Catalytic activity of nanostructured plate-type Cu-based on ZnO nanorods promoted by additive metals for oxidative steam reforming of methanol

2011 ◽  
Vol 1303 ◽  
Author(s):  
Chien-Cheng Li ◽  
Ran-Jin Lin ◽  
Hong-Ping Lin ◽  
Li-Chyong Chen ◽  
Kuei-Hsien Chen

ABSTRACTThe Cu-based film catalysts with various additive metals have been successfully prepared by the electroless plating on ZnO nanorods/stainless steel substrates. The microstructure features of the Cu-based films are highly porous and composed of plate-type grains. The addition of zirconium, aluminum, and iron into Cu-based film catalyst can improve the activity and the stability of the film catalysts. The catalytic durability of the Cu-based film catalysts has also been improved by addition of Zr, Al, and Fe into Cu-based films. This is attributed to the formation of the stable ZrO2, Al2O3, and Fe2O3 nanoparticles with good dispersion in the films.

2009 ◽  
Vol 1217 ◽  
Author(s):  
Chien-Cheng Li ◽  
Ran-Jin Lin ◽  
Li-Chyong Chen ◽  
Kuei-Hsien Chen

AbstractThe Cu-type and (Cu-Fe)-type film catalysts have been successfully prepared by the electroless plating on ZnO nanorods/stainless steel substrates. The microstructure features of the (Cu-Fe)-type films are high porosity and plate-type grains. The addition of iron into Cu-type film can improve the reducibility and the stability of the film catalysts. The reduction temperature of the (Cu-Fe)-type film catalysts decreases with increasing the addition of Fe. For Cu-5 at% Fe film, the reduction temperature is in the range of 195°C to 216°C as comparison in the range of 208°C to 233°C of the Cu-type film catalysts.


2011 ◽  
Vol 47 (5) ◽  
pp. 1473-1475 ◽  
Author(s):  
Chien-Cheng Li ◽  
Ran-Jin Lin ◽  
Hong-Ping Lin ◽  
Yu-Kai Lin ◽  
Yan-Gu Lin ◽  
...  

2007 ◽  
Vol 28 (3) ◽  
pp. 234-238 ◽  
Author(s):  
Yanhua WANG ◽  
Jingchang ZHANG ◽  
Hengyong XU ◽  
Xuefeng Bai

2014 ◽  
Vol 118 (18) ◽  
pp. 9485-9496 ◽  
Author(s):  
Yufei Ma ◽  
Guoqing Guan ◽  
Patchiya Phanthong ◽  
Xiaogang Hao ◽  
Wei Huang ◽  
...  

2011 ◽  
Vol 324 ◽  
pp. 157-161 ◽  
Author(s):  
Mary Mrad ◽  
Cédric Gennequin ◽  
Antoine Aboukaïs ◽  
Edmond Abi-Aad

The performances of different xCu10Ce and xZn10Ce (x = 1, 3, and 5) catalysts prepared by impregnation method then pelletised, were investigated in the steam reforming of methanol (SRM) under a GHSV = 15500 h-1 with H2O/CH3OH = 2. The impregnation of copper over ceria supports shows better results than that of zinc. The catalytic activity in the Cu-based depends on the dispersion of the copper species. The methanol conversion rate is related to the formation of an optimum content of reduced copper species.


2019 ◽  
Vol 129 (1) ◽  
pp. 219-233
Author(s):  
Oleksandr Shtyka ◽  
Radoslaw Ciesielski ◽  
Evgeny Kitsyuk ◽  
Andrey Savitsky ◽  
Tomasz Maniecki

Abstract The aim of the work was to investigate how the size of Ni and Cu-supported nanoparticles influence their activity in an oxidative steam reforming of methanol. The size of metal particles was controlled by the initial introduction or elimination of oxygen-containing groups on the surface of carbon nanotubes. The results of the activity tests showed that catalysts with the smallest metal nanoparticles were the least active since they easily underwent oxidation during the process.


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