Selective Hydrogenation of Cinnamaldehyde with Efficient Assembled Pt-Fe/C Catalysts

被引：5

作者：

Zhao Lei ^{[1
]}

Xu Xiang-Sheng ^{[1
]}

Zhang Kai-Chao ^{[1
]}

Yan Xin-Huan ^{[1
]}

机构：

[1] Zhejiang Univ Technol, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2012年 / 28卷 / 04期

关键词：

Pt; Fe; Active carbon; Cinnamaldehyde; Cinnamyl alcohol; Selective hydrogenation; LIQUID-PHASE HYDROGENATION; SOL-GEL CATALYST; CINNAMYL ALCOHOL; CARBON NANOTUBES; NANOPARTICLES; PLATINUM;

D O I：

10.3866/PKU.WHXB201202081

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Platinum nanoparticles (d=2.0 nm) were obtained by decomposition of Pt-2(dba)(3) (dba: dibenzalacetone) and captured by active carbon modified with Fe to prepare a Pt-Fe/C catalyst. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray spectrometry (EDS) were used to characterize the size, distribution, electronic state of the Pt and Fe nanoparticles, and surface elements of the catalysts. The catalysts selectively hydrogenated cinnamaldehyde (CAL) to cinnamyl alcohol (COL), and the activity was more than one time that of a Pt/C catalyst prepared by the impregnation method. The 1% (w, mass fraction)Pt-1.5% (w)Fe/C catalyst exhibited the highest activity and selectivity at 60 degrees C, 2.5 h, and 4.0 MPa H-2. The conversion for CAL was 99.2%, and the selectivity of CAL to COL was 85.0%.

引用

页码：923 / 927

页数：5

共 21 条

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