Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 7, Issue 15, Pages 13217-13225Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b02478
Keywords
3D porous carbon; NiSe/Ni2P nanoparticles; Elastin-like polypeptides; Anode active materials; Batteries
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Funding
- NNSF of China [61728401, 5161101159, 21805136, 61775089]
- Jiangsu Province [JNHB-135]
- Natural Science Foundation of Jiangsu Province [BK20170999]
- Autonomous Region Science and Technology Project [2018E02088]
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Three-dimensional (3D) porous carbon-encapsulated NiSe/Ni2P nanoparticles (NiSe/Ni2P/C) are synthesized via using the elastin-like polypeptides with hexahistidine tag (ELP16-His) followed by the selenization process and annealing treatment. The biochemistry-derived NiSe/Ni2P nanoparticles (similar to 8 nm) have large specific surface area and are homogeneously dispersed in the 3D porous carbon matrix. It is found that the crystalline structure and morphologies of the product could be controlled with ELP16-His. As anodes in the application of lithium ion batteries (LIBs), the NiSe/Ni2P/C presents high reversible capacities (911.3 mA h g(-1) at 100th cycle, 100 mA g(-1)) and excellent rates behavior (220.7 mA h g(-1) at 10 A g(-1)). In addition, high specific capacities of 353.6 mA h g(-1) (100th cycle, 100 mA g(-1)) also can be achieved by NiSe/Ni2P/C in sodium ion batteries (SIBs).
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