DC Field | Value | Language |
---|---|---|
dc.contributor.author | Baik, Yaejun | ko |
dc.contributor.author | Kwen, Minjae | ko |
dc.contributor.author | Lee, Kyungho | ko |
dc.contributor.author | Chi, Seunghyuck | ko |
dc.contributor.author | Lee, Susung | ko |
dc.contributor.author | Cho, Kanghee | ko |
dc.contributor.author | Kim, Hyungjun | ko |
dc.contributor.author | Choi, Minkee | ko |
dc.date.accessioned | 2023-07-13T03:00:12Z | - |
dc.date.available | 2023-07-13T03:00:12Z | - |
dc.date.created | 2023-07-13 | - |
dc.date.created | 2023-07-13 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.citation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.145, no.20, pp.11364 - 11374 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | http://hdl.handle.net/10203/310484 | - |
dc.description.abstract | Ru catalysts promoted with alkali and alkaline earthhave shownsuperior ammonia (NH3) synthesis activities under mildconditions. Although these promoters play a vital role in enhancingcatalytic activity, their function has not been clearly understood.Here, we synthesize a series of Ba-Ru/MgO catalysts with an optimalRu particle size (similar to 2.3 nm) and tailored BaO-Ru interfacialstructures. We discover that the promoting effect is created throughthe separate storage of H+/e(-) pairs atthe BaO-Ru interface. Chemisorbed H atoms on Ru dissociateinto H+/e(-) pairs at the BaO-Ruinterface, where strongly basic, nonreducible BaO selectively capturesH(+) while leaving e(-) on Ru. The resultingelectron accumulation in Ru facilitates N-2 activation viaenhanced pi-backdonation and inhibits hydrogen poisoning duringNH(3) synthesis. Consequently, the formation of intimateBaO-Ru interface without an excessive loss of accessible Rusites enables the synthesis of highly active catalysts for NH3 synthesis. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Splitting of Hydrogen Atoms into Proton-Electron Pairs at BaO-Ru Interfaces for Promoting Ammonia Synthesis under Mild Conditions | - |
dc.type | Article | - |
dc.identifier.wosid | 001009355900001 | - |
dc.identifier.scopusid | 2-s2.0-85160003555 | - |
dc.type.rims | ART | - |
dc.citation.volume | 145 | - |
dc.citation.issue | 20 | - |
dc.citation.beginningpage | 11364 | - |
dc.citation.endingpage | 11374 | - |
dc.citation.publicationname | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.identifier.doi | 10.1021/jacs.3c02529 | - |
dc.contributor.localauthor | Kim, Hyungjun | - |
dc.contributor.localauthor | Choi, Minkee | - |
dc.contributor.nonIdAuthor | Kwen, Minjae | - |
dc.contributor.nonIdAuthor | Lee, Kyungho | - |
dc.contributor.nonIdAuthor | Chi, Seunghyuck | - |
dc.contributor.nonIdAuthor | Lee, Susung | - |
dc.contributor.nonIdAuthor | Cho, Kanghee | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TOTAL-ENERGY CALCULATIONS | - |
dc.subject.keywordPlus | RUTHENIUM CATALYSTS | - |
dc.subject.keywordPlus | LOW-CRYSTALLINE | - |
dc.subject.keywordPlus | BARIUM | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | SUPPORT | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | EFFICIENCY | - |
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