{"id":"https://openalex.org/A5023979760","orcid":"https://orcid.org/0000-0002-1329-0815","observed_orcids":["https://orcid.org/0000-0002-1329-0815"],"display_name":"Holger B. Friedrich","raw_author_names":["Friedrich, H. B.","Friedrich, H.B.","Friedrich, Holger B.","H. B. Friedrich","H. FRIEDRICH","H. Friedrich","H.B. Friedrich","Holger B Friedrich","Holger B. Friedrich","Holger Friedrich"],"full_name":"Friedrich, Holger B.","works_count":543,"cited_by_count":4187,"summary_stats":{"2yr_mean_citedness":2.71875,"h_index":33,"i10_index":120},"ids":{"openalex":"https://openalex.org/A5023979760","orcid":"https://orcid.org/0000-0002-1329-0815","observed_orcids":["https://orcid.org/0000-0002-1329-0815"]},"affiliations":[{"institution":{"id":"https://openalex.org/I157614274","ror":"https://ror.org/03p74gp79","display_name":"University of Cape Town","country_code":"ZA","type":"education","lineage":["https://openalex.org/I157614274"]},"years":[1993,1991,1990,1989]},{"institution":{"id":"https://openalex.org/I24027795","ror":"https://ror.org/04z6c2n17","display_name":"University of Johannesburg","country_code":"ZA","type":"education","lineage":["https://openalex.org/I24027795"]},"years":[2012]},{"institution":{"id":"https://openalex.org/I4210158088","ror":"https://ror.org/05gnv4a66","display_name":"Fraunhofer Institute for Silicate Research","country_code":"DE","type":"facility","lineage":["https://openalex.org/I4210158088","https://openalex.org/I4923324"]},"years":[2024,2022]},{"institution":{"id":"https://openalex.org/I4923324","ror":"https://ror.org/05hkkdn48","display_name":"Fraunhofer-Gesellschaft","country_code":"DE","type":"government","lineage":["https://openalex.org/I4923324"]},"years":[2024,2022,2019]},{"institution":{"id":"https://openalex.org/I57085157","ror":"https://ror.org/05kfstc28","display_name":"Sardar Patel University","country_code":"IN","type":"education","lineage":["https://openalex.org/I57085157"]},"years":[2018]},{"institution":{"id":"https://openalex.org/I62916508","ror":"https://ror.org/02kkvpp62","display_name":"Technical University of Munich","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]},"years":[1994]},{"institution":{"id":"https://openalex.org/I63966007","ror":"https://ror.org/042nb2s44","display_name":"Massachusetts Institute of Technology","country_code":"US","type":"education","lineage":["https://openalex.org/I63966007"]},"years":[1994]},{"institution":{"id":"https://openalex.org/I78650965","ror":"https://ror.org/042aqky30","display_name":"Technische Universit\u00e4t Dresden","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]},"years":[1994,1993,1991]},{"institution":{"id":"https://openalex.org/I95023434","ror":"https://ror.org/04qzfn040","display_name":"University of KwaZulu-Natal","country_code":"ZA","type":"education","lineage":["https://openalex.org/I95023434"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2001,2000,1997]}],"last_known_institutions":[{"id":"https://openalex.org/I95023434","ror":"https://ror.org/04qzfn040","display_name":"University of KwaZulu-Natal","country_code":"ZA","type":"education","lineage":["https://openalex.org/I95023434"]}],"topics":[{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","count":303,"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/T10798","display_name":"Crystallography and molecular interactions","count":252,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical 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/T10939","display_name":"Crystal Structures and Properties","count":214,"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/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","count":106,"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/T11825","display_name":"Catalysis and Oxidation Reactions","count":79,"subfield":{"id":"https://openalex.org/subfields/1503","display_name":"Catalysis"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12136","display_name":"Vanadium and Halogenation Chemistry","value":0.0003662,"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/T11825","display_name":"Catalysis and Oxidation Reactions","value":0.0003559,"subfield":{"id":"https://openalex.org/subfields/1503","display_name":"Catalysis"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","value":0.0002345,"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/T11009","display_name":"Catalysis for Biomass Conversion","value":0.0002098,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10798","display_name":"Crystallography and molecular interactions","value":0.0001989,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"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":0.9874314069747925},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.9218517541885376},{"id":"115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","score":0.7677347660064697},{"id":"8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","score":0.7501927614212036},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.5603200793266296}],"counts_by_year":[{"year":1975,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2003,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":10,"oa_works_count":5,"cited_by_count":0},{"year":2005,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2006,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":15,"oa_works_count":7,"cited_by_count":0},{"year":2008,"works_count":15,"oa_works_count":12,"cited_by_count":0},{"year":2009,"works_count":13,"oa_works_count":8,"cited_by_count":0},{"year":2010,"works_count":7,"oa_works_count":4,"cited_by_count":0},{"year":2011,"works_count":33,"oa_works_count":27,"cited_by_count":0},{"year":2012,"works_count":29,"oa_works_count":18,"cited_by_count":73},{"year":2013,"works_count":20,"oa_works_count":13,"cited_by_count":61},{"year":2014,"works_count":43,"oa_works_count":26,"cited_by_count":119},{"year":2015,"works_count":38,"oa_works_count":18,"cited_by_count":87},{"year":2016,"works_count":56,"oa_works_count":34,"cited_by_count":163},{"year":2017,"works_count":39,"oa_works_count":29,"cited_by_count":226},{"year":2018,"works_count":37,"oa_works_count":17,"cited_by_count":319},{"year":2019,"works_count":29,"oa_works_count":19,"cited_by_count":329},{"year":2020,"works_count":27,"oa_works_count":20,"cited_by_count":362},{"year":2021,"works_count":24,"oa_works_count":17,"cited_by_count":347},{"year":2022,"works_count":21,"oa_works_count":18,"cited_by_count":394},{"year":2023,"works_count":7,"oa_works_count":5,"cited_by_count":306},{"year":2024,"works_count":13,"oa_works_count":12,"cited_by_count":362},{"year":2025,"works_count":9,"oa_works_count":9,"cited_by_count":329},{"year":2026,"works_count":10,"oa_works_count":10,"cited_by_count":244}],"display_name_alternatives":["Friedrich, H. B.","Friedrich, H.B.","Friedrich, Holger B.","H. B. Friedrich","H. FRIEDRICH","H. Friedrich","H.B. Friedrich","Holger B Friedrich","Holger B. Friedrich","Holger Friedrich"],"block_key":"h friedrich","works_api_url":"https://api.openalex.org/works?filter=author.id:A5023979760","updated_date":"2026-11-03T12:34:24","created_date":"2016-06-24T00:00:00"}
