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DC Field | Value | Language |
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dc.citation.endPage | 12506 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 12487 | - |
dc.citation.title | ACS CATALYSIS | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Park, Jaeyong | - |
dc.contributor.author | Cahyadi, Handi Setiadi | - |
dc.contributor.author | Mushtaq, Umair | - |
dc.contributor.author | Verma, Deepak | - |
dc.contributor.author | Han, Daseul | - |
dc.contributor.author | Nam, Kyung-Wan | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kim, Jaehoon | - |
dc.date.accessioned | 2023-12-21T16:41:44Z | - |
dc.date.available | 2023-12-21T16:41:44Z | - |
dc.date.created | 2021-01-08 | - |
dc.date.issued | 2020-11 | - |
dc.description.abstract | The reductive catalytic fractionation (RCF) of lignocellulosic and herbaceous biomass over heterogeneous catalysts has been demonstrated to recover high-yield phenolic monomers and holocellulose-rich solids effectively, and these products could be further used to produce value-added chemicals and second-generation biofuel. Catalyst selection plays a critical role in the performance of the RCF process, and noble metal catalysts (e.g., Pt, Pd, and Ru) with a high loading of 5 wt % have been extensively used to obtain high-yield phenolic monomers and delignified holocellulose-rich solids. In this study, we demonstrated that the RCF of biomass over extremely low Pd loaded on N-doped carbon (CNx) support catalysts could produce phenolic monomers at approximately theoretical maximum yield and presented high holocellulose-rich solid recovery. When birch wood was converted over the catalyst with 0.25 wt % Pd loaded on CNx (Pd-0.25/CNx) at 250 degrees C and an initial H-2 pressure of 3.0 MPa for 3 h, a lignin-derived phenolic monomer carbon yield and highly delignified holocellulose recovery of 52.7 C % and 84.2 wt %, respectively, were achieved. The Pd-0.25/CNx catalyst contained both ultrasmall Pd nanoclusters and single Pd atoms, which were stabilized on the N-functionalized carbon support. The highly activated hydrogenolysis and double-bond saturation that occurred over the Pd-0.25/CNx catalyst dominantly produced 4-n-propyl guaiacol/syringol. In contrast, 4-n-propanol guaiacol/syringol with residual -OH groups was the major species obtained over the typical 5 wt % Pd/activated carbon catalyst. The plausible reaction pathways for the production of different types of phenolic monomers were discussed using density functional theory calculations. The excellent RCF performance of the Pd-0.25/CNx catalyst was demonstrated using other types of biomass, such as oak, pine, and miscanthus. The successful use of extremely low-Pd-loaded catalysts is advantageous for implementing economically viable RCF techniques. | - |
dc.identifier.bibliographicCitation | ACS CATALYSIS, v.10, no.21, pp.12487 - 12506 | - |
dc.identifier.doi | 10.1021/acscatal.0c03393 | - |
dc.identifier.issn | 2155-5435 | - |
dc.identifier.scopusid | 2-s2.0-85097911601 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/49496 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acscatal.0c03393 | - |
dc.identifier.wosid | 000589939900014 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Highly Efficient Reductive Catalytic Fractionation of Lignocellulosic Biomass over Extremely Low-Loaded Pd Catalysts | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | extremely low metal loading | - |
dc.subject.keywordAuthor | lignocellulosic biomass | - |
dc.subject.keywordAuthor | fractionation | - |
dc.subject.keywordAuthor | catalysts | - |
dc.subject.keywordAuthor | lignin-derived monomers | - |
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