Au/M-TiO2 nanotube catalysts (M=Ce, Ga, Co, Y): preparation, characterization and their catalytic activity for CO oxidation

Au/M-TiO2 nanotube catalysts (M=Ce, Ga, Co, Y): preparation, characterization and their catalytic... The M-modified TiO2 nanotubes (NTs) (M = Ce, Ga, Co, Y, 2.0 wt%) were synthesized by combining sol-gel method with hydrothermal treatment, based on which gold was loaded by the deposition–precipitation approach. These catalysts were loaded with 1.5 wt% gold and calcined at 300 °C, and their catalytic performance was compared with Au/TiO2 NTs in CO oxidation. TEM results manifested Au/M-TiO2 NTs (M = Ce, Ga, Co, Y) had smaller gold nanoparticles than Au/TiO2 NTs. Patterns of XPS revealed the presence of the strong interaction between gold and support in Au/M-TiO2 NTs (M = Ce, Ga, Co, Y). Ce4+, Ga3+, Co2+, and Y3+ ions were present as CeO2, Ga2O3, CoO, and Y2O3 in Au/M-TiO2 NTs (M = Ce, Ga, Co, Y), respectively. Based on O2-TPD studies, Au/M-TiO2 NTs (M = Ce, Ga, Co, Y) provided new O2 adsorption sites for the adsorption and activation of oxygen in CO oxidation. M (M = Ce, Ga, Co, Y) modifying performed the positive effect on CO oxidation activity and Au/Y-TiO2 NTs showed the highest activity among these catalysts. Additionally, Au/Y-TiO2 NTs also performed excellent high-temperature stability. It was likely that the strong interaction between gold and support created the small size of gold nanoparticles, large O2 adsorption and plenty of defects, thereby enhancing the catalytic activity of Au/M-TiO2 NTs (M = Ce, Ga, Co, Y). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Sol-Gel Science and Technology Springer Journals

Au/M-TiO2 nanotube catalysts (M=Ce, Ga, Co, Y): preparation, characterization and their catalytic activity for CO oxidation

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Ceramics, Glass, Composites, Natural Materials; Inorganic Chemistry; Optical and Electronic Materials; Nanotechnology
ISSN
0928-0707
eISSN
1573-4846
D.O.I.
10.1007/s10971-018-4691-1
Publisher site
See Article on Publisher Site

Abstract

The M-modified TiO2 nanotubes (NTs) (M = Ce, Ga, Co, Y, 2.0 wt%) were synthesized by combining sol-gel method with hydrothermal treatment, based on which gold was loaded by the deposition–precipitation approach. These catalysts were loaded with 1.5 wt% gold and calcined at 300 °C, and their catalytic performance was compared with Au/TiO2 NTs in CO oxidation. TEM results manifested Au/M-TiO2 NTs (M = Ce, Ga, Co, Y) had smaller gold nanoparticles than Au/TiO2 NTs. Patterns of XPS revealed the presence of the strong interaction between gold and support in Au/M-TiO2 NTs (M = Ce, Ga, Co, Y). Ce4+, Ga3+, Co2+, and Y3+ ions were present as CeO2, Ga2O3, CoO, and Y2O3 in Au/M-TiO2 NTs (M = Ce, Ga, Co, Y), respectively. Based on O2-TPD studies, Au/M-TiO2 NTs (M = Ce, Ga, Co, Y) provided new O2 adsorption sites for the adsorption and activation of oxygen in CO oxidation. M (M = Ce, Ga, Co, Y) modifying performed the positive effect on CO oxidation activity and Au/Y-TiO2 NTs showed the highest activity among these catalysts. Additionally, Au/Y-TiO2 NTs also performed excellent high-temperature stability. It was likely that the strong interaction between gold and support created the small size of gold nanoparticles, large O2 adsorption and plenty of defects, thereby enhancing the catalytic activity of Au/M-TiO2 NTs (M = Ce, Ga, Co, Y).

Journal

Journal of Sol-Gel Science and Technology – Springer Journals

Published: May 23, 2018

References

  • Doping effect of Al2O3 and CeO2 on Fe2O3 support for gold catalyst in CO oxidation at low-temperature
    Liu, RH; Gao, NS; Zhen, F; Zhang, YY; Mei, L; Zeng, XW
  • Catalytic performance of gold nanoparticles using different crystallinity HAP as carrier materials
    Wang, JD; Liu, JK; Lu, Y; Hong, DJ; Yang, XH
  • Low temperature CO oxidation over Fe–Co mixed oxide nanocatalysts
    Biabani-Ravandi, A; Rezaei, M
  • Development of novel supported gold catalysts: a materials perspective
    Ma, Z; Dai, S
  • Novel gold catalysts for the oxidation of carbon monoxide at a temperature far below 0 °C
    Haruta, M; Kaboyashi, T; Sano, H; Yamada, N
  • Ultrastable hydroxyapatite/titanium-dioxide-supported gold nanocatalyst with strong metal–support interaction for carbon monoxide oxidation
    Tang, HL; Liu, FL; Wei, JK; Qiao, BT; Zhao, KF; Su, Y; Jin, CZ; Li, L; Liu, JY; Wang, JH; Zhang, T
  • Catalysis by gold
    Bond, GC; Thompson, DT
  • Low temperature CO oxidation over gold supported mesoporous Fe–TiO2
    Parida, KM; Sahu, N; Mohapatra, P; Scurrell, MS
  • Production of hydrogen via partial oxidation of methanol over Au/TiO2 catalysts
    Chang, FW; Yu, HY; Roselin, LS; Yang, HC
  • Gold catalysis in chemical processing
    Hutchings, GJ
  • Au/M x O y /TiO2 catalysts for CO oxidation: promotional effect of main-group, transition, and rare-earth metal oxide additives
    Ma, Z; Overbury, SH; Dai, S
  • Au/Co3O4–TiO2 catalysts for preferential oxidation of CO in H2 stream
    Chen, YW; Chen, HJ; Lee, DS
  • TiO2 nanotubes: synthesis and applications
    Roy, P; Berger, S; Schmuki, P
  • TiO2 nanotubes: recent advances in synthesis and gas sensing properties
    Galstyan, V; Comini, E; Faglia, G; Sberveglieri, G
  • Photocatalytic water splitting towards hydrogen production on gold nanoparticles (NPs) entrapped in TiO2 nanotubes
    Yang, X; Wu, LP; Du, L; Li, XJ
  • Photo-induced reactions in the CO2-methane system on titanate nanotubes modified with Au and Rh nanoparticles
    László, B; Baán, K; Varga, E; Oszkó, A; Erd˝ohelyi, A; Kónya, Z; Kiss, J
  • Reverse bias voltage dependent hydrogen sensing properties on Au–TiO2 nanotubes Schottky barrier diodes
    Ling, YH; Ren, FJ; Feng, JY
  • Characterization and catalytic performance of TiO2 nanotubes-supported gold and copper particles
    Zhu, BL; Guo, Q; Huang, XL; Wang, SR; Zhang, SM; Wu, SH; Huang, WP
  • Titania nanotubes decorated with anatase nanocrystals as support for active and stable gold catalysts for CO oxidation
    Sandoval, A; Zanella, R; Klimova, TE
  • Promoting effects of lanthanum on the catalytic activity of Au/TiO2 nanotubes for CO oxidation
    Zhang, P; Guo, JL; Zhao, P; Zhu, BL; Huang, WP; Shoumin Zhang
  • Preferential oxidation of CO in H2-rich stream over CuO/Ce1−x Ti x O2 catalysts
    Wu, ZW; Zhu, HQ; Qin, ZF; Wang, H; Huang, LC; Wang, JG
  • Low-temperature CO oxidation and long-term stability of Au/In2O3−TiO2 catalysts
    Rodrı´guez-Gonza´lez, V; Zanella, R; Calzada, LA; Gomez, R
  • The influence of Si-modified TiO2 on the activity of Ag/TiO2 in CO oxidation
    Comsup, N; Panpranot, J; Praserthdam, P
  • Characterization and reactivity in CO oxidation of gold nanoparticles supported on TiO2 prepared by deposition-precipitation with NaOH and urea
    Zanella, R; Giorgio, S; Shin, CH; Henry, CR; Louis, C
  • Plasma-activated core-shell gold nanoparticle films with enhanced catalytic properties
    Llorca, J; Casanovas, A; Domı´nhuez, M; Casanova, I; Angurell, I; Seco, M; Rossell, O
  • Gold nanoparticle synthesis in graft copolymer micelles
    Carrot, G; Valmalette, JC; Plummer, CJG; Scholz, SM; Dutta, J; Hofmann, H; Hilborn, JG
  • Increasing the number of oxygen vacancies on TiO2 by doping with iron increases the activity of supported gold for CO oxidation
    Carrettin, S; Hao, Y; Aguilar-Guerrero, V; Gates, BC; Trasobares, S; Calvino, JJ; Corma, A
  • Oxidation-resistant gold-55 clusters
    Boyen, HG; Ka¨stle, G; Weigl, F; Koslowski, B; Dietrich, C; Ziemann, P; Spatz, JP; Riethmu¨ller, S; Hartmann, C; Mo¨ller, M; Schmid, G; Garnier, MG; Oelhafen, P
  • Synthesis and characterization of titania prepared by using a photoassisted sol−gel method
    Liu, HM; Yang, WS; Ma, Y; Cao, Y; Yao, JN; Zhang, J; Hu, TD
  • The roles of hydroxyapatite and FeO x in a Au/FeO x -hydroxyapatite catalyst for CO oxidation
    Zhao, KF; Qiao, BT; Zhang, YJ; Wang, JH
  • Synthesis and structure of nanocrystalline TiO2 with lower band gap showing high photocatalytic activity
    Nagaveni, K; Hegde, MS; Ravishankar, N; Subbanna, GN; Madras, G
  • A new insight into the morphology effect of ceria on CuO/CeO2 catalysts for CO selective oxidation in hydrogen-rich gas
    Guo, XL; Zhou, RX
  • Chemical bonding, optical constants, and electrical resistivity of sputter-deposited gallium oxide thin films
    Ramana, CV; Rubio, EJ; Barraza, CD; Gallardo, AM; McPeak, S; Kotru, S; Grant, JT
  • Photocatalytic hydrogen production over titania modified by gold - Metal (palladium, nickel and cobalt) catalysts
    Barrios, CE; Albiter, E; Gracia y Jimenez, JM; Tiznado, H; Romo-Herrera, J; Zanella, R
  • Interfacial composition and adhesion of sputtered-Y2O3 film on ZnS substrate
    Lei, P; Dai, B; Zhu, JQ; Tian, G; Chen, XT; Wang, YS; Zhu, YK; Liu, G; Yang, L; Han, JC
  • Gold/hydroxyapatite catalysts: Synthesis, characterization and catalytic activity to CO oxidation
    Domı´nguez, MI; Romero-Sarria, F; Centeno, MA; Odriozola, JA
  • Catalytic performance of gold nanoparticles using different crystallinity HAP as carrier materials
    Wang, JD; Liu, JK; Lu, Y; Hong, DJ; Yang, XH
  • Low temperature CO adsorption and oxidation over Au/rare earth-TiO2 nanocatalysts
    Sahu, N; Parida, KM; Tripathi, AK; Kamble, VS
  • Influence of ionic substitution in improving the biological property of carbon nanotubes reinforced hydroxyapatite composite coating on titanium for orthopedic applications
    Gopi, D; Shinyjoy, E; Kavitha, L

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