In situ FTIR studies of NO reduction over carbon nanotubes (CNTs) and 1 wt.% Pd/CNTs

S. J. Wang, W. X. Zhu, D. W. Liao, C. F. Ng, Chak Tong AU*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

32 Citations (Scopus)

Abstract

After treated in a flow of H2 at 500 °C for 60 min, CNTs showed moderate sign of hydrogenation. Intense hydrogenation of CNTs occurred under similar treatment when 1wt.% of Pd was supported on CNTs. In situ FTIR investigation of NO (5000 ppm) interaction with hydrogenated CNTs showed the gradual removal of hydrogen from the sample. Surface adspecies such as OH, NO, NO2, and NO3 were observed over the hydrogenated 1 wt.% Pd/CNTs sample after the sample was exposed to pure NO at 500 °C for 15min. The results suggest that the Pd metal catalyzes the hydrogenation of CNTs, and NO reduction occurs over the hydrogenated CNTs.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalCatalysis Today
Volume93-95
DOIs
Publication statusPublished - 1 Sep 2004
EventSelections from the Presentations of the 3rd Asia-Pacific Congress - Dalian, China
Duration: 12 Oct 200312 Oct 2003

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)

User-Defined Keywords

  • 1 wt.% Pd/CNTs
  • CNTs hydrogenation
  • NO reduction

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