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Friday, July 31, 2020 | History

2 edition of catalytic decomposition of ammonia on evaporated metal films. found in the catalog.

catalytic decomposition of ammonia on evaporated metal films.

Samuel Robert Logan

catalytic decomposition of ammonia on evaporated metal films.

by Samuel Robert Logan

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  • 14 Currently reading

Published .
Written in English


Edition Notes

Thesis (Ph. D.)--The Queen"s University of Belfast, 1959.

The Physical Object
Pagination1 v
ID Numbers
Open LibraryOL20338581M

Exchange reactions of fluorobenzene and chlorobenzene with deuterium have been investigated over evaporated films of palladium, platinum, nickel and tungsten and reactions of bromobenzene have been studied on platinum and tungsten. Rates of exchange were much slower than rate for the exchange of benzene on the sameCited by: 9. Catalytic Ammonia Decomposition for Hydrogen Production: Utilization of Ammonia in a Fuel Cell. ,,, DOI: /_5. Krystina E. Lamb, Michael D. Dolan, Danielle F. Kennedy. Ammonia for hydrogen storage; A review of catalytic ammonia decomposition and hydrogen separation and purification.

  3. Egorov, V.N., Krinitsyn, E.N., Mel’nikov, I.I., et al., Ammonia Decomposition and Sulfur Production, Koks Khim., , no. 12, pp. 14–Cited by: 2. Specific reaction rates (cm -2 -s -1) of the catalytic decomposition of ammonia, the isotopic exchange between ammonia and deuterium, and the inhibition of the decomposition of ammonia by hydrogen (with ammonia to hydrogen partial pressure ratios varying from to ) on a polycrystalline platinum wire have been measured in a continuous stirred tank .

The interaction of ammonia with evaporated metal films of Ni, Pd, W, and Al has been studied in the temperature range from to K. Both molecular and dissociative adsorption of NH/sub 3/ took place on all films at K. The adsorbed NH/sub 3/ at such temperature did not displace presorbed hydrogen at K on Ni and Pd films. A typical example of such a material is Co 3 Mo 3 N that yields Co 6 Mo 6 N and up to 8 mol% of its lattice nitrogen in the form of NH 3 when reacted for 60 min with H 2 at C[27].


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Catalytic decomposition of ammonia on evaporated metal films by Samuel Robert Logan Download PDF EPUB FB2

The catalytic decomposition of ammonia on evaporated iron films. Logan, R. Moss and C. Kemball Abstract. Effects of Alkaline Earth Metal Amides on Ru in Catalytic Ammonia Decomposition.

The Journal of Physical Chemistry C(5), DOI: /5b David A. Finkelstein, Erwan Bertin, Sébastien Garbarino, and Daniel by: Thus, the catalytic decomposition of ammonia is seemed as a very promising way for H 2 production, and much effort has been devoted to exploit efficient catalysts including noble metal (Ru, Ir, Pd, etc.) and non-noble metal (Fe, Co, Ni, etc.) catalysts for ammonia decomposition [, Cited by: 7.

Abstract. DURING the course of an investigation which is being made on the decomposition of amines in the presence of hydrogen over evaporated metal-film catalysts, an unexpected example of selective catalytic action has been observed. The decomposition of cyclohexylamine on evaporated platinum films at ° by: 5.

2 Production via Ammonia Decomposition Using Non-Noble Metal Catalysts: A Review T. Bell1 • L. Torrente-Murciano1 Published online: 26 July The Author(s) This article is published with open access at Abstract The wide-spread implementation of the so-called hydrogen economy is currently partially limited by anCited by: However, it is useful to take note of some CATALYTIC REACTIONS ON METAL FILMS of the relevant thermodynamic quantities which place a boundary on the reaction possibilities.

The following discussion is confined to a temperature of °K ( °C Cited by: 6. Electrochemical Decomposition Characteristics of Ammonia by the Catalytic Oxide Electrodes Kwang-Wook Kim †, Young-Jun Kim, In-Tae Kim, Gun-Ill Park and Eil-Hee Lee Korea Atomic Energy Research Institute,Dukjin-dong, Yusong-gu, DaejeonKorea (Received 23 June ; accepted 19 November )Author: 김광욱, 김영준, 김인태, 박근일, 이일희, Kwang-Wook Kim, Young-Jun Kim, In-Tae Kim, Gun-Ill Park, Eil-Hee Lee.

The adsorbed-nitrogen model is consistent with observations made in earlier studies of NH3 decomposition carried out over nickel films (5) and unsupported nickel (6, 7) at higher pressures and lower by: Open circles, evaporated metal films; hatched circles, supported metal catalysts.

Metals of the platinum group are also efficient catalysts for the hydrogenation of cyclopropane, although here the situation on the surface is somewhat different from that.

It almost seems like magic. A mixture of gaseous H 2 and O 2 can coexist indefinitely without any detectable reaction, but if a platinum wire is heated and then immersed in the gaseous mixture, the reaction proceeds gently as the heat liberated by the reaction makes the wire glow red-hot.

Catalysts play an essential role in our modern industrial economy, in our. Ammonia (NH 3) is a good candidate as an alternative H 2 carrier because of its high H 2 storage capacity and facile liquefaction under mild conditions [1].

Because high-purity H 2 is required to generate electricity with a fuel cell, a high-performance catalyst for producing H 2 from decomposition of NH 3 is needed when NH 3 is used as a H 2. Popular examples are decomposition of formic acid (Rootsaert and Sachtler, ), decomposition (Logan and Kemball, ) and synthesis (Aika et al., ) of ammonia and hydrogenation of ethylene (Schuit et al., ) on metal by: 7.

A wide range of monometallic catalytic systems have been tested for the hydrogen production via ammonia decomposition. The catalytic activity is highly dependent on the choice of metal component, the catalytic support and the potential use of promoters as well as the ammonia decomposition conditions by: Strong promoting effect of alkali metal amides, i.e., LiNH2, NaNH2 and KNH2, on the catalytic activity of manganese nitride (MnN) for ammonia decomposition has been demonstrated, which is.

The decomposition of cyclohexylamine on evaporated platinum films at ° C. was expected to produce cyclo-hexane and ammonia according to the equation The reaction was followed by continuous massspectrometric analysis of the reacting. ammonia was formed, indicating that the homogeneous reaction and the effect of the glass walls were negligible.

Catalytic reactions were carried out on evaporated metal films of nickel, iron, platinum, palladium and tungsten. Figure 1, which represents the variation of percentage composition with time on an evaporated nickel film catalyst, shows the.

Purchase Vibrations at Surfaces, Volume 14 - 1st Edition. Print Book & E-Book. ISBNH2 Production via Ammonia Decomposition Using Non-Noble Metal Catalysts: A Review Article (PDF Available) in Topics in Catalysis 59(15) July with Reads How we measure 'reads'.

The decomposition of cyclohexylamine on evaporated platinum films at ° C. was expected to produce cyclo-hexane and ammonia according to the equation The reaction was followed by continuous massspectrometric analysis of the reacting gases by a technique described elsewhere 1.

The catalytic fission of the C—N bond of ethylamine in hydrogen led to two main reactions: platinum films favoured reaction I, to ammonia and ethane; nickel, palladium and gold films favoured react.

A study of the catalytic fission of the C\chembond{1,0} N bond was begun by following the reactions of methylamine in the presence of hydrogen by means of a mass spectrometer. On evaporated films of nickel, iron, palladium, platinum and tungsten, the expected products, ammonia and methane, were accompanied by the formation of higher amines and carbon was also lost to the by:   Besides the similarity of the hydrogenation regularities of CO and carbonyl compounds on metals (a similar type of mechanism, an analogous dependence of the catalytic activity on the heat of adsorption qR of the reagent R), important differences have been found that are evident in the value of (qR)opt, the chemical composition of the optimal catalysts, the Author: G.

I. Golodets.Catalytic properties of metal oxides of the IV-th period of the periodic table in oxidation reactions: Oxidation of methane T.V. Androoshk'yeveetch, V.V. Popovsky, G.K. Bor'yeskov Page