Catalysis Letters

, Volume 141, Issue 6, pp 854–859 | Cite as

TiO2/Ni Inverse-Catalysts Prepared by Atomic Layer Deposition (ALD)

  • Dong Wun Kim
  • Kwang-Dae Kim
  • Hyun Ook Seo
  • Nilay Kumar Dey
  • Myoung Joo Kim
  • Young Dok Kim
  • Dong Chan Lim
  • Kyu Hwan Lee
Article
First Online:
Received:
Accepted:

Abstract

Atomic layer deposition (ALD) was used to deposit TiO2 on Ni particles, and the catalytic activity of Ni for CO2 reforming of methane (CRM) was evaluated. In the presence of TiO2 islands on Ni surfaces, the onset temperature of the CRM reaction was lower than that of bare Ni. During the CRM reaction, carbon was deposited on the surface of bare Ni, which reduced the catalytic activity of the surface with time, and TiO2 islands were able to remove carbon deposits from the surface. When the Ni surface was completely covered with TiO2, the catalytic activity disappeared, demonstrating that tuning of the TiO2 coverage on Ni is important to maximize the activity of the CRM reaction.

Graphical Abstract

Keywords

Metal Ni Metal-oxide TiO2 CO2 
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Notes

Acknowledgement

This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.

Supplementary material

10562_2011_601_MOESM1_ESM.tif (309 kb)
Supplementary material 1 (TIFF 308 kb)

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Dong Wun Kim
    • 1
  • Kwang-Dae Kim
    • 1
  • Hyun Ook Seo
    • 1
  • Nilay Kumar Dey
    • 1
  • Myoung Joo Kim
    • 1
  • Young Dok Kim
    • 1
  • Dong Chan Lim
    • 2
  • Kyu Hwan Lee
    • 2
  1. 1.Department of ChemistrySungkyunkwan UniversitySuwonKorea
  2. 2.Materials Processing DivisionKorea Institute of Materials ScienceChangwonKorea

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