Dermis-Inspired Ni <sub>3</sub> S <sub>2</sub> –Modified Bamboo-Based Sandwich-Structured Flexible Electrodes
To meet the stringent demands for high specific capacitance in biomass-based flexible electrodes, inspired by skin structure, this work designed and prepared novel sandwich-structured flexible electrodes (SSFE). Nickel sulfide-modified bamboo fiber membranes (Ni<sub>3</sub>S<sub>2</sub>/BFM) form the surface layer, while a dual-network flexible conductive adhesive (CA), composed of a highly flexible polysiloxane matrix and reinforced with polypyrrole-coated bamboo fiber (PPy@BF), serves as the core layer. The Ni/Ni<sub>3</sub>S<sub>2</sub> support network and the dual-network conductive adhesive, composed of polydimethylsiloxane (PSi) and Cu/PPy@BF, ensure efficient electronic transport. The SSFE exhibits excellent electrochemical performance; the areal capacitance reaches 6760 mF·cm<sup>-2</sup>. This biomimetic sandwich-structured flexible design enhances the mechanical strength of bamboo fiber-based electrodes and shortens electron transport pathways, which provides valuable guidance for developing high-performance biomass-based flexible electrodes.
Authors
- Rongxiang Zeng
- Jingyi Liu (ORCID: https://orcid.org/0000-0001-6705-1396)
- Jiyuan Zheng (ORCID: https://orcid.org/0000-0003-4315-8521)
- Yiqing Shi
- Minghui Liu
- Xianchun Yu
- Shan Zhao
- Xufeng Zeng
- Delin Sun
Institutions
- Central South University of Forestry and Technology (CN)
- Hunan City University (CN)
- Hunan First Normal University (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2026-01-28
- DOI
- https://doi.org/10.1021/acsami.5c17495
- Primary Topic
- Supercapacitor Materials and Fabrication
- Type
- article
- Field-Weighted Citation Impact
- 0.00