Ni–PC@SBA-15 derived from nano-sized Ni-MOF-74 confined in SBA-15 as a highly active catalyst for gas phase catalytic hydrodechlorination of 1,2-dichloroethane

2020 ◽  
Vol 56 (51) ◽  
pp. 6985-6988
Author(s):  
Xin Ning ◽  
Dongzhi Deng ◽  
Heyun Fu ◽  
Xiaolei Qu ◽  
Zhaoyi Xu ◽  
...  
Keyword(s):  
Gas Phase ◽  
Porous Carbon ◽  
Active Catalyst ◽  
Carbon Composite ◽  
Catalytic Hydrodechlorination ◽  
Highly Active ◽  
Highly Effective

A novel Ni-porous carbon composite confined in SBA-15 was fabricated for highly effective and selective gas phase catalytic hydrodechlorination of 1,2-dichloroethane.

scholarly journals Gas-Phase Epoxidation of Propylene to Propylene Oxide on a Supported Catalyst Modified with Various Dopants

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 638 ◽  
Author(s):  
Sugiyama ◽  
Sakuwa ◽  
Ogino ◽  
Sakamoto ◽  
Shimoda ◽  
...  
Keyword(s):  
Gas Phase ◽  
Propylene Oxide ◽  
Active Catalyst ◽  
Supported Catalyst ◽  
Acid Base ◽  
Epoxidation Of Propylene ◽  
Highly Active ◽  
Acidic Catalysts ◽  
Carbonate Species ◽  
Metal Doped

In the present study, the production of propylene oxide (PO) from propylene via gas-phase epoxidation was investigated using various catalysts. Although Ag is known to be a highly active catalyst for the epoxidation of ethylene, it was not active in the present reaction. Both Al and Ti showed high levels of activity, however, which resulted in confusion. The present study was conducted to solve such confusion. Although the employment of MCM-41 modified with Ti and/or Al was reported as an active catalyst for epoxidation, the combination resulted in the formation of PO at a less than 0.1% yield. Since this research revealed that the acidic catalyst seemed favorable for the formation of PO, versions of ZSM-5 that were both undoped and doped with Na, Ti, and Ag were used as catalysts. In these cases, small improvements of 0.67% and 0.57% were achieved in the PO yield on H‒ZSM-5 and Ti‒ZSM-5, respectively. Based on the results of the Ti-dopant and acidic catalysts, Ag metal doped on carbonate species with a smaller surface area was used as a catalyst. As reported, Ag‒Na/CaCO3 showed a greater yield of PO at 1.29%. Furthermore, the use of SrCO3 for CaCO3 resulted in a further improvement in the PO yield to 2.17%. An experiment using CO2 and NH3 pulse together with SEM and TEM examinations for Ag‒Na/CaCO3 revealed that the greatest activity was the result of the greater particle size of metallic Ag rather than the acid‒base properties of the catalysts.

Preparation of sulfur/multiple pore size porous carbon composite via gas-phase loading method for lithium-sulfur batteries

2014 ◽  
Vol 137 ◽  
pp. 411-415 ◽  
Author(s):  
Long-Yan Li ◽  
Yan-Xiao Chen ◽  
Xiao-Dong Guo ◽  
Ben-He Zhong ◽  
Yan-Jun Zhong
Keyword(s):  
Pore Size ◽  
Gas Phase ◽  
Porous Carbon ◽  
Carbon Composite ◽  
Loading Method ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Hierarchical macrotube/mesopore carbon decorated with mono-dispersed Ag nanoparticles as a highly active catalyst

2015 ◽  
Vol 17 (4) ◽  
pp. 2515-2523 ◽  
Author(s):  
Tuo Ji ◽  
Long Chen ◽  
Michael Schmitz ◽  
Forrest Sheng Bao ◽  
Jiahua Zhu
Keyword(s):  
Catalytic Activity ◽  
Porous Carbon ◽  
Ag Nanoparticles ◽  
Active Catalyst ◽  
Carbon Substrate ◽  
Reduction Reactions ◽  
Highly Active ◽  
Nitrophenol Reduction

Mono-dispersed Ag nanoparticles supported on hierarchical macrotube/mesopore porous carbon substrate show excellent catalytic activity in nitrophenol reduction reactions.

scholarly journals Gas-phase dehydration of glycerol over thermally-stable SAPO-40 catalyst

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10667-10674 ◽  
Author(s):  
J. P. Lourenço ◽  
A. Fernandes ◽  
R. A. Bértolo ◽  
M. F. Ribeiro
Keyword(s):  
Gas Phase ◽  
Active Catalyst ◽  
Thermally Stable ◽  
Highly Active

SAPO-40 as a stable and highly active catalyst for the selective dehydration of glycerol towards acrolein.

Small-sized HZSM-5 zeolite as highly active catalyst for gas phase dehydration of glycerol to acrolein

2010 ◽  
Vol 269 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Chun-Jiang Jia ◽  
Yong Liu ◽  
Wolfgang Schmidt ◽  
An-Hui Lu ◽  
Ferdi Schüth
Keyword(s):  
Gas Phase ◽  
Active Catalyst ◽  
Highly Active
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