High alkaline ion storage capacity of hollow interwoven structured Sb/TiO2 particles: the galvanic replacement formation mechanism and volumetric buffer effect

Lin Zhou; Yong Cheng; Qujiang Sun; Lianshan Sun; Chunli Wang; Xuxu Wang; Dongming Yin; Limin Wang; Jun Ming

doi:10.1039/C8CC01279B

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High alkaline ion storage capacity of hollow interwoven structured Sb/TiO₂ particles: the galvanic replacement formation mechanism and volumetric buffer effect†

Lin Zhou,^ab Yong Cheng,*^a Qujiang Sun,^ac Lianshan Sun,^a Chunli Wang,

^ab Xuxu Wang,^ab Dongming Yin,^a Limin Wang

^a and Jun Ming

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, CAS, Changchun, China
E-mail: cyong@ciac.ac.cn, jun.ming@ciac.ac.cn

^b University of Science and Technology of China, Hefei, P. R. China

^c University of Chinese Academy of Sciences, Beijing, China

Abstract

A new galvanic replacement synthetic strategy using metallic Ti as a template for hollow voids is presented and an intriguing hollow interwoven structured Sb/TiO₂ is introduced. The applied Ti can play the triple role of reducing the Sb-ion into Sb, acting as a sacrificial template to generate hollow voids through a structural evolution and behaving as an alternative non-sensitive titanium salt to form TiO₂. Interwoven Sb/TiO₂ can be readily activated and can also buffer drastic volumetric variations during storage of alkaline ions (e.g. Li⁺, Na⁺), thereby demonstrating high capacity and superior cycling ability in rechargeable batteries.

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Article information

DOI: https://doi.org/10.1039/C8CC01279B
Article type: Communication
Submitted: 13 Feb 2018
Accepted: 19 Mar 2018
First published: 19 Mar 2018

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Chem. Commun., 2018,54, 4049-4052

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High alkaline ion storage capacity of hollow interwoven structured Sb/TiO₂ particles: the galvanic replacement formation mechanism and volumetric buffer effect

L. Zhou, Y. Cheng, Q. Sun, L. Sun, C. Wang, X. Wang, D. Yin, L. Wang and J. Ming, Chem. Commun., 2018, 54, 4049 DOI: 10.1039/C8CC01279B

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Chemical Communications