Controlled synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface for high reversible capacity and long-life lithium-ion batteries

Shuang Hong Xue, Hao Xie, Hang Ping, Xiao Mei Xu, Jing Li, Xiao Yu Yang, Zheng Yi Fu, Bao Lian Su

Research output: Contribution to journalArticle

Abstract

TiO2 is a promising anode material for lithium-ion batteries. The electrochemical performance of TiO2 can be improved by optimization of nanostructures. The present study was proposed to control the synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface. A recombinant protein INP-SiliSila containing functional domains of silicatein-α and silaffin was constructed and expressed on the E. coli surface. Deposition of the TiO2 precursor was facilitated by INP-SiliSila on the E. coli surface. Upon calcination, TiO2 coating on the E. coli surface transformed to anatase and formed well-defined rod-shaped particles. The electrochemical performance of the as-prepared anatase TiO2 as anode electrodes was improved and better than that of most reported ones. The present study not only provides an organism-based approach for fabricating nanostructured anatase TiO2 with enhanced electrochemical performance, but also opens a new avenue to take advantage of genetically modified bacterial surfaces in the synthesis and structure control of materials.

Original languageEnglish
Pages (from-to)59422-59428
Number of pages7
JournalRSC Advances
Volume6
Issue number64
DOIs
Publication statusPublished - 2016

Fingerprint

Titanium dioxide
Escherichia coli
Anodes
Recombinant proteins
Recombinant Proteins
Calcination
Nanostructures
Lithium-ion batteries
titanium dioxide
Coatings
Electrodes

Cite this

@article{788761cd01f4459088d2dbfd67ce22a6,
title = "Controlled synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface for high reversible capacity and long-life lithium-ion batteries",
abstract = "TiO2 is a promising anode material for lithium-ion batteries. The electrochemical performance of TiO2 can be improved by optimization of nanostructures. The present study was proposed to control the synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface. A recombinant protein INP-SiliSila containing functional domains of silicatein-α and silaffin was constructed and expressed on the E. coli surface. Deposition of the TiO2 precursor was facilitated by INP-SiliSila on the E. coli surface. Upon calcination, TiO2 coating on the E. coli surface transformed to anatase and formed well-defined rod-shaped particles. The electrochemical performance of the as-prepared anatase TiO2 as anode electrodes was improved and better than that of most reported ones. The present study not only provides an organism-based approach for fabricating nanostructured anatase TiO2 with enhanced electrochemical performance, but also opens a new avenue to take advantage of genetically modified bacterial surfaces in the synthesis and structure control of materials.",
author = "Xue, {Shuang Hong} and Hao Xie and Hang Ping and Xu, {Xiao Mei} and Jing Li and Yang, {Xiao Yu} and Fu, {Zheng Yi} and Su, {Bao Lian}",
year = "2016",
doi = "10.1039/c6ra09974b",
language = "English",
volume = "6",
pages = "59422--59428",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "The Royal Society of Chemistry",
number = "64",

}

Controlled synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface for high reversible capacity and long-life lithium-ion batteries. / Xue, Shuang Hong; Xie, Hao; Ping, Hang; Xu, Xiao Mei; Li, Jing; Yang, Xiao Yu; Fu, Zheng Yi; Su, Bao Lian.

In: RSC Advances, Vol. 6, No. 64, 2016, p. 59422-59428.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Controlled synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface for high reversible capacity and long-life lithium-ion batteries

AU - Xue, Shuang Hong

AU - Xie, Hao

AU - Ping, Hang

AU - Xu, Xiao Mei

AU - Li, Jing

AU - Yang, Xiao Yu

AU - Fu, Zheng Yi

AU - Su, Bao Lian

PY - 2016

Y1 - 2016

N2 - TiO2 is a promising anode material for lithium-ion batteries. The electrochemical performance of TiO2 can be improved by optimization of nanostructures. The present study was proposed to control the synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface. A recombinant protein INP-SiliSila containing functional domains of silicatein-α and silaffin was constructed and expressed on the E. coli surface. Deposition of the TiO2 precursor was facilitated by INP-SiliSila on the E. coli surface. Upon calcination, TiO2 coating on the E. coli surface transformed to anatase and formed well-defined rod-shaped particles. The electrochemical performance of the as-prepared anatase TiO2 as anode electrodes was improved and better than that of most reported ones. The present study not only provides an organism-based approach for fabricating nanostructured anatase TiO2 with enhanced electrochemical performance, but also opens a new avenue to take advantage of genetically modified bacterial surfaces in the synthesis and structure control of materials.

AB - TiO2 is a promising anode material for lithium-ion batteries. The electrochemical performance of TiO2 can be improved by optimization of nanostructures. The present study was proposed to control the synthesis of mesoporous nanostructured anatase TiO2 on a genetically modified Escherichia coli surface. A recombinant protein INP-SiliSila containing functional domains of silicatein-α and silaffin was constructed and expressed on the E. coli surface. Deposition of the TiO2 precursor was facilitated by INP-SiliSila on the E. coli surface. Upon calcination, TiO2 coating on the E. coli surface transformed to anatase and formed well-defined rod-shaped particles. The electrochemical performance of the as-prepared anatase TiO2 as anode electrodes was improved and better than that of most reported ones. The present study not only provides an organism-based approach for fabricating nanostructured anatase TiO2 with enhanced electrochemical performance, but also opens a new avenue to take advantage of genetically modified bacterial surfaces in the synthesis and structure control of materials.

UR - http://www.scopus.com/inward/record.url?scp=84976354726&partnerID=8YFLogxK

U2 - 10.1039/c6ra09974b

DO - 10.1039/c6ra09974b

M3 - Article

VL - 6

SP - 59422

EP - 59428

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 64

ER -