Deactivation of Au/TiO(2) catalyst in the hydrogenation of o-chloronitrobenzene in the presence of CO(2)
文献类型：期刊论文
| 作者 | Hao YF ; Liu RX ; Meng XC ; Cheng HY ; Zhao FY |
| 刊名 | journal of molecular catalysis a-chemical
 |
| 出版日期 | 2011 |
| 卷号 | 335期号:1-2页码:183-188 |
| 关键词 | SUPERCRITICAL CARBON-DIOXIDE SELECTIVE HYDROGENATION GOLD CATALYSTS CHEMOSELECTIVE HYDROGENATION MOLECULAR-INTERACTIONS PARTICLE-SIZE OXIDATION NANOPARTICLES WATER CHLOROANILINE |
| ISSN号 | 1381-1169 |
| 通讯作者 | zhao fy |
| 中文摘要 | the hydrogenation of o-chloronitrobenzene over au/tio(2) was investigated in supercritical carbon dioxide (scco(2)), ethanol, h(2)o, and h(2)o/co(2) at 140 degrees c. the reaction rate followed the order of h(2)o > h(2)o/co(2) > ethanol > scco(2). au/tio(2) was deactivated in the systems containing co(2). changes of au/tio(2) catalysts were investigated by means of transmission electron microscopy (tem), in situ infrared (ir) spectroscopy, x-ray photoelectron spectroscopy (xps), and diffuse reflectance ultraviolet-visible spectra (dr-uv/vis). aggregation of au particles was excluded from origins of deactivation by tem. carbonate-like species formed on gold in the presence of co(2) and h(2) were detected by in situ ir spectroscopy. the results of xps and dr-uv/vis reveal that the active species of au(0) was oxidized in the presence of co(2). the possible formation of co and its influence on the activity of au/tio(2) were also discussed. accordingly, the formation of carbonates, the oxidation of surface au(0) by co(2), and the co formation are proposed to be the possible factors for the deactivation of au/tio(2). (c) 2010 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44847]  |
| 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 | Hao YF,Liu RX,Meng XC,et al. Deactivation of Au/TiO(2) catalyst in the hydrogenation of o-chloronitrobenzene in the presence of CO(2)[J]. journal of molecular catalysis a-chemical,2011,335(1-2):183-188. |
| APA | Hao YF,Liu RX,Meng XC,Cheng HY,&Zhao FY.(2011).Deactivation of Au/TiO(2) catalyst in the hydrogenation of o-chloronitrobenzene in the presence of CO(2).journal of molecular catalysis a-chemical,335(1-2),183-188. |
| MLA | Hao YF,et al."Deactivation of Au/TiO(2) catalyst in the hydrogenation of o-chloronitrobenzene in the presence of CO(2)".journal of molecular catalysis a-chemical 335.1-2(2011):183-188. |
入库方式： OAI收割
来源：长春应用化学研究所
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