Selective hydrogenation of 1,3-butadiene over bimetallic Au-Ni/TiO2 catalysts prepared by deposition-precipitation with urea

被引：45
|
作者：
Aguilar-Tapia, Antonio [1 ]
Delannoy, Laurent [2 ]
Louis, Catherine [2 ]
Han, Chang Wan [3 ]
Ortalan, Volkan [3 ]
Zanella, Rodolfo [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Circuito Exterior S-N,Ciudad Univ,AP 70-186, Mexico City 04510, DF, Mexico
[2] UPMC Univ Paris 06, Sorbonne Univ, CNRS, UMR 7197,Lab Reactivite Surface, Case 178,4 Pl Jussieu, F-75252 Paris, France
[3] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA
来源：
JOURNAL OF CATALYSIS | 2016年 / 344卷
基金：
美国国家科学基金会;
关键词：
Selective hydrogenation; Butadiene; Alkadiene; Gold; Nickel; Bimetallic catalysts; Au-Ni; SUPPORTED GOLD CATALYSTS; CO OXIDATION; ELECTRON-MICROSCOPY; NANOPARTICLES; STABILITY; TITANIA; TIO2; SIZE; MECHANISM; ALKENES;
D O I：
10.1016/j.jcat.2016.10.025
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：
Bimetallic Au-Ni supported on TiO2 were prepared using co-deposition-precipitation with urea and tested on the selective hydrogenation of 1,3-butadiene. The catalyst containing the lower amount of Ni (atomic Au:Ni 1:0.08) showed a satisfying compromise between activity provided by Ni and selectivity to butenes provided by Au for this selective hydrogenation reaction. Even though Au and Ni exhibit limited miscibility in the bulk, characterizations by TPR and UV-vis spectroscopy showed evidence of interaction between Au and Ni in nanoparticles. STEM-XEDS study confirmed the formation of bimetallic nanoparticles. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：515 / 523
页数：9
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