Novel approach for a cerium-based highly-efficient catalyst with excellent NH3-SCR performance

2014 ◽  
Vol 4 (10) ◽  
pp. 3611-3614 ◽  
Author(s):  
Haili Huang ◽  
Wenpo Shan ◽  
Shijian Yang ◽  
Jinhua Zhang
Keyword(s):  
Low Temperature ◽  
Catalytic Performance ◽  
Efficient Catalyst ◽  
Scr Catalyst ◽  
Highly Efficient ◽  
Nh3 Scr ◽  
Novel Approach ◽  
Operational Temperature ◽  
Temperature Window ◽  
Excellent Catalytic Performance

A highly-efficient NH3-SCR catalyst, CeO2/WO3–TiO2, was prepared by a novel stepwise precipitation approach. This catalyst showed excellent catalytic performance with superior low-temperature activity, high N2 selectivity and a broad operational temperature window.

scholarly journals The Effect of Tourmaline on SCR Denitrification Activity of MnOx/TiO2 at Low Temperature

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1020
Author(s):  
Yizhe Helian ◽  
Suping Cui ◽  
Xiaoyu Ma
Keyword(s):  
Low Temperature ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Highly Efficient ◽  
Nh3 Scr ◽  
Catalytic Material ◽  
Acidic Sites ◽  
Denitrification Activity ◽  
The Stability

Selective catalytic reduction (SCR) technology is the most widely used flue gas denitration technology at present. The stability of a catalyst is the main factor limiting the development of this technology. In this study, an environmentally friendly and highly efficient NH3-SCR catalyst was prepared by coprecipitation method from acidolysis residue of industrial waste and tourmaline. We found that the addition of tourmaline has an important impact on the denitration activity of the catalytic material. The NOx conversion exceeded 97% at 200 °C with the dosage of 10% tourmaline, which is about 7% higher than that without doping. The improvement of catalytic performance was mostly attributed to the permanent electrodes of tourmaline, which effectively promotes the dispersion of MnOx/TiO2 catalytic materials, increases the number of acidic sites and changes the valence distribution of manganese ions in products, which speeds up the diffusion of protons and ions, resulting in the acceleration of redox reaction. These as-developed tourmaline-modified MnOx/TiO2 materials have been demonstrated to be promising as a new type of highly efficient low-temperature NH3-SCR catalyst.

scholarly journals The synthesis of CuyMnzAl1−zOx mixed oxide as a low-temperature NH3-SCR catalyst with enhanced catalytic performance

2018 ◽  
Vol 47 (9) ◽  
pp. 2992-3004 ◽  
Author(s):  
Qinghua Yan ◽  
Sining Chen ◽  
Lei Qiu ◽  
Yanshan Gao ◽  
Dermot O'Hare ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Layered Double Hydroxides ◽  
Mixed Oxide ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Nh3 Scr ◽  
New Type ◽  
Double Hydroxides

A new type of low-temperature selective catalytic reduction (SCR) catalyst, CuyMnzAl1−zOx, derived from layered double hydroxides is presented in this contribution.

Synthesis and catalytic performance of Cu1Mn0.5Ti0.5O mixed oxide as low-temperature NH3-SCR catalyst with enhanced SO2 resistance

2018 ◽  
Vol 238 ◽  
pp. 236-247 ◽  
Author(s):  
Qinghua Yan ◽  
Sining Chen ◽  
Cheng Zhang ◽  
Qiang Wang ◽  
Benoit Louis
Keyword(s):  
Low Temperature ◽  
Mixed Oxide ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Nh3 Scr ◽  
So2 Resistance

Palladium supported on an amphiphilic porous organic polymer: a highly efficient catalyst for aminocarbonylation reactions in water

2017 ◽  
Vol 1 (8) ◽  
pp. 1541-1549 ◽  
Author(s):  
Yizhu Lei ◽  
Yali Wan ◽  
Guangxing Li ◽  
Xiao-Yu Zhou ◽  
Yanlong Gu ◽  
...  
Keyword(s):  
Palladium Catalyst ◽  
Catalytic Performance ◽  
Organic Polymer ◽  
Efficient Catalyst ◽  
Porous Organic Polymer ◽  
Highly Efficient ◽  
Supported Palladium Catalyst ◽  
Supported Palladium ◽  
Polymer Supported ◽  
Excellent Catalytic Performance

An amphiphilic porous organic polymer supported palladium catalyst was successfully prepared, showing excellent catalytic performance for aminocarbonylation reactions in water.

CeMn/TiO2 catalysts prepared by different methods for enhanced low-temperature NH3-SCR catalytic performance

2021 ◽  
pp. 116588
Author(s):  
Xianlong Zhang ◽  
Xincheng Zhang ◽  
Xiangjin Yang ◽  
Yazhong Chen ◽  
Xiaorui Hu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Catalytic Performance ◽  
Nh3 Scr

Low-temperature Shift DeNOx Activity of Nanoflake V2O5 loaded WO3/TiO2 as NH3-SCR Catalyst

2022 ◽  
pp. 109191
Author(s):  
Jae Gu Heo ◽  
Mahboob Ullah ◽  
Myoung-Pyo Chun ◽  
Yong Sik Chu ◽  
Seong Gwan Seo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Shift ◽  
Scr Catalyst ◽  
Nh3 Scr

scholarly journals Pd–Ni Bimetallic Nanoparticles Supported on Zro2 as an Efficient Catalyst for Suzuki–Miyaura Reactions

2018 ◽  
Vol 42 (8) ◽  
pp. 419-423
Author(s):  
Li-Jie Zhang ◽  
Xian Yao ◽  
Ying-xin Sun ◽  
Jia-wei Zhang ◽  
Chun Cai
Keyword(s):  
Reduction Method ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Excellent Catalytic Performance

Pd–Ni bimetallic nanoparticles (BMNPs) supported on ZrO2 were prepared by an impregnation–reduction method. The BMNPs showed excellent catalytic performance in Suzuki carbon–carbon cross-coupling reactions and almost quantitative conversion of the substrates was obtained under mild conditions in the absence of ligand. The excellent catalytic performance of the bimetallic catalyst could be a result of the synergistic effect between the two metal components. The catalyst showed outstanding recyclability during the reaction process; no obvious decrease in catalytic performance was observed after five cycles.

Synergistic effect of VOx and MnOx surface species for improved performance of V2O5/Ce0.5Ti0.5−xMnxO2−δ catalysts in low-temperature NH3-SCR of NO

2018 ◽  
Vol 8 (24) ◽  
pp. 6360-6374 ◽  
Author(s):  
Thanh Huyen Vuong ◽  
Stephan Bartling ◽  
Ursula Bentrup ◽  
Henrik Lund ◽  
Jabor Rabeah ◽  
...  
Keyword(s):  
Low Temperature ◽  
Synergistic Effect ◽  
Catalytic Performance ◽  
Surface Species ◽  
Nh3 Scr ◽  
Redox Couples ◽  
Scr Of No ◽  
Improved Performance

Inserting adjacent Mn3+/Mn2+ and VO3+/VO2+ redox couples in Ce1−xTixO2 improves catalytic performance.

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