Carbon dioxide reforming of methane on Ni–MgO–Al2O3 catalysts prepared by sol–gel method: Effects of Mg/Al ratios

2015 ◽  
Vol 26 ◽  
pp. 375-383 ◽  
Author(s):  
Ji-Eun Min ◽  
Yun-Jo Lee ◽  
Hae-Gu Park ◽  
Chundong Zhang ◽  
Ki-Won Jun
2017 ◽  
Vol 42 (26) ◽  
pp. 16459-16475 ◽  
Author(s):  
Wenqing Hou ◽  
Yuqi Wang ◽  
Yukun Bai ◽  
Wen Sun ◽  
Weijian Yuan ◽  
...  

2011 ◽  
Vol 197-198 ◽  
pp. 593-597
Author(s):  
Xiao Gu Huang ◽  
Jiao Chen ◽  
Peng De Han ◽  
Hong Zhou Wang ◽  
Shao Teng Yan ◽  
...  

Ba(Zn0.3Co0.7)2Fe16O27hexagonal ferrites have been prepared by sol-gel method. Effects of polyvinyl pyrrolidone (PVP) on crystalline phase, natural surface and electromagnetic properties were analyzed. The XRD patterns of samples with and without PVP added both showed the single phase of hexagonal ferrite. The particle thickness increased when PVP was added. Moreover, Ferrites prepared with 2.0g PVP added into the sol solution had lower complex permittivity. Addition of PVP can be an effective way to obtain the electromagnetic match of hexagonal ferrites.


2004 ◽  
Vol 449-452 ◽  
pp. 469-472 ◽  
Author(s):  
Chang Hyun Kim ◽  
Jin Hong Lee ◽  
Byung Ok Park

Indium-zinc oxide (IZO), with Zn/(Zn+In)=0.33 - 0.78, films were deposited by the sol-gel method. Effects of Zn/(Zn+In) atomic ratio and annealing temperature on the structural, electrical and optical properties of IZO thin film were investigated. Films of Zn/(Zn+In)=0.33 prepared at 600°C had the lowest resistivity value, 4.48X10-2Ω cm (carrier concentration=3.83X 1018cm-3and mobility=25.54 cm2/Vs), and the structure of these films matched that of Zn2In2O5film. Average optical transmittances of all films were above 80% in the visible range. The highest average transmittance was observed at Zn/(Zn+In)=0.5, with 86.8% in the visible range.


Author(s):  
M.Rahim Uddin ◽  
Maksudur R. Khan ◽  
M. Wasikur Rahman ◽  
Chin Kui Cheng ◽  
Abu Yousuf

The present work is a significant approach to explore the photo-conversion of carbon dioxide (CO2) into methanol on Bi2S3/Cds photocatalyst under visible light irradiation. In this perspective, Bi2S3 nanoparticles have been successfully synthesized via corresponding salt and thiourea assisted sol-gel method. An innovative hetero-system Bi2S3/CdS has been proposed to achieve methanol photo evolution and its photocatalytic activities have been investigated.


1995 ◽  
Vol 25 (1-3) ◽  
pp. 607-609 ◽  
Author(s):  
Duk-Dong Lee ◽  
Soon-Don Choi ◽  
Kwang-Woo Lee

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