular components to realize the turnover of biomass FG production. Furthermore, we propose pyrolysis-FJH nexus to achieve biomass FG production. Initially, we utilize pyrolysis to release biomass pyrolytic volatiles, and subsequently carry out the FJH reaction to focus on optimizing the FG structure. Importantly, biochar with appropriate resistance is self-sufficient to initiate the FJH reaction. Accordingly, the medium-temperature biochar-based FG production without carbon black utilization exhibited low carbon emission (1.9 g CO2-eq g−1 graphene), equivalent to a reduction of up to ~86.1% compared to biomass-based FG production. Undoubtedly, this integrated automatic system assisted by pyrolysis-FJH nexus can facilitate biomass FG into a broad spectrum of applications.

Date: 2024
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DOI: 10.1038/s41467-024-47603-y

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