Catalysis


Ontology type: npg:Subject  | skos:Concept     


Concept Info

NAME

Catalysis

DESCRIPTION

Catalysis is the increase in the rate of a chemical reaction by the addition of a reagent — the catalyst — that is not itself consumed. The catalyst works by opening up a route between starting material and product with a lower activation barrier than the uncatalyzed process.

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48 skos:definition Biocatalysis is the chemical process through which enzymes or other biological catalysts perform reactions between organic components. Biocatalysis has been used widely in the pharmaceutical industry to make small molecule drugs.
49 skos:inScheme sg:ontologies/subjects/
50 skos:prefLabel Biocatalysis
51 sg:ontologies/subjects/catalyst-synthesis sgo:sdDataset onto_subjects
52 rdf:type npg:Subject
53 skos:Concept
54 rdfs:label Catalyst synthesis
55 skos:broader sg:ontologies/subjects/catalysis
56 sg:ontologies/subjects/synthesis
57 skos:definition Catalyst synthesis is the process of fabricating catalytic materials. It aims to optimize factors such as the catalyst activity, selectivity, stability and cost.
58 skos:inScheme sg:ontologies/subjects/
59 skos:prefLabel Catalyst synthesis
60 sg:ontologies/subjects/catalytic-mechanisms sgo:sdDataset onto_subjects
61 rdf:type npg:Subject
62 skos:Concept
63 rdfs:label Catalytic mechanisms
64 skos:altLabel Catalytic mechanism
65 skos:broader sg:ontologies/subjects/catalysis
66 skos:definition A catalytic mechanism is the sequence of elementary reactions by which a catalytic reaction proceeds.
67 skos:inScheme sg:ontologies/subjects/
68 skos:prefLabel Catalytic mechanisms
69 sg:ontologies/subjects/chemistry sgo:sdDataset onto_subjects
70 rdf:type npg:Subject
71 skos:Concept
72 rdfs:label Chemistry
73 skos:broader sg:ontologies/subjects/physical-sciences
74 skos:definition Chemistry is a branch of science that involves the study of the composition, structure and properties of matter. Often known as the central science, it is a creative discipline chiefly concerned with atomic and molecular structure and its change, for instance through chemical reactions.
75 skos:inScheme sg:ontologies/subjects/
76 skos:narrower sg:ontologies/subjects/analytical-chemistry
77 sg:ontologies/subjects/biochemistry
78 sg:ontologies/subjects/biosynthesis
79 sg:ontologies/subjects/catalysis
80 sg:ontologies/subjects/chemical-biology
81 sg:ontologies/subjects/chemical-education
82 sg:ontologies/subjects/chemical-engineering
83 sg:ontologies/subjects/chemical-safety
84 sg:ontologies/subjects/cheminformatics
85 sg:ontologies/subjects/chemistry-publishing
86 sg:ontologies/subjects/communicating-chemistry
87 sg:ontologies/subjects/coordination-chemistry
88 sg:ontologies/subjects/electrochemistry
89 sg:ontologies/subjects/energy
90 sg:ontologies/subjects/environmental-chemistry
91 sg:ontologies/subjects/green-chemistry
92 sg:ontologies/subjects/history-of-chemistry
93 sg:ontologies/subjects/inorganic-chemistry
94 sg:ontologies/subjects/materials-chemistry
95 sg:ontologies/subjects/medicinal-chemistry
96 sg:ontologies/subjects/nuclear-chemistry
97 sg:ontologies/subjects/organic-chemistry
98 sg:ontologies/subjects/origin-of-life
99 sg:ontologies/subjects/photochemistry
100 sg:ontologies/subjects/physical-chemistry
101 sg:ontologies/subjects/polymer-chemistry
102 sg:ontologies/subjects/process-chemistry
103 sg:ontologies/subjects/supramolecular-chemistry
104 sg:ontologies/subjects/surface-chemistry
105 sg:ontologies/subjects/synthesis
106 sg:ontologies/subjects/theoretical-chemistry
107 skos:prefLabel Chemistry
108 sg:ontologies/subjects/electrocatalysis sgo:sdDataset onto_subjects
109 rdf:type npg:Subject
110 skos:Concept
111 rdfs:label Electrocatalysis
112 skos:broader sg:ontologies/subjects/catalysis
113 sg:ontologies/subjects/electrochemistry
114 sg:ontologies/subjects/materials-for-energy-and-catalysis
115 skos:definition Electrocatalysis is a type of catalysis that results in the modification of the rate of an electrochemical reaction occurring on an electrode surface. The relative electrocatalytic properties of a group of materials at a given temperature and concentration are not necessarily constant, and may vary according to the different dependence of rates on electrical potential.
116 skos:inScheme sg:ontologies/subjects/
117 skos:prefLabel Electrocatalysis
118 sg:ontologies/subjects/heterogeneous-catalysis sgo:sdDataset onto_subjects
119 rdf:type npg:Subject
120 skos:Concept
121 rdfs:label Heterogeneous catalysis
122 skos:broader sg:ontologies/subjects/catalysis
123 skos:definition Heterogeneous catalysis is a type of catalysis in which the catalyst occupies a different phase from the reactants and products. This may refer to the physical phase — solid, liquid or gas — but also to immiscible fluids. Heterogeneous catalysts can be more easily recycled than homogeneous, but characterization of the catalyst and optimization of properties can be more difficult.
124 skos:inScheme sg:ontologies/subjects/
125 skos:prefLabel Heterogeneous catalysis
126 sg:ontologies/subjects/homogeneous-catalysis sgo:sdDataset onto_subjects
127 rdf:type npg:Subject
128 skos:Concept
129 rdfs:label Homogeneous catalysis
130 skos:broader sg:ontologies/subjects/catalysis
131 skos:definition Homogeneous catalysis is a type of catalysis in which the catalyst operates in the same phase as the reactants — usually dissolved in a solvent. Mechanistic studies of homogeneous catalysts are generally easier than those of heterogeneous catalysts, which aids optimization. They can, however, be difficult to separate from the products and thus recycle.
132 skos:inScheme sg:ontologies/subjects/
133 skos:prefLabel Homogeneous catalysis
134 sg:ontologies/subjects/organocatalysis sgo:sdDataset onto_subjects
135 rdf:type npg:Subject
136 skos:Concept
137 rdfs:label Organocatalysis
138 skos:broader sg:ontologies/subjects/catalysis
139 skos:definition Organocatalysis is a type of catalysis where the catalyst in the chemical reaction is an organic (non-metallic) compound. The catalysts operate both through the transient formation of covalent bonds, such as in enamine and imminium catalysis, as well as through non-covalent interactions, such as in hydrogen bonding catalysis.
140 skos:inScheme sg:ontologies/subjects/
141 skos:prefLabel Organocatalysis
142 sg:ontologies/subjects/photocatalysis sgo:sdDataset onto_subjects
143 rdf:type npg:Subject
144 skos:Concept
145 rdfs:label Photocatalysis
146 skos:broader sg:ontologies/subjects/catalysis
147 sg:ontologies/subjects/materials-for-energy-and-catalysis
148 sg:ontologies/subjects/photochemistry
149 skos:definition Photocatalysis is a type of catalysis that results in the modification of the rate of a photoreaction - a chemical reaction that involves the absorption of light by one or more reacting species - by adding substances (catalysts) that participate in the chemical reaction without being consumed.
150 skos:inScheme sg:ontologies/subjects/
151 skos:prefLabel Photocatalysis
152 skos:Concept sgo:sdDataset for_codes
153 rdf:type rdfs:Class
154 rdfs:Resource
155 rdfs:subClassOf rdfs:Resource
156 skos:Concept
 




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