Liquid-Phase Hydration of Acrylonitrile on Skeletal Copper Catalysts Prepared from Cu–Ti and Cu–Zr Amorphous Alloys

1993 ◽  
Vol 66 (7) ◽  
pp. 2133-2135 ◽  
Author(s):  
Takuzo Funabiki ◽  
Hiromi Yamashita ◽  
Makoto Yase ◽  
Toshihiro Omatsu ◽  
Satohiro Yoshida
Keyword(s):  
Liquid Phase ◽  
Amorphous Alloys ◽  
Copper Catalysts ◽  
Skeletal Copper

Silica-supported Cu–Pt bimetallic catalysts for liquid-phase diethyl oxalate hydrogenation

2018 ◽  
Vol 96 (4) ◽  
pp. 394-403 ◽  
Author(s):  
Wei Long ◽  
Pingle Liu ◽  
Yang Lv ◽  
Wei Xiong ◽  
Fang Hao ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Photoelectron Spectroscopy ◽  
Bimetallic Catalysts ◽  
Nitrogen Adsorption ◽  
Hydrogen Uptake ◽  
Copper Catalysts ◽  
Catalytic Performance ◽  
Diethyl Oxalate ◽  
Hydrogen Chemisorption ◽  
Adsorption Desorption

Silica-supported copper catalysts were prepared by different methods, and Cu/SiO2 prepared by the urea-assisted gel method was modified with co-catalyst platinum to obtain Cu-Pt/SiO2 bimetallic catalysts. The prepared catalysts were characterized by nitrogen adsorption–desorption, XRD, TEM, hydrogen chemisorption, ammonia gas chemisorption, and X-ray photoelectron spectroscopy. The characterization results show that the modification of platinum is helpful to the reduction and dispersion of copper species, which increase the hydrogen uptake quantity and metal surface area. The 30%Cu–3.0%Pt/SiO2-6 presents the best catalytic performance in liquid-phase diethyl oxalate hydrogenation; it gives 77.32% conversion of diethyl oxalate and 94.37% selectivity to the main products under 473 K and 3.0 MPa for 4 h. A possible reaction route was also proposed.

Active sites in modified copper catalysts for selective liquid phase dehydration of aqueous glycerol to acetol

RSC Advances ◽  
2013 ◽  
Vol 3 (37) ◽  
pp. 16499 ◽  
Author(s):  
Rasika B. Mane ◽  
Aritomo Yamaguchi ◽  
Atul Malawadkar ◽  
Masayuki Shirai ◽  
Chandrashekhar V. Rode
Keyword(s):  
Liquid Phase ◽  
Active Sites ◽  
Copper Catalysts

scholarly journals Development of Fe–P–C–Cu Immiscible Amorphous Alloys with Liquid Phase Separation

2020 ◽  
Vol 60 (11) ◽  
pp. 2615-2624
Author(s):  
Takeshi Nagase ◽  
Tomoyuki Terai ◽  
Mitsuaki Matsumuro ◽  
Mamoru Takemura
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Amorphous Alloys ◽  
Liquid Phase Separation
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