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Catalysis is the increase in the rate of a chemical reaction of one or more reactants due to the participation of an additional substance called as catalyst. Unlike other reagents in the chemical reaction, a catalyst is not consumed by the reaction. With a catalyst, less free energy is required to reach the transition state, but the total free energy from reactants to products does not change. A catalyst may participate in multiple chemical transformations. The effect of a catalyst may vary due to the presence of other substances known as inhibitors or poisons (which reduce the catalytic activity) or promoters (which increase the activity). The opposite of a catalyst, a substance that reduces the rate of a reaction, is an inhibitor. Catalyzed reactions have a loweractivationenergy (rate-limiting free energy of activation) than the corresponding uncatalyzed reaction, resulting in a higher reaction rate at the same temperature and for the same reactant concentrations. Catalysts may affect the reaction environment favorably, or bind to the reagents to polarize bonds, e.g.acid catalysts for reactions of carbonyl compounds, or form specific intermediates that are not produced naturally,or cause dissociation of reagents to reactive forms, such as chemisorbed hydrogen in catalytic hydrogenation. OMICS Group through its Open Access Initiative is committed to make genuine and reliable contributions to the scientific community. Topics like Ebola -Detection and Diagnostics, Genetic predictors of immune response, Viral Genomics and Proteomics are of interest.
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Scope and Importance
Homogeneous catalysis is a sequence of reactions that involve a catalyst in the same phase as the reactants. Phase here refers to solid, liquid, vs gas. Most commonly, a homogeneous catalyst is codissolved in a solvent with the reactants. Heterogeneous catalysis refers to the form of catalysis where the phase of the catalyst differs from that of the reactants. Phase means not only to solid, liquid, vs gas, but also immiscible liquids, e.g. oil and water. The great majority of practical heterogeneous catalysts are solids and the great majority of reactants are gases or liquids. Kinetically, catalytic reactions are typical chemical reactions; i.e. the reaction rate depends on the frequency of contact of the reactants in the rate-determining step. Usually, the catalyst participates in this slowest step, and rates are limited by amount of catalyst and its "activity". In heterogeneous catalysis, the diffusion of reagents to the surface and diffusion of products from the surface can be rate determining. A nanomaterial-based catalyst is an example of a heterogeneous catalyst. Analogous events associated with substrate binding and product dissociation apply to homogeneous catalysts. In the chemical industry and the industrial research, catalysis plays an important role.Around 9 Companies are there which are associated with the catalysis research.Conferences/Symposiums/Workshops which are going to held in upcoming year are 5 in number.
Global Catalyst Market is expected to reach USD 27.59 billion by 2020, according to a new study by Grand View Research, Inc. Growing demand for polymers is expected to result in increased utilization of refinery capacities which in turn is expected to drive catalyst demand. Favorable regulatory scenario for development of high yield, efficient and conservative manufacturing processes is also expected to enhance demand over the forecast period.
Chemical synthesis was the most dominant application market; with catalyst demand exceeding 1,800 kilo tons in 2013, owing to growth in chemical production, particularly in Asia Pacific and Latin America. Environmental catalysis another key application market, accounting for over 29% of global catalyst demand in 2013 and is expected to witness fastest growth, at an estimated CAGR of 3.9% from 2014 to 2020; on account of growing preference towards the production of clean fuels and use of green technology in manufacturing process.
November 02-04, 2015 HICC, Hyderabad, India
30-December 02, 2015 San Francisco, USA
February 29-March 02, 2016 Philadelphia, USA
4. Euro Virology Congress and Expo
March 10-12, 2016 Madrid, Spain
5. Cancer Immunology Conference 2016
July 28-30, 2016 Melbourne, Australia
6. Hepatitis Vaccines Conference
June 16-18, 2016 Rome, Italy
July 18-19, 2016 Philadelphia, USA
COMS- Simposio Colombiano de Catalisis
07 Sep 2015 → 15 Sep 2015 CALI, Colombia
COMS- Designing new heterogeneous catalysis 2016
04 Apr 2016 → 06 Apr 2016
COMS- Carbon Dioxide Catalysis Conference
19 Apr 2016 → 22 Apr 2016 Carvoeiro, Algarve., Portugal
Relevant Society and Associations
European Congress on Catalysis
North American Catalysis Society
University of Central Punjab Catalyst Socity
The International Association of Catalysis Socities
European Catalyst Manufacturers Association (ECMA)
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This page was last updated on 11th Sep, 2015
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