Characterization and performance of v(2)o(5)-tio(2) catalysts prepared by rapid combustion method
文献类型：期刊论文
| 作者 | Guo, Heqin1,2; Li, Debao1; Jiang, Dong1; Xiao, Haicheng1,2; Li, Wenhuai1; Sun, Yuhan1 |
| 刊名 | Catalysis today
 |
| 出版日期 | 2010-12-22 |
| 卷号 | 158期号:3-4页码:439-445 |
| 关键词 | Vo(x)-tio(2) catalysts Rapid combustion method Methanol oxidation reaction |
| ISSN号 | 0920-5861 |
| DOI | 10.1016/j.cattod.2010.06.007 |
| 通讯作者 | Li, debao(dbli@sxicc.ac.cn) |
| 英文摘要 | The vo(x)-tio(2) (vt) catalysts were prepared by the rapid combustion (rc) method and characterized by sem, xrd, raman, xps, nh(3)-tpd and h(2)-tpr techniques. the catalytic performance was evaluated in the methanol oxidation reaction. the sem result showed that the vt catalysts were consisted of nanoparticle with mean grain size about 30 nm. the rc process enhanced the formation of ti((1-x))v(x)o(2). the xrd and raman results revealed that the vanadia transformed from the isolated vo(x) to polymeric vo(x) and then as crystalline v(2)o(5) on the surface of v(x)t(i(1-x))o(2). the polymeric vo(x) was predominant when v(2)o(5) content was 30 wt.%. the h(2)-tpr and nh(3)-tpd results showed that the polymeric vo(x) exhibited more acidic sites and stronger reducibility than isolated vo(x) and crystalline v(2)o(5). the catalytic activity result showed that the polymeric vo(x) was more active in methanol oxidation. the product distribution showed that the vt catalysts had redox-acidity bifunctional properties suitable for dimethoxymethane (dmm) synthesis, and the dmm selectivity was closely related to the reducibility and acidic sites. (c) 2010 elsevier b.v. all rights reserved. |
| WOS关键词 | SUPPORTED VANADIA CATALYSTS ; TEMPERATURE-PROGRAMMED REDUCTION ; OXIDE MONOLAYER CATALYSTS ; SELECTIVE OXIDATION ; METHANOL OXIDATION ; PHTHALIC-ANHYDRIDE ; IONIC DISPERSION ; ACTIVE-SITES ; TIO2 ; V2O5 |
| WOS研究方向 | Chemistry ; Engineering |
| WOS类目 | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000284583300039 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2408055 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Debao |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Heqin,Li, Debao,Jiang, Dong,et al. Characterization and performance of v(2)o(5)-tio(2) catalysts prepared by rapid combustion method[J]. Catalysis today,2010,158(3-4):439-445. |
| APA | Guo, Heqin,Li, Debao,Jiang, Dong,Xiao, Haicheng,Li, Wenhuai,&Sun, Yuhan.(2010).Characterization and performance of v(2)o(5)-tio(2) catalysts prepared by rapid combustion method.Catalysis today,158(3-4),439-445. |
| MLA | Guo, Heqin,et al."Characterization and performance of v(2)o(5)-tio(2) catalysts prepared by rapid combustion method".Catalysis today 158.3-4(2010):439-445. |
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来源：中国科学院大学
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