Synergetic effect of Pd and Ag dispersed on MgO in the reduction of NO by H2 at room temperature

1996 ◽  
pp. 1115-1124 ◽  
Author(s):  
Shuichi Naito ◽  
Yoshihiro Tanaka
Keyword(s):  
Room Temperature ◽  
Synergetic Effect ◽  
Reduction Of No ◽  
Effect Of Pd

Hollow structured CoSn(OH)6-supported Pt for effective room-temperature oxidation of gaseous formaldehyde

2016 ◽  
Vol 09 (06) ◽  
pp. 1642009 ◽  
Author(s):  
Jing Zhou ◽  
Yong Zhao ◽  
Lifan Qin ◽  
Chen Zeng ◽  
Wei Xiao
Keyword(s):  
Electron Microscopy ◽  
Catalytic Activity ◽  
Room Temperature ◽  
Synergetic Effect ◽  
Hollow Structure ◽  
Pt Nanoparticles ◽  
Hydroxyl Groups ◽  
High Catalytic Activity ◽  
Temperature Oxidation ◽  
X Ray

Uniform CoSn(OH)6 hollow nanoboxes and the derivative with Pt loading (Pt/CoSn(OH)6) were herein synthesized and characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). SEM and TEM analyses showed that CoSn(OH)6 possessed mesoporous hollow structure and Pt nanoparticles with size of 2–8[Formula: see text]nm were uniformly dispersed on the surface of CoSn(OH)6 nanoboxes. The performances of the catalysts for the formaldehyde (HCHO) removal at room temperature were evaluated. These Pt/CoSn(OH)6 catalysts exhibited a remarkable catalytic activity as well as stability for room-temperature oxidative decomposition of gaseous HCHO, while the corresponding CoSn(OH)6 only showed adsorption. The synergetic effect between the highly dispersed Pt nanoparticles and the CoSn(OH)6 nanoboxes with mesoporous hollow structure, a large surface area and abundant surface hydroxyl groups is considered to be the main reason for the observed high catalytic activity of Pt/CoSn(OH)6.

Synergetic Effects between Al2O3 and HZSM-5 for NO Reduction by CH4

2011 ◽  
Vol 214 ◽  
pp. 364-368
Author(s):  
Li Li Ren ◽  
Xiao Mei Pan
Keyword(s):  
Catalytic Activity ◽  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Synergetic Effect ◽  
Separate Component ◽  
Reduction Of No ◽  
Synergetic Effects

Three different kinds of Al2O3 have been added to HZSM-5 for improving its activity towards selective catalytic reduction of NO with CH4 in the presence of excess of oxygen. Higher conversions of NO have been observed for all of the three mixed catalysts, the conversion of which were also found to be higher than that of each separate component of the catalysts. It was concluded that there exists a synergetic effect between Al2O3 and HZSM-5. The addition of Al2O3 can improve the catalytic activity of HZSM-5 by inhibiting the decomposing of NO2 to NO and accelerating the activation of methane. Adsorbed NO2 is then reduced by the activated methane or the intermediates formed from activated methane to N2 over the Brønsted site of zeolite.

High-temperature catalysts with a synergetic effect of Pd and manganese oxides

2006 ◽  
Vol 117 (4) ◽  
pp. 525-535 ◽  
Author(s):  
S.A. Yashnik ◽  
Z.R. Ismagilov ◽  
V.V. Kuznetsov ◽  
V.V. Ushakov ◽  
V.A. Rogov ◽  
...  
Keyword(s):  
High Temperature ◽  
Manganese Oxides ◽  
Synergetic Effect ◽  
Effect Of Pd

Hydrogen Sensing under Ambient Conditions Using SnO2 Nanowires: Synergetic Effect of Pd/Sn Codeposition

Nano Letters ◽  
2013 ◽  
Vol 13 (12) ◽  
pp. 5938-5943 ◽  
Author(s):  
Seung Ho Jeong ◽  
Sol Kim ◽  
Junho Cha ◽  
Min Soo Son ◽  
Sang Han Park ◽  
...  
Keyword(s):  
Synergetic Effect ◽  
Ambient Conditions ◽  
Hydrogen Sensing ◽  
Sno2 Nanowires ◽  
Effect Of Pd

Reduction of NO of Very Low Concentration in Air with NH3 at Room Temperature over Calcined Active Carbon Fibers

1995 ◽  
Vol 9 (4) ◽  
pp. 659-664 ◽  
Author(s):  
Isao Mochida ◽  
Shizuo Kawano ◽  
Motohiro Hironaka ◽  
Shunsuke Yatsunami ◽  
Yozo Korai ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Active Carbon ◽  
Room Temperature ◽  
Reduction Of No ◽  
Low Concentration
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