Interaction of hydrazine and ammonia with TiO 2

Chih Chung Chuang, Jau Shiang Shiu, Jong-Liang Lin

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Adsorption and reaction of N 2 H 4 and NH 3 on powdered TiO 2 have been studied by Fourier-transformed infrared spectroscopy. N 2 H 4 decomposes on the surface to form NH 3 and surface hydroxy groups at temperatures higher than ~ 150°C. Based on these findings, a N 2 H 4 reaction pathway on TiO 2 is established to be N 2 H 4 → 2NH 2 → NH + NH 3 and NH + O((1)) → N + OH((ads)). NH 3 decomposes on the surface and forms adsorbed azide N(3(ads)) species at temperatures higher than ~ 350°C. Photooxidation of NH 3 and ND 3 is investigated as well and the mechanism is discussed in terms of the NH 2 reaction pathway and recent reports for the reactions between NH(x) and NO(x) (x = 1-2) in the gas phase.

Original languageEnglish
Pages (from-to)2629-2633
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume2
Issue number11
DOIs
Publication statusPublished - 2000 Jun 1

Fingerprint

hydrazine
hydrazines
Ammonia
ammonia
Photooxidation
Azides
interactions
photooxidation
Infrared spectroscopy
Gases
Adsorption
Temperature
infrared spectroscopy
vapor phases
adsorption

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Chuang, Chih Chung ; Shiu, Jau Shiang ; Lin, Jong-Liang. / Interaction of hydrazine and ammonia with TiO 2 In: Physical Chemistry Chemical Physics. 2000 ; Vol. 2, No. 11. pp. 2629-2633.
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Interaction of hydrazine and ammonia with TiO 2 . / Chuang, Chih Chung; Shiu, Jau Shiang; Lin, Jong-Liang.

In: Physical Chemistry Chemical Physics, Vol. 2, No. 11, 01.06.2000, p. 2629-2633.

Research output: Contribution to journalArticle

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