{"title":"探索la基高熵钙钛矿用于甲烷重整合成气的研究","authors":"Aathira Bhaskaran, Satyapaul A. Singh, Sounak Roy","doi":"10.1007/s10562-025-05189-0","DOIUrl":null,"url":null,"abstract":"<div><p>Perovskite-type oxides (ABO<sub>3</sub>), featuring lanthanum at the A-site and transition metals at the B-site, have attracted considerable attention due to their structural flexibility and redox-active <i>d</i>-orbitals. Recently, High Entropy Perovskite Oxide catalysts have emerged as promising materials, owing to several key attributes: phase stabilization driven by high configurational entropy, enhanced resistance to sintering due to sluggish diffusion, lattice distortion that promotes reactivity, and the “cocktail effect,” which enables synergistic electronic and structural tuning. The selection of transition metals at the B-site plays a critical role in determining catalytic performance. In this study, we investigated two high entropy compositions—LaMg<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>3</sub> and LaMg<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>O<sub>3</sub>—by comparing their catalytic activity, stability, and syngas selectivity, with particular emphasis on the role of exsolved nanoparticles in enhancing methane reforming performance.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic illustration of dry reforming of methane over high entropy perovskite oxide catalysts.</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 10","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring La-Based High Entropy Perovskites for Syngas Production Via Methane Reforming\",\"authors\":\"Aathira Bhaskaran, Satyapaul A. Singh, Sounak Roy\",\"doi\":\"10.1007/s10562-025-05189-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Perovskite-type oxides (ABO<sub>3</sub>), featuring lanthanum at the A-site and transition metals at the B-site, have attracted considerable attention due to their structural flexibility and redox-active <i>d</i>-orbitals. Recently, High Entropy Perovskite Oxide catalysts have emerged as promising materials, owing to several key attributes: phase stabilization driven by high configurational entropy, enhanced resistance to sintering due to sluggish diffusion, lattice distortion that promotes reactivity, and the “cocktail effect,” which enables synergistic electronic and structural tuning. The selection of transition metals at the B-site plays a critical role in determining catalytic performance. In this study, we investigated two high entropy compositions—LaMg<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>3</sub> and LaMg<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>O<sub>3</sub>—by comparing their catalytic activity, stability, and syngas selectivity, with particular emphasis on the role of exsolved nanoparticles in enhancing methane reforming performance.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic illustration of dry reforming of methane over high entropy perovskite oxide catalysts.</p></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":\"155 10\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-025-05189-0\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-025-05189-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Exploring La-Based High Entropy Perovskites for Syngas Production Via Methane Reforming
Perovskite-type oxides (ABO3), featuring lanthanum at the A-site and transition metals at the B-site, have attracted considerable attention due to their structural flexibility and redox-active d-orbitals. Recently, High Entropy Perovskite Oxide catalysts have emerged as promising materials, owing to several key attributes: phase stabilization driven by high configurational entropy, enhanced resistance to sintering due to sluggish diffusion, lattice distortion that promotes reactivity, and the “cocktail effect,” which enables synergistic electronic and structural tuning. The selection of transition metals at the B-site plays a critical role in determining catalytic performance. In this study, we investigated two high entropy compositions—LaMg0.2Fe0.2Co0.2Ni0.2Mn0.2O3 and LaMg0.2Fe0.2Co0.2Ni0.2Cu0.2O3—by comparing their catalytic activity, stability, and syngas selectivity, with particular emphasis on the role of exsolved nanoparticles in enhancing methane reforming performance.
Graphical abstract
Schematic illustration of dry reforming of methane over high entropy perovskite oxide catalysts.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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