{"id":"https://openalex.org/A5044623923","orcid":null,"observed_orcids":[],"display_name":"Bousselham Echchahed","raw_author_names":["B. ECHCHAHED","B. Ech-Chahed","B. Echchahed","Bousselham Echchahed","Ech Chahed, Bousselham","Echchahed Bousselham","Echchahed, B."],"full_name":"Bousselham Echchahed","works_count":20,"cited_by_count":490,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":8,"i10_index":8},"ids":{"openalex":"https://openalex.org/A5044623923","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1294671590","ror":"https://ror.org/02feahw73","display_name":"Centre National de la Recherche Scientifique","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},"years":[1988]},{"institution":{"id":"https://openalex.org/I204778367","ror":"https://ror.org/05xg72x27","display_name":"Norwegian University of Science and Technology","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I3121676899","ror":"https://ror.org/02wj89n04","display_name":"Universit\u00e9 Ibn-Tofail","country_code":"MA","type":"education","lineage":["https://openalex.org/I3121676899"]},"years":[2015,2013,2001,2000]},{"institution":{"id":"https://openalex.org/I43406934","ror":"https://ror.org/04sjchr03","display_name":"Universit\u00e9 Laval","country_code":"CA","type":"education","lineage":["https://openalex.org/I43406934"]},"years":[2016,2007,2005,2001,2000,1998,1997,1996]},{"institution":{"id":"https://openalex.org/I90183372","ror":"https://ror.org/04vfs2w97","display_name":"Universit\u00e9 de Lorraine","country_code":"FR","type":"education","lineage":["https://openalex.org/I90183372"]},"years":[1988]}],"last_known_institutions":[{"id":"https://openalex.org/I43406934","ror":"https://ror.org/04sjchr03","display_name":"Universit\u00e9 Laval","country_code":"CA","type":"education","lineage":["https://openalex.org/I43406934"]}],"topics":[{"id":"https://openalex.org/T10735","display_name":"Mesoporous Materials and Catalysis","count":11,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10353","display_name":"Zeolite Catalysis and Synthesis","count":9,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10607","display_name":"Magnetic and transport properties of perovskites and related materials","count":5,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11878","display_name":"Solid-state spectroscopy and crystallography","count":4,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11852","display_name":"Clay minerals and soil interactions","count":3,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10735","display_name":"Mesoporous Materials and Catalysis","value":5.86e-05,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10353","display_name":"Zeolite Catalysis and Synthesis","value":3.69e-05,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13105","display_name":"Synthesis and pharmacology of benzodiazepine derivatives","value":2.89e-05,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12195","display_name":"Aerogels and thermal insulation","value":2.71e-05,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11852","display_name":"Clay minerals and soil interactions","value":2.38e-05,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.931993842124939},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7841072082519531},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.5550791621208191},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.46206364035606384},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.2663465142250061}],"counts_by_year":[{"year":1987,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1988,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":11},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2015,"works_count":2,"oa_works_count":2,"cited_by_count":13},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":16},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":24}],"display_name_alternatives":["B. ECHCHAHED","B. Ech-Chahed","B. Echchahed","Bousselham Echchahed","Ech Chahed, Bousselham","Echchahed Bousselham","Echchahed, B."],"block_key":"b echchahed","works_api_url":"https://api.openalex.org/works?filter=author.id:A5044623923","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5044623923","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}