Class information for:
Level 1: LEAN NOX TRAP//NOX STORAGE//NOX STORAGE REDUCTION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
9954 1104 32.5 78%


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
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
18 3       JOURNAL OF CATALYSIS//CHEMISTRY, PHYSICAL//APPLIED CATALYSIS A-GENERAL 120683
91 2             CO OXIDATION//APPLIED CATALYSIS B-ENVIRONMENTAL//SELECTIVE CATALYTIC REDUCTION 26517
9954 1                   LEAN NOX TRAP//NOX STORAGE//NOX STORAGE REDUCTION 1104

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 LEAN NOX TRAP authKW 2660886 10% 90% 107
2 NOX STORAGE authKW 2380770 10% 80% 107
3 NOX STORAGE REDUCTION authKW 1779399 6% 93% 69
4 NSR authKW 1146044 5% 75% 55
5 NOX STORAGE AND REDUCTION authKW 1137885 4% 86% 48
6 NOX TRAP authKW 956052 4% 89% 39
7 NOX STORAGE REDUCTION CATALYST authKW 802951 3% 97% 30
8 NOX STORAGE CATALYST authKW 747698 3% 97% 28
9 PT BA AL2O3 authKW 732097 3% 88% 30
10 NO OXIDATION authKW 562427 6% 33% 62

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Chemistry, Physical 16324 78% 0% 865
2 Engineering, Chemical 15368 49% 0% 540
3 Chemistry, Applied 8500 26% 0% 291
4 Engineering, Environmental 7074 20% 0% 226
5 Nanoscience & Nanotechnology 228 6% 0% 64
6 Transportation Science & Technology 74 1% 0% 13
7 Engineering, Petroleum 56 1% 0% 9
8 Materials Science, Multidisciplinary 22 7% 0% 77
9 Energy & Fuels 14 2% 0% 23
10 Environmental Sciences 13 4% 0% 41

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 FUELS ENGINES EMISS 358517 3% 39% 33
2 INTER IAL CATALYSIS 357212 4% 27% 47
3 CATALYSIS CATALYT PROC 273964 3% 32% 31
4 COMPETENCE CATALYSIS 241561 5% 15% 58
5 NEMAS 125708 2% 22% 21
6 NEMAS EXCELLENCE 110629 0% 100% 4
7 ENERGY SAVING SYST TEAM 88502 0% 80% 4
8 TIANJIN CATALYSIS SCI ENGN 69138 0% 50% 5
9 ENGN CHEM FERTILIZE CATALYST 55315 0% 100% 2
10 ENGN MECH DIRECT 55315 0% 100% 2

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 APPLIED CATALYSIS B-ENVIRONMENTAL 139117 18% 3% 194
2 TOPICS IN CATALYSIS 123293 10% 4% 112
3 CATALYSIS TODAY 63877 14% 2% 153
4 CATALYSIS LETTERS 8241 4% 1% 47
5 JOURNAL OF CATALYSIS 7162 5% 0% 57
6 CATALYSIS SURVEYS FROM JAPAN 3550 0% 4% 3
7 JOURNAL OF PHYSICAL CHEMISTRY C 2563 5% 0% 55
8 CHINESE JOURNAL OF CATALYSIS 1971 1% 0% 16
9 CATALYSIS SCIENCE & TECHNOLOGY 1963 1% 1% 14
10 CATALYSIS COMMUNICATIONS 1847 2% 0% 18

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 LEAN NOX TRAP 2660886 10% 90% 107 Search LEAN+NOX+TRAP Search LEAN+NOX+TRAP
2 NOX STORAGE 2380770 10% 80% 107 Search NOX+STORAGE Search NOX+STORAGE
3 NOX STORAGE REDUCTION 1779399 6% 93% 69 Search NOX+STORAGE+REDUCTION Search NOX+STORAGE+REDUCTION
4 NSR 1146044 5% 75% 55 Search NSR Search NSR
5 NOX STORAGE AND REDUCTION 1137885 4% 86% 48 Search NOX+STORAGE+AND+REDUCTION Search NOX+STORAGE+AND+REDUCTION
6 NOX TRAP 956052 4% 89% 39 Search NOX+TRAP Search NOX+TRAP
7 NOX STORAGE REDUCTION CATALYST 802951 3% 97% 30 Search NOX+STORAGE+REDUCTION+CATALYST Search NOX+STORAGE+REDUCTION+CATALYST
8 NOX STORAGE CATALYST 747698 3% 97% 28 Search NOX+STORAGE+CATALYST Search NOX+STORAGE+CATALYST
9 PT BA AL2O3 732097 3% 88% 30 Search PT+BA+AL2O3 Search PT+BA+AL2O3
10 NO OXIDATION 562427 6% 33% 62 Search NO+OXIDATION Search NO+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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 ROY, S , BAIKER, A , (2009) NOX STORAGE-REDUCTION CATALYSIS: FROM MECHANISM AND MATERIALS PROPERTIES TO STORAGE-REDUCTION PERFORMANCE.CHEMICAL REVIEWS. VOL. 109. ISSUE 9. P. 4054 -4091 236 78% 232
2 LIU, G , GAO, PX , (2011) A REVIEW OF NOX STORAGE/REDUCTION CATALYSTS: MECHANISM, MATERIALS AND DEGRADATION STUDIES.CATALYSIS SCIENCE & TECHNOLOGY. VOL. 1. ISSUE 4. P. 552 -568 82 70% 63
3 JABLONSKA, M , GIMENO, AEP , WEGRZYN, A , CHMIELARZ, L , (2014) A SHORT REVIEW ABOUT NOX STORAGE/REDUCTION CATALYSTS BASED ON METAL OXIDES AND HYDROTALCITE-TYPE ANIONIC CLAYS.ACTA GEODYNAMICA ET GEOMATERIALIA. VOL. 11. ISSUE 2. P. 175-186 68 80% 1
4 GUO, LH , LIU, Y , MENG, M , (2009) NOX STORAGE-REDUCTION CATALYSTS USED FOR LEAN-BURN NOX REMOVAL.PROGRESS IN CHEMISTRY. VOL. 21. ISSUE 5. P. 964-970 65 94% 2
5 EPLING, WS , CAMPBELL, LE , YEZERETS, A , CURRIER, NW , PARKS, JE , (2004) OVERVIEW OF THE FUNDAMENTAL REACTIONS AND DEGRADATION MECHANISMS OF NOX STORAGE/REDUCTION CATALYSTS.CATALYSIS REVIEWS-SCIENCE AND ENGINEERING. VOL. 46. ISSUE 2. P. 163 -245 70 58% 562
6 HU, Z , SUN, KQ , XU, BQ , (2011) NOX STORAGE-REDUCTION CATALYSIS AND STRUCTURE-PERFORMANCE RELATIONSHIP OF PT-BAO CATALYST.CHINESE JOURNAL OF CATALYSIS. VOL. 32. ISSUE 1. P. 17 -26 60 92% 1
7 CHAUGULE, SS , YEZERETS, A , CURRIER, NW , RIBEIRO, FH , DELGASS, WN , (2010) 'FAST' NOX STORAGE ON PT/BAO/GAMMA-AL2O3 LEAN NOX TRAPS WITH NO2+O-2 AND NO + O-2: EFFECTS OF PT, BA LOADING.CATALYSIS TODAY. VOL. 151. ISSUE 3-4. P. 291 -303 55 93% 13
8 JI, YY , EASTERLING, V , GRAHAM, U , FISK, C , CROCKER, M , CHOI, JS , (2011) EFFECT OF AGING ON THE NOX STORAGE AND REGENERATION CHARACTERISTICS OF FULLY FORMULATED LEAN NOX TRAP CATALYSTS.APPLIED CATALYSIS B-ENVIRONMENTAL. VOL. 103. ISSUE 3-4. P. 413 -427 57 81% 14
9 FORZATTI, P , LIETTI, L , CASTOLDI, L , (2015) STORAGE AND REDUCTION OF NO (X) OVER LNT CATALYSTS.CATALYSIS LETTERS. VOL. 145. ISSUE 2. P. 483 -504 65 66% 2
10 MAEDA, N , URAKAWA, A , SHARMA, R , BAIKER, A , (2011) INFLUENCE OF BA PRECURSOR ON STRUCTURAL AND CATALYTIC PROPERTIES OF PT-BA/ALUMINA NOX STORAGE-REDUCTION CATALYST.APPLIED CATALYSIS B-ENVIRONMENTAL. VOL. 103. ISSUE 1-2. P. 154-162 53 90% 4

Classes with closest relation at Level 1


Rank Class id link
1 14416 CATALYTIC CONVERTER//LIGHT OFF//HYDROCARBON TRAP
2 6266 SOOT OXIDATION//SOOT COMBUSTION//DIESEL PARTICULATE FILTER
3 652 CU ZSM 5//AG AL2O3//HC SCR
4 2070 SELECTIVE CATALYTIC REDUCTION//NH3 SCR//SCR
5 2569 OXYGEN STORAGE CAPACITY//THREE WAY CATALYST//CERIA ZIRCONIA
6 30278 TEMPORAL ANALYSIS OF PRODUCTS//TEMPORAL ANALYSIS OF PRODUCTS TAP//PULSE RESPONSE EXPERIMENT
7 28197 UREA SCR//UREA WATER SOLUTION//HNCO HYDROLYSIS
8 16112 SULFUR TRANSFER CATALYST//SO2 ADSORPTION//ENGN TECHNOL FLUE GAS DESULFURIZAT
9 5811 METHANE COMBUSTION//CATALYTIC COMBUSTION//HEXAALUMINATE
10 34201 UMR 5634//HIGH VACUUM CELL//PLATINUM SILICA CATALYSTS

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