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Transforming biomass into engineered biochar materials for high-performance supercapacitors: Recent advances, challenges, and prospects

Received Date:2024-02-21 Revised Date:2024-03-15 Accepted Date:2024-03-18

DOI:10.20078/j.eep.20240308

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    Abstract:Supercapacitors are widely considered as advanced energy storage devices with vast development prospects due t... Open+
    Abstract:

    Supercapacitors  are  widely  considered  as  advanced  energy  storage  devices  with  vast development prospects due to their excellent properties, including high specific energy and good cyclic stability.  Recently,  the  development  of  novel  and  high-performance  supercapacitors  has  attracted extensive attention. As one of the key components, the electrode material has a significant impact on the electrochemical performance of supercapacitors. Engineering biochar not only has natural advantages such  as  renewability,  cost-effectiveness,  and  environmental- friendliness  but  also  possesses  welldeveloped  properties,  including  pore  structure,  functional  group,  and  cyclic  stability.  Therefore, numerous investigations have been conducted to develop high-performance engineered biochar-based supercapacitors. This review provides an overview of emerging synthesis routes for engineered biochar based  electrode  materials  and  discusses  recent  advances  in  various  synthesis  approaches,  offering deeper  and  more  comprehensive  information  on  engineered  biochar-based  supercapacitors.  Machine learning (ML)-based predictions and inverse designs have contributed to the innovation of engineered biochar-based  electrode  materials  for  high-performance  applications,  clarifying  the  inherent mechanisms  and  complex  relationships  between  the  properties  of  engineering  biochar  and  the electrochemical  performance  of  supercapacitors.  Finally,  detailed  assessments  from  perspectives  of environmental  benefits  and  economic  feasibilities  are  proposed  as  science-based  guidelines  for industries and policymakers. The main existing challenges and solutions of engineered biochar-based energy  storage  systems  are  discussed,  aiming  to  accelerate  commercial  applications  of  engineered biochar-based supercapacitors.

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    Authors:

    • FAN Ruibo1
    • CHEN Liang1
    • XUE Beichen2
    • WANG Ao3
    • SU Yinhai1
    • ZHANG Huiyan1
    • YUAN Xiangzhou1,*

    Units

    • 1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
    • 2. School of Marine Science and Engineering, Hainan University, Haikou 570228, China
    • 3. Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China

    Keywords

    • Supercapacitor
    • Porous carbon materials
    • Biomass
    • Machine learning
    • Electrochemical performance

    Citation

    FAN Ruibo, CHEN Liang, XUE Beichen, et al. Transforming biomass into engineered biochar materials for high-performance supercapacitors: Recent advances, challenges, and prospects[J]. Energy Environmental Protection, 2024, 38(6): 13−24.

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