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Reduction of CeO

Elena Yu. KONYSHEVA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 249-261 doi: 10.1007/s11705-013-1333-6

Abstract: Reduction behavior of pure and doped CeO , the multi-phase La Sr CoO ? CeO , La Sr MnO ?The enhanced reduction of cerium oxide was observed initially at 800°C in all composites in spite ofDue to continuous reduction of cerium oxide in La Sr CoO ? CeO and La Sr MnO ?After 3 h exposure to H -Ar at 800°C the reduction of cerium oxides and perovskite phases in La Ni FeThe extent of cerium oxide involvement in the reduction process varies with time, and depends on its

Keywords： reduction of cerium oxide     composites     perovskites     catalyst under hydrogen containing atmosphere    

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Inhibition of bromate formation by reduced graphene oxide supported cerium dioxide during ozonation of

Bei Ye, Zhuo Chen, Xinzheng Li, Jianan Liu, Qianyuan Wu, Cheng Yang, Hongying Hu, Ronghe Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1170-z

Abstract: Our previous study found that graphene oxide (GO) can enhance the degradation efficiency of micropollutantsformation was attributed to increased hydroxyl radical production, as confirmed by the significant reductionCerium oxide (less than 5 mg/L) supported on reduced GO (xCeO2/RGO) significantly inhibited bromate formation

Keywords： Bromate     Catalytic ozonation     Graphene oxide     Cerium dioxide    

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Removal and recovery of toxic nanosized Cerium Oxide using eco-friendly Iron Oxide Nanoparticles

Kanha Gupta, Nitin Khandelwal, Gopala Krishna Darbha

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1194-4

Abstract: Increasing applications of metal oxide nanoparticles and their release in the natural environment isIn the present study, eco-friendly Iron Oxide Nanoparticles (IONPs) are synthesized using solvothermalThese IONPs were further utilized for the remediation of toxic metal oxide nanoparticle, i.e., CeO2.samples was>90% signifying that IONPs are candidate adsorbent for the removal and recovery of toxic metal oxide

Keywords： Adsorption     toxic metal oxide remediation     eco-friendly IONP     Iron oxide     CeO2 removal    

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Plasma-electrochemical synthesis of europium doped cerium oxide nanoparticles

Liangliang Lin, Xintong Ma, Sirui Li, Marly Wouters, Volker Hessel

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 501-510 doi: 10.1007/s11705-019-1810-7

Abstract: In the present study, a plasma-electrochemical method was demonstrated for the synthesis of europium doped ceria nanoparticles. Ce(NO ) ·6H O and Eu(NO ) ·5H O were used as the starting materials and being dissolved in the distilled water as the electrolyte solution. The plasma-liquid interaction process was investigated by an optical emission spectroscopy, and the obtained products were characterized by complementary analytical methods. Results showed that crystalline cubic CeO :Eu nanoparticles were successfully obtained, with a particle size in the range from 30 to 60 nm. The crystal structure didn’t change during the calcination at a temperature from 400°C to 1000°C, with the average crystallite size being estimated to be 52 nm at 1000°C. Eu ions were shown to be effectively and uniformly doped into the CeO lattices. As a result, the obtained nanophosphors emit apparent red color under the UV irradiation, which can be easily observed by naked eye. The photoluminescence spectrum further proves the downshift behavior of the obtained products, where characteristic D → F transitions of Eu ions had been detected. Due to the simple, flexible and environmental friendly process, this plasma-electrochemical method should have great potential for the synthesis of a series of nanophosphors, especially for bio-application purpose.

Keywords： plasma-electrochemical method     europium doped ceria     rare earth nanoparticles     photoluminescence    

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Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 207-220 doi: 10.1007/s11708-019-0628-9

Abstract: Photocatalytic reduction of carbon dioxide into solar fuels furnishes a gratifying solution to utilizeSo far, titanium oxide-based semiconductors have been the most prevalently adopted catalysts in carbonThis mini-review provides a general summary of the recent progresses in titanium oxide-catalyzed photocatalyticreduction of carbon dioxide.Lastly, it discusses multi-component hybrid titanium oxide composites.

Keywords： photocatalysis     carbon dioxide reduction     semiconductors     titanium oxide     renewable fuels    

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Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 228-232 doi: 10.1007/s11708-007-0031-9

Abstract: Pulverized coal-fired boilers are not nitrous oxide sources because of high temperature combustion.But selective non-catalytic reduction may produce NO by NO reduction reactions.
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Electrocatalytic reduction of NO to NH in ionic liquids by P-doped TiO nanotubes

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 726-734 doi: 10.1007/s11705-022-2274-8

Abstract: Designing advanced and cost-effective electrocatalytic system for nitric oxide (NO) reduction reactionNoteworthy, the obtained performance metrics are significantly larger than those for N2 reduction

Keywords： nitric oxide reduction reaction     electrcatalysis     ammonia production     phosphorus-doped titania    

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Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD, nitrogen, and phosphorus reduction

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1453-z

Abstract:

• ZnO-NP disrupted metabolic/catabolic balance of bacteria by affecting DHA activity.

Keywords： Granular sludge     Biotoxicity     Reactive oxygen species     Extracellular polymeric substances    

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Effects of support acidity on the reaction mechanisms of selective catalytic reduction of NO by CH

Shicheng XU, Junhua LI, Dong YANG, Jiming HAO

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 186-193 doi: 10.1007/s11783-009-0016-5

Abstract: The reaction mechanisms of selective catalytic reduction (SCR) of nitric oxide (NO) by methane (CH )The reaction involving NO moiety was likely to be determined by the step of reduction of NO.

Keywords： selective catalytic reduction (SCR)     nitric oxide (NO)     methane     support acidity     Br?    

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Halide-free carbonylation of methanol with H-MOR supported CuCeO

Chaoli Tong, Jiachang Zuo, Danlu Wen, Weikun Chen, Linmin Ye, Youzhu Yuan

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1075-1087 doi: 10.1007/s11705-020-2019-5

Abstract: H-MOR when CuCeO /H-MOR is calcined at 500 °C and these Cu species are converted into Cu sites upon reduction

Keywords： methanol carbonylation     halide-free     methyl acetate     H-mordenite     copper and cerium oxide    

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Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 861-866 doi: 10.1007/s11783-014-0742-1

Abstract: By tuning the electrochemical parameters, either Cu oxide nanowires or nanoneedles were fabricated andprovides a facile synthetic strategy for preparing Cu-based nanomaterials to achieve selective CO reduction

Keywords： electrochemical CO2 reduction     Cu oxide     nanostructure     selectivity     hydrocarbon formation    

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Multi-Objective Adaptive Optimization Model Predictive Control: Decreasing Carbon Emissions from a Zinc Oxide Article

Ke Wei, Keke Huang, Chunhua Yang, Weihua Gui

Engineering 2023, Volume 27, Issue 8,   Pages 96-105 doi: 10.1016/j.eng.2023.01.017

Abstract:

The zinc oxide rotary kiln, as an essential piece of equipment in the zinc smelting industrial processcollected from a CFD model, a sparse regression problem is first formulated and solved to obtain a reductionoptimization problem in real time, a suitable setting value is sent to the MPC layer to ensure that the zinc oxide

Keywords： Zinc oxide rotary kiln     Model reduction     Sparse identification     Real-time optimization     Model predictive    

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Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 354-357 doi: 10.1007/s11783-008-0059-z

Abstract: factors influencing the mineralization of dimethyl phthalate (DMP) during catalytic ozonation with a cerium-dopedIt showed that doping cerium significantly enhanced catalytic activity.Catalytic activity reached the maximum when 0.2% of ruthenium and 1.0% of cerium were simultaneously

Keywords： Ru–Ce/AlO     dimethyl phthalate     mineralization     comparison experiment     catalytic ozonation    

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Cuprous oxide/copper oxide interpenetrated into ordered mesoporous cellulose-based carbon aerogels for

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 918-929 doi: 10.1007/s11705-023-2305-0

Abstract: In this work, a cuprous oxide/copper oxide composite was interpenetrated onto carbon nanosheets of cellulose-basedThe introduction of the carbon aerogel effectively prevents the aggregation of the cuprous oxide/copperoxide composite.stronger charge transfer capacity, and lower recombination rate of photogenerated carriers than copper oxide

Keywords： carbon aerogel     photocatalysis     dye degradation     biomass     cuprous oxide/copper oxide    

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Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 82-92 doi: 10.1007/s11705-022-2181-z

Abstract: Herein, cerium doped nickel-based catalysts were synthesized and tested in a gas-phase amination of <>-Al2O3 catalyst is significantly improved by doping an appropriate amount of ceriumThe presence of cerium effectively inhibits the agglomeration of nickel particle, resulting in betterCerium doping also improves the reduction ability of nickel and enhances the interactions between NiMore weak acid sites were also found in those cerium doped catalysts, which promote another key step—ammonia

Keywords： amination     alcohol     cerium     nickel     acidity     interaction    

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Title Author Date Type Operation

Reduction of CeO

Elena Yu. KONYSHEVA

Journal Article

Inhibition of bromate formation by reduced graphene oxide supported cerium dioxide during ozonation of

Bei Ye, Zhuo Chen, Xinzheng Li, Jianan Liu, Qianyuan Wu, Cheng Yang, Hongying Hu, Ronghe Wang

Journal Article

Removal and recovery of toxic nanosized Cerium Oxide using eco-friendly Iron Oxide Nanoparticles

Kanha Gupta, Nitin Khandelwal, Gopala Krishna Darbha

Journal Article

Plasma-electrochemical synthesis of europium doped cerium oxide nanoparticles

Liangliang Lin, Xintong Ma, Sirui Li, Marly Wouters, Volker Hessel

Journal Article

Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Journal Article

Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Journal Article

Electrocatalytic reduction of NO to NH in ionic liquids by P-doped TiO nanotubes

Journal Article

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD, nitrogen, and phosphorus reduction

Journal Article

Effects of support acidity on the reaction mechanisms of selective catalytic reduction of NO by CH

Shicheng XU, Junhua LI, Dong YANG, Jiming HAO

Journal Article

Halide-free carbonylation of methanol with H-MOR supported CuCeO

Chaoli Tong, Jiachang Zuo, Danlu Wen, Weikun Chen, Linmin Ye, Youzhu Yuan

Journal Article

Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Journal Article

Multi-Objective Adaptive Optimization Model Predictive Control: Decreasing Carbon Emissions from a Zinc Oxide

Ke Wei, Keke Huang, Chunhua Yang, Weihua Gui

Journal Article

Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

Journal Article

Cuprous oxide/copper oxide interpenetrated into ordered mesoporous cellulose-based carbon aerogels for

Journal Article

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Journal Article