A highly porous carbon support rich in graphitic-n stabilizes copper nanocatalysts for efficient ethanol dehydrogenation
文献类型：期刊论文
| 作者 | Zhang, Peng1; Wang, Qing-Nan1; Yang, Xia2; Wang, Dongqi2; Li, Wen-Cui1; Zheng, Yanping3; Chen, Mingshu3; Lu, An-Hui1 |
| 刊名 | Chemcatchem
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 9期号:3页码:505-510 |
| 关键词 | Acetaldehyde Copper Dehydrogenation Graphitic-n Porous carbon |
| ISSN号 | 1867-3880 |
| DOI | 10.1002/cctc.201601373 |
| 通讯作者 | Lu, an-hui(anhuilu@dlut.edu.cn) |
| 英文摘要 | The dehydrogenation of bioethanol to acetaldehyde and hydrogen is a sustainable process, owing to the atom-economical transformation and easy separation of the products. however, oxide-supported cu catalysts show a low selectivity to acetaldehyde because of considerable side reactions caused by their oxygen-rich surfaces. a conventional carbon-supported cu catalyst shows high selectivity, but is quickly deactivated owing to the migration and agglomeration of copper particles. here, we have produced a highly porous nitrogen-rich carbon support that contains 6.2wt% n and can nicely disperse and stabilize cu nanoparticles (similar to 6.3nm). if used for ethanol dehydrogenation, approximately 98% selectivity to acetaldehyde has been achieved, with excellent anti-agglomeration ability for as long as 500min. x-ray photoelectron spectroscopy (xps) data prove that electrons transfer to the cu particles from the n sites. theoretical calculations further show that nitrogen sites enhance the adsorption of cu-20 clusters and can stabilize them against coalescence and that graphitic-n sites (approximately 40% of total n content) are the most significant. |
| WOS关键词 | ISOPROPANOL DEHYDROGENATION ; DOPED CARBON ; CATALYSTS ; CONVERSION ; BIOETHANOL ; OXIDATION ; NANOPARTICLES ; PERFORMANCE ; MOLECULES ; BIOMASS |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000395587400020 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176690 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Lu, An-Hui |
| 作者单位 | 1.Dalian Univ Technol, State Key Lab Fine Chem, Sch Chem Engn, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Multidisciplinary Initiat Ctr, Beijing 100049, Peoples R China 3.Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Natl Engn Lab Green Chem Prod Alcohols Ethers & E, Dept Chem,Coll Chem & Chem Engn, Xiamen 361005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng,Wang, Qing-Nan,Yang, Xia,et al. A highly porous carbon support rich in graphitic-n stabilizes copper nanocatalysts for efficient ethanol dehydrogenation[J]. Chemcatchem,2017,9(3):505-510. |
| APA | Zhang, Peng.,Wang, Qing-Nan.,Yang, Xia.,Wang, Dongqi.,Li, Wen-Cui.,...&Lu, An-Hui.(2017).A highly porous carbon support rich in graphitic-n stabilizes copper nanocatalysts for efficient ethanol dehydrogenation.Chemcatchem,9(3),505-510. |
| MLA | Zhang, Peng,et al."A highly porous carbon support rich in graphitic-n stabilizes copper nanocatalysts for efficient ethanol dehydrogenation".Chemcatchem 9.3(2017):505-510. |
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来源：高能物理研究所
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