Decomposition of nitrous oxide

Johnston H S 1951 Interpretation of the data on the thermal decomposition of nitrous oxide J. Chem. Phys. 19 663-7... 

The decomposition of nitrous oxide (NjO) to nitrogen and oxygen is preformed in a 5.0 1 batch reactor at a constant temperature of 1,015 K, beginning with pure NjO at several initial pressures. The reactor pressure P(t) is monitored, and the times (tj/2) required to achieve 50% conversion of N2O are noted in Table 3-19. Use these results to verify that the N2O decomposition reaction is second order and determine the value of k at T = 1,015 K. 

The decomposition of nitrous oxide (NjO) to nitrogen and oxygen is represented by... 

PCSs obtained by dehydrochlorination of poly(2-dilorovinyl methyl ketones) catalyze the processes of oxidation and dehydrogenation of alcohols, and the toluene oxidation207. The products of the thermal transformation of PAN are also catalysts for the decomposition of nitrous oxide, for the dehydrogenation of alcohols and cyclohexene274, and for the cis-tnms isomerization of olefins275. Catalytic activity in the decomposition reactions of hydrazine, formic acid, and hydrogen peroxide is also manifested by the products of FVC dehydrochlorination... 

The stratosphere contains, however, only small amounts--a few tenths of a ppb-of chlorine free radicals of natural origin. They are produced by the decomposition of methyl chloride, CH3Q. The nitrogen oxides (NO and NO2) are more abundant and are produced in the stratosphere by the decomposition of nitrous oxide, N2O. Both CH3CI and N2O are of biological origin these compounds, released at the Earth s surface, are sufficiently stable to reach the stratosphere in significant amounts. 

Hart and Henglein [14] also reported the sonolytic decomposition of nitrous oxide in aqueous solutions under pure argon, pure N2O and the mixture of the two gases and reported the formation of species such as N2, O2, N02 and N03 with the maximum yield being in the Ar/N20 mixture in the vol% ratio of 85 15. Although H20 is thermodynamically much more stable than N2O but they postulated that all H20 and N2O molecules in an argon bubble were converted into free radicals in the short time of adiabatic compression phase of the bubble. They proposed a series of free radical reactions for the formation of all these species in aqueous solutions. 

Hart Edwin J, Henglein Amim (1986) Sonolytic decomposition of nitrous oxide in aqueous solution. J Phys Chem 90 5992-5995... 

Hinshelwood and Burk [Proc. Roy. Soc., 106A (284), 1924] have studied the thermal decomposition of nitrous oxide. Consider the following adjusted data at 1030 °K. 

Decomposition of Nitrous Oxide on Magnesium Oxide Compared to That on Cupric Oxide... 

The decomposition of nitrous oxide over various metal oxides has been widely investigated by many investigators (1-3). Dell, Stone and Tiley (4) have compared the reactivity of metal oxides and shown that in general p-type oxides were the best catalysts and n-type the worst, with insulators occupying an intermediate position. It has been generally accepted (5) that this correlation indicates that the electronic structure of the catalyst is an important factor in the mechanism of the decomposition of nitrous oxide over metal oxides catalysts. The reaction is usually written (4) as... 

It will, therefore, be plausible to conclude that the decomposition of nitrous oxide on CuO is taking place predominantly through the reaction step (1) with the desorption of oxygen as the slowest step. 

The decomposition of nitrous oxide is believed to proceed with the intermediate generation of atomic oxygen according to the reactions... 

Data for the thermal decomposition of nitrous oxide on gold at 900°C and an initial pressure of 200 Torr are tabulated. Check the order of the reaction. 

Find the rate equation for the thermal decomposition of nitrous oxide in... 

Experiment shows that the primary reaction in the homogeneous decomposition of nitrous oxide proceeds with stoichiometry N20 => N2 + 0.5 02 and rate equation... 

Shen and Johnstone studied the catalytic decomposition of nitrous oxide ... 

Using the results of Schwab and co-workers (68), of Schmid and Keller (69), and of their own work on cuprous oxide, Dell, Stone, and Tiley (70) have shown that the solid oxides active for the decomposition of nitrous oxide can be divided into three groups depending on the temperature required to produce measurable decomposition. 

Schwab and co-workers (5-7) found a parallel between the electron concentration of different phases of certain alloys and the activation energies observed for the decomposition of formic acid into H2 and CO2, with these alloys as catalysts. Suhrmann and Sachtler (8,9,58) found a relation between the work function of gold and platinum and the energy of activation necessary for the decomposition of nitrous oxide on these metals. C. Wagner (10) found a relation between the electrical conductivity of semiconducting oxide catalysts and their activity in the decomposition of N2O. 

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