Resource Type

Journal Article 198

Conference Videos 1

Year

2023 24

2022 43

2021 23

2020 14

2019 8

2018 10

2017 10

2016 9

2015 5

2014 4

2013 4

2012 7

2011 5

2010 3

2009 5

2008 8

2007 8

2002 1

2001 1

2000 1

open ︾

Keywords

nitrogen 12

Nitrogen removal 7

Nitrogen 4

Carbon source 3

Constructed wetland 3

eutrophication 3

manganese oxides 3

Adsorption 2

Anammox 2

Complete ammonia oxidizing (comammox) bacteria 2

Dissolved organic nitrogen 2

Feammox 2

Wastewater treatment 2

adsorption 2

biofilm 2

harvest index 2

nitrogen deposition 2

nitrogen management 2

nitrogen removal 2

open ︾

Search scope:

排序： Display mode:

Selective catalytic reduction of NO

Pavlo I. Kyriienko

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 471-491 doi: 10.1007/s11705-019-1847-7

Abstract: silver-alumina catalysts demonstrate the perspectives of their application for reducing the level of nitrogenoxides in engine emissions, including in the presence of water vapor and sulfur oxides.

Keywords： SCR     nitrogen oxides     silver-alumina catalyst     silver species     ethanol     oxygenates    

HTML PDF Collect

Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity and reducibility

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1447-x

Abstract:

• The optimum SCR activity was realized by tuning the acid pretreatment.

Keywords： Air pollution control     Nitrogen oxides     Selective catalytic reduction     Red mud     Solid waste utilization    

HTML PDF Collect

4 on HZSM-5 support: designing applicable catalysts for selective catalytic reduction of nitrogenoxides by ammonia

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: sub>/ZSM-5 catalysts with different loadings have been prepared for selective catalytic reduction of nitrogenoxides by ammonia.kinds of active sites, hence promoting the performance of ammonia selective catalytic reduction of nitrogen

Keywords： Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersion threshold effect     surface acid sites     surface active O2– anions    

HTML PDF Collect

Catalytic combustion of volatile organic compounds using perovskite oxides catalysts—a review

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1649-1676 doi: 10.1007/s11705-023-2324-x

Abstract: Next, the characteristics and catalytic performance of perovskite oxides as catalysts for VOC removalThe challenges and the prospects regarding the design of perovskite oxides catalysts for the catalytic

Keywords： perovskite oxides     volatile organic compounds     catalytic combustion     reaction mechanism    

HTML PDF Collect

Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 98-105 doi: 10.1007/s11708-012-0171-4

Abstract: result of the heavy reliance on coal for electricity generation, emissions of air pollutants, such as nitrogenoxides (NO ), are increasing.

Keywords： nitrogen oxides (NOx)     coal     selective catalytic reduction (SCR)     air pollution    

HTML PDF Collect

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 840-851 doi: 10.1007/s11708-021-0797-1

Abstract: Sorption selective catalytic reduction of nitrogen oxides (NOx) (sorption-SCR) has

Keywords： selective catalytic reduction (SCR)     nitrogen oxides (NOx)     ammonia     composite sorbent    

HTML PDF Collect

Multivalent manganese oxides with high electrocatalytic activity for oxygen reduction reaction

Xiangfeng Peng, Zhenhai Wang, Zhao Wang, Yunxiang Pan

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 790-797 doi: 10.1007/s11705-018-1706-y

Abstract: A noble-metal-free catalyst based on both Mn O and MnO was prepared by using the dielectric barrier discharge technique at moderate temperature. The prepared catalyst shows a higher electrocatalytic activity towards the oxygen reduction reaction than the catalyst prepared by using the traditional calcination process. The enhanced activity could be due to the coexistence of manganese ions with different valences, the higher oxygen adsorption capacity, and the suppressed aggregation of the catalyst nanoparticles at moderate temperature. The present work would open a new way to prepare low-cost and noble-metal-free catalysts at moderate temperature for more efficient electrocatalysis.

Keywords： oxygen reduction reaction     manganese oxides     mixed valences of manganese     oxygen adsorption     dielectric barrier    

HTML PDF Collect

Redox reactions of iron and manganese oxides in complex systems

Jianzhi Huang, Huichun Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1255-8

Abstract: • Mechanisms of redox reactions of Fe- and Mn-oxides were discussed. • Oxidative reactions of Mn- andFe-oxides in complex systems were reviewed. • Reductive reaction of Fe(II)/iron oxides in complex systemsConspectus Redox reactions of Fe- and Mn-oxides play important roles in the fate and transformationreductive reactivity of Fe(II)/iron oxides in complex model systems toward contaminant degradation.such as Al, Si and Ti oxides on the redox reactivity of the systems are briefly summarized.

Keywords： Iron oxides     manganese oxides     reduction     oxidation     complex systems     reaction kinetics and mechanisms    

HTML PDF Collect

Coordinated Control of Fine-Particle and Ozone Pollution by the Substantial Reduction of Nitrogen Oxides Views & Comments

Biwu Chu, Yan Ding, Xiang Gao, Junhua Li, Tingyu Zhu, Yunbo Yu, Hong He

Engineering 2022, Volume 15, Issue 8,   Pages 13-16 doi: 10.1016/j.eng.2021.09.006

HTML PDF Collect

The role of manganese oxides in the activation of peroxymonosulfate (PMS)

Jianzhi Huang, Huichun Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1158-8

Abstract: Manganese oxides (MnOx) have been demonstrated to be effective materials to activate Oxone (i.e., PMS

Keywords： Peroxymonosulfate     Manganese oxides     Catalyst     Oxidant    

HTML PDF Collect

Review on research and application of mesoporous transitional metal oxides in water treatment

Minghao SUI, Lei SHE

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 795-802 doi: 10.1007/s11783-013-0521-4

Abstract: This paper reviews the application of mesoporous transitional metal oxides in water treatment on basisMesoporous transitional metal oxides are characterized by their intrinsic features, such as a high surface

Keywords： mesoporous materials     transitional metal oxides     catalysis     adsorption     water treatment    

HTML PDF Collect

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: The one-step highly selective oxidation of cyclohexane into cyclohexanone and cyclohexanol as the essential intermediates of nylon-6 and nylon-66 is considerably challenging. Therefore, an efficient and low-cost catalyst must be urgently developed to improve the efficiency of this process. In this study, a Co3O4–CeO2 composite oxide catalyst was successfully prepared through ultrasound-assisted co-precipitation. This catalyst exhibited a higher selectivity to KA-oil, which was benefited from the synergistic effects between Co3+/Co2+ and Ce4+/Ce3+ redox pairs, than bulk CeO2 and/or Co3O4. Under the optimum reaction conditions, 89.6% selectivity to KA-oil with a cyclohexane conversion of 5.8% was achieved over Co3O4–CeO2. Its catalytic performance remained unchanged after five runs. Using the synergistic effects between the redox pairs of different transition metals, this study provides a feasible strategy to design high-performance catalysts for the selective oxidation of alkanes.

Keywords： Co3O4–CeO2 composite oxides     cyclohexanone     cyclohexanol     ultrasonic-assisted    

HTML PDF Collect

Fluoride ions adsorption from water by CaCO enhanced Mn–Fe mixed metal oxides

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 236-248 doi: 10.1007/s11705-022-2193-8

Abstract: Novel CaCO3-enhanced Mn–Fe mixed metal oxides (CMFC) were successfully prepared for the firstThese oxides were then employed as an adsorbent for adsorptive removal of excess fluoride ions.

Keywords： mesoporous materials     metal oxides     fluoride ion     adsorption mechanism    

HTML PDF Collect

Application of metal oxides-based nanofluids in PV/T systems: a review

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 397-428 doi: 10.1007/s11708-021-0758-8

Abstract: Having the wide application of metal oxides in energy technologies, in recent years, many researchersThis paper summarizes recent research activities on various metal oxides (Al2O3

Keywords： metal oxide     nanofluids (NFs)     nanoparticles (NPs)     optical filter     PV/T systems     solar energy    

HTML PDF Collect

Crystalline mesoporous transition metal oxides: hard-templating synthesis and application in environmental

Zhen MA, Bei ZHOU, Yu REN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 341-355 doi: 10.1007/s11783-012-0472-1

Abstract: Although mesoporous metal oxides have lower surface areas compared to mesoporous silicas, they generallyMesoporous metal oxides can be synthesized via a soft-templating or hard-templating approach, and theseIn this review, we summarize the synthesis of mesoporous transition metal oxides using mesoporous silicas

Keywords： mesoporous materials     silica     metal oxide     hard-templating     environmental catalysis    

HTML PDF Collect

Title Author Date Type Operation

Selective catalytic reduction of NO

Pavlo I. Kyriienko

Journal Article

Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity and reducibility

Journal Article

4 on HZSM-5 support: designing applicable catalysts for selective catalytic reduction of nitrogenoxides by ammonia

Journal Article

Catalytic combustion of volatile organic compounds using perovskite oxides catalysts—a review

Journal Article

Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Journal Article

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Journal Article

Multivalent manganese oxides with high electrocatalytic activity for oxygen reduction reaction

Xiangfeng Peng, Zhenhai Wang, Zhao Wang, Yunxiang Pan

Journal Article

Redox reactions of iron and manganese oxides in complex systems

Jianzhi Huang, Huichun Zhang

Journal Article

Coordinated Control of Fine-Particle and Ozone Pollution by the Substantial Reduction of Nitrogen Oxides

Biwu Chu, Yan Ding, Xiang Gao, Junhua Li, Tingyu Zhu, Yunbo Yu, Hong He

Journal Article

The role of manganese oxides in the activation of peroxymonosulfate (PMS)

Jianzhi Huang, Huichun Zhang

Journal Article

Review on research and application of mesoporous transitional metal oxides in water treatment

Minghao SUI, Lei SHE

Journal Article

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Journal Article

Fluoride ions adsorption from water by CaCO enhanced Mn–Fe mixed metal oxides

Journal Article

Application of metal oxides-based nanofluids in PV/T systems: a review

Journal Article

Crystalline mesoporous transition metal oxides: hard-templating synthesis and application in environmental

Zhen MA, Bei ZHOU, Yu REN

Journal Article