Recent Progress on Low-Temperature Selective Catalytic Reduction of NOx with Ammonia DOI Creative Commons
Eun Duck Park

Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4506 - 4506

Published: Sept. 23, 2024

Selective catalytic reduction of nitrogen oxides (NOx) with ammonia (NH3-SCR) has been implemented in response to the regulation NOx emissions from stationary and mobile sources above 300 °C. However, development NH3-SCR catalysts active at low temperatures below 200 °C is still needed improve energy efficiency cope various fuels. In this review article, recent reports on low-temperature are systematically summarized. The redox property as well surface acidity two main factors that affect activity. strong beneficial for activity but responsible N2O formation. multiple electron transfer system more plausible controlling properties. H2O SOx, which often found flue gas, have a detrimental effect activity, especially temperatures. competitive adsorption can be minimized by enhancing hydrophobic catalyst. Various strategies resistance SOx poisoning also discussed.

Language: Английский

Numerical analysis for optimizing combustion strategy in an ammonia-diesel dual-fuel engine DOI
Jisoo Shin, Sungwook Park

Energy Conversion and Management, Journal Year: 2023, Volume and Issue: 284, P. 116980 - 116980

Published: April 3, 2023

Language: Английский

Citations

116

Hierarchical structured Ti-doped CeO2 stabilized CoMn2O4 for enhancing the low-temperature NH3-SCR performance within highly H2O and SO2 resistance DOI
Ning Luo, Fengyu Gao,

Hengheng Liu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123442 - 123442

Published: Oct. 31, 2023

Language: Английский

Citations

68

Recent advances in low-temperature NH3-SCR of NOx over Ce-based catalysts: Performance optimizations, reaction mechanisms and anti-poisoning countermeasures DOI
Kaiyue Zhang, Ning Luo, Zhuoshen Huang

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146889 - 146889

Published: Oct. 24, 2023

Language: Английский

Citations

60

Fe-Triggered Mn-mullite oxides for Efficient Low-Temperature Reduction of Nitrogen Oxides: Insights into the structure-activity relationship DOI
Jingyi Zhu, C. Q. Jin, Yonghua Duan

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125028 - 125028

Published: Jan. 1, 2025

Language: Английский

Citations

6

Interfacial confinement effect induced by pre-sulfurization for promoting SO2 tolerance of MnFe-TOS catalyst in low temperature NH3-SCR reaction DOI
Xiaosheng Huang, Ningjie Fang, Shilin Wu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123518 - 123518

Published: Nov. 17, 2023

Language: Английский

Citations

44

Photocatalytic NOx removal and recovery: progress, challenges and future perspectives DOI Creative Commons
Ting Xue,

Jing Li,

Lvcun Chen

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(24), P. 9026 - 9046

Published: Jan. 1, 2024

The excessive production of nitrogen oxides (NO x ) from energy production, agricultural activities, transportation, and other human activities remains a pressing issue in atmospheric environment management.

Language: Английский

Citations

15

Heterogeneous catalysis for the environment DOI
Jun Liu,

Rihana Burciaga,

S. Q. Tang

et al.

The Innovation Materials, Journal Year: 2024, Volume and Issue: unknown, P. 100090 - 100090

Published: Jan. 1, 2024

<p>Anthropogenic climate and environmental changes increasingly threaten the sustainability of life on Earth, hindering sustainable development human societies. These detrimental ecological are driven by activities that have elevated atmospheric levels greenhouse gases toxic substances, increased inorganic organic pollutants in water bodies, led to accumulation solid waste soils. Over next two three decades, impacts change, pollution, soil contamination expected intensify, posing increasing risks health global stability. Considering these trends, it is essential implement robust mitigation adaptation strategies. This paper analyzes pollution problems from perspectives atmospheric, water, contamination. It summarizes current research heterogeneous catalysis for treating gaseous, liquid, phases, with an emphasis key challenges applying catalytic conversion technologies cost-effective industrial settings. Finally, strategies mitigating via discussed material flow, energy data flow. aims offer scientific insights enhance future practice remediation.</p>

Language: Английский

Citations

11

Synthesis of N-doped CNT supported Cu-based oxides from CuMgAl-LDH as superior low temperature NH3-SCR catalysts DOI
Xianfeng Wu, Jiangning Liu, Xuezhen Liu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 361, P. 131493 - 131493

Published: Jan. 7, 2025

Language: Английский

Citations

2

Designer topological-single-atom catalysts with site-specific selectivity DOI Creative Commons

Weibin Chen,

Ming Bao, Fanqi Meng

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 10, 2025

Language: Английский

Citations

2

Unraveling the Complete Mechanism of the NH3-Selective Catalytic Reduction of NO over CeO2 DOI

Weibin Chen,

Shenzhen Xu

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(23), P. 15481 - 15492

Published: Nov. 16, 2023

CeO2-based oxides, with promising redox properties, exhibit application potential for the selective catalytic reduction (SCR) of nitrogen oxide (NOx) NH3 (NH3-SCR). Despite decades research, underlying mechanisms governing SCR activity remain unclear, and paths fast (Fast_SCR) standard (Std_SCR) on CeO2 surfaces are still under debate. Understanding complete reaction mechanism is crucial design synthesis efficient catalysts. We perform density functional theory (DFT) simulations, synthesize model catalysts in situ spectroscopy experiments (in drifts, Raman, NAP-XPS, EPR) evaluation to reveal NH3-SCR over CeO2. find that Std_SCR fast-SCR share same NO path but go through two different adsorbed-hydrogen (H*) removal processes. For reaction, dissociation NH2* H* catalyzed by coupled [O* + Ovac] species. The then combines generate NH2NO active intermediate, which further dissociates N2 H2O. In Fast_SCR process, NO2 reacts *NH3 H2O NH2NO. Std_SCR, species O* consumed removal. Our experimental–theoretical joint study provides principles based atomic-level understanding mechanisms.

Language: Английский

Citations

22