Preparation of SiO2@ZIF-67/CNTs and research on its adsorption performance at low-temperature

The investigation of the influence of hydrothermal synthesis conditions such as synthetic temperature, the amount of solvent, addition of additives including sodium hydroxide, lithium chloride and 2-methylimidazole on the morphology and size of MIL-121 was carried out. The experimental results indicated the significant impact of hydrothermal synthesis conditions on the morphologies and sizes of MIL-121 crystals. The synthesis temperature has little effect on the morphology, which is mainly reflected in the change of the aspect ratio, but the effect on the size is significant under low-temperature conditions. Additives have an important influence on the morphology and size of MIL-121. Our study provides a potential for the improvement of MIL-121 adsorption performance.

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Activation of Pd/SSZ-13 catalyst by hydrothermal aging treatment in passive NO adsorption performance at low temperature for cold start application

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2017.04.077 ◽

2017 ◽

Vol 212 ◽

pp. 140-149 ◽

Cited By ~ 46

Author(s):

YoungSeok Ryou ◽

Jaeha Lee ◽

Sung June Cho ◽

Hyokyoung Lee ◽

Chang Hwan Kim ◽

...

Keyword(s):

Low Temperature ◽

Aging Treatment ◽

Cold Start ◽

No Adsorption ◽

Hydrothermal Aging ◽

Adsorption Performance

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Effect of various activation conditions on the low temperature NO adsorption performance of Pd/SSZ-13 passive NOx adsorber

Catalysis Today ◽

10.1016/j.cattod.2017.11.030 ◽

2019 ◽

Vol 320 ◽

pp. 175-180 ◽

Cited By ~ 25

Author(s):

YoungSeok Ryou ◽

Jaeha Lee ◽

Hyokyoung Lee ◽

Chang Hwan Kim ◽

Do Heui Kim

Keyword(s):

Low Temperature ◽

No Adsorption ◽

Adsorption Performance ◽

Nox Adsorber ◽

Activation Conditions ◽

Passive Nox Adsorber

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Study on the Mechanism of SCR NO by Mn-Ce/CNTs Catalyst at Low-Temperature

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.773.645 ◽

2013 ◽

Vol 773 ◽

pp. 645-648 ◽

Cited By ~ 2

Author(s):

Qiao Wen Yang ◽

Peng Fei Li ◽

Bing Nan Ren ◽

Ying Zhu ◽

Dong Yao Xu

Keyword(s):

Low Temperature ◽

Competitive Advantage ◽

Catalyst Surface ◽

Temperature Programmed Desorption ◽

Adsorption Performance ◽

Temperature Programmed ◽

Scr System ◽

Adsorption Desorption ◽

Scr No

The prepared Mn-Ce/CNTs catalyst was tested with Temperature-Programmed Desorption (TPD) in this experiment. The adsorption – desorption of NO, NH3, O2on the surface of catalyst were studied and the mechanism of SCR was analyzed. The conclusions were as follows: NH3was easily absorbed on the surface of Mn-Ce/CNTs catalyst for its significant competitive advantage; it can restrain the absorption of NO. The adsorption performance of NH3on catalyst surface was far greater than NO. When NO, O2adsorbed on the catalyst at the same time, the desorption amount of NO from catalyst significantly was less than the NO absorbed only. This shows that the O2can promote the adsorption of NO on the catalyst in SCR system.

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Influence of Oxide Doping on Co3O4-CeO2 for CO Oxidation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.287-290.1718 ◽

2011 ◽

Vol 287-290 ◽

pp. 1718-1722 ◽

Cited By ~ 1

Author(s):

Jian Xin Cai ◽

Yi Hao Lv ◽

Rong Bin Zhang ◽

Lai Tao Luo

Keyword(s):

Crystal Structure ◽

Low Temperature ◽

Specific Surface ◽

Co Oxidation ◽

Surface Area ◽

Specific Surface Area ◽

Catalytic Properties ◽

Co Adsorption ◽

Adsorption Properties ◽

Adsorption Performance

Ce0.7M0.3CoOx catalysts were prepared by polyatomic alcohol method. The crystal structure, reduction and adsorption properties, and specific surface were investigated by XRD, TPR, TPD, BET, respectively. The results show that catalysts doped with different oxides can make great effects on the catalytic properties of the Co3O4-CeO2. The interaction between doping oxides (SrO, NiO, La2O3, ZrO2, Nd2O3) and Co3O4-CeO2 is contributed to the change of the reduction and adsorption performance, and specific surface area of the catalysts. SrO doping can promote CeO2 reduction, CO adsorption and low-temperature oxidative activity of the catalysts. The conversion of CO can reach 100% over the Ce0.7Sr0.3CoOx at 120 °C temperature.

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