Transition metal-doped heteropoly catalysts for the selective oxidation of methacrolein to methacrylic acid
文献类型：期刊论文
| 作者 | Zheng, Yanxia1,2; Zhang, Heng2,3; Wang, Lei2; Zhang, Suojiang2; Wang, Shaojun1 |
| 刊名 | FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 10期号:1页码:139-146 |
| 关键词 | heteropoly compounds transition metals selective oxidation methacrolein |
| ISSN号 | 2095-0179 |
| 通讯作者 | Wang, SJ (reprint author), Dalian Polytech Univ, Sch Light Ind & Chem Engn, Dalian 116034, Peoples R China. |
| 英文摘要 | Heteropoly compounds with the general formula Cs1M0.5x+H3-0.5xP1.2Mo11VO40 (M = Fe, Co, Ni, Cu or Zn) and Cs1CuyH3-'2yP1.2Mo11VO40 (y = 0.1, 0.3 or 0.7) were synthesized and then used as catalysts for the selective oxidation of methacrolein to methacrylic acid. The effects of the transition metals on the structure and activity of the catalysts were investigated. FTIR spectra showed that the transition metal-doped catalysts maintained the Keggin structure of the undoped catalysts. X-ray diffraction results indicated that before calcination, the catalysts doped with Fe and Cu had cubic secondary structures, while the catalysts doped with Co, Ni or Zn had both triclinic and cubic phases and the Co-doped catalyst had the highest content of the triclinic form. Thermal treatment can decrease the content of the triclinic phase. NH3 temperature-programmed desorption and H-2 temperature-programmed reduction results showed that the transition metals changed the acid and redox properties of the catalysts. The addition of Fe or Cu had positive effects on the activities of the catalyst which is due to the improvement of the electron transfer between the Fe or Cu and the Mo. The effects of the copper content on structure and catalytic activity were also investigated. The Cs1Cu0.3H2P1.2Mo11VO40 catalyst had the best performance for the selective oxidation of methacrolein to methacrylic acid. |
| WOS标题词 | Science & Technology ; Technology |
| 学科主题 | Engineering, Chemical ; Engineering |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | KEGGIN-TYPE HETEROPOLYACIDS ; PHOSPHOMOLYBDIC ACID ; ISOBUTANE OXIDATION ; VOX/CEO2 CATALYSTS ; MOLYBDOVANADOPHOSPHORIC ACIDS ; 12-MOLYBDOPHOSPHORIC ACID ; REDOX PROPERTIES ; ISOBUTYRIC ACID ; ALKALI SALTS ; DEHYDROGENATION |
| 收录类别 | SCI |
| 原文出处 | SPRINGER |
| 语种 | 英语 |
| WOS记录号 | WOS:000371615000012 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20683]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Dalian Polytech Univ, Sch Light Ind & Chem Engn, Dalian 116034, Peoples R China 2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, State Key Lab Multiphase Complex Syst,Key Lab Gre, Beijing 100190, Peoples R China 3.Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yanxia,Zhang, Heng,Wang, Lei,et al. Transition metal-doped heteropoly catalysts for the selective oxidation of methacrolein to methacrylic acid[J]. FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING,2016,10(1):139-146. |
| APA | Zheng, Yanxia,Zhang, Heng,Wang, Lei,Zhang, Suojiang,&Wang, Shaojun.(2016).Transition metal-doped heteropoly catalysts for the selective oxidation of methacrolein to methacrylic acid.FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING,10(1),139-146. |
| MLA | Zheng, Yanxia,et al."Transition metal-doped heteropoly catalysts for the selective oxidation of methacrolein to methacrylic acid".FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING 10.1(2016):139-146. |
入库方式： OAI收割
来源：过程工程研究所
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