Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Xie, Jiahan | - |
dc.contributor.author | Kammert, James D. | - |
dc.contributor.author | Kaylor, Nicholas | - |
dc.contributor.author | Zheng, Jonathan W. | - |
dc.contributor.author | Choi, Eunjin | - |
dc.contributor.author | Pham, Hien N. | - |
dc.contributor.author | Sang, Xiahan | - |
dc.contributor.author | Stavitski, Eli | - |
dc.contributor.author | Attenkofer, Klaus | - |
dc.contributor.author | Unocic, Raymond R. | - |
dc.contributor.author | Datye, Abhaya K. | - |
dc.contributor.author | Davis, Robert J. | - |
dc.date.accessioned | 2018-07-16T04:21:22Z | - |
dc.date.available | 2018-07-16T04:21:22Z | - |
dc.date.created | 2018-05-25 | - |
dc.date.issued | 2018-05 | - |
dc.identifier.issn | 2155-5435 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/8982 | - |
dc.description.abstract | Atomically dispersed Co(II) cations coordinated to nitrogen in a carbon matrix (Co-N-C) catalyze oxidative dehydrogenation of benzyl alcohol in water with a specific activity approaching that of supported Pt nanoparticles. Whereas Cu(II) cations in N-doped carbon also catalyze the reaction, they are about an order of magnitude less active compared with Co(II) cations. Results from X-ray absorption spectroscopy suggest that oxygen is also bound to N-coordinated Co(II) sites but that it can be partially removed by H2 treatments at 523-750 K. The N-coordinated Co(II) sites remained cationic in H2 up to 750 K, and these stable sites were demonstrated to be active for propane dehydrogenation. In situ characterization of Cu(II) in N-doped carbon revealed that reduction of the metal in H2 started at about 473 K, indicating a much lower thermal stability of Cu(II) in H2 relative to Co(II). The demonstrated high catalytic activity and thermal stability of Co-N-C in reducing environments suggests that this material may have broad utility in a variety of catalytic transformations. © 2018 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Atomically Dispersed Co and Cu on N-Doped Carbon for Reactions Involving C-H Activation | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acscatal.8b00141 | - |
dc.identifier.scopusid | 2-s2.0-85046621331 | - |
dc.identifier.bibliographicCitation | ACS Catalysis, v.8, no.5, pp.3875 - 3884 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | alcohol oxidation | - |
dc.subject.keywordAuthor | C-H activation | - |
dc.subject.keywordAuthor | coordination environment | - |
dc.subject.keywordAuthor | heterogeneous catalyst | - |
dc.subject.keywordAuthor | in situ XAS | - |
dc.subject.keywordAuthor | N-doped carbon | - |
dc.subject.keywordAuthor | nonprecious metal | - |
dc.subject.keywordAuthor | propane dehydrogenation | - |
dc.subject.keywordPlus | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | DENSITY-FUNCTIONAL-THEORY | - |
dc.subject.keywordPlus | IMPROVED HYDROTHERMAL STABILITY | - |
dc.subject.keywordPlus | SUPPORTED METAL-CATALYSTS | - |
dc.subject.keywordPlus | ACTIVE-SITES | - |
dc.subject.keywordPlus | SELECTIVE OXIDATION | - |
dc.subject.keywordPlus | PROPANE DEHYDROGENATION | - |
dc.subject.keywordPlus | ALCOHOL OXIDATION | - |
dc.subject.keywordPlus | AQUEOUS-PHASE | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.citation.endPage | 3884 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 3875 | - |
dc.citation.title | ACS Catalysis | - |
dc.citation.volume | 8 | - |
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