{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T16:01:16Z","timestamp":1791302476487,"version":"4.1.0"},"reference-count":38,"publisher":"American Chemical Society (ACS)","issue":"39","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico","doi-asserted-by":"publisher","award":["408008\/2022-9"],"award-info":[{"award-number":["408008\/2022-9"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004809","name":"Financiadora de Estudos e Projetos","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Despite being widely recognized within the scientific community, the synthesis of biodiesel from acidic feedstocks remains challenging. In this work, a heterogeneous catalyst comprising molybdenum trioxide and zinc molybdate (MoO3\/ZnMoO4) was synthesized via the modified Pechini method and characterized to assess its structural, morphological, and chemical properties. The catalytic performance of MoO3\/ZnMoO4 in esterification, transesterification, and simultaneous esterification-transesterification reactions (SET) at different temperatures and times of reaction was evaluated. \u03b1-MoO3 and ZnMoO4, with high crystallinity, were obtained, exhibiting Lewis acid sites and a negatively charged surface across all pH values. Heterogeneous morphology identified by SEM\/EDS, including ribbon-like and prismatic particles characteristic of \u03b1-MoO3, alongside irregular micrometric particles attributed to the ZnMoO4 phase. The composite exhibited strong catalytic activity in transesterification, achieving conversion of 76.61% at 160 \u00b0C\/120 min and 82.84% at 200 \u00b0C\/120 min\u2500both exceeding values reported for pristine ZnMoO4. In esterification, conversions ranged around 96% and 97%, with limited dependence on temperature and reaction time, suggesting that milder conditions are sufficient for high efficiency. In the SET reaction, conversions of about 90% were obtained using oil acidified with 10% or 20% oleic acid, and 96.22% conversion was achieved with crude palm oil, demonstrating strong tolerance toward acidic feedstocks. Moreover, the material kept its catalytic activity after 4 reuse tests. The superior performance of the composite is primarily attributed to the synergistic interaction between ZnMoO4 and MoO3.<\/jats:p>","DOI":"10.1021\/acsomega.6c05074","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T12:01:33Z","timestamp":1790078493000},"page":"59251-59261","source":"Crossref","is-referenced-by-count":0,"title":["MoO3\/ZnMoO4 Composite Obtained\nin a One-Pot Reaction and Applied in the Production of Biodiesel from\nAcid Feedstocks"],"prefix":"10.1021","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-6378-1738","authenticated-orcid":true,"given":"Heritier","family":"Kabamba Subissay","sequence":"first","affiliation":[{"name":"Universidade Federal da Parai\u0301ba , , , ,","place":["Joao Pessoa, Parai\u0301ba, Brazil, CEP 58051-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda Soares de","family":"Sousa","sequence":"additional","affiliation":[{"name":"Universidade Federal da Parai\u0301ba , , , ,","place":["Joao Pessoa, Parai\u0301ba, Brazil, CEP 58051-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana Cristina F. M.","family":"Costa","sequence":"additional","affiliation":[{"name":"Universidade Federal de Campina Grande , , , ,","place":["Campina Grande, Parai\u0301ba, Brazil, 58429-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3349-3994","authenticated-orcid":true,"given":"Ieda Maria Garcia dos","family":"Santos","sequence":"additional","affiliation":[{"name":"Universidade Federal da Parai\u0301ba , , , ,","place":["Joao Pessoa, Parai\u0301ba, Brazil, CEP 58051-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,22]]},"reference":[{"key":"2026100610484070900_cit1","doi-asserted-by":"publisher","first-page":"907","DOI":"10.1016\/j.renene.2022.01.122","article-title":"Molybdenum and Zirconium Oxides Supported on KIT-6\nSilica: A Recyclable Composite Catalyst for One e Pot Biodiesel Production\nfrom Simulated Low-Quality Oils","volume":"187","author":"Wang","year":"2022","journal-title":"Renewable Energy"},{"issue":"3","key":"2026100610484070900_cit2","doi-asserted-by":"publisher","first-page":"477","DOI":"10.1590\/S0100-40422011000300021","article-title":"Catalisadores Heteroge\u0302neos\nPara a Produc\u0327a\u0303o de Monoe\u0301steres Graxos (Biodiesel)","volume":"34","author":"Cordeiro","year":"2011","journal-title":"Quim. 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Nano Mater."},{"issue":"6","key":"2026100610484070900_cit8","doi-asserted-by":"publisher","first-page":"7775","DOI":"10.1002\/ER.7679","article-title":"Synthesis\nof MoO3 by Pilot-Scale Combustion Reaction and Evaluation\nin Biodiesel Production from Residual Oil","volume":"46","author":"da Silva","year":"2022","journal-title":"Int.\nJ. 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