Direct Cu2+ ion-exchanged into as-synthesized SAPO-34 and its catalytic application in the selective catalytic reduction of NO with NH3

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12544-12552 ◽  
Author(s):  
Xiao Xiang ◽  
Miao Yang ◽  
Beibei Gao ◽  
Yuyan Qiao ◽  
Peng Tian ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
Catalytic Application

A facile and direct ion-exchange (DIE) method has been developed to prepare Cu-exchanged SAPO-34s, in which as-synthesized SAPO-34 is used as a precursor.

scholarly journals Influence of the nature and environment of manganese in Mn-BEA zeolites on NO conversion in selective catalytic reduction with ammonia

2017 ◽  
Vol 19 (21) ◽  
pp. 13553-13561 ◽  
Author(s):  
R. Baran ◽  
L. Valentin ◽  
J.-M. Krafft ◽  
T. Grzybek ◽  
P. Glatzel ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Synthesis Method ◽  
Reduction Of No ◽  
No Conversion ◽  
Post Synthesis

Manganese-containing BEA zeolites, MnxSiBEA (x = 1–4 wt%) and Mn(I.E.)AlBEA, were prepared by a two-step post-synthesis method and a conventional wet ion-exchange, respectively, and applied as catalysts in the selective catalytic reduction of NO with ammonia (NH3-SCR).

Cu/SAPO-34 prepared by a facile ball milling method for enhanced catalytic performance in the selective catalytic reduction of NOx with NH3

2019 ◽  
Vol 21 (39) ◽  
pp. 22113-22120 ◽  
Author(s):  
Huazhen Chang ◽  
Xuan Qin ◽  
Lei Ma ◽  
Tao Zhang ◽  
Junhua Li
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Selective Catalytic Reduction ◽  
Ball Milling ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Mechanical Mixing ◽  
Reduction Of No ◽  
Milling Method ◽  
Reduction Of Nox

Cu/SAPO-34 catalysts were prepared by different solid-state ion exchange methods, i.e., mechanical mixing (Cu/SAPO-34-M) and ball milling (Cu/SAPO-34-B), and were used for selective catalytic reduction of NOx with NH3 (NH3-SCR) reaction.

Effect of Fe on the Selective Catalytic Reduction of NO by NH3 at Low Temperature over Mn/CeO2-TiO2 Catalyst

2012 ◽  
Vol 27 (5) ◽  
pp. 495-500 ◽  
Author(s):  
Da-Wang WU ◽  
Qiu-Lin ZHANG ◽  
Tao LIN ◽  
Mao-Chu GONG ◽  
Yao-Qiang CHEN
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

The synergistic effects between Ce and Cu in CuyCe1−yW5Ox catalysts for enhanced NH3-SCR of NOx and SO2 tolerance

2019 ◽  
Vol 9 (3) ◽  
pp. 718-730 ◽  
Author(s):  
Jian-Wen Shi ◽  
Yao Wang ◽  
Ruibin Duan ◽  
Chen Gao ◽  
Baorui Wang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Synergistic Effects ◽  
Reduction Of No ◽  
Nh3 Scr ◽  
So2 Tolerance ◽  
Scr Of Nox

Non-manganese-based metal oxides are promising catalysts for the NH3-SCR (selective catalytic reduction) of NOx at low temperatures.

scholarly journals Selective catalytic reduction of NO with NH3 over Cu-exchanged CHA, GME, and AFX zeolites: a density functional theory study

2021 ◽  
Author(s):  
Pei Zhao ◽  
Bundet Boekfa ◽  
Ken-ichi Shimizu ◽  
Masaru Ogura ◽  
Masahiro Ehara
Keyword(s):  
Density Functional Theory ◽  
Selective Catalytic Reduction ◽  
Density Functional ◽  
Catalytic Reduction ◽  
Density Functional Theory Calculations ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Reduction Of No ◽  
Cage Size

Density functional theory calculations have been applied to study the selectivity caused by the cage size during the selective catalytic reduction of NO by NH3 over the Cu-exchanged zeolites with cha, gme, and aft cages.

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