Mechanism for N<sub>2</sub>O formation from NO at ambient temperature

Wang, Jinsheng; Jia, Lei; Anthony, Edward J.

doi:10.1002/aic.690490126

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…The decomposition of nitrous oxide (N 2 O) is very important not only in emission control but also as a green and attractive propulsion mode alternative to the decomposition of hydrazine since it forms nonpollutants of N 2 and O 2 (Eq. ) accompanied by a large amount of heat release and volume expansion.…”

Section: Introductionmentioning

confidence: 99%

Catalytic decomposition of propellant N₂O Over Ir/Al₂O₃ catalyst

Lin

Pan

et al. 2016

AIChE Journal

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N2O, as a green propellant alternative to N2H4, shows potential application in satellite propulsion system. The state of Ir species and the reaction behaviors on Ir/Al2O3 in the oxidative environment during N2O decomposition were identified here. Two types of Ir sites existed in this catalyst and affected the process of N2O decomposition. The strong Ir sites facilitated the dissociative adsorption of N2O to form N2 and adsorbed O atoms with adsorption heat of as high as 281 kJ/mol, which promoted the desorption of adsorbed O atoms and favored the self‐sustaining decomposition of N2O by raising the catalyst bed temperature. The other Ir sites interacted weakly with O atoms but facilitated their combination to form O2. The Ir/Al2O3 catalyst then exhibited an excellent performance in initiating the decomposition of N2O at low temperature of 200°C and good stability in 0.1 N microthruster for orbit adjustment and attitude control of satellite. © 2016 American Institute of Chemical Engineers AIChE J, 62: 3973–3981, 2016

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Section: Introductionmentioning

confidence: 99%

Catalytic decomposition of propellant N₂O Over Ir/Al₂O₃ catalyst

Lin

Pan

et al. 2016

AIChE Journal

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“…Muzio and Kramlich, 1988;Cofer III et al, 1990b;Linak et al, 1990). de Soete (1988) proposed the following mechanism for N 2 O production in dry gas mixtures: 2 NO + SO 2 = N 2 O + SO 3 Wang et al (2003) formulated a series of potential chemical reactions that produced N 2 O from NO and SO 2 , and Preto et al (2004) experimentally investigated this process and its time dependence. According to their results, detectable N 2 O increase in proportion to the initial concentration of NO and SO 2 as well as O 2 and water vapor was found within an hour after sample collection at 25°C.…”

Section: Co 2 Normalized Emission Ratiosmentioning

confidence: 99%

Characteristics of fire-generated gas emission observed during a large peatland fire in 2009 at Kalimantan, Indonesia

Hamada

Darung

Limin

et al. 2013

Atmospheric Environment

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To investigate the characteristics of gas emissions from a tropical peatland fire, ground-level measurement of fire-generated gases was conducted during a large fire event in Kalimantan, Indonesia in 2009. Concentrations of CO and CH4 showed positive linear correlations with that of CO2. The relationship between concentrations of N2O and CO2 were divided into two parts, suggesting the influence of additional N2O generation during sample storage. The CO2-normalized emission ratio was calculated for CO, CH4, and N2O. The molar ratio of these fire-generated gas emissions was summarized as CO2:CO:CH4:N2O = 1.00:0.382:0.0261:0.000156, whereas the emission ratio calculated on the global warming potential (GWP) basis was CO2:CH4:N2O = 1.00:0.237:0.0465. The GWP emission based on this ratio was 87.8-91.2% of a simple evaluation in which all carbon was assumed to be emitted as CO2. This is the first trial to evaluate the emission ratios of major greenhouse gases on the basis of ground-level observation during an actual tropical peatland fire. (C) 2013 Elsevier Ltd. All rights reserved

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“…The dimer of nitrogen monoxide (N 2 O 2 ) is a possible intermediate in the reduction of NO in the gas phase [11] and in catalyzed reactions on surfaces [12][13][14][15]. At 70-90 K, N 2 O is formed from N 2 O 2 on the Ag(111) surface 0166-1280/$ -see front matter Ó 2007 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%