Class information for:
Level 1: COMPLEX HYDRIDES//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS

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
382 3       HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE ALLOY 33830
320 2             HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE ALLOY 18564
1155 1                   COMPLEX HYDRIDES//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS 2845

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 COMPLEX HYDRIDES authKW 1577217 6% 80% 179
2 HYDROGEN STORAGE authKW 973688 21% 15% 595
3 HYDROGEN STORAGE MATERIALS authKW 881063 10% 28% 287
4 LIBH4 authKW 853305 3% 90% 86
5 ALANATES authKW 737849 3% 87% 77
6 LITHIUM BOROHYDRIDE authKW 671091 3% 77% 79
7 NAALH4 authKW 597294 2% 88% 61
8 SODIUM ALANATE authKW 365204 2% 63% 52
9 LIALH4 authKW 354420 1% 80% 40
10 BOROHYDRIDE authKW 301588 3% 30% 91

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Physical 24242 60% 0% 1720
2 Materials Science, Multidisciplinary 12091 46% 0% 1317
3 Electrochemistry 11251 17% 0% 494
4 Energy & Fuels 11160 21% 0% 595
5 Metallurgy & Metallurgical Engineering 10171 21% 0% 584
6 Nanoscience & Nanotechnology 6570 17% 0% 489
7 Chemistry, Inorganic & Nuclear 612 6% 0% 176
8 Physics, Atomic, Molecular & Chemical 400 6% 0% 169
9 Chemistry, Multidisciplinary 317 10% 0% 281
10 Physics, Condensed Matter 301 8% 0% 215

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ADV MAT PLICAT BATTERIES ZHEJIANG PRO 141656 3% 18% 72
2 ENVIRONM ENERGY MOBIL 135016 1% 76% 16
3 PAVIA H2 113269 1% 68% 15
4 MAT CRYSTALLOG 107779 2% 17% 56
5 HYDROGEN ENERGY 92719 2% 15% 55
6 INTERDISCIPLINARY NANOSCI INANO 68513 3% 6% 96
7 SWISS FED S MAT TESTING HYDROGEN ENERG 66457 0% 100% 6
8 MOBIL ENVIRONM ENERGY 59067 0% 67% 8
9 SERV SONANCIA MAGNET NUCL SERMN 56961 0% 86% 6
10 138 49840 0% 75% 6

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 95928 15% 2% 432
2 JOURNAL OF ALLOYS AND COMPOUNDS 44824 15% 1% 416
3 JOURNAL OF PHYSICAL CHEMISTRY C 43679 13% 1% 364
4 JOURNAL OF MATERIALS CHEMISTRY A 3110 2% 1% 57
5 PHYSICAL CHEMISTRY CHEMICAL PHYSICS 2801 3% 0% 88
6 JOURNAL OF POWER SOURCES 1134 2% 0% 51
7 DALTON TRANSACTIONS 1093 2% 0% 45
8 RARE METAL MATERIALS AND ENGINEERING 1071 1% 0% 36
9 MATERIALS TRANSACTIONS 976 1% 0% 26
10 ENERGY & ENVIRONMENTAL SCIENCE 817 1% 1% 15

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 COMPLEX HYDRIDES 1577217 6% 80% 179 Search COMPLEX+HYDRIDES Search COMPLEX+HYDRIDES
2 HYDROGEN STORAGE 973688 21% 15% 595 Search HYDROGEN+STORAGE Search HYDROGEN+STORAGE
3 HYDROGEN STORAGE MATERIALS 881063 10% 28% 287 Search HYDROGEN+STORAGE+MATERIALS Search HYDROGEN+STORAGE+MATERIALS
4 LIBH4 853305 3% 90% 86 Search LIBH4 Search LIBH4
5 ALANATES 737849 3% 87% 77 Search ALANATES Search ALANATES
6 LITHIUM BOROHYDRIDE 671091 3% 77% 79 Search LITHIUM+BOROHYDRIDE Search LITHIUM+BOROHYDRIDE
7 NAALH4 597294 2% 88% 61 Search NAALH4 Search NAALH4
8 SODIUM ALANATE 365204 2% 63% 52 Search SODIUM+ALANATE Search SODIUM+ALANATE
9 LIALH4 354420 1% 80% 40 Search LIALH4 Search LIALH4
10 BOROHYDRIDE 301588 3% 30% 91 Search BOROHYDRIDE Search BOROHYDRIDE

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 26487 ALUMINUM HYDRIDE//ALANE//ALH3
2 20620 NAMGH3//PEROVSKITE TYPE HYDRIDE//COMPLEX TRANSITION METAL HYDRIDE
3 559 MAGNESIUM HYDRIDE//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS
4 6161 AMMONIA BORANE//HYDRAZINE BORANE//AMINE BORANE
5 10268 SODIUM BOROHYDRIDE//HYDROGEN GENERATION//NABH4
6 1874 HYDROGEN STORAGE//HYDROGEN ADSORPTION//KUBAS INTERACTION
7 29402 SOLID HYDROXIDES//AC I//ALKALI METAL HYDROGENSULFIDES
8 5795 METAL HYDRIDES//LANI5//HYDROGEN COMPRESSOR
9 22630 ORGANOHYDROBORATE//CYCLIC ORGANOHYDROBORATE//TETRAHYDROBORATE COMPLEXES
10 17474 AMMONIA DECOMPOSITION//AMMONIA ELECTRO OXIDATION//AMMONIA ELECTROLYSIS

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