Superior catalysts for selective catalytic reduction of nitric oxide. Annual technical report, September 30, 1993--September 29, 1994
A delaminated Fe{sub 2}O{sub 3}-pillared clay catalyst was prepared for the selective catalytic reduction (SCR) of NO by NH{sub 3} at above 300{degrees}C. The delaminated pillard clay was characterized by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectroscopy) chemical analysis, XRD (X-ray diffraction) structure and line broadening analyses, micropore size probing, and Moessbauer analysis. These analyses showed that the catalyst contained fragmented Fe{sub 2}O{sub 3}-pillared clay forming {open_quotes}house-of-cards{close_quotes} structure with dispersed Fe{sub 2}O{sub 3} particles approximately 170 {angstrom} in size. The SCR activity of the delaminated pillard clay was higher than the commercial-type V{sub 2}O{sub 5} + WO{sub 3}/TiO{sub 2} catalyst, and also higher than the undelaminated pillard clay and supported Fe{sub 2}O{sub 3} catalysts, under conditions with SO{sub 2}. Infrared measurements of adsorbed NH{sub 3} showed strong Bronsted acidity which was caused possibly by interactions between Fe{sub 2}O{sub 3} and clay.
- Research Organization:
- State Univ. of New York, Stony Brook, NY (United States). Research Foundation
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-93PC93217
- OSTI ID:
- 10122507
- Report Number(s):
- DOE/PC/93217--T4; ON: DE95007903
- Country of Publication:
- United States
- Language:
- English
Similar Records
Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 January 1994--31 March 1994
Delaminated Fe{sub 2}O{sub 3}-pillared clay: Its preparation, characterization, and activities for selective catalytic reduction of NO by NH{sub 3}
Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 April--30 June 1994
Technical Report
·
Sun May 01 00:00:00 EDT 1994
·
OSTI ID:10150062
Delaminated Fe{sub 2}O{sub 3}-pillared clay: Its preparation, characterization, and activities for selective catalytic reduction of NO by NH{sub 3}
Journal Article
·
Sat Dec 31 23:00:00 EST 1994
· Journal of Catalysis
·
OSTI ID:75801
Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 April--30 June 1994
Technical Report
·
Thu Sep 01 00:00:00 EDT 1994
·
OSTI ID:10182972
Related Subjects
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33 ADVANCED PROPULSION SYSTEMS
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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AMMONIA
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CATALYTIC EFFECTS
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010800
33 ADVANCED PROPULSION SYSTEMS
330701
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
AMMONIA
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
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NITRIC OXIDE
NITROGEN OXIDES
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SELECTIVE CATALYTIC REDUCTION
STRUCTURAL CHEMICAL ANALYSIS
WASTE MANAGEMENT