Structure and catalytic properties of magnesia-supported copper salts of molybdovanadophosphoric acid
文献类型：期刊论文
| 作者 | Zhou GD ; Yang XM ; Liu J ; Zhen KJ ; Wang HS ; Cheng TX |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2006 |
| 卷号 | 110期号:20页码:9831-9837 |
| 关键词 | PHASE OXIDATIVE DEHYDROGENATION ISOBUTYRIC ACID HETEROPOLY COMPOUNDS 12-MOLYBDOPHOSPHORIC ACID SELECTIVE OXIDATION METAL-SALTS 12-HETEROPOLYMOLYBDATES POLYANILINE SILICA STABILITY |
| ISSN号 | 1520-6106 |
| 通讯作者 | wang hs |
| 中文摘要 | the structure and stability of magnesia-supported copper salts of molybdovanadophosphoric acid (cu2pmo11vo40) were characterized by different techniques. the catalyst was prepared in ethanol by impregnation because this solvent does not hurt texture of the water-sensitive mgo and cu2pmo11vo40. the keggin-type structure compound may be degraded partially to form oligomerized polyoxometalate when supported on mgo. however, the oligomers can rebuild as the keggin structure again after thermal treatment in air or during the reaction. meanwhile, the v atoms migrate out of the keggin structure to form a lacunary structure, as observed by fourier transform ir spectroscopy. moreover, the presence of cu2+ as a countercation showed an affirmative influence on the migration of v atoms, and the active sites derived from the lacunary species generated after release of v from the keggin anion. the electron paramagnetic resonance data imply that v5+ autoreduces to v4+ in the fresh catalyst, and during the catalytic reaction a large number of v4+ ions are produced, which enhance the formation of o2- vacancies around the metal atoms. these oxygen vacancies may also improve the reoxidation function of the catalyst. this behavior is correlated to higher catalytic properties of this catalyst. the oxidative dehydrogenation of hexanol to hexanal was studied over this catalyst. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000237626400019 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/15987]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhou GD,Yang XM,Liu J,et al. Structure and catalytic properties of magnesia-supported copper salts of molybdovanadophosphoric acid[J]. journal of physical chemistry b,2006,110(20):9831-9837. |
| APA | Zhou GD,Yang XM,Liu J,Zhen KJ,Wang HS,&Cheng TX.(2006).Structure and catalytic properties of magnesia-supported copper salts of molybdovanadophosphoric acid.journal of physical chemistry b,110(20),9831-9837. |
| MLA | Zhou GD,et al."Structure and catalytic properties of magnesia-supported copper salts of molybdovanadophosphoric acid".journal of physical chemistry b 110.20(2006):9831-9837. |
入库方式： OAI收割
来源：长春应用化学研究所
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