{"id":"https://openalex.org/A5111804290","orcid":null,"observed_orcids":[],"display_name":"Leroy Ellis","raw_author_names":["Ellis, Leroy1, Albert G. Holba2, Ro","Ellis, Leroy1, Haposan Napitupulu2,","L Ellis","L. E. Ellis","L. ELLIS","Leroy Ellis"],"full_name":"Ellis, Leroy1, Haposan Napitupulu2,","works_count":23,"cited_by_count":1007,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":16,"i10_index":17},"ids":{"openalex":"https://openalex.org/A5111804290","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1282105669","ror":"https://ror.org/05gvnxz63","display_name":"Argonne National Laboratory","country_code":"US","type":"facility","lineage":["https://openalex.org/I1282105669","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I40347166"]},"years":[1998,1997,1996,1995]},{"institution":{"id":"https://openalex.org/I1330989302","ror":"https://ror.org/01bj3aw27","display_name":"United States Department of Energy","country_code":"US","type":"government","lineage":["https://openalex.org/I1330989302"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I20303223","ror":"https://ror.org/01zctcs90","display_name":"BP (United Kingdom)","country_code":"GB","type":"company","lineage":["https://openalex.org/I20303223"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I205640436","ror":"https://ror.org/02n415q13","display_name":"Curtin University","country_code":"AU","type":"education","lineage":["https://openalex.org/I205640436"]},"years":[1999,1996,1995,1994,1992]},{"institution":{"id":"https://openalex.org/I4210136879","ror":"https://ror.org/04m2vv179","display_name":"Arcos (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I4210136879"]},"years":[2001]},{"institution":{"id":"https://openalex.org/I4210143841","ror":"https://ror.org/03ypap427","display_name":"Saudi Aramco (Saudi Arabia)","country_code":"SA","type":"company","lineage":["https://openalex.org/I4210143841"]},"years":[2016]},{"institution":{"id":"https://openalex.org/I87216513","ror":"https://ror.org/05hs6h993","display_name":"Michigan State University","country_code":"US","type":"education","lineage":["https://openalex.org/I87216513"]},"years":[1998]}],"last_known_institutions":[{"id":"https://openalex.org/I4210143841","ror":"https://ror.org/03ypap427","display_name":"Saudi Aramco (Saudi Arabia)","country_code":"SA","type":"company","lineage":["https://openalex.org/I4210143841"]}],"topics":[{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","count":15,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11630","display_name":"Petroleum Processing and Analysis","count":15,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical 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/T10109","display_name":"Paleontology and Stratigraphy of Fossils","count":6,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13193","display_name":"Geological Studies and Exploration","count":5,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10353","display_name":"Zeolite Catalysis and Synthesis","count":4,"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"}}],"topic_share":[{"id":"https://openalex.org/T11630","display_name":"Petroleum Processing and Analysis","value":8.99e-05,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical 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/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","value":3.59e-05,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10995","display_name":"Methane Hydrates and Related Phenomena","value":2.63e-05,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11351","display_name":"Catalysis and Hydrodesulfurization Studies","value":2.44e-05,"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/T10353","display_name":"Zeolite Catalysis and Synthesis","value":1.64e-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"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9222573041915894},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.8985282182693481},{"id":"161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","score":0.8799357414245605},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.45828431844711304},{"id":"151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","score":0.37239646911621094}],"counts_by_year":[{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":2,"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":28},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":55},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":46},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":58},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":52},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":56},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":44}],"display_name_alternatives":["Ellis, Leroy1, Albert G. Holba2, Ro","Ellis, Leroy1, Haposan Napitupulu2,","L Ellis","L. E. Ellis","L. ELLIS","Leroy Ellis"],"block_key":"l ellis","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111804290","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}