Class information for:
Level 2: AMMONIA SYNTHESIS//AMMONIA DECOMPOSITION//AMMONIA ELECTRO OXIDATION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
1 4 PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY 2188495
10 3       JOURNAL OF CATALYSIS//CHEMISTRY, PHYSICAL//APPLIED CATALYSIS A-GENERAL 144576
3323 2             AMMONIA SYNTHESIS//AMMONIA DECOMPOSITION//AMMONIA ELECTRO OXIDATION 1931
12035 1                   AMMONIA SYNTHESIS//ENGN CHEM FERTILIZER CATALYST//AMMONIA SYNTHESIS CATALYST 964
17474 1                   AMMONIA DECOMPOSITION//AMMONIA ELECTRO OXIDATION//AMMONIA ELECTROLYSIS 625
24240 1                   ELECTROCHEMICAL SYNTHESIS OF AMMONIA//FUNDAMENTAL ENERGY SCI//NITRIDE ION 342

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 AMMONIA SYNTHESIS authKW 2850941 13% 72% 243
2 AMMONIA DECOMPOSITION authKW 1713838 7% 74% 142
3 AMMONIA ELECTRO OXIDATION authKW 197001 1% 93% 13
4 AMMONIA ELECTROLYSIS authKW 179517 1% 100% 11
5 DIRECT AMMONIA FUEL CELL authKW 179517 1% 100% 11
6 ELECTROCHEMICAL SYNTHESIS OF AMMONIA authKW 146878 0% 100% 9
7 FUNDAMENTAL ENERGY SCI address 137113 3% 15% 56
8 ENGN CHEM FERTILIZER CATALYST address 135075 2% 20% 41
9 AMMONIA SYNTHESIS CATALYST authKW 116050 0% 89% 8
10 AMMONIA FUEL authKW 101679 0% 69% 9

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Physical 13793 56% 0% 1075
2 Electrochemistry 5969 15% 0% 298
3 Engineering, Chemical 4705 21% 0% 415
4 Energy & Fuels 1727 11% 0% 203
5 Chemistry, Multidisciplinary 1155 18% 0% 351
6 Chemistry, Applied 830 7% 0% 133
7 Materials Science, Coatings & Films 315 3% 0% 65
8 Materials Science, Multidisciplinary 284 12% 0% 232
9 Nanoscience & Nanotechnology 147 4% 0% 78
10 Environmental Sciences 100 5% 0% 106

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 FUNDAMENTAL ENERGY SCI 137113 3% 15% 56
2 ENGN CHEM FERTILIZER CATALYST 135075 2% 20% 41
3 KG BO KOV CATALYSIS 97918 0% 100% 6
4 ZHEJIANG HETEROGENEOUS CATALYSIS 72692 0% 64% 7
5 INORGAN CHEM TECHNOL ENVIRONM ENGN 71198 1% 36% 12
6 CHEM FERTILIZER CATALYSTS 69623 0% 53% 8
7 STOCKER 165 36712 0% 38% 6
8 TECHNOL CHEM NIEORGANICZNEJ INZYNIERII SRO 34758 0% 30% 7
9 HEAT TREATMENT C COATING RBCD MOE9 32639 0% 100% 2
10 NSF IGERT ASSOCIATE BIOREFINING 32639 0% 100% 2

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF CATALYSIS 17557 6% 1% 117
2 APPLIED CATALYSIS A-GENERAL 9734 4% 1% 84
3 CATALYSIS LETTERS 8721 3% 1% 64
4 CHINESE JOURNAL OF CATALYSIS 7011 2% 1% 40
5 PRZEMYSL CHEMICZNY 6940 2% 1% 47
6 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 6285 5% 0% 92
7 APPLIED CATALYSIS 5187 1% 1% 26
8 CATALYSIS TODAY 2452 2% 0% 40
9 CATALYSIS COMMUNICATIONS 2318 1% 1% 27
10 TOPICS IN CATALYSIS 2194 1% 1% 20

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 AMMONIA SYNTHESIS 2850941 13% 72% 243 Search AMMONIA+SYNTHESIS Search AMMONIA+SYNTHESIS
2 AMMONIA DECOMPOSITION 1713838 7% 74% 142 Search AMMONIA+DECOMPOSITION Search AMMONIA+DECOMPOSITION
3 AMMONIA ELECTRO OXIDATION 197001 1% 93% 13 Search AMMONIA+ELECTRO+OXIDATION Search AMMONIA+ELECTRO+OXIDATION
4 AMMONIA ELECTROLYSIS 179517 1% 100% 11 Search AMMONIA+ELECTROLYSIS Search AMMONIA+ELECTROLYSIS
5 DIRECT AMMONIA FUEL CELL 179517 1% 100% 11 Search DIRECT+AMMONIA+FUEL+CELL Search DIRECT+AMMONIA+FUEL+CELL
6 ELECTROCHEMICAL SYNTHESIS OF AMMONIA 146878 0% 100% 9 Search ELECTROCHEMICAL+SYNTHESIS+OF+AMMONIA Search ELECTROCHEMICAL+SYNTHESIS+OF+AMMONIA
7 AMMONIA SYNTHESIS CATALYST 116050 0% 89% 8 Search AMMONIA+SYNTHESIS+CATALYST Search AMMONIA+SYNTHESIS+CATALYST
8 AMMONIA FUEL 101679 0% 69% 9 Search AMMONIA+FUEL Search AMMONIA+FUEL
9 BARIUM PROMOTER 99957 0% 88% 7 Search BARIUM+PROMOTER Search BARIUM+PROMOTER
10 AMMONIA OXIDATION 93540 2% 13% 45 Search AMMONIA+OXIDATION Search AMMONIA+OXIDATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 2


rank cluster_id2 link
1 401 FISCHER TROPSCH SYNTHESIS//JOURNAL OF CATALYSIS//FISCHER TROPSCH
2 29 SURFACE SCIENCE//LOW INDEX SINGLE CRYSTAL SURFACES//CHEMISTRY, PHYSICAL
3 3556 C12A7//12CAO CENTER DOT 7AL2O3//MAYENITE
4 3143 ETHYLBENZENE DEHYDROGENATION//RYDBERG ATOMS//ETHYLBENZENE
5 576 STEAM REFORMING//METHANOL SYNTHESIS//AUTOTHERMAL REFORMING
6 1548 SELECTIVE HYDROGENATION//HYDROGENATION//ACETYLENE HYDROGENATION
7 1954 THERMOCHEMICAL CYCLE//CHEMICAL HEAT PUMP//INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
8 2572 AMMONIA BORANE//HYDROGEN GENERATION//SODIUM BOROHYDRIDE
9 145 SOLID OXIDE FUEL CELL//SOFC//SOLID OXIDE FUEL CELLS
10 3631 ACETYLENE HYDROCHLORINATION//HCL OXIDATION//OXYCHLORINATION

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