Decomposition of no on the alkalized pt/al2o3

Y. J. Huang; H. P. Wang; S. H. Liu; C. T. Yeh; B. C. Chang

doi:10.1080/09593330309385570

Decomposition of no on the alkalized pt/al₂o₃

Y. J. Huang, H. P. Wang, S. H. Liu, C. T. Yeh, B. C. Chang

Department of Environmental Engineering

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

2 Citations (Scopus)

Abstract

Catalytic decomposition of NO on platinum catalysts at 873–1173 K was investigated in the present work. The yield of N₂ in the NO decomposition process was significantly increased on the alkalizing Pt/Al₂O₃ catalyst. The enhancement may be attributed to a trap of additional NO molecules by basic sites of the alkalized catalyst. The interstitially adsorbed species (NaOH(NO)Pt) might increase the NO adsorption strength during the catalytic NO reduction process. Pt on the high acidity HY was also active for catalytic decomposition of NO. Nevertheless, its activity decreased at higher temperatures (>1073 K) because of the distortion of the HY framework. Combined results of XPS (X-ray photoelectron spectra) and TPR (temperature programmed reduction) showed that PtO and PtO₂ were the main active species on the alkalized A1₂O₃ and HY during NO reduction.

Original language	English
Pages (from-to)	377-382
Number of pages	6
Journal	Environmental Technology (United Kingdom)
Volume	24
Issue number	3
DOIs	https://doi.org/10.1080/09593330309385570
Publication status	Published - 2003 Mar 1

All Science Journal Classification (ASJC) codes

Environmental Chemistry
Water Science and Technology
Waste Management and Disposal

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title = "Decomposition of no on the alkalized pt/al2o3",

abstract = "Catalytic decomposition of NO on platinum catalysts at 873–1173 K was investigated in the present work. The yield of N2 in the NO decomposition process was significantly increased on the alkalizing Pt/Al2O3 catalyst. The enhancement may be attributed to a trap of additional NO molecules by basic sites of the alkalized catalyst. The interstitially adsorbed species (NaOH(NO)Pt) might increase the NO adsorption strength during the catalytic NO reduction process. Pt on the high acidity HY was also active for catalytic decomposition of NO. Nevertheless, its activity decreased at higher temperatures (>1073 K) because of the distortion of the HY framework. Combined results of XPS (X-ray photoelectron spectra) and TPR (temperature programmed reduction) showed that PtO and PtO2 were the main active species on the alkalized A12O3 and HY during NO reduction.",

author = "Huang, {Y. J.} and Wang, {H. P.} and Liu, {S. H.} and Yeh, {C. T.} and Chang, {B. C.}",

note = "Funding Information: Thefinancial support of the National Science Council of Taiwanisgratefully acknowledged.",

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T1 - Decomposition of no on the alkalized pt/al2o3

AU - Huang, Y. J.

AU - Wang, H. P.

AU - Liu, S. H.

AU - Yeh, C. T.

AU - Chang, B. C.

N1 - Funding Information: Thefinancial support of the National Science Council of Taiwanisgratefully acknowledged.

PY - 2003/3/1

Y1 - 2003/3/1

N2 - Catalytic decomposition of NO on platinum catalysts at 873–1173 K was investigated in the present work. The yield of N2 in the NO decomposition process was significantly increased on the alkalizing Pt/Al2O3 catalyst. The enhancement may be attributed to a trap of additional NO molecules by basic sites of the alkalized catalyst. The interstitially adsorbed species (NaOH(NO)Pt) might increase the NO adsorption strength during the catalytic NO reduction process. Pt on the high acidity HY was also active for catalytic decomposition of NO. Nevertheless, its activity decreased at higher temperatures (>1073 K) because of the distortion of the HY framework. Combined results of XPS (X-ray photoelectron spectra) and TPR (temperature programmed reduction) showed that PtO and PtO2 were the main active species on the alkalized A12O3 and HY during NO reduction.

AB - Catalytic decomposition of NO on platinum catalysts at 873–1173 K was investigated in the present work. The yield of N2 in the NO decomposition process was significantly increased on the alkalizing Pt/Al2O3 catalyst. The enhancement may be attributed to a trap of additional NO molecules by basic sites of the alkalized catalyst. The interstitially adsorbed species (NaOH(NO)Pt) might increase the NO adsorption strength during the catalytic NO reduction process. Pt on the high acidity HY was also active for catalytic decomposition of NO. Nevertheless, its activity decreased at higher temperatures (>1073 K) because of the distortion of the HY framework. Combined results of XPS (X-ray photoelectron spectra) and TPR (temperature programmed reduction) showed that PtO and PtO2 were the main active species on the alkalized A12O3 and HY during NO reduction.

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ER -

Decomposition of no on the alkalized pt/al₂o₃

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