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Promotion of transition metal oxides on the NH

Weiman Li, Haidi Liu, Yunfa Chen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0914-x

Abstract: Manganese and chromium oxides promote the NH -SCR activity of Zr-Ce mixed oxide.Cr-Zr-Ce mixed oxide exhibited>80% NO conversion at a wide temperature window.Cr-Zr-Ce and Mn-Zr-Ce catalysts are much more active than ZrO -CeO binary oxide for the low temperatureMn-Zr-Ce catalyst exhibited high tolerance to SO and H O.Cr-Zr-Ce mixed oxide exhibited>80% NO conversion at a wide temperature window of 100°C–300°C.

Keywords： NH3-selective catalytic reduction     NOx     Low temperature     Cr-Zr-Ce    

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An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 950-962 doi: 10.1007/s11705-022-2162-2

Abstract: A series of Cu–Ce–Zr catalysts with different Ce contents are applied to the hydrogenation of COThe Cu–Ce–Zr catalyst with 2 wt% Ce loading shows higher CO selectivity (SCO = 0.0%–87.8%) from 200–300 °C, while the Cu–Ce–Zr catalyst with 8 wt% Ce loading presents higher CO2Ce–Zr catalyst with 8 wt% Ce loading favors CH3OH selectivity and CO2 activation, while CO is preferred on the Cu–Ce–Zr catalyst with 2 wt% Ce loading, a smaller number

Keywords： CO2 hydrogenation     Cu–Ce–Zr     hydroxyls     CO/CH3OH selectivity    

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PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1369-z

Abstract:

• Pt/CZL exhibits the optimum catalytic performance for HC and NOx elimination.

Keywords： Precious metal-loaded (Ce     Zr     La)O2 catalysts     Oxygen mobility     Catalytic performance    

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Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11684-022-1565-0

Abstract:

● Cu addition enhances CH3OH oxidation and alleviates its inhibitory effect on SCR.

Keywords： Copper modification     Sb-CeZr2Ox catalyst     NOx     Methanol     Simultaneous removal    

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Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide oxidation

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1524-1536 doi: 10.1007/s11705-021-2106-2

Abstract: The effects of Zr doping on the existence of Cu and the catalytic performance of Ce0.7−xZrxCu0.3O2 for CO oxidation were investigated.The characterization results showed that all samples have a cubic structure, and a small amount of Zrdoping facilitates Cu2+ ions entering the CeO2 lattice, but excessive Zr dopingnumber of oxygen vacancies caused by the Cu2+ entering the lattice (e.g., Cu2+–□–Ce

Keywords： Ce–Zr–Cu–O     CO oxidation     reducible copper species     oxygen vacancy     cooperative effect    

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Preparation of ceria-zirconia solid solution with enhanced oxygen storage capacity and redox performance

Lijing MENG, Licheng LIU, Xuehong ZI, Hongxing DAI, Hong HE, Zhen ZHAO, Xinping WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 164-171 doi: 10.1007/s11783-010-0019-2

Abstract: A series of ceria-zirconia solid solutions with different Ce/Zr molar ratios were prepared by the UAMRThe UAMR method proved to be superior, especially when the Ce/Zr molar ratio was lower than 1, in fabricating

Keywords： membrane reaction     ceria-zirconia     Ce/Zr molar ratio     solid solution     hydrogen temperature-programmed reduction    

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Promoting effect of Zr on the catalytic combustion of methane over Pd/γ-Al

Hongbo NA,Tianle ZHU,Zhiming LIU,Yifei SUN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 659-665 doi: 10.1007/s11783-013-0613-1

Abstract: The effect of Zr on the catalytic performance of Pd/γ-Al O for the methane combustion was investigatedThe results show that the addition of Zr can improve the activity and stability of Pd/γ-Al O catalystadsorption, XRD, CO-Chemisorption, XPS, CH -TPR and O -TPO), is ascribed to the interaction between Pd and ZrZr addition inhibits Pd aggregation and enhances the redox properties of active phase Pd / Pd .

Keywords： Pd-Zr/Al2O3     methane     catalytic combustion     catalyst regeneration    

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Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 503-509 doi: 10.1007/s11783-013-0540-1

Abstract: A mathematical model for the transport of Ce(IV) from hydrochloric acid solutions through dispersionIn this work, the system is considered to be in a transient state, and chemical reaction between Ce(IVThe experimental and simulated Ce(IV) extractions showed similar tendencies for a high Ce(IV) concentrationand acidity case.The model results indicate that high initial Ce(IV) concentrations and acidity bothhave detrimental effects on Ce(IV) extraction and stripping.

Keywords： membrane (DFCLM)     dispersion phase     feed phase     2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester     Ce    

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Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 656-666 doi: 10.1007/s11708-021-0765-9

Abstract: In recent years, defect-engineered Zr-based UiO-66 metal-organic frameworks (UiO-66(Zr) metal-organicsynthesis methods, characterization technologies, and application fields of defect-engineered UiO-66(Zr) MOFs materials in order to provide new insights to synthesize high-performance UiO-66(Zr) MOFs materialsand promote the development of UiO-66(Zr) in various fields.

Keywords： defect engineering     metal-organic frameworks     UiO-66     photocatalysis    

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Selective targeted adsorption and inactivation of antibiotic-resistant bacteria by Cr-loaded mixed metal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1502-7

Abstract:

• LDHs and MMOs was synthesized by ultrasound-assisted one-step co-precipitation.

Keywords： Heavy metal adsorption     Magnetic hydrotalcite     ARBs removal     Cr(VI)-MMOs combined antibacterial activity    

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Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 125-125 doi: 10.1007/s11705-012-1291-4

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The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 454-464 doi: 10.1007/s11705-014-1456-4

Abstract: However, there is little data on the biosorption mechanism of Cr(VI) by dried biomass.So the bio-removal of Cr(VI) ions from aqueous solutions was investigated using dried biomass from aThe biosorption process was found to be highly pH dependent and the optimum pH for the adsorption of Cr

Keywords： Cr(VI)     biomass     Bacillus cereus Pf-1     biosorption capacity     biosorbents    

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Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1106-7

Abstract:

PFRs were produced on biochar during Cr(VI) decontamination.

PFRs formation on biochar was owing to the oxidization of phenolic-OH by Crlistitem>

Biochar charred at high temperature possessed great performance to Cr

Keywords： Biochar     Persistent free radicals     Phenolic hydroxyl groups     Cr(VI) reduction    

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Hyperbranched magnetic polymer: highly efficient removal of Cr(VI) and application in electroplating

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1568-1580 doi: 10.1007/s11705-023-2303-2

Abstract: polymer (TTCA/THT@Fe3O4) was synthesized to achieve the efficient removal of Cradsorption conditions, the maximum adsorption capacity of TTCA/THT@Fe3O4 for Crthe removal efficiency can approach 98.9%, even at the lower concentration of 20 mg∙L‒1 CrFor actual wastewater containing Cr(VI), the Cr(VI) concentration was reduced from 25.8 to 0.4 mg∙LCr/N and Cr/S coordination bonds.

Keywords： magnetic polymer     chromium removal     hydrogen bonding     recyclability     actual wastewater    

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Enhancement of extracellular Cr(VI) reduction for anammox recovery using hydrazine: performance, pathways

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1715-z

Abstract: ItemContent>

● N2H4 addition enhanced and recovered anammox performance under Cr

Keywords： Extracellular Cr(VI) reduction     Electron transfer     Anammox     Hydrazine     Cr(VI) inhibition    

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Title Author Date Type Operation

Promotion of transition metal oxides on the NH

Weiman Li, Haidi Liu, Yunfa Chen

Journal Article

An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Journal Article

PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Journal Article

Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Journal Article

Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide oxidation

Journal Article

Preparation of ceria-zirconia solid solution with enhanced oxygen storage capacity and redox performance

Lijing MENG, Licheng LIU, Xuehong ZI, Hongxing DAI, Hong HE, Zhen ZHAO, Xinping WANG,

Journal Article

Promoting effect of Zr on the catalytic combustion of methane over Pd/γ-Al

Hongbo NA,Tianle ZHU,Zhiming LIU,Yifei SUN

Journal Article

Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Journal Article

Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Journal Article

Selective targeted adsorption and inactivation of antibiotic-resistant bacteria by Cr-loaded mixed metal

Journal Article

Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

Journal Article

The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Journal Article

Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

Journal Article

Hyperbranched magnetic polymer: highly efficient removal of Cr(VI) and application in electroplating

Journal Article

Enhancement of extracellular Cr(VI) reduction for anammox recovery using hydrazine: performance, pathways

Journal Article