scholarly journals A Simulation Study of Effect of Mn-Ce/γ-Al2O3on NOxStorage and Reduction over Pt-Ce-Ba/γ-Al2O3Catalysts

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Lili Lei ◽  
Chuan Sun ◽  
Bo Zhang ◽  
Wenye Gu

A series of Pt-Ce-Ba/γ-Al2O3and Mn-Ce/γ-Al2O3catalysts were synthesized by a sol-gel method and the samples were characterized by XRD, SEM, and EDS. The effect of Mn-Ce/γ-Al2O3on the storage and reduction of NOxover Pt-Ce-Ba/γ-Al2O3catalysts was studied in a fix-bed reactor with simulation gases NO, O2, and N2. The results indicated that NO oxidation to NO2was reduced with the increase of inlet NO concentration, which was up to 83% when the concentration of NO was 500 ppm but reduced to 76% with the concentration of NO increasing to 1000 ppm. Comparing with the Pt-Ce-Ba/γ-Al2O3catalysts, the rate of NOxstorage and reduction was remarkably increased over Pt-Ce-Ba/γ-Al2O3combined with Mn-Ce/γ-Al2O3catalysts. However, the reductant used for NOxreduction reaction over Pt-Ce-Ba/γ-Al2O3catalysts was consumed under the treatment of Mn-Ce/γ-Al2O3catalyst, which caused the NOxconversion to obviously drop, but the rate of NOxabsorption declined slightly.

2018 ◽  
Vol 85 (3) ◽  
pp. 647-656 ◽  
Author(s):  
Seyed Ali Hosseini ◽  
Behrouz Mehri ◽  
Aligholi Niaei ◽  
Behrang Izadkhah ◽  
Consuelo Alvarez-Galvan ◽  
...  

2000 ◽  
Vol 192 (1) ◽  
pp. 137-148 ◽  
Author(s):  
Masaaki Haneda ◽  
Yoshiaki Kintaichi ◽  
Hiromichi Shimada ◽  
Hideaki Hamada

2021 ◽  
Author(s):  
Pingyun Li ◽  
Haitao Ni ◽  
Shengxiang Jiang ◽  
Han Wang

Sol-gel method was conducted to prepare Ni12P5/N-doped carbon and amorphous Ni-P-C materials where heating treatments of the dried gel precursors were operated under N2 protecting atmosphere in a tube furnace....


2013 ◽  
Vol 37 ◽  
pp. 105-108 ◽  
Author(s):  
Jiahao Chen ◽  
Meiqing Shen ◽  
Xinquan Wang ◽  
Jun Wang ◽  
Yugeng Su ◽  
...  

2009 ◽  
Vol 130 (1-2) ◽  
pp. 235-238 ◽  
Author(s):  
Xin Zhang ◽  
Xiaogang Li ◽  
Junsheng Wu ◽  
Renchun Yang ◽  
Zhihua Zhang

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23348-23354 ◽  
Author(s):  
Yiqing Zeng ◽  
Shule Zhang ◽  
Yanan Wang ◽  
Guangli Liu ◽  
Qin Zhong

A series of well-reported Cex–Ti catalysts with a low content of Ce species were synthesized by a sol–gel method.


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