Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received December 17, 2025
Revised February 18, 2026
Accepted February 25, 2026
Available online July 25, 2026
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Silk Fibroin-Regulated Biomimetic Mineralization of Ni(OH)2 for Energy Storage Applications
https://doi.org/10.1007/s11814-026-00688-1
Abstract
Understanding and controlling biomimetic hybrid materials is essential to obtain novel hierarchical structures and expand
the range of potential applications. Here, the biomineralization approach was applied as a rational integration method of
silk fibroin and nickel hydroxide. Under protein-directed self-assembly conditions, hollow structures of hierarchical hybrid
nickel hydroxide microflowers were systematically formed due to structural disorders such as stacking faults. Notably,
the uniform, well-dispersed, and tunable morphology of biomineralized hybrid nickel hydroxides hollow microflowers is
achieved by controlling the concentration of silk fibroin and nickel (II) chloride. The effects of organic solvents and nickel
precursors on the morphology of nickel hydroxides were also elucidated. The fibroin/Ni(OH)2 hybrid material exhibits
good charge storage performance, rate capability, proton diffusion coefficient, and outstanding cyclic stability owing to its
high ionic conductivity and the presence of β-sheet crystallites.
