Imperial College London
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ProfessorBaptisteGault

Faculty of Engineering, Department of Materials

Professor of Atomic-Scale Characterization
 
 
 
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Contact

 

b.gault

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lim:2020:10.1002/anie.201915709,
author = {Lim, J and Kim, S-H and Armengol, RA and Kasian, O and Choi, P-P and Stephenson, LT and Gault, B and Scheu, C},
doi = {10.1002/anie.201915709},
journal = {Angewandte Chemie International Edition},
pages = {5651--5655},
title = {Atomic-scale mapping of impurities in partially reduced hollow TiO2 nanowires},
url = {http://dx.doi.org/10.1002/anie.201915709},
volume = {59},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge in measuring trace amounts of often light elements with sub-nanometer spatial resolution. And yet, these foreign elements (introduced by doping, for example) influence functional properties. We demonstrate how the hydrothermal growth and a partial reduction reaction on hollow TiO2 nanowires leads to the introduction of parts per millions of boron, sodium, and nitrogen. This doping explains the presence of oxygen vacancies and reduced Ti states at the surface, which enhance the functional properties of TiO2. Our results were obtained on model metal oxide nanomaterials and they shed light on a general process that leads to the uncontrolled incorporation of trace impurities in TiO2, thereby, having a strong effect on applications in energy-harvesting.
AU  - Lim,J
AU  - Kim,S-H
AU  - Armengol,RA
AU  - Kasian,O
AU  - Choi,P-P
AU  - Stephenson,LT
AU  - Gault,B
AU  - Scheu,C
DO  - 10.1002/anie.201915709
EP  - 5655
PY  - 2020///
SN  - 1433-7851
SP  - 5651
TI  - Atomic-scale mapping of impurities in partially reduced hollow TiO2 nanowires
T2  - Angewandte Chemie International Edition
UR  - http://dx.doi.org/10.1002/anie.201915709
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000511482400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://onlinelibrary.wiley.com/doi/10.1002/anie.201915709
UR  - http://hdl.handle.net/10044/1/104269
VL  - 59
ER  -
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