Issue 9, 2007
From the journal:

Chemical Communications

Water-induced morphology changes in BaO/γ-Al2O3 NOx storage materials

János Szanyi,*a   Ja Hun Kwak,a   Do Heui Kim,a   Xianqin Wang,a   Jonathan Hanson,b   Ricardo J. Chimentaoc  and  Charles H. F. Pedena  

* Corresponding authors

a Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, WA, USA
E-mail: janos.szanyi@pnl.gov
Fax: 509-376-5106
Tel: 509-376-6466

b Department of Chemistry, Brookhaven National Laboratory, Upton, NY, USA

c Department d'Enginyeria Quimica, Universitat Rovira i Virgili, Tarragona, Spain

Abstract

Exposure of NO2-saturated BaO/γ-Al2O3 NOx storage materials to H2O vapour results in the conversion of surface nitrates to Ba(NO3)2 crystallites, causing dramatic morphological changes in the Ba-containing phase, demonstrating a role for water in affecting the NOx storage/reduction properties of these materials.

Graphical abstract: Water-induced morphology changes in BaO/γ-Al2O3 NOx storage materials

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Article information

DOI
https://doi.org/10.1039/B613674E
Article type
Communication
Submitted
20 Sep 2006
Accepted
28 Nov 2006
First published
12 Dec 2006

Chem. Commun., 2007, 984-986

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Water-induced morphology changes in BaO/γ-Al2O3 NOx storage materials

J. Szanyi, J. H. Kwak, D. H. Kim, X. Wang, J. Hanson, R. J. Chimentao and C. H. F. Peden, Chem. Commun., 2007, 984 DOI: 10.1039/B613674E

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