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. (scientificamerican.com)
The focus of this project is to discover and to develop heterogeneous catalysts for solar - fuel generation. (greencarcongress.com)