One‐Pot Conversion of Lignin into Naphthenes Catalyzed by a Heterogeneous Rhenium Oxide‐Modified Iridium Compound
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- Xinxin Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
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- Bo Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
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- Xiaoli Pan
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
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- Jianwei Ji
- Shaanxi Key Laboratory of Catalysis School of Chemistry and Environment Science Shaanxi Sci-tech University 1 Dongyihuan Road Hanzhong 723001 P.R. China
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- Yujing Ren
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
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- Hua Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
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- Na Ji
- School of Environmental Science and Engineering Key Laboratory of Biomass-Derived Gas and Oil for Chinese Petrochemical Industry Tianjin University Tianjin 300350 P.R. China
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- Qiying Liu
- Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510640 P.R. China
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- Changzhi Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
書誌事項
- 公開日
- 2020-02-25
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/cssc.201903286
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>The direct transformation of lignin into fuels and chemicals remains a huge challenge because of the recalcitrant and complicated structure of lignin. In this study, rhenium oxide‐modified iridium supported on SiO<jats:sub>2</jats:sub> (Ir‐ReO<jats:sub><jats:italic>x</jats:italic></jats:sub>/SiO<jats:sub>2</jats:sub>) is employed for the one‐pot conversion of various lignin model compounds and lignin feedstocks into naphthenes. Up to 100 % yield of cyclohexane from model compounds and 44.3 % yield of naphthenes from lignin feedstocks are achieved. 2 D HSQC NMR spectroscopy before and after the reaction confirms the activity of Ir‐ReO<jats:sub><jats:italic>x</jats:italic></jats:sub>/SiO<jats:sub>2</jats:sub> in the cleavage of the C−O bonds and hydrodeoxygenation of the depolymerized products. H<jats:sub>2</jats:sub> temperature‐programmed reduction, temperature‐programmed desorption of NH<jats:sub>3</jats:sub>, IR spectroscopy of pyridine adsorption, X‐ray photoelectron spectroscopy, X‐ray absorption fine structure analysis, and control experiments reveal that a synergistic effect between Ir and ReO<jats:sub><jats:italic>x</jats:italic></jats:sub> in Ir‐ReO<jats:sub><jats:italic>x</jats:italic></jats:sub>/SiO<jats:sub>2</jats:sub> plays a crucial role in the high performance; ReO<jats:sub><jats:italic>x</jats:italic></jats:sub> is mainly responsible for the cleavage of C−O bonds, whereas Ir is responsible for hydrodeoxygenation and saturation of the benzene rings. This methodology opens up an energy‐efficient route for the direct conversion of lignin into valuable naphthenes.</jats:p>
収録刊行物
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- ChemSusChem
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ChemSusChem 13 (17), 4409-4419, 2020-02-25
Wiley