The effect of H-2 and the presence of hot-O-(ads) during the decomposition of N2O on platinum

Robbie Burch; S.T. Daniells; John Breen; Peijun Hu

The effect of H-2 and the presence of hot-O-(ads) during the decomposition of N2O on platinum

Robbie Burch
, S.T. Daniells
, John Breen
, Peijun Hu

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The decomposition of N2O was studied using a silica-supported Pt catalyst. The catalyst was found to exhibit short-lived activity at low temperatures to yield N-2 and O-(ads), the latter remained adsorbed on the surface and poisoned the active sites. Creation of hot-O-(ads) atoms during N2O decomposition is proposed to allow O-2 desorption at intermediate temperatures. Inclusion of H-2 as a reducing agent greatly enhanced the activity and suppressed low temperature deactivation. Simultaneous and sequential pulsing of N2O and H-2 showed that H-2 inclusion with the N2O gas stream produced the greatest activity. A mechanism involving H-(ads) addition to

Original language	English
Pages (from-to)	103-108
Number of pages	6
Journal	Catalysis Letters
Volume	94
Publication status	Published - 2004

Cite this

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title = "The effect of H-2 and the presence of hot-O-(ads) during the decomposition of N2O on platinum",

abstract = "The decomposition of N2O was studied using a silica-supported Pt catalyst. The catalyst was found to exhibit short-lived activity at low temperatures to yield N-2 and O-(ads), the latter remained adsorbed on the surface and poisoned the active sites. Creation of hot-O-(ads) atoms during N2O decomposition is proposed to allow O-2 desorption at intermediate temperatures. Inclusion of H-2 as a reducing agent greatly enhanced the activity and suppressed low temperature deactivation. Simultaneous and sequential pulsing of N2O and H-2 showed that H-2 inclusion with the N2O gas stream produced the greatest activity. A mechanism involving H-(ads) addition to",

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language = "English",

volume = "94",

pages = "103--108",

journal = "Catalysis Letters",

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T1 - The effect of H-2 and the presence of hot-O-(ads) during the decomposition of N2O on platinum

AU - Burch, Robbie

AU - Daniells, S.T.

AU - Breen, John

AU - Hu, Peijun

PY - 2004

Y1 - 2004

N2 - The decomposition of N2O was studied using a silica-supported Pt catalyst. The catalyst was found to exhibit short-lived activity at low temperatures to yield N-2 and O-(ads), the latter remained adsorbed on the surface and poisoned the active sites. Creation of hot-O-(ads) atoms during N2O decomposition is proposed to allow O-2 desorption at intermediate temperatures. Inclusion of H-2 as a reducing agent greatly enhanced the activity and suppressed low temperature deactivation. Simultaneous and sequential pulsing of N2O and H-2 showed that H-2 inclusion with the N2O gas stream produced the greatest activity. A mechanism involving H-(ads) addition to

AB - The decomposition of N2O was studied using a silica-supported Pt catalyst. The catalyst was found to exhibit short-lived activity at low temperatures to yield N-2 and O-(ads), the latter remained adsorbed on the surface and poisoned the active sites. Creation of hot-O-(ads) atoms during N2O decomposition is proposed to allow O-2 desorption at intermediate temperatures. Inclusion of H-2 as a reducing agent greatly enhanced the activity and suppressed low temperature deactivation. Simultaneous and sequential pulsing of N2O and H-2 showed that H-2 inclusion with the N2O gas stream produced the greatest activity. A mechanism involving H-(ads) addition to

M3 - Article

VL - 94

SP - 103

EP - 108

JO - Catalysis Letters

JF - Catalysis Letters

ER -

The effect of H-2 and the presence of hot-O-(ads) during the decomposition of N2O on platinum

Abstract

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