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Title: Recent progress in characterization of the core–shell structure of black titania

Abstract

The recent observation of spectacular photocatalytic activity enhancements generated tremendous interest in the synthesis, properties, and potential applications of black titania. Most black titania are core-shell structures consisting of a perfect crystalline core surrounded by a defective surface shell. Because the properties are attributed to the defective shell it is particularly critical, but very challenging to obtain atomic structure information of the core, the shell, and the core-shell relationship on a single particle level. While the role of various synthesis approaches for producing black titania with different properties has been extensively reviewed, this review focuses on understanding the structure-functionality relationship in black titania on a single particle level. We begin by introducing the crystal and electronic band structure of different TiO 2 phases, followed by discussion of particle size effects, the origin of lattice distortions, and phase control by synthesis, and concluding with discussion of crystalline order formation and evolution creating the defective shell.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [2]; ORCiD logo [4]
  1. Univ. of Tennessee, Knoxville, TN (United States); Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1542222
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 34; Journal Issue: 07; Journal ID: ISSN 0884-2914
Publisher:
Materials Research Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; black titania; core-shell structure; atomic structure; lattice distortion; oxygen vacancies; interstitial Ti3+; nanoparticles; size; phase

Citation Formats

Tian, Mengkun, Liu, Chenze, Ge, Jingxuan, Geohegan, David, Duscher, Gerd, and Eres, Gyula. Recent progress in characterization of the core–shell structure of black titania. United States: N. p., 2019. Web. doi:10.1557/jmr.2019.46.
Tian, Mengkun, Liu, Chenze, Ge, Jingxuan, Geohegan, David, Duscher, Gerd, & Eres, Gyula. Recent progress in characterization of the core–shell structure of black titania. United States. doi:10.1557/jmr.2019.46.
Tian, Mengkun, Liu, Chenze, Ge, Jingxuan, Geohegan, David, Duscher, Gerd, and Eres, Gyula. Mon . "Recent progress in characterization of the core–shell structure of black titania". United States. doi:10.1557/jmr.2019.46.
@article{osti_1542222,
title = {Recent progress in characterization of the core–shell structure of black titania},
author = {Tian, Mengkun and Liu, Chenze and Ge, Jingxuan and Geohegan, David and Duscher, Gerd and Eres, Gyula},
abstractNote = {The recent observation of spectacular photocatalytic activity enhancements generated tremendous interest in the synthesis, properties, and potential applications of black titania. Most black titania are core-shell structures consisting of a perfect crystalline core surrounded by a defective surface shell. Because the properties are attributed to the defective shell it is particularly critical, but very challenging to obtain atomic structure information of the core, the shell, and the core-shell relationship on a single particle level. While the role of various synthesis approaches for producing black titania with different properties has been extensively reviewed, this review focuses on understanding the structure-functionality relationship in black titania on a single particle level. We begin by introducing the crystal and electronic band structure of different TiO2 phases, followed by discussion of particle size effects, the origin of lattice distortions, and phase control by synthesis, and concluding with discussion of crystalline order formation and evolution creating the defective shell.},
doi = {10.1557/jmr.2019.46},
journal = {Journal of Materials Research},
number = 07,
volume = 34,
place = {United States},
year = {2019},
month = {4}
}

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  • Journal of Solid State Chemistry, Vol. 113, Issue 1
  • DOI: 10.1006/jssc.1994.1337

A new sight on hydrogenation of F and N-F doped {001} facets dominated anatase TiO2 for efficient visible light photocatalyst
journal, October 2012


Raman spectroscopy characterization of titania nanoparticles produced by flame pyrolysis: The influence of size and stoichiometry
journal, October 2005

  • Li Bassi, A.; Cattaneo, D.; Russo, V.
  • Journal of Applied Physics, Vol. 98, Issue 7
  • DOI: 10.1063/1.2061894

Microscopic origin of lattice contraction and expansion in undoped rutile TiO 2 nanostructures
journal, May 2014