Topic
Elementary reaction
About: Elementary reaction is a research topic. Over the lifetime, 2972 publications have been published within this topic receiving 76110 citations.
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TL;DR: In this paper, the closed catalytic cycle that describes the water gas shift reaction on copper catalysts was determined using microkinetic modeling, and it was shown that the most abundant surface species is a formate species formed via the hydrogenation of carbon dioxide.
95 citations
Book•
15 Feb 1996
TL;DR: In this paper, the interpretation of bimolecular reactions in solution is discussed, and the experimental study of reaction kinetics is discussed as well as reaction mechanism and reaction order.
Abstract: 1. The empirical framework of chemical kinetics. 2. The experimental study of reaction kinetics. 3. Reaction mechanism and reaction order. 4. Theories of bimolecular reaction. 5. The interpretation of bimolecular reactions in solution. 6. Unimolecular gas phase reactions. 7. Chain reactions. 8. Heterogeneous catalysis. 9. Homogeneous catalysis. 10. Relaxation and other advanced techniques. 11. Photochemistry and radiation chemistry. 12. Reaction dynamics. Appendices. Answers to problems. Index.
94 citations
TL;DR: In this article, an investigation of O2 electrogeneration at β-PbO2 electrodes in HClO4, H2SO4 and CF3SO3H (TFMSA) using steady-state and impedance measurements is presented.
94 citations
TL;DR: Discrete chemical reaction events occurring in solution have been observed by single photon detection of a bimolecular, chemiluminescent reaction from 9,10-diphenylanthracene in acetonitrile with potential pulses applied to an ultramicroelectrode.
Abstract: Discrete chemical reaction events occurring in solution have been observed by single photon detection of a bimolecular, chemiluminescent reaction. The reactants were generated from 9,10-diphenylanthracene in acetonitrile with potential pulses applied to an ultramicroelectrode. Electrogenerated radical ions of opposite sign react to yield the excited singlet state of the parent compound. The chemical reactions were restricted to a 20-femtoliter volume adjacent to the electrode by the use of rapid potential pulses. Individual chemical reaction events were stochastic and followed the Poisson distribution, and the interarrival time between successive reaction events was exponentially distributed.
94 citations
01 Jan 2011
TL;DR: This chapter describes different methodologies for the reduction of chemical mechanisms for subsequent use in reacting flow calculations, which should be as simple as possible in the sense of an efficient description, and as detailed as necessary in thesense of reliability.
Abstract: The description of chemically reacting systems leads very often to reaction mechanisms with far above hundred chemical species (and, therefore, to more than a hundred partial differential equations), which possibly react within more than a thousand of elementary reactions. These kinetic processes cover time scales from nanoseconds to seconds. Due to these scaling problems the detailed simulation of three-dimensional turbulent flows in practical systems using detailed kinetics is beyond the capacity of even today’s super-computers. Using simplified sub-models for the chemical kinetics is a way out of this problem. The question arising in mathematical modeling of reactive flows is then: how detailed, or down to which scale has the chemical reaction to be resolved in order to allow a reliable description of the entire process? The aim is the development of models, which should be as simple as possible in the sense of an efficient description, and also as detailed as necessary in the sense of reliability. In particular, an oversimplification of the coupling processes between chemical reaction and turbulent flow should be avoided by all means to allow a predictive character. This chapter describes different methodologies for the reduction of chemical mechanisms for subsequent use in reacting flow calculations.
94 citations