Water-induced morphology changes in BaO/gamma-Al2O3 NOx storage materials |
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| Authors: | Szanyi János Kwak Ja Hun Kim Do Heui Wang Xianqin Hanson Jonathan Chimentao Ricardo J Peden Charles H F |
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| Institution: | Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, WA 99352, USA. janos.szanyi@pnl.gov |
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| Abstract: | Exposure of NO(2)-saturated BaO/gamma-Al(2)O(3) NO(x) storage materials to H(2)O vapour results in the conversion of surface nitrates to Ba(NO(3))(2) crystallites, causing dramatic morphological changes in the Ba-containing phase, demonstrating a role for water in affecting the NO(x) storage/reduction properties of these materials. |
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