Class information for:
Level 2: PROTON CONDUCTIVITY//PROTON EXCHANGE MEMBRANE//METHANOL PERMEABILITY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1557 7387 34.4 80%


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
87 3       JOURNAL OF MEMBRANE SCIENCE//FUEL CELL//DESALINATION 77701
1557 2             PROTON CONDUCTIVITY//PROTON EXCHANGE MEMBRANE//METHANOL PERMEABILITY 7387
24 1                   PROTON CONDUCTIVITY//PROTON EXCHANGE MEMBRANE//METHANOL PERMEABILITY 5177
5122 1                   POLYBENZIMIDAZOLE//PBI//HIGH TEMPERATURE PEMFC 1669
18672 1                   PHOSPHOSILICATE GEL//MEDIUM TEMPERATURE RANGE//H 2 O 2 FUEL CELL 541

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 PROTON CONDUCTIVITY authKW 2904648 14% 70% 1008
2 PROTON EXCHANGE MEMBRANE authKW 2221209 11% 68% 785
3 METHANOL PERMEABILITY authKW 882284 3% 86% 248
4 POLYBENZIMIDAZOLE authKW 854896 4% 71% 292
5 POLYMER ELECTROLYTE MEMBRANE authKW 724303 4% 61% 288
6 FUEL CELL authKW 572566 15% 13% 1110
7 SULFONATED POLYIMIDE authKW 468461 2% 85% 133
8 DIRECT METHANOL FUEL CELL authKW 441511 6% 26% 417
9 NAFION authKW 418334 5% 27% 372
10 SPEEK authKW 329189 1% 80% 99

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 Electrochemistry 85388 29% 1% 2135
2 Polymer Science 57490 34% 1% 2477
3 Energy & Fuels 27443 20% 0% 1478
4 Chemistry, Physical 14682 31% 0% 2298
5 Engineering, Chemical 6931 14% 0% 1026
6 Materials Science, Multidisciplinary 5128 21% 0% 1553
7 Materials Science, Coatings & Films 1417 4% 0% 267
8 Materials Science, Ceramics 912 3% 0% 189
9 Chemistry, Multidisciplinary 594 9% 0% 659
10 Physics, Condensed Matter 530 7% 0% 494

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 ALAN G MACDIARMID 112418 2% 18% 155
2 FUEL CELL 80577 3% 10% 189
3 PROTON EXCHANGE MEMBRANE FUEL CELL KEY MAT TECH 65064 0% 75% 21
4 GRP POLYME CONDUCTEURS ION 53712 0% 100% 13
5 FUEL CELL NANOMAT 47446 1% 25% 46
6 FUEL CELLS NANOMAT 42494 0% 86% 12
7 ENGN SYNTHET IN SPECIAL CHEM FIBER 37186 0% 100% 9
8 CLEAN ENERGY 26630 1% 7% 97
9 DIP SCI TECNOL CHIM 26378 0% 30% 21
10 CHEM POLYMER MAT CHEM 26108 0% 45% 14

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 JOURNAL OF MEMBRANE SCIENCE 150437 10% 5% 722
2 FUEL CELLS 100555 2% 14% 171
3 JOURNAL OF POWER SOURCES 77889 9% 3% 657
4 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 38538 6% 2% 431
5 SOLID STATE IONICS 28190 4% 2% 301
6 JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS 15526 1% 7% 54
7 ELECTROCHIMICA ACTA 11886 4% 1% 284
8 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 7817 3% 1% 244
9 POLYMER 7067 3% 1% 216
10 MACROMOLECULES 7043 4% 1% 263

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 PROTON CONDUCTIVITY 2904648 14% 70% 1008 Search PROTON+CONDUCTIVITY Search PROTON+CONDUCTIVITY
2 PROTON EXCHANGE MEMBRANE 2221209 11% 68% 785 Search PROTON+EXCHANGE+MEMBRANE Search PROTON+EXCHANGE+MEMBRANE
3 METHANOL PERMEABILITY 882284 3% 86% 248 Search METHANOL+PERMEABILITY Search METHANOL+PERMEABILITY
4 POLYBENZIMIDAZOLE 854896 4% 71% 292 Search POLYBENZIMIDAZOLE Search POLYBENZIMIDAZOLE
5 POLYMER ELECTROLYTE MEMBRANE 724303 4% 61% 288 Search POLYMER+ELECTROLYTE+MEMBRANE Search POLYMER+ELECTROLYTE+MEMBRANE
6 FUEL CELL 572566 15% 13% 1110 Search FUEL+CELL Search FUEL+CELL
7 SULFONATED POLYIMIDE 468461 2% 85% 133 Search SULFONATED+POLYIMIDE Search SULFONATED+POLYIMIDE
8 DIRECT METHANOL FUEL CELL 441511 6% 26% 417 Search DIRECT+METHANOL+FUEL+CELL Search DIRECT+METHANOL+FUEL+CELL
9 NAFION 418334 5% 27% 372 Search NAFION Search NAFION
10 SPEEK 329189 1% 80% 99 Search SPEEK Search SPEEK

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 ZHANG, HW , SHEN, PK , (2012) RECENT DEVELOPMENT OF POLYMER ELECTROLYTE MEMBRANES FOR FUEL CELLS.CHEMICAL REVIEWS. VOL. 112. ISSUE 5. P. 2780 -2832 608 80% 451
2 ZHANG, HW , SHEN, PK , (2012) ADVANCES IN THE HIGH PERFORMANCE POLYMER ELECTROLYTE MEMBRANES FOR FUEL CELLS.CHEMICAL SOCIETY REVIEWS. VOL. 41. ISSUE 6. P. 2382 -2394 337 85% 129
3 BAKANGURA, E , WU, L , GE, L , YANG, ZJ , XU, TW , (2016) MIXED MATRIX PROTON EXCHANGE MEMBRANES FOR FUEL CELLS: STATE OF THE ART AND PERSPECTIVES.PROGRESS IN POLYMER SCIENCE. VOL. 57. ISSUE . P. 103 -152 373 71% 6
4 KRAYTSBERG, A , EIN-ELI, Y , (2014) REVIEW OF ADVANCED MATERIALS FOR PROTON EXCHANGE MEMBRANE FUEL CELLS.ENERGY & FUELS. VOL. 28. ISSUE 12. P. 7303 -7330 309 77% 43
5 KUSOGLU, A , WEBER, AZ , (2017) NEW INSIGHTS INTO PERFLUORINATED SULFONIC-ACID LONOMERS.CHEMICAL REVIEWS. VOL. 117. ISSUE 3. P. 987 -1104 495 59% 0
6 PARK, CH , LEE, CH , GUIVER, MD , LEE, YM , (2011) SULFONATED HYDROCARBON MEMBRANES FOR MEDIUM-TEMPERATURE AND LOW-HUMIDITY PROTON EXCHANGE MEMBRANE FUEL CELLS (PEMFCS).PROGRESS IN POLYMER SCIENCE. VOL. 36. ISSUE 11. P. 1443 -1498 182 85% 250
7 LI, QF , JENSEN, JO , SAVINELL, RF , BJERRUM, NJ , (2009) HIGH TEMPERATURE PROTON EXCHANGE MEMBRANES BASED ON POLYBENZIMIDAZOLES FOR FUEL CELLS.PROGRESS IN POLYMER SCIENCE. VOL. 34. ISSUE 5. P. 449 -477 164 81% 568
8 ASENSIO, JA , SANCHEZ, EM , GOMEZ-ROMERO, P , (2010) PROTON-CONDUCTING MEMBRANES BASED ON BENZIMIDAZOLE POLYMERS FOR HIGH-TEMPERATURE PEM FUEL CELLS. A CHEMICAL QUEST.CHEMICAL SOCIETY REVIEWS. VOL. 39. ISSUE 8. P. 3210 -3239 183 83% 252
9 PEIGHAMBARDOUST, SJ , ROWSHANZAMIR, S , AMJADI, M , (2010) REVIEW OF THE PROTON EXCHANGE MEMBRANES FOR FUEL CELL APPLICATIONS.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 35. ISSUE 17. P. 9349 -9384 143 75% 492
10 LABERTY-ROBERT, C , VALLE, K , PEREIRA, F , SANCHEZ, C , (2011) DESIGN AND PROPERTIES OF FUNCTIONAL HYBRID ORGANIC-INORGANIC MEMBRANES FOR FUEL CELLS.CHEMICAL SOCIETY REVIEWS. VOL. 40. ISSUE 2. P. 961 -1005 185 68% 170

Classes with closest relation at Level 2


Rank Class id link
1 3375 IONOMERS//ETHYLENE IONOMER//IONIC OZONIDES
2 46 OXYGEN REDUCTION REACTION//FUEL CELL//ELECTROCHEMISTRY
3 2397 ELECTRODIALYSIS//BIPOLAR MEMBRANE//ION EXCHANGE MEMBRANE
4 2381 VANADIUM REDOX FLOW BATTERY//REDOX FLOW BATTERY//FLOW BATTERY
5 3849 ETHYL NITRATE DIMETHYL SULFOXIDE//CHEM PLAST DEV//QUATERNIZED POLYSULFONES
6 979 POLYMER ELECTROLYTE//ELECTROSPINNING//IONIC CONDUCTIVITY
7 1149 RADIATION GRAFTING//SOLID STATE ENGN//PLASMA TREATMENT
8 1083 PERVAPORATION//JOURNAL OF MEMBRANE SCIENCE//GAS SEPARATION
9 956 POLYIMIDE//ORGAN POLYMER CHEM//POLYAMIDE IMIDE
10 969 POLYETHYLENE TEREPHTHALATE//POLYMER SCIENCE//POLYTRIMETHYLENE TEREPHTHALATE

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