| Reox/ac-catalyzed cleavage of c-o bonds in lignin model compounds and alkaline lignins | |
| Zhang, Bo1; Qi, Zaojuan1; Li, Xinxin1; Ji, Jianwei1,2; Luo, Wenhao1; Li, Changzhi1,3; Wang, Aiqin1,3; Zhang, Tao1 | |
| 刊名 | Acs sustainable chemistry & engineering
 |
| 2019-01-07 | |
| 卷号 | 7期号:1页码:208-215 |
| 关键词 | Alkaline lignin Depolymerization Hydrogenolysis Reox/ac Aromatics |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.8b02929 |
| 通讯作者 | Li, changzhi(licz@dicp.ac.cn) ; Zhang, tao(taozhang@dicp.ac.cn) |
| 英文摘要 | An effective method for the cleavage of the c-o bonds in lignin alpha-o-4 dimers and various alkaline lignins including the lignin from pulp industry was developed over a heterogeneous reox/ac catalyst. high yield of aromatic monomers (up to 98.0%) from alpha-o-4 model compounds and up to 80.1% lignin oil with 24.5% yield of monomers from realistic lignin were obtained under optimized conditions. alkaline poplar lignin provided syringylpropane and 4-propenylsyringol with the highest yield of 6.6% and 7.4%, respectively. the active sites of reox/ac could be assigned to reiv-vi according to xps and exafs characterization. the lignin structures of different botanical species (hardwood, softwood and herbaceous crop) were compared and the activity of reox/ac on these lignins was investigated in detail. gpc and 2d hsqc nmr analysis of isolated lignin and lignin oil showed that hardwood lignin was more liable to be deconstructed than softwood and grass lignins due to the less amounts of beta-5 linkages, lower molecular weight and richer syringyl (s) units in hardwood lignin. |
| WOS关键词 | SUPPORTED RHENIUM CATALYST ; LIGNOCELLULOSE FRACTIONATION ; SELECTIVE CLEAVAGE ; PHENOLIC MONOMERS ; DEPOLYMERIZATION ; OXIDATION ; CHEMICALS ; METAL ; HYDROGENOLYSIS ; VALORIZATION |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| WOS类目 | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000455288800023 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2372853 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Li, Changzhi; Zhang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China 2.Shaanxi Univ Technol, Sch Chem & Environm Sci, Shaanxi Key Lab Catalysis, 1 Dongyihuan Rd, Hanzhong 723001, Peoples R China 3.Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Bo,Qi, Zaojuan,Li, Xinxin,et al. Reox/ac-catalyzed cleavage of c-o bonds in lignin model compounds and alkaline lignins[J]. Acs sustainable chemistry & engineering,2019,7(1):208-215. |
| APA | Zhang, Bo.,Qi, Zaojuan.,Li, Xinxin.,Ji, Jianwei.,Luo, Wenhao.,...&Zhang, Tao.(2019).Reox/ac-catalyzed cleavage of c-o bonds in lignin model compounds and alkaline lignins.Acs sustainable chemistry & engineering,7(1),208-215. |
| MLA | Zhang, Bo,et al."Reox/ac-catalyzed cleavage of c-o bonds in lignin model compounds and alkaline lignins".Acs sustainable chemistry & engineering 7.1(2019):208-215. |
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