Formation of Supported Intermetallic Nanoparticles in the Pd-Zn/α-Al2O3 Catalyst

被引：17
|
作者：
Mashkovsky, I. S. [1 ]
Markov, P. V. [1 ]
Bragina, G. O. [1 ]
Baeva, G. N. [1 ]
Bukhtiyarov, A. V. [2 ]
Prosvirin, I. P. [2 ]
Bukhtiyarov, V. I. [2 ]
Stakheev, A. Yu. [1 ]
机构：
[1] Russian Acad Sci, Zelinsky Inst Organ Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia
来源：
KINETICS AND CATALYSIS | 2017年 / 58卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
Pd-Zn; intermetallic compound; X-ray diffraction; electron microscopy; XPS; SELECTIVE HYDROGENATION; PDZN ALLOY; ELECTRON-MICROSCOPY; ORGANIC-SYNTHESIS; CHEMICAL-SYSTEMS; SURFACE ALLOYS; PARTICLE-SIZE; METHANOL; STEAM; PD/ZNO;
D O I：
10.1134/S0023158417040127
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：
The structure of the Pd-Zn/alpha-Al2O3 catalyst, which was prepared by a joint impregnation method, was studied. According to XRD analysis data, supported intermetallic Pd-Zn particles were formed in a temperature range of 200-600A degrees C. At 600A degrees C, the crystal lattice of substitutional solid solution based on Pd (FCC) was finally rearranged into the tetragonal lattice of Pd-Zn. A shift of the Pd3d(5/2) line in the XPS spectrum indicated the formation of the Pd-Zn intermetallic compound.
引用
收藏
页码：471 / 479
页数：9
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