Class information for:
Level 2: SELECTIVE CATALYTIC REDUCTION//SCR//NH3 SCR

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
912 2             SELECTIVE CATALYTIC REDUCTION//SCR//NH3 SCR 11395
727 1                   CU ZSM 5//HC SCR//AG AL2O3 3152
1292 1                   SELECTIVE CATALYTIC REDUCTION//NH3 SCR//SCR 2752
5831 1                   SOOT OXIDATION//SOOT COMBUSTION//DIESEL PARTICULATE FILTER 1597
6615 1                   N2O DECOMPOSITION//FE ZSM 5//ALPHA OXYGEN 1492
9875 1                   LEAN NOX TRAP//NOX STORAGE//NOX STORAGE REDUCTION 1144
11987 1                   CATALYTIC CONVERTER//LIGHT OFF//HYDROCARBON TRAP 967
25871 1                   UREA SCR//SELECTIVE CATALYTIC REDUCTION SYSTEM//UREA DECOMPOSITION 291

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SELECTIVE CATALYTIC REDUCTION authKW 1691241 6% 84% 728
2 SCR authKW 913596 4% 67% 497
3 NH3 SCR authKW 637767 2% 95% 244
4 N2O DECOMPOSITION authKW 566227 2% 78% 262
5 APPLIED CATALYSIS B-ENVIRONMENTAL journal 530726 11% 16% 1240
6 FE ZSM 5 authKW 501706 2% 89% 203
7 DENOX authKW 493668 2% 67% 266
8 SOOT OXIDATION authKW 442928 2% 83% 192
9 NOX REDUCTION authKW 405293 2% 59% 250
10 CU ZSM 5 authKW 404938 2% 84% 175

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Engineering, Chemical 121174 43% 1% 4915
2 Chemistry, Physical 107111 63% 1% 7214
3 Engineering, Environmental 38405 15% 1% 1723
4 Chemistry, Applied 32091 16% 1% 1858
5 Energy & Fuels 1621 5% 0% 547
6 Chemistry, Multidisciplinary 1441 10% 0% 1172
7 Nanoscience & Nanotechnology 1078 4% 0% 498
8 Transportation Science & Technology 918 1% 0% 147
9 Environmental Sciences 839 6% 0% 698
10 Engineering, Mechanical 751 4% 0% 405

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 COMPETENCE CATALYSIS 222823 2% 45% 181
2 CATALYSIS CATALYT PROC 102470 1% 59% 63
3 ENERGY SOURCE MECH ENGN 64989 0% 87% 27
4 FUELS ENGINES EMISS 53360 0% 47% 41
5 INTER IAL CATALYSIS 48534 0% 32% 55
6 VN IPATIEFF 43831 0% 55% 29
7 NEW FUELS VEHICLE TECHNOL 42859 0% 52% 30
8 AUTOMOT CATALYSIS 35371 0% 80% 16
9 TIANJIN PL CATALYSIS SCI ENGN 31015 0% 32% 35
10 NEMAS 30669 0% 34% 33

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 APPLIED CATALYSIS B-ENVIRONMENTAL 530726 11% 16% 1240
2 CATALYSIS TODAY 227561 8% 9% 925
3 TOPICS IN CATALYSIS 149095 3% 14% 398
4 JOURNAL OF CATALYSIS 99293 6% 5% 676
5 CATALYSIS LETTERS 75548 4% 6% 457
6 CATALYSIS COMMUNICATIONS 39365 2% 5% 269
7 STUDIES IN SURFACE SCIENCE AND CATALYSIS 34210 2% 4% 280
8 CATALYSIS SCIENCE & TECHNOLOGY 22654 1% 5% 159
9 APPLIED CATALYSIS A-GENERAL 21514 3% 3% 305
10 CHINESE JOURNAL OF CATALYSIS 20117 1% 4% 165

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SELECTIVE CATALYTIC REDUCTION 1691241 6% 84% 728 Search SELECTIVE+CATALYTIC+REDUCTION Search SELECTIVE+CATALYTIC+REDUCTION
2 SCR 913596 4% 67% 497 Search SCR Search SCR
3 NH3 SCR 637767 2% 95% 244 Search NH3+SCR Search NH3+SCR
4 N2O DECOMPOSITION 566227 2% 78% 262 Search N2O+DECOMPOSITION Search N2O+DECOMPOSITION
5 FE ZSM 5 501706 2% 89% 203 Search FE+ZSM+5 Search FE+ZSM+5
6 DENOX 493668 2% 67% 266 Search DENOX Search DENOX
7 SOOT OXIDATION 442928 2% 83% 192 Search SOOT+OXIDATION Search SOOT+OXIDATION
8 NOX REDUCTION 405293 2% 59% 250 Search NOX+REDUCTION Search NOX+REDUCTION
9 CU ZSM 5 404938 2% 84% 175 Search CU+ZSM+5 Search CU+ZSM+5
10 SOOT COMBUSTION 329824 1% 90% 132 Search SOOT+COMBUSTION Search SOOT+COMBUSTION

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
1 540 CO OXIDATION//CERIA//CATALYTIC COMBUSTION
2 2621 CLAUS PROCESS//SULFUR RECOVERY//SULFUR TRANSFER CATALYST
3 1057 OXIDATIVE DEHYDROGENATION//OXIDATIVE COUPLING OF METHANE//AMMOXIDATION
4 89 ZEOLITE//ZEOLITES//MICROPOROUS AND MESOPOROUS MATERIALS
5 3321 ELEMENTAL MERCURY//MERCURY OXIDATION//MERCURY CAPTURE
6 4278 ADSORPTION AND DESORPTION OF CO2//CO2 RECOVERY RATE//REQUIRED CONSUMPTION ENERGY
7 2286 SULFATED ZIRCONIA//N BUTANE ISOMERIZATION//SOLID SUPERACID
8 607 DIESEL ENGINE//EMISSIONS//EXHAUST EMISSIONS
9 401 FISCHER TROPSCH SYNTHESIS//JOURNAL OF CATALYSIS//FISCHER TROPSCH
10 576 STEAM REFORMING//METHANOL SYNTHESIS//AUTOTHERMAL REFORMING

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