Nitrogen-doped carbon-modified cobalt-nanoparticle-catalyzed oxidative cleavage of lignin beta-o-4 model compounds under mild conditions
文献类型：期刊论文
| 作者 | Luo, Huihui1,2; Wang, Lianyue2; Li, Guosong2; Shang, Sensen2; Lv, Ying2; Niu, Jingyang1; Gao, Shuang2 |
| 刊名 | Acs sustainable chemistry & engineering
 |
| 出版日期 | 2018-11-05 |
| 卷号 | 6期号:11页码:14188-14196 |
| 关键词 | Lignin Oxidative cleavage Heterogeneous catalyst Model compounds Cobalt oxides |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.8b02802 |
| 通讯作者 | Wang, lianyue(lianyuewang@dicp.ac.cn) ; Niu, jingyang(jyniu@henu.edu.cn) ; Gao, shuang(sgao@dicp.ac.cn) |
| 英文摘要 | A noble-metal-free co-based catalyst, derived from pyrolysis of natural vitamin b-12 on activated carbon, is developed for the first time for one-pot oxidative cleavage of lignin linkages to phenols and aromatic esters with molecular oxygen as the oxidant under mild reaction conditions. high yields of phenol were obtained, and no oxidative coupling of phenol was produced based on the present cobalt catalyst. compared to the previous report, the present catalyst can achieve the oxidative cleavage of beta-o-4 ketones even at room temperature using a dioxygen balloon. the heterogeneous catalyst shows robust recyclability and can be conveniently recovered and reused up to eight times without an appreciable loss of catalytic activity. moreover, this catalyst system can realize the bond cleavage of organosolv lignin. the evidence of depolymerization was given by two-dimensional heteronuclear single quantum coherence nmr and gel permeation chromatography. characterization of the catalyst by inductively coupled plasma, n-2 adsorption-desorption, raman spectroscopy, scanning electron microscopy, transmission electron microscopy (tem), high-resolution tem, high-angle angular dark-field scanning tem, energy-dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, and control experiments provide a fundamental understanding of the catalytic materials and the reaction pathway. co3o4 in situ supported on a n-doped carbon matrix by the way of high-temperature pyrolysis might be a catalytically active species. two reaction intermediates are detected and confirmed by gas chromatograph-mass spectrometry. |
| WOS关键词 | C BOND-CLEAVAGE ; SELECTIVE OXIDATION ; AEROBIC OXIDATION ; METAL-FREE ; VALUABLE CHEMICALS ; VANADIUM CATALYST ; MESOPOROUS CARBON ; OXYGEN REDUCTION ; CO3O4 CATALYST ; DEPOLYMERIZATION |
| 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 |
| WOS记录号 | WOS:000449577200064 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373111 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Wang, Lianyue; Niu, Jingyang; Gao, Shuang |
| 作者单位 | 1.Henan Univ, Henan Key Lab Polyoxometalate Chem, Inst Mol & Crystal Engn, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Huihui,Wang, Lianyue,Li, Guosong,et al. Nitrogen-doped carbon-modified cobalt-nanoparticle-catalyzed oxidative cleavage of lignin beta-o-4 model compounds under mild conditions[J]. Acs sustainable chemistry & engineering,2018,6(11):14188-14196. |
| APA | Luo, Huihui.,Wang, Lianyue.,Li, Guosong.,Shang, Sensen.,Lv, Ying.,...&Gao, Shuang.(2018).Nitrogen-doped carbon-modified cobalt-nanoparticle-catalyzed oxidative cleavage of lignin beta-o-4 model compounds under mild conditions.Acs sustainable chemistry & engineering,6(11),14188-14196. |
| MLA | Luo, Huihui,et al."Nitrogen-doped carbon-modified cobalt-nanoparticle-catalyzed oxidative cleavage of lignin beta-o-4 model compounds under mild conditions".Acs sustainable chemistry & engineering 6.11(2018):14188-14196. |
入库方式： iSwitch采集
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。