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Title: High-yield synthesis of SnO{sub 2} nanobelts by water-assisted chemical vapor deposition for sensor applications

Abstract

Highlights: ► The well crystalline and structurally uniform SnO{sub 2} nanobelts were prepared. ► Au-modified small Sn particle was used as source material to ensure the high yield. ► The SnO{sub 2} nanobelt exhibited better gas sensing property to NO{sub 2} than nanoparticle. ► The SnO{sub 2} nanobelt showed obvious sensing selectivity towards NO{sub 2} over CO and CH{sub 4}. -- Abstract: Well-crystallized one-dimensional (1D) SnO{sub 2} nanobelts were in situ prepared using a simple water-assisted chemical vapor deposition (CVD) method. The small Sn particles with Au-modifications were used as source materials instead of big size Sn grains to ensure the high yield of SnO{sub 2} belts. The Au layer was modified on the small Sn particles by treating Sn powders in HAuCl{sub 4} solution combined with the UV irradiation. The as-prepared SnO{sub 2} nanobelts were characterized by SEM, HRTEM, XRD, EDS and XPS. These results indicate that the growth temperature plays an important role in controlling the length-to-width ratio of nanobelts. The length-to-width ratio decreases with the growth temperature from 850 °C to 1000 °C. The nanobelts prepared at 850 °C shows a single-crystalline tetragonal rutile phase with a high length-to-width ratio (approximately tens of microns in length andmore » 40–70 nm in width). However, below 850 °C, nanobelts cannot be formed. The as-prepared nanobelts exhibited excellent sensing properties compared with SnO{sub 2} nanoparticles and high sensing selectivity towards NO{sub 2}. The high sensing selectivity to NO{sub 2} is attributed to the oxygen vacancies presenting in the as-prepared nanobelts.« less

Authors:
 [1];  [1];  [2];  [2]; ; ;  [3];  [4]
  1. Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387 (China)
  2. (China)
  3. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 (China)
  4. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
22215562
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; CARBON MONOXIDE; CHEMICAL VAPOR DEPOSITION; IRRADIATION; LAYERS; MONOCRYSTALS; NANOSTRUCTURES; NITROGEN DIOXIDE; POWDERS; RUTILE; SCANNING ELECTRON MICROSCOPY; SEMICONDUCTOR MATERIALS; SENSORS; SYNTHESIS; TIN OXIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Zhang, Jing Bo, E-mail: jbzhang@iccas.ac.cn, Li, Xiao Ning, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, Bai, Shou Li, Luo, Rui Xian, Chen, Ai Fan, and Lin, Yuan. High-yield synthesis of SnO{sub 2} nanobelts by water-assisted chemical vapor deposition for sensor applications. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.023.
Zhang, Jing Bo, E-mail: jbzhang@iccas.ac.cn, Li, Xiao Ning, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, Bai, Shou Li, Luo, Rui Xian, Chen, Ai Fan, & Lin, Yuan. High-yield synthesis of SnO{sub 2} nanobelts by water-assisted chemical vapor deposition for sensor applications. United States. doi:10.1016/J.MATERRESBULL.2012.07.023.
Zhang, Jing Bo, E-mail: jbzhang@iccas.ac.cn, Li, Xiao Ning, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, Bai, Shou Li, Luo, Rui Xian, Chen, Ai Fan, and Lin, Yuan. Thu . "High-yield synthesis of SnO{sub 2} nanobelts by water-assisted chemical vapor deposition for sensor applications". United States. doi:10.1016/J.MATERRESBULL.2012.07.023.
@article{osti_22215562,
title = {High-yield synthesis of SnO{sub 2} nanobelts by water-assisted chemical vapor deposition for sensor applications},
author = {Zhang, Jing Bo, E-mail: jbzhang@iccas.ac.cn and Li, Xiao Ning and State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 and Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 and Bai, Shou Li and Luo, Rui Xian and Chen, Ai Fan and Lin, Yuan},
abstractNote = {Highlights: ► The well crystalline and structurally uniform SnO{sub 2} nanobelts were prepared. ► Au-modified small Sn particle was used as source material to ensure the high yield. ► The SnO{sub 2} nanobelt exhibited better gas sensing property to NO{sub 2} than nanoparticle. ► The SnO{sub 2} nanobelt showed obvious sensing selectivity towards NO{sub 2} over CO and CH{sub 4}. -- Abstract: Well-crystallized one-dimensional (1D) SnO{sub 2} nanobelts were in situ prepared using a simple water-assisted chemical vapor deposition (CVD) method. The small Sn particles with Au-modifications were used as source materials instead of big size Sn grains to ensure the high yield of SnO{sub 2} belts. The Au layer was modified on the small Sn particles by treating Sn powders in HAuCl{sub 4} solution combined with the UV irradiation. The as-prepared SnO{sub 2} nanobelts were characterized by SEM, HRTEM, XRD, EDS and XPS. These results indicate that the growth temperature plays an important role in controlling the length-to-width ratio of nanobelts. The length-to-width ratio decreases with the growth temperature from 850 °C to 1000 °C. The nanobelts prepared at 850 °C shows a single-crystalline tetragonal rutile phase with a high length-to-width ratio (approximately tens of microns in length and 40–70 nm in width). However, below 850 °C, nanobelts cannot be formed. The as-prepared nanobelts exhibited excellent sensing properties compared with SnO{sub 2} nanoparticles and high sensing selectivity towards NO{sub 2}. The high sensing selectivity to NO{sub 2} is attributed to the oxygen vacancies presenting in the as-prepared nanobelts.},
doi = {10.1016/J.MATERRESBULL.2012.07.023},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}