4.7 Article

Promotional role of Nb modification on CuCeOx catalyst for low temperature selective catalytic reduction of NO with NH3: A mechanism investigation

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Physical

Recent progress of low-temperature selective catalytic reduction of NOx with NH3 over manganese oxide-based catalysts

Rui-tang Guo et al.

Summary: This review introduces the application of novel manganese oxide-based catalysts in the selective catalytic reduction with NH3 (NH3-SCR) reaction. By optimizing the preparation methods and constructing multiple active centers and sacrificial sites, the performance of the catalysts can be improved. The reaction mechanisms of manganese oxide-based catalysts are also summarized, and future research directions are proposed.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Article Chemistry, Physical

Copper Single Atom-Triggered Niobia-Ceria Catalyst for Efficient Low-Temperature Reduction of Nitrogen Oxides

Shaohua Xie et al.

Summary: In this study, an efficient NbCuCe oxide catalyst for reducing NOx emissions in cold-start diesel engines is reported. The catalyst exhibits higher DeNO(x) activity below 200 degrees C compared to the Cu-CHA zeolite catalyst, along with superior sulfur resistance, faster response, and lower NH3 slip. Atomically dispersed Cu species facilitate strong interaction between Cu and the Nb/Ce base catalyst, leading to improved low-temperature redox properties and NH3 adsorption/activation. The developed NbCuCe catalyst shows promising potential for efficient DeNO(x) in cold-start diesel engines and can be combined with Cu-CHA for a broader temperature range of operation.

ACS CATALYSIS (2022)

Article Engineering, Chemical

Insight into the promotional mechanism of Cu modification towards wide-temperature NH3-SCR performance of NbCe catalyst

Dongqi An et al.

Summary: A simple Cu modification strategy was proposed to broaden the operation temperature window of NbCe catalyst. The study revealed that Cu modification significantly enhanced the activity and resistance of the catalyst, improving the efficiency of the NH3-SCR reaction through enhanced redox behavior and additional adsorption and activation sites.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2022)

Article Energy & Fuels

Improved NH3-SCR deNOx activity and tolerance to H2O & SO2 at low temperature over the NbmCu0.1-mCe0.9Ox catalysts: Role of acidity by niobium doping

Zhiping Zhang et al.

Summary: A series of NbmCu0.1-mCe0.9Ox catalysts were synthesized using the citric acid method, and the effect of niobium doping on the catalysts was investigated through various characterization techniques. The results showed that the introduction of niobium enhanced the acidity of the catalysts, leading to superior deNOx performance at low temperatures. Additionally, in situ DRIFTS results were utilized to study the reaction process in detail.
Article Green & Sustainable Science & Technology

Thulium modified MnOx/TiO2 catalyst for the low-temperature selective catalytic reduction of NO with ammonia

Cihang Niu et al.

Summary: A new Tm-modified Mn/TiO2 catalyst was developed for low temperature NO removal, showing significantly improved SCR de-NOx performance with NH3 as reducing agent. Introduction of appropriate Tm content enhanced the surface properties and reactivity of the catalyst, leading to enhanced de-NOx capabilities.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Chemistry, Physical

The enhanced K resistance of Cu-SSZ-13 catalyst for NH3-SCR reaction by the modification with Ce

De-yu Guo et al.

Summary: The modification of Cu-SSZ-13 catalysts with Ce enhances resistance to K deactivation and improves SCR performance, mainly due to the synergistic effect between Ce and Cu.

MOLECULAR CATALYSIS (2021)

Article Engineering, Environmental

Getting insight into the effect of CuO on red mud for the selective catalytic reduction of NO by NH3

Lei Qi et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Article Engineering, Environmental

The role of the Cu dopant on a Mn3O4 spinel SCR catalyst: Improvement of low-temperature activity and sulfur resistance

Shangchao Xiong et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Engineering, Environmental

Promotional role of Mo on Ce0.3FeOx catalyst towards enhanced NH3-SCR catalytic performance and SO2 resistance

Xiaolong Tang et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Environmental Sciences

Enhancement of the activity of Cu/TiO2 catalyst by Eu modification for selective catalytic reduction of NOx with NH3

Yuan-zhen Liu et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020)

Article Engineering, Environmental

Reaction mechanism for NH3-SCR of NOx over CuMn2O4 catalyst

Yingju Yang et al.

CHEMICAL ENGINEERING JOURNAL (2019)

Article Chemistry, Physical

Cavity size dependent SO2 resistance for NH3-SCR of hollow structured CeO2-TiO2 catalysts

Kaili Ma et al.

CATALYSIS COMMUNICATIONS (2019)

Article Chemistry, Physical

TRA and DRIFTS studies of the fast SCR reaction over CeO2/TiO2 catalyst at low temperatures

Li Cao et al.

APPLIED CATALYSIS A-GENERAL (2018)

Article Chemistry, Physical

Enhancement of the NH3-SCR catalytic activity of MnTiOx catalyst by the introduction of Sb

Rui-tang Guo et al.

APPLIED CATALYSIS A-GENERAL (2018)

Article Chemistry, Physical

The promoted performance of CeO2 catalyst for NH3-SCR reaction by NH3 treatment

Xiao Sun et al.

APPLIED SURFACE SCIENCE (2018)

Article Chemistry, Physical

The enhanced SCR performance of Mn/TiO2 catalyst by Mo modification: Identification of the promotion mechanism

Xiao Sun et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Engineering, Chemical

The enhancement of Zn resistance of Mn/TiO2 catalyst for NH3-SCR reaction by the modification with Al2(SO4)3

Shu-ming Liu et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2017)

Article Engineering, Environmental

Highly dispersed surface active species of Mn/Ce/TiW catalysts for high performance at low temperature NH3-SCR

Hongfeng Chen et al.

CHEMICAL ENGINEERING JOURNAL (2017)

Article Engineering, Environmental

The protection of CeO2 thin film on Cu-SAPO-18 catalyst for highly stable catalytic NH3-SCR performance

Yongheng Li et al.

CHEMICAL ENGINEERING JOURNAL (2017)

Article Engineering, Environmental

V2O5-decorated Mn-Fe/attapulgite catalyst with high SO2 tolerance for SCR of NOx with NH3 at low temperature

Xingmeng Zhou et al.

CHEMICAL ENGINEERING JOURNAL (2017)

Article Chemistry, Physical

The deactivation of Ce/TiO2 catalyst for NH3-SCR reaction by alkali metals: TPD and DRIFT studies

Shu-xian Wang et al.

CATALYSIS COMMUNICATIONS (2017)

Article Chemistry, Physical

A novel Ce-Ta mixed oxide catalyst for the selective catalytic reduction of NOx with NH3

Tao Zhang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2015)

Article Chemistry, Physical

Deactivation and regeneration of a commercial SCR catalyst: Comparison with alkali metals and arsenic

Yue Peng et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2015)

Article Chemistry, Physical

Impacts of niobia loading on active sites and surface acidity in NbOx/CeO2-ZrO2 NH3-SCR catalysts

Ziran Ma et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2015)

Article Nanoscience & Nanotechnology

DRIFT Study of CuO-CeO2-TiO2 Mixed Oxides for NOx Reduction with NH3 at Low Temperatures

Lei Chen et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

Article Chemistry, Multidisciplinary

Effect of Cu doping on the SCR activity of CeO2 catalyst prepared by citric acid method

Rui-tang Guo et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2014)

Article Chemistry, Physical

The co-effect of Sb and Nb on the SCR performance of the V2O5/TiO2 catalyst

Xuesen Du et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2012)