Synthesis of MnO/C/Co(3)O(4) nanocomposites by a Mn(2+)-oxidizing bacterium as a biotemplate for lithium-ion batteries.
Synthesis of MnO/C/Co(3)O(4) nanocomposites by a Mn(2+)-oxidizing bacterium as a biotemplate for lithium-ion batteries.
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通过Mn(2)氧化细菌合成MnO/C/Co(3)O(4)纳米复合材料作为锂离子电池的生物模板。
DOI:
10.1080/14686996.2021.1927175
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发表时间:
2021-06-04
影响因子:
5.5
通讯作者:
Li L
中科院分区:
文献类型:
--
作者:
Liu J;Gu T;Sun X;Li L;Xiao F;Wang Z;Li L
The biotemplate and bioconversion strategy represents a sustainable and environmentally friendly approach to material manufacturing. In the current study, biogenic manganese oxide aggregates of the Mn2+-oxidizing bacterium Pseudomonas sp. T34 were used as a precursor to synthesize a biocomposite that incorporated Co (CMC-Co) under mild shake-flask conditions based on the biomineralization process of biogenic Mn oxides and the characteristics of metal ion subsidies. X-ray photoelectron spectroscopy, phase composition and fine structure analyses demonstrated that hollow MnO/C/Co3O4 multiphase composites were fabricated after high-temperature annealing of the biocomposites at 800°C. The cycling and rate performance of the prepared anode materials for lithium-ion batteries were compared. Due to the unique hollow structure and multiphasic state, the reversible discharge capacity of CMC-Co remained at 650 mAh g–1 after 50 cycles at a current density of 0.1 Ag–1, and the coulombic efficiency remained above 99% after the second cycle, indicating a good application potential as an anode material for lithium-ion batteries.
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