Selective NOx Reduction During the H2 + NO + O2 Reaction Under Oxygen-Rich Conditions Over Pd/V2O5/Al2O3: Evidence for In Situ Ammonia Generation期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Selective NOx Reduction During the H2 + NO + O2 Reaction Under Oxygen-Rich Conditions Over Pd/V2O5/Al2O3: Evidence for In Situ Ammonia Generation

Authors:	Norman Macleod Richard M Lambert

Affiliation:	1. Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UK

Abstract:	Under oxygen-rich conditions in H₂ + NO + O₂ mixtures, Pd/V₂O₅/Al₂O₃ catalysts are active and highly selective (～80%) for NO_x reduction to N₂. In situ DRIFT spectroscopy and reactor data show that the system operates via formation of NH_x species on the highly dispersed V₂O₅ component. Both NH₃ and NH₄ ⁺ are formed, with the latter dominant. The role of the palladium component is also discussed.

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