Sentences with phrase «heterogeneous catalysts»
Heterogeneous catalysts are substances that speed up chemical reactions but remain separate from the reactants. They are like helpers that make reactions happen faster without getting mixed in with the reaction itself. Full definition
One novel contribution in the course of this research has been the synthesis and identification of a new compound — calcium glycerolate — «which notably surpasses calcium oxide and glyceroxide in stability and makes it a very good candidate for the development of heterogeneous catalysts for the synthesis of biodiesel.»
sciencedaily.com
The latter is a common issue with heterogeneous catalysts used in petroleum refining and petrochemical production.
The focus of this project is to discover and to develop heterogeneous catalysts for solar - fuel generation.
One of the novel contributions of her research has been the synthesis and identification of a new compound the characteristics of which make it «a very good candidate for developing heterogeneous catalysts.»
Ms. Reyero's thesis, «Advances in biodiesel production: ethanolysis and new heterogeneous catalysts,» was directed by Professor Luis Gandía Pascual and Professor María Cruz Arzamendi Manterola, from the Department of Applied Chemistry at the UPNA, and was awarded an Outstanding with Honours PhD.
The author of the PhD explains why heterogeneous catalysts are used instead of homogeneous: «the homogeneous ones currently employed are highly effective, but they can not be reused and they contaminate the products, and so costly separation and purification stages are needed to obtain biodiesel and glycerine in sufficient quantities to be commercially viable.
«The new method is important because an overwhelming majority of chemical industry products are made using heterogeneous catalysts functioning at the gas - solid interface,» said the study's senior author, Louis Bouchard, an assistant professor of chemistry and biochemistry and a member of UCLA's California NanoSystems Institute.
«The developed zeolite is one of the few examples of a catalyst with well - defined active sites evenly distributed in the zeolite framework — a truly single - site heterogeneous catalyst,» says Professor Johannes Lercher.
Its efficiency far exceeded that of any other reported heterogeneous catalysts, they say.
Idaho National Laboratory (INL) has unique capabilities to develop and evaluate heterogeneous catalysts for harsh environments, especially highly corrosive, high - temperature environments that exist in the sulfur - based thermochemical water splitting cycles.
Key areas of research in the Molecular and Nanoscale Interfaces group includes the design of molecular «tool kits» for interfacing homogeneous catalysts to electrode surfaces, the development of solid - solid interfacing schemes to couple heterogeneous catalysts to electrode surfaces, and mechanistic studies of charge - transport behavior at these interfaces.
Studied gas - phased reactions on heterogeneous catalyst of various industrial applications using spectroscopy
During graduated educations I have gained significant practical experiences in synthesis and functionalization of heterogeneous supports based on mesoporous silica (MS), periodic mesoporous organosilica (PMO) designing new recycleable heterogeneous catalysts for organic transformations.
«Ethanol and heterogeneous catalysts for biodiesel production.»
Traditionally, industrial processes use heterogeneous catalysts, where reactants pass through a bed or gauze of solid catalyst.
It may be possible to design a heterogeneous catalyst rather than rely on empirical development — less of the black art!»
«In future, this method will therefore play an important role in the search for electrocatalytically active, heterogeneous catalysts,» says Wolfgang Schuhmann.
Chemical engineer Inés Reyero Zaragoza proposed the substitution of methanol by ethanol for the production of biodiesel and the use of a heterogeneous catalyst, which will «result in a reduction of costs and in the environmental impact associated with the production of this biofuel.»
This unique collection of properties makes these materials attractive candidates for chemical applications such as sensors and heterogeneous catalysts.
«I wonder if communication between active sites separated by a few hundred nanometers is a general feature of heterogeneous catalysts.»
Tasked with designing a heterogeneous catalyst using pyrolyzed cellulose to break down cellulose into glucose.