Enhancement of NOx adsorption performance on zeolite via a facile modification strategy

Liu, Yingshu; Wu, Xiaoyong; Yang, Xiong; Tao, Haiyang; Li, Jinjuan; Zhang, Chuanzhao; Yang, Ralph T.; Li, Ziyi

doi:10.1016/j.jhazmat.2022.130225

Cited by 11 publications

(5 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorption can be enhanced by the coordination interaction between Cu and N. Cu can be precisely dopped into H-ZSM-5 using an improved method called initial wetting impregnation microwave drying (IM). Compared with H-ZSM-5 and Na-ZSM-5, the desorption energy was reduced and the NO x adsorption was significantly increased [47]. By designing novel pore structures, such as three dimensionally-ordered (3DOM) microporous zeolites, the contact area can be obviously extended.…”

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

“…wetting impregnation microwave drying (IM). Compared with H-ZSM-5 and Na-ZSM-5, the desorption energy was reduced and the NOx adsorption was significantly increased [47]. By designing novel pore structures, such as three dimensionally-ordered (3DOM) microporous zeolites, the contact area can be obviously extended.…”

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

“…Given the complexity of the exhaust purification system in SCR, some researchers adopted an H2 selective catalytic reduction method using Pt/KFI molecular sieve catalysts from 150 °C to 250 °C, and the conversion rate of NOx reached 80% [50]. the desorption energy was reduced and the NOx adsorption was significantly increased [47]. By designing novel pore structures, such as three dimensionally-ordered (3DOM) microporous zeolites, the contact area can be obviously extended.…”

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

See 2 more Smart Citations

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Zhang,

Fang,

Huang

et al. 2023

Catalysts

View full text Add to dashboard Cite

Zeolites are porous materials with plentiful and adjustable pore structures, which are widely applied in various fields such as fossil fuel energy conversion, preparation of clean energy, chemical product conversion, CO2 capture, VOC treatment, and so on. Zeolites exhibited advantageous adsorption compared with traditional adsorbents such as activated carbon; in addition, they can also provide abundant reaction sites for various molecules. The chemical composition, structural acidity, and distribution of pore size can distinctly affect the efficiency of the reaction. The modification of zeolite structure, the development of novel and efficient preparation methods, as well as the improvement of reaction efficiency, have always been the focus of research for zeolites.

show abstract

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

Section: Selective Catalytic Reduction (Scr) Of No Xmentioning

confidence: 99%

See 1 more Smart Citation

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Zhang,

Fang,

Huang

et al. 2023

Catalysts

View full text Add to dashboard Cite

show abstract

“…In this process, the adsorbent retains its original shape and can be recycled, thereby reducing the cost of pollution control. 9 Carbon-based materials, as the most common adsorbents, have been widely developed and applied in the field of NO x control due to their large specific surface area and excellent characteristics such as size distribution, pore structure, and surface morphology. 10 However, it has been found that the physical and chemical properties of carbon materials still do not meet the ideal requirements so a series of methods have been employed to improve their performance.…”

Section: Introductionmentioning

confidence: 99%

“…Storing NO x from exhaust gas in the internal structure of an adsorbent and then reducing NO x to N 2 using catalytic reduction is a better treatment method. In this process, the adsorbent retains its original shape and can be recycled, thereby reducing the cost of pollution control . Carbon-based materials, as the most common adsorbents, have been widely developed and applied in the field of NO x control due to their large specific surface area and excellent characteristics such as size distribution, pore structure, and surface morphology .…”

Section: Introductionmentioning

confidence: 99%

Surface Effects of Trace CuMnCe Loading on Coal-Based Carbon Materials and Mechanisms of NO_x Adsorption and Removal

Han,

Shao,

Wang

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

This study employed the water-thermal coupled high-temperature CO2 gasification method using Zhundong coal as the raw material to prepare porous carbon materials. A dual-function catalyst for NO x adsorption and reduction was prepared by loading Cu, Mn, and Ce components onto the carbon material through hydrothermal impregnation. The influence of metal loading content on the pore structure, surface functional groups, and synergistic effects between metals in the carbon-based catalyst was investigated during the preparation process. In the process of NO x removal using carbon-based catalysts, the primary components comprise two distinct phases: NO x adsorption and CO-SCR experiments. The experimental sequence involves the initial execution of NO x adsorption tests, succeeded by subsequent reduction treatments. These processes are undertaken systematically to comprehensively investigate the attributes of the catalyst. The physical and chemical parameters of the samples were characterized using XRD, Raman, H2-TPR, NO x -TPD, and other techniques. Finally, the NO x adsorption and reduction mechanism of representative samples were deeply analyzed using in situ DRIFTS. The results showed that when the loading amounts of Cu, Mn, and Ce were 0.006, 0.012, and 0.003 g, respectively, the pore structure of the catalyst was excellent, with a NO x adsorption performance (q e) of 16.23 mg/g, and the NO conversion rate reached 66% at 200 °C. This is mainly attributed to the enhanced interaction between metal species on the catalyst surface by optimizing the metal content on the carbon support, which promotes the dissociation of NO in the NO + CO reaction. In situ DRIFTS results confirmed that NO and CO adsorb on the catalyst surface, and CO* reacts with NO* to produce N2 and CO2, following the Langmuir–Hinshelwood mechanism.

show abstract

Oxidative adsorption mechanism-based screening of zeolites for deep purification and recycling of NOx from humid gases

Tao,

Liu,

et al. 2023

Chemical Engineering Journal

View full text Add to dashboard Cite

Enhancement of NOx adsorption performance on zeolite via a facile modification strategy

Cited by 11 publications

References 57 publications

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Surface Effects of Trace CuMnCe Loading on Coal-Based Carbon Materials and Mechanisms of NO_x Adsorption and Removal

Oxidative adsorption mechanism-based screening of zeolites for deep purification and recycling of NOx from humid gases

Contact Info

Product

Resources

About

Enhancement of NOx adsorption performance on zeolite via a facile modification strategy

Cited by 11 publications

References 57 publications

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Surface Effects of Trace CuMnCe Loading on Coal-Based Carbon Materials and Mechanisms of NOx Adsorption and Removal

Oxidative adsorption mechanism-based screening of zeolites for deep purification and recycling of NOx from humid gases

Contact Info

Product

Resources

About

Surface Effects of Trace CuMnCe Loading on Coal-Based Carbon Materials and Mechanisms of NO_x Adsorption and Removal