{"doi":"10.1246/bcsj.54.1787","title":"Catalysis by Mixed Oxide Perovskites. II. The Hydrogenolysis of C3–C5 Hydrocarbons on LaCoO3","abstract":"<jats:title>Abstract</jats:title>\n               <jats:p>The catalytic hydrogenolysis of C3–C5 alkanes on LaCoO3 perovskite oxide was found to show a highly selective formation of methane in the temperature range of 350–620 K. The reaction order with respect to the hydrocarbon pressure was unity in every hydrogenolysis, whereas the hydrogen order increased from zero for propane to 1.0 for butane and isobutane and to 2.0 for pentane, isopentane, and neopentane. The activation energies of the reactions ranged from 120 for propane to 32 kJ mol−1 for butane. The reaction of propane or butane with D2 on LaCoO3 provided large fractions of methane [D3] and [D4], but a negligible amount of deuterium-exchanged alkanes. An equilibrium among the gaseous H2, HD, and D2 was reached. These hydrogenolyses are described by a mechanism involving the almost concurrent repture of all the carbon-carbon bonds in the alkanes by the attack of adsorbed hydrogen atoms, and were proposed to be catalyzed by a synergetic effect; the CO3+ ion is effective in breaking the C–C bond, whereas the La3+ and O2− ions serve to supply hydrogen atoms to the decomposed species. The reaction of propene or butenes with hydrogen produced the corresponding alkanes and methane. The kinetic analyses showed that the fractions of methane produced consecutively via the alkanes amounted to 16% for propene and to more than 93% for butenes. The observed pressure dependence and deuterium distributions in the alkene hydrogenation were interpreted in terms of the associative mechanism. The correlation between the structures of the reactant molecules and of the active sites present on LaCoO3 was briefly discussed.</jats:p>","journal":"Bulletin of the Chemical Society of Japan","year":1981,"id":20448,"datarank":2.8797518545479543,"base_score":3.2188758248682006,"endowment":3.2188758248682006,"self_citation_contribution":0.48283137373023016,"citation_network_contribution":2.396920480817724,"self_endowment_contribution":0.48283137373023016,"citer_contribution":2.396920480817724,"corpus_percentile":null,"corpus_rank":null,"citation_count":24,"citer_count":21,"citers_with_citation_signal":20,"citers_with_endowment":20,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":135105,"name":"Yasunobu Inoue","orcid":null,"position":1,"is_corresponding":false},{"id":135106,"name":"Iwao Yasumori","orcid":null,"position":2,"is_corresponding":false},{"id":135104,"name":"Kenji Ichimura","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":3.2188758248682006,"endowment":3.2188758248682006,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"24259432","pmcid":null,"openalex_id":"https://openalex.org/W1970761216","authors":[],"funders":[],"total_grants":0,"fwci":2.7212,"citation_percentile":0.87895143,"influential_citations":0,"citation_trend":[{"year":2016,"count":1},{"year":2019,"count":1},{"year":2024,"count":1}],"oa_status":"bronze","license":"https://academic.oup.com/pages/standard-publication-reuse-rights","oa_locations":[{"url":"http://www.journal.csj.jp/doi/pdf/10.1246/bcsj.54.1787","host_type":"journal"},{"url":"http://www.journal.csj.jp/doi/pdf/10.1246/bcsj.54.1787","host_type":"BRONZE"},{"url":"http://www.journal.csj.jp/doi/pdf/10.1246/bcsj.54.1787","host_type":"publisher"},{"url":"https://academic.oup.com/bcsj/article-pdf/54/6/1787/56099688/bcsj.54.1787.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1246/bcsj.54.1787","host_type":"journal"}],"fields_of_study":["Catalysis and Oxidation Reactions","Catalytic Processes in Materials Science","Catalysis and Hydrodesulfurization Studies","Chemistry","Materials Science"],"mesh_terms":[],"keywords":["Chemistry","Hydrogenolysis","Catalysis","Oxide","Organic chemistry","Inorganic chemistry"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Clean water and sanitation"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-04T13:48:01.025153Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}