Significantly enhanced low-temperature activity and SO2/H2O tolerance of Mn–Ce-O /TiO2 catalyst prepared by a facile citric acid assisted impregnation method DOI

Huiyuan Li,

Weihui Ren,

Hongyan Xue

et al.

Journal of Rare Earths, Journal Year: 2024, Volume and Issue: unknown

Published: April 1, 2024

Language: Английский

Promotional effects of phosphotungstic acid on the alkali metals poisoning resistance of MnOx catalyst for NH3-SCR DOI

Hongyan Xue,

Xiaoming Guo, Qiangsheng Guo

et al.

Fuel, Journal Year: 2025, Volume and Issue: 390, P. 134728 - 134728

Published: Feb. 18, 2025

Language: Английский

Citations

1
Activity Improvement of Mn/Al2O3 for NH3-SCR Reaction via the Rare-Earth (Ce, La, Nd and Y) Oxides Modification DOI
Yu Teng, Xiaoming Guo,

Hongyan Xue

et al.

Catalysis Letters, Journal Year: 2024, Volume and Issue: 154(7), P. 3645 - 3653

Published: Feb. 8, 2024

Language: Английский

Citations

3
Progress in Catalytic Strategies for Mitigating NOx/N2O Emissions: From Mechanisms to Applications DOI
Min Qian, Bin Guan, Zhongqi Zhuang

et al.

Catalysis Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In the context of global warming, emission greenhouse gas nitrous oxide (N 2 O) is an important factor limiting application ammonia fuels in marine and offshore power.

Language: Английский

Citations

0
Insights into the simultaneously enhanced activity, selectivity, and H2O resistance of cobalt modified MnCeOx/TiO2 catalyst for selective catalytic reduction of NOx with NH3 DOI

Gehua Li,

Hongyan Xue,

Jun Yu

et al.

Fuel, Journal Year: 2023, Volume and Issue: 354, P. 129416 - 129416

Published: Aug. 7, 2023

Language: Английский

Citations

8
Unraveling the poisoning effects of different K salts exerted on phosphotungstic acid-modified MnOx for NH3-SCR of NOx DOI

Hongyan Xue,

Xiaoming Guo, Dongsen Mao

et al.

Fuel, Journal Year: 2023, Volume and Issue: 360, P. 130603 - 130603

Published: Dec. 12, 2023

Language: Английский

Citations

8
Cu induced reconstruction of microporous structure of tungstophosphoric acid decorated popcarbon and the synergistic effects on NH3-SCR performance DOI

Zhaoyong Ren,

Xiaoyu Qiu, Bingquan Wang

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112428 - 112428

Published: March 8, 2024

Language: Английский

Citations

2
Less Is More: Selective-Atom-Removal-Derived Defective MnOx Catalyst for Efficient Propane Oxidation DOI Creative Commons

Wenfan Xu,

Limei Zhou,

Lining Liu

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(11), P. 907 - 907

Published: May 22, 2024

Defect manipulation in metal oxide is of great importance boosting catalytic performance for propane oxidation. Herein, a selective atom removal strategy was developed to construct defective manganese catalyst, which involved the partial etching Mg dopant MnOx. The resulting MgMnOx-H catalysts exhibited superior low-temperature activity (T50 = 185 °C, T90 226 °C) with conversion rate 0.29 μmol·gcat.−1·h−1 oxidation reaction, 4.8 times that pristine Meanwhile, robust hydrothermal stability guaranteed at 250 °C 30 h reaction time. comprehensive experimental characterizations revealed improvement closely related structures including abundant (metal and oxygen) vacancies, distorted crystals, valence imbalance, etc., prominently weakened Mn-O bond stimulated mobility surface lattice oxygen, leading elevation intrinsic activity. This work exemplifies significance defect engineering promotion ability oxide, will be valuable further development efficient non-noble

Language: Английский

Citations

2
Highly Efficient Oxidation of N, N-Dimethylformamide at Low Temperature over a Mn-based Catalyst by Optimization Support DOI
Daifei Ye, Min Ding,

Meixingzi Gao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 504, P. 158752 - 158752

Published: Dec. 20, 2024

Language: Английский

Citations

2
Effective formaldehyde elimination over pyrolusite-manganite hybrid catalysts promoted by Keggin acid decoration: Tungsten doping and chemically adsorbed active oxygen DOI
Jiayi Liu,

Dayong Zhang,

Hao Zhou

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112541 - 112541

Published: March 18, 2024

Language: Английский

Citations

1
Significant Effects of Adding Mode on Low-Temperature De-NOx Performance and SO2 Resistance of a MnCeTiOx Catalyst Prepared by the Co-Precipitation Method DOI Open Access
Xi Yang,

Hongyan Xue,

Lei Wang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(10), P. 690 - 690

Published: Oct. 4, 2024

Three MnCeTiOx catalysts with the same composition were prepared by conventional co-precipitation (MCT-C), reverse (MCT-R), and parallel (MCT-P), respectively, their low-temperature SCR performance for de-NOx was evaluated. The textural structural properties, surface acidity, redox capacity, reaction mechanism of investigated a series characterizations including N2 adsorption desorption, XRD, SEM, XPS, H2-TPR, NH3-TPD, NO-TPD, in situ DRIFTs. results revealed that most excellent catalytic achieved on MCT-R, more than 90% NOx conversion can be obtained at 100–300 °C under high GHSV 80,000 mL/(gcat·H). Furthermore, MCT-R possessed optimal tolerance to H2O SO2 poisoning. attributed its larger BET specific area; higher contents Mn4+, Ce3+, adsorbed oxygen species; capacity NH3 NO. Moreover, DRIFTs indicated NH3-SCR follows simultaneously Langmuir–Hinshelwood Eley–Rideal mechanisms 100 °C. By adjusting adding mode during process, activity simply conveniently, which is great practical value preparation catalyst denitrification.

Language: Английский

Citations

0