The role of MgO in the performance of Pd/SiO2/cordierite monolith catalyst for the hydrogenation of 2-ethyl-anthraquinone
文献类型：期刊论文
| 作者 | Li, Xiaotong1,2,3; Su, Hongjiu2,3; Ren, Gaoyuan2,3; Wang, Shudong2,3 |
| 刊名 | APPLIED CATALYSIS A-GENERAL
 |
| 出版日期 | 2016-05-05 |
| 卷号 | 517页码:168-175 |
| 关键词 | Monolith Pd Dispersion Anthraquinone Hydrogenation Mgo Alkalinity |
| ISSN号 | 0926-860X |
| DOI | 10.1016/j.apcata.2016.01.011 |
| 文献子类 | Article |
| 英文摘要 | Highly dispersed Pd/SiO2/cordierite monolith catalysts (PSC) were prepared to investigate the influence of support alkalinity on 2-ethyl-anthraquinone (eAQ) hydrogenation. The support alkalinity was adjusted by the MgO content in SiO2 washcoat. The behavior of the PSC catalysts was tested by liquid phase hydrogenation of eAQ in a continuous trickle bed reactor. PSC catalyst with 2 wt.% MgO (Mg-2 sample) exhibited excellent for hydrogenation of eAQ The support alkalinity directly influenced the electronic properties of the Pd nanoparticles as proved by Fourier transformed infrared spectroscopy with CO probe molecule and X-ray photoelectron spectroscopy. The electron density at lower binding energy of the supported Pd particles increased with the increasing alkalinity. PSC catalysts with alkali modifiers exhibited higher hydrogenation efficiency for benefiting the activation of C=O group in eAQ and the adsorption of eAQ via the enhanced interaction of lone pair of C=O electrons. However, increased support alkalinity contributed to higher Pd loss due to the weak coating strength. Besides, the active quinone selectivity decreased with the progressive MgO addition due to the tautomerization of 2-ethylanthrahydroquinone to 2-ethyloxoanthrone, which is the precursor of other degradations. Consequently, a volcano shape curve between hydrogenation efficiency (H2O2 yield) and MgO content was obtained. (C) 2016 Published by Elsevier B.V. |
| WOS关键词 | PEROXIDE SYNTHESIS ; PARTICLE-SIZE ; CHEMOSELECTIVE HYDROGENATION ; ANTHRAQUINONE PROCESS ; PALLADIUM CATALYST ; SUPPORT ; 2-ETHYLANTHRAQUINONE ; NANOPARTICLES ; ADSORPTION ; ALUMINA |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000375162100019 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170796]  |
| 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 |
| 通讯作者 | Su, Hongjiu; Wang, Shudong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China 3.Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaotong,Su, Hongjiu,Ren, Gaoyuan,et al. The role of MgO in the performance of Pd/SiO2/cordierite monolith catalyst for the hydrogenation of 2-ethyl-anthraquinone[J]. APPLIED CATALYSIS A-GENERAL,2016,517:168-175. |
| APA | Li, Xiaotong,Su, Hongjiu,Ren, Gaoyuan,&Wang, Shudong.(2016).The role of MgO in the performance of Pd/SiO2/cordierite monolith catalyst for the hydrogenation of 2-ethyl-anthraquinone.APPLIED CATALYSIS A-GENERAL,517,168-175. |
| MLA | Li, Xiaotong,et al."The role of MgO in the performance of Pd/SiO2/cordierite monolith catalyst for the hydrogenation of 2-ethyl-anthraquinone".APPLIED CATALYSIS A-GENERAL 517(2016):168-175. |
入库方式： OAI收割
来源：大连化学物理研究所
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