Lysozyme-Templated Meso-Macroporous Hollow TiO2 for Lithium Ion Battery Anode
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Posted on 2018-01-19 - 19:21
The
use of biomolecules as templates for biomineralization is widely
viewed as a favorable green synthesis route to produce particles of
tailored properties. To synthesize TiO2 particles suitable
for lithium ion battery (LIB) anodes, four different types of biotemplates
(i.e., native and denatured lysozyme with or without phosphate) were
used to direct TiO2 biomineralization. The different size,
morphology, and rigidity of the deliberately designed biotemplates
enabled the controlled mineralization of TiO2 particles
of versatile morphology, particle/grain/pore size, crystallinity,
surface area, and specific pore volume. This rendered differential
electrochemical characteristics and potential of the biomineralized
TiO2 as LIB anode. In particular, meso-macroporous hollow
spherical TiO2 (biomineralized using denatured lysozyme
in the presence of phosphate ions, followed by calcination at 500
°C) shows great potential to be used as an LIB anode for high-power
application with its average specific capacity of 103 mA h g–1 at a C-rate of 40 C over 400 cycles.
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Salman, Muhammad
Saad; Park, A Reum; Cha, Min Jin; Choi, Youngjin; Jang, Sung Kyu; Tan, Lihan; et al. (2018). Lysozyme-Templated Meso-Macroporous Hollow TiO2 for Lithium Ion Battery Anode. ACS Publications. Collection. https://doi.org/10.1021/acsanm.7b00164