Promoting Lignin Depolymerization and Restraining the Condensation via an Oxidation-Hydrogenation Strategy
文献类型：期刊论文
| 作者 | Zhang, Chaofeng2; Li, Hongji2,3; Lu, Jianmin2; Zhang, Xiaochen2; MacArthur, Katherine E.1,4; Heggen, Marc1,4; Wang, Feng2 |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 7页码:3419-3429 |
| 关键词 | Lignin Oxidation-hydrogenation Phenolic Monomer Nano2/ddq/nhpi Nimo Sulfide Lignin Fragments' Condensation |
| DOI | 10.1021/acscatal.7b00148 |
| 英文摘要 | For lignin valorization, simultaneously achieving the efficient cleavage of ether bonds and restraining the condensation of the formed fragments represents a challenge thus far. Herein, we report a two-step oxidation-hydrogenation strategy to achieve this goal. In the oxidation step, the O-2/NaNO2/DDQ/NHPI system selectively oxidizes C alpha H-OH to C-alpha=O within the beta-O-4 structure. In the subsequent hydrogenation step, the alpha-O-4 and the preoxidized beta-O-4 structures are further hydrogenated over a NiMo sulfide catalyst, leading to the cleavage of C-beta-OPh and C-alpha-OPh bonds. Besides the transformation of lignin model compounds, the yield of phenolic monomers from birch wood is up to 32% by using this two-step strategy. The preoxidation of C-alpha-OH to C-alpha=O not only weakens the C-beta-OPh ether bond but also avoids the condensation reactions caused by the presence of C-alpha(+) from dehydroxylation of C alpha H-OH. Furthermore, the NiMo sulfide prefers to catalyze the hydrogenative cleavage of the C-beta-OPh bond connecting with a C-alpha=O rather than catalyze the hydrogenation of C-alpha=O back to the original C alpha H-OH, which further ensures and utilizes the advantages of preoxidation. |
| 语种 | 英语 |
| WOS记录号 | WOS:000401054300041 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/152307]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany |
| 推荐引用方式 GB/T 7714 | Zhang, Chaofeng,Li, Hongji,Lu, Jianmin,et al. Promoting Lignin Depolymerization and Restraining the Condensation via an Oxidation-Hydrogenation Strategy[J]. ACS CATALYSIS,2017,7:3419-3429. |
| APA | Zhang, Chaofeng.,Li, Hongji.,Lu, Jianmin.,Zhang, Xiaochen.,MacArthur, Katherine E..,...&Wang, Feng.(2017).Promoting Lignin Depolymerization and Restraining the Condensation via an Oxidation-Hydrogenation Strategy.ACS CATALYSIS,7,3419-3429. |
| MLA | Zhang, Chaofeng,et al."Promoting Lignin Depolymerization and Restraining the Condensation via an Oxidation-Hydrogenation Strategy".ACS CATALYSIS 7(2017):3419-3429. |
入库方式： OAI收割
来源：大连化学物理研究所
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