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Title: Al-doped TiO{sub 2} mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol

Abstract

Pd catalysts supported on Al-doped TiO{sub 2} mesoporous materials were evaluated in complete oxidation of ethanol. The catalysts synthesized by wet impregnation based on evaporation-induced self-assembly were characterized by X-ray diffraction, measurement of pore structure, XPS, FT-IR, temperature programmed reduction and TEM. Characteristic results showed that the aluminium was doped into the lattice of mesoporous anatase TiO{sub 2} to form Al-O-Ti defect structure. Catalytic results revealed that Al-doped catalysts were much more active than the pristine one, especially at low temperature (≤200 °C). This should be ascribed to the introduction of aluminium ions that suppressed the strong metal-support interaction and increased the active sites of Pd oxides, enhanced the stabilized anatase TiO{sub 2}, improved well dispersed high valence palladium species with high reducibility and enriched chemisorption oxygen. - Graphical abstract: Al-doped Pd/TiO{sub 2} exhibited optimal catalytic performance for ethanol oxidation and CO{sub 2} yield by the suppression of SMSI. - Highlights: • Palladium catalysts supported on Al-doped TiO{sub 2} mesoporous materials were studied. • The introduction of Al can enhance anatase stabilization and increase defect TiO{sub 2}. • The Pd/Al-TiO{sub 2} catalysts show higher ethanol conversion and CO{sub 2} yield than Pd/TiO{sub 2}. • The influence of Al on SMSImore » and catalytic performance were evaluated by TPR and XPS.« less

Authors:
; ; ; ; ; ;
Publication Date:
OSTI Identifier:
22658247
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 248; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM IONS; CARBON DIOXIDE; CATALYSTS; DOPED MATERIALS; ETHANOL; EXPERIMENTAL DATA; FOURIER TRANSFORMATION; INFRARED SPECTRA; NANOSTRUCTURES; OXIDATION; PORE STRUCTURE; TEMPERATURE RANGE 0065-0273 K; TITANIUM OXIDES; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Zhu, Jing, E-mail: mlczjsls123@163.com, Mu, Wentao, E-mail: mwt15035687833@163.com, Su, Liqing, E-mail: suliqing0163@163.com, Li, Xingying, E-mail: lixingying0479@link.tyut.edu.cn, Guo, Yuyu, E-mail: guoyuyu0455@link.tyut.edu.cn, Zhang, Shen, E-mail: zhangshen0472@link.tyut.edu.cn, and Li, Zhe, E-mail: lizhe@tyut.edu.cn. Al-doped TiO{sub 2} mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol. United States: N. p., 2017. Web. doi:10.1016/J.JSSC.2017.01.028.
Zhu, Jing, E-mail: mlczjsls123@163.com, Mu, Wentao, E-mail: mwt15035687833@163.com, Su, Liqing, E-mail: suliqing0163@163.com, Li, Xingying, E-mail: lixingying0479@link.tyut.edu.cn, Guo, Yuyu, E-mail: guoyuyu0455@link.tyut.edu.cn, Zhang, Shen, E-mail: zhangshen0472@link.tyut.edu.cn, & Li, Zhe, E-mail: lizhe@tyut.edu.cn. Al-doped TiO{sub 2} mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol. United States. doi:10.1016/J.JSSC.2017.01.028.
Zhu, Jing, E-mail: mlczjsls123@163.com, Mu, Wentao, E-mail: mwt15035687833@163.com, Su, Liqing, E-mail: suliqing0163@163.com, Li, Xingying, E-mail: lixingying0479@link.tyut.edu.cn, Guo, Yuyu, E-mail: guoyuyu0455@link.tyut.edu.cn, Zhang, Shen, E-mail: zhangshen0472@link.tyut.edu.cn, and Li, Zhe, E-mail: lizhe@tyut.edu.cn. Sat . "Al-doped TiO{sub 2} mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol". United States. doi:10.1016/J.JSSC.2017.01.028.
@article{osti_22658247,
title = {Al-doped TiO{sub 2} mesoporous material supported Pd with enhanced catalytic activity for complete oxidation of ethanol},
author = {Zhu, Jing, E-mail: mlczjsls123@163.com and Mu, Wentao, E-mail: mwt15035687833@163.com and Su, Liqing, E-mail: suliqing0163@163.com and Li, Xingying, E-mail: lixingying0479@link.tyut.edu.cn and Guo, Yuyu, E-mail: guoyuyu0455@link.tyut.edu.cn and Zhang, Shen, E-mail: zhangshen0472@link.tyut.edu.cn and Li, Zhe, E-mail: lizhe@tyut.edu.cn},
abstractNote = {Pd catalysts supported on Al-doped TiO{sub 2} mesoporous materials were evaluated in complete oxidation of ethanol. The catalysts synthesized by wet impregnation based on evaporation-induced self-assembly were characterized by X-ray diffraction, measurement of pore structure, XPS, FT-IR, temperature programmed reduction and TEM. Characteristic results showed that the aluminium was doped into the lattice of mesoporous anatase TiO{sub 2} to form Al-O-Ti defect structure. Catalytic results revealed that Al-doped catalysts were much more active than the pristine one, especially at low temperature (≤200 °C). This should be ascribed to the introduction of aluminium ions that suppressed the strong metal-support interaction and increased the active sites of Pd oxides, enhanced the stabilized anatase TiO{sub 2}, improved well dispersed high valence palladium species with high reducibility and enriched chemisorption oxygen. - Graphical abstract: Al-doped Pd/TiO{sub 2} exhibited optimal catalytic performance for ethanol oxidation and CO{sub 2} yield by the suppression of SMSI. - Highlights: • Palladium catalysts supported on Al-doped TiO{sub 2} mesoporous materials were studied. • The introduction of Al can enhance anatase stabilization and increase defect TiO{sub 2}. • The Pd/Al-TiO{sub 2} catalysts show higher ethanol conversion and CO{sub 2} yield than Pd/TiO{sub 2}. • The influence of Al on SMSI and catalytic performance were evaluated by TPR and XPS.},
doi = {10.1016/J.JSSC.2017.01.028},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 248,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2017},
month = {Sat Apr 15 00:00:00 EDT 2017}
}