Mesoporous silica-supported NiB amorphous alloy catalysts for selective hydrogenation of 2-ethylanthraquinone

2004 ◽  
Vol 227 (2) ◽  
pp. 419-427 ◽  
Author(s):  
Xueying Chen ◽  
Shuai Wang ◽  
Jihua Zhuang ◽  
Minghua Qiao ◽  
Kangnian Fan ◽  
...  
Keyword(s):  
Amorphous Alloy ◽  
Mesoporous Silica ◽  
Selective Hydrogenation ◽  
Alloy Catalysts

scholarly journals Progress in Ru-Based Amorphous Alloy Catalysts for Selective Hydrogenation of Benzene to Cyclohexene

2011 ◽  
Vol 32 (1-2) ◽  
pp. 1-16 ◽  
Author(s):  
Haijie SUN ◽  
Wei GUO ◽  
Xiaoli ZHOU ◽  
Zhihao CHEN ◽  
Zhongyi LIU ◽  
...  
Keyword(s):  
Amorphous Alloy ◽  
Selective Hydrogenation ◽  
Alloy Catalysts

Preparation and Characterization of Bulk and Supported NiB Amorphous Alloy Catalysts with Different Particle Sizes

2007 ◽  
Vol 121-123 ◽  
pp. 637-640
Author(s):  
Lai Jun Wang ◽  
Wei Li ◽  
M.H. Zhang ◽  
K.Y. Tao
Keyword(s):  
Amorphous Alloy ◽  
Electroless Plating ◽  
Chemical Reduction ◽  
Reaction System ◽  
Catalytic Performance ◽  
Ni Catalyst ◽  
Particle Sizes ◽  
Raney Ni ◽  
Reduction Methods ◽  
Alloy Catalysts

A series of bulk and supported NiB amorphous alloy catalysts with different particle sizes were prepared by different chemical reduction methods. By adding a certain volume of NH3 to the reaction system and adjusting the reaction temperature, respectively, the velocity of the reaction between Ni2+ and BH4 - could be controlled and the NiB alloys with particle sizes ranging from 10 to 400nm were obtained. A novel method to prepare the supported NiB catalyst, the powder electroless plating method was also studied. The bulk and supported NiB catalysts were characterized by XRD, ICP and TEM. Hydrogenation of sulfolene was selected as the probe reaction to investigate their catalytic performance. The results revealed that the NiB/MgO prepared by Ag inducing electroless plating showed much higher catalytic activity than Raney Ni catalyst, and the powder electroless plating was a promising method to prepare the supported NiB amorphous alloy catalysts.

Self-assembly of mesoporous Ni–B amorphous alloy catalysts

2006 ◽  
Vol 244 (2) ◽  
pp. 251-254 ◽  
Author(s):  
H LI ◽  
Q ZHAO ◽  
Y WAN ◽  
W DAI ◽  
M QIAO
Keyword(s):  
Amorphous Alloy ◽  
Self Assembly ◽  
Alloy Catalysts

Furfural hydrogenation over amorphous alloy catalysts prepared by different reducing agents

BioResources ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. 8755-8774
Author(s):  
Haijun Guo ◽  
Hairong Zhang ◽  
Weichao Tang ◽  
Can Wang ◽  
Chao Huang ◽  
...  
Keyword(s):  
Amorphous Alloy ◽  
Active Sites ◽  
Chemical Reduction ◽  
Surface Concentration ◽  
Reducing Agents ◽  
Chemical Reduction Method ◽  
Transfer Capability ◽  
Furfural Hydrogenation ◽  
Adsorption Desorption ◽  
Alloy Catalysts

The catalytic hydrogenation of furfural was studied over a series of Ni-B, Co-B, and Ni-Co-B amorphous alloy catalysts that were prepared by the chemical reduction method using KBH4 and NaBH4 as reducing agents. These catalysts were characterized by N2 adsorption/desorption, XRD, XPS, FE-SEM, and TEM. The results showed that NaBH4 had a much stronger reduction ability to enhance the surface concentration of the metallic active sites for furfural hydrogenation and electron transfer capability, leading to much higher hydrogenation activity. In the Ni-Co-B amorphous alloy catalyst, the equilibrium between the isolated Ni-B/Co-B active sites and the combined Ni-Co-B active sites was important in regulating furfural conversion and products distribution.

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