Hollow PtRu Nanospheres Catalyst Supported on Activated Carbon Fiber and Carbon Nanotubes for Methanol Electroxidation

2011 ◽  
Vol 391-392 ◽  
pp. 3-7
Author(s):  
Hui Xing Huang ◽  
Hai Chao Li ◽  
Shao Bin Huang ◽  
Shui Xia Chen
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Room Temperature ◽  
Homogeneous Solution ◽  
Average Diameter ◽  
Activated Carbon Fiber ◽  
Poisoning Effect ◽  
Co Nanoparticles ◽  
Lower Oxidation

PtRu hollow nanospheres catalysts supported on activated carbon fiber (ACF) and carbon nanotubes (CNTs) were simply prepared at room temperature in a homogeneous solution with Co nanoparticles as sacrificial templates. TEM measurements showed that the coreless PtRu nanospheres supported on ACF and CNTs were both from composed 20 to 30 nm with an average diameter of 24 nm. The shells of the nanospheres on ACF composed of PtRu nanocrystals with a size of 5 nm, while those on CNTs were 3 nm. Electrochemical measurements demonstrated that hollow-PtRu/ACF showed a lower oxidation current density towards methanol electroxidation but a better tolerance to poisoning effect than hollow-PtRu/CNTs. The poorer performance of hollow-PtRu/CNTs may be caused by the phase separation.

Reaction of NO2 in air at room temperature with urea supported on pitch based activated carbon fiber

2004 ◽  
Vol 52 (3) ◽  
pp. 173-179 ◽  
Author(s):  
N Shirahama ◽  
I Mochida ◽  
Y Korai ◽  
K.-H Choi ◽  
T Enjoji ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Room Temperature ◽  
Activated Carbon Fiber

Removal of NOx from air through cooperation of the TiO2 photocatalyst and urea on activated carbon fiber at room temperature

2011 ◽  
Vol 110 ◽  
pp. 273-278 ◽  
Author(s):  
Jin Miyawaki ◽  
Takaaki Shimohara ◽  
Noriaki Shirahama ◽  
Akinori Yasutake ◽  
Masaaki Yoshikawa ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Room Temperature ◽  
Activated Carbon Fiber ◽  
Tio2 Photocatalyst

Nanocrystalline MnO2 on an activated carbon fiber for catalytic formaldehyde removal

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97022-97029 ◽  
Author(s):  
Zijian Dai ◽  
Xiaowei Yu ◽  
Chen Huang ◽  
Meng Li ◽  
Jiafei Su ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Room Temperature ◽  
Activated Carbon Fiber ◽  
Modified Activated Carbon ◽  
Formaldehyde Removal ◽  
Catalytic Removal

The synergistic catalytic removal of HCHO was achieved over a nanocrystalline MnO2-modified activated carbon fiber at room temperature.

Activated Carbon Fiber Supported PtRu Hollow Nanospheres and PtRu Nanoparticles for Methanol Electrooxidation

2011 ◽  
Vol 347-353 ◽  
pp. 3641-3644
Author(s):  
Hui Xing Huang ◽  
Shao Bin Huang ◽  
Shui Xia Chen
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
High Surface ◽  
High Surface Area ◽  
Homogeneous Solution ◽  
Activated Carbon Fiber ◽  
Hollow Nanospheres ◽  
X Ray ◽  
Oxidation Of Methanol ◽  
Ptru Nanoparticles

Activated carbon Fiber supported PtRu hollow nanospheres have been prepared by a replacement reation in a homogeneous solution with cobalt nanoparticles as sacrificial templates. The morphology, elemental composition, structure and electrocatalytic properties of the PtRu hollow nanospheres have been investigated by transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and typical electrochemical methods, respectively. The results indicate that the ACF supported PtRu hollow nanospheres show a high activity and stability for electrocatalytic oxidation of methanol as compared to co-reduced solid PtRu nanoparticles. The reasons of the high electrocatalytic activity due to the high surface area resulted from the hollow nanosphere structure with porous shell.

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