Class information for:
Level 1: PROTON CONDUCTIVITY//PROTON EXCHANGE MEMBRANE//METHANOL PERMEABILITY

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
42 3       ELECTROCHEMISTRY//FUEL CELL//JOURNAL OF ELECTROANALYTICAL CHEMISTRY 105165
19 2             FUEL CELL//OXYGEN REDUCTION REACTION//DIRECT METHANOL FUEL CELL 36706
110 1                   PROTON CONDUCTIVITY//PROTON EXCHANGE MEMBRANE//METHANOL PERMEABILITY 4414

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PROTON CONDUCTIVITY authKW 3016331 18% 53% 801
2 PROTON EXCHANGE MEMBRANE authKW 2936427 16% 58% 705
3 METHANOL PERMEABILITY authKW 1462296 6% 84% 245
4 POLYMER ELECTROLYTE MEMBRANE authKW 758606 5% 47% 228
5 SULFONATED POLYIMIDE authKW 756568 3% 82% 129
6 DIRECT METHANOL FUEL CELL authKW 733342 9% 25% 415
7 SULFONATED POLYETHER ETHER KETONE authKW 568310 3% 65% 123
8 SPEEK authKW 535549 2% 77% 98
9 COMPOSITE MEMBRANE authKW 466973 7% 21% 313
10 FUEL CELL authKW 466814 18% 8% 780

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Electrochemistry 53126 30% 1% 1314
2 Polymer Science 50669 40% 0% 1782
3 Energy & Fuels 19086 22% 0% 967
4 Engineering, Chemical 7958 19% 0% 826
5 Chemistry, Physical 7001 28% 0% 1246
6 Materials Science, Multidisciplinary 3275 22% 0% 961
7 Materials Science, Coatings & Films 702 3% 0% 147
8 Chemistry, Multidisciplinary 395 9% 0% 407
9 Nanoscience & Nanotechnology 285 4% 0% 168
10 Physics, Condensed Matter 243 6% 0% 271

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ALAN G MACDIARMID 147528 3% 15% 138
2 PROTON EXCHANGE MEMBRANE FUEL CELL KEY MAT TECH 82587 0% 64% 18
3 FUEL CELLS NANOMAT 73419 0% 86% 12
4 ENGN SYNTHET IN SPECIAL CHEM FIBER 64245 0% 100% 9
5 FUEL CELL NANOMAT 60538 1% 21% 41
6 FUEL CELL 60171 3% 7% 128
7 CHEM PROC ENVIRONM TECHNOL 45099 1% 10% 65
8 ELE OMEMBRANE PROC 39679 0% 25% 22
9 CLEAN ENERGY 37086 2% 6% 90
10 CHEM POLYMER MAT CHEM 36541 0% 39% 13

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF MEMBRANE SCIENCE 179425 14% 4% 609
2 JOURNAL OF POWER SOURCES 65174 11% 2% 465
3 FUEL CELLS 40839 2% 7% 85
4 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 26964 7% 1% 287
5 SOLID STATE IONICS 12566 3% 1% 154
6 JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS 10199 1% 4% 34
7 MACROMOLECULAR RESEARCH 8712 1% 2% 52
8 ELECTROCHIMICA ACTA 5784 4% 1% 155
9 JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 5328 3% 1% 112
10 POLYMER 5272 3% 1% 143

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PROTON CONDUCTIVITY 3016331 18% 53% 801 Search PROTON+CONDUCTIVITY Search PROTON+CONDUCTIVITY
2 PROTON EXCHANGE MEMBRANE 2936427 16% 58% 705 Search PROTON+EXCHANGE+MEMBRANE Search PROTON+EXCHANGE+MEMBRANE
3 METHANOL PERMEABILITY 1462296 6% 84% 245 Search METHANOL+PERMEABILITY Search METHANOL+PERMEABILITY
4 POLYMER ELECTROLYTE MEMBRANE 758606 5% 47% 228 Search POLYMER+ELECTROLYTE+MEMBRANE Search POLYMER+ELECTROLYTE+MEMBRANE
5 SULFONATED POLYIMIDE 756568 3% 82% 129 Search SULFONATED+POLYIMIDE Search SULFONATED+POLYIMIDE
6 DIRECT METHANOL FUEL CELL 733342 9% 25% 415 Search DIRECT+METHANOL+FUEL+CELL Search DIRECT+METHANOL+FUEL+CELL
7 SULFONATED POLYETHER ETHER KETONE 568310 3% 65% 123 Search SULFONATED+POLYETHER+ETHER+KETONE Search SULFONATED+POLYETHER+ETHER+KETONE
8 SPEEK 535549 2% 77% 98 Search SPEEK Search SPEEK
9 COMPOSITE MEMBRANE 466973 7% 21% 313 Search COMPOSITE+MEMBRANE Search COMPOSITE+MEMBRANE
10 FUEL CELL 466814 18% 8% 780 Search FUEL+CELL Search FUEL+CELL

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 1


rank cluster_id2 link
1 6101 POLYBENZIMIDAZOLE//PBI//HT PEMFC
2 4656 NAFION//GRP POLYME CONDUCTEURS ION//PERFLUOROSULFONATED IONOMER
3 21345 PHOSPHOSILICATE GEL//MEDIUM TEMPERATURE RANGE//H 2 O 2 FUEL CELL
4 36704 IONCONDUCTIVE MEMBRANE//DRILLING FLUID//PROTON TRANSPORT NUMBER
5 8592 ANION EXCHANGE MEMBRANE//ALKALINE FUEL CELL//ALKALINE ANION EXCHANGE MEMBRANE
6 4958 DIRECT METHANOL FUEL CELL//METHANOL CROSSOVER//DMFC
7 25175 SHI MOGYO KU//ISONICOTINIC ACID N OXIDE//PROTON CONDUCTION
8 7862 CATALYST LAYER//MEMBRANE ELECTRODE ASSEMBLY//CATHODE CATALYST LAYER
9 21980 VISIBLE LIGHT PHOTOCHROMISM//RARE EARTH CO PERMEATION//RARE EARTHS CO PERMEATION
10 16710 IQSC//STARCH CHITOSAN BLEND//PROTON BATTERY

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