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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: In this study, a Co3O4–CeO2 composite oxide catalyst was successfullyselectivity to KA-oil, which was benefited from the synergistic effects between Co3+/Co2+ and Ce4+/Ce3+ redox pairs, than bulk CeO2 and/or Co33O4–CeO2.

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

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Al2O3 and CeO2-promoted MgO sorbents for CO2 capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderateThe CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO .The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimalMoreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in theCompared to Al O , CeO is more effective for promoting the CO capacity of MgO.

Keywords： CO2 capture     MgO sorbents     Al2O3     CeO2     flue gas    

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Interface engineering for enhancing electrocatalytic oxygen evolution reaction of CoS/CeO heterostructures

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 376-383 doi: 10.1007/s11705-021-2062-x

Abstract: In this communication, a novel bijunction CoS/CeO2 electrocatalyst grown on carbon cloth isThe interface engineering of CoS and CeO2 facilitates a rapid charge transfer from CeO2 to CoS./sup> and low Tafel slope of 76.2 mV∙dec–1, and is superior to that of CoS (372 mV) and CeO2 (530 mV) counterparts.

Keywords： interface engineering     CoS/CeO2     electrodeposition     electrocatalyst     oxygen evolution reaction    

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CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1539-2

Abstract:

• CeO2 doping significantly improved low-temperature NH

Keywords： NH3-SCR     CeO2 doping     Low-temperature NOx removal     Improved redox    

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Metal-organic framework loaded manganese oxides as efficient catalysts for low-temperature selective

Minhua Zhang, Baojuan Huang, Haoxi Jiang, Yifei Chen

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 594-602 doi: 10.1007/s11705-017-1668-5

Abstract: A mild deposition method was used to fabricate Mn-based catalysts on a UiO-66 carrier for the selective catalytic reduction of NO by NH (NH -SCR). The catalyst with 8.5 wt-% MnO loading had the highest catalytic activity for NH -SCR with a wide temperature window (100–290 °C) for 90% NO conversion. Characterization of the prepared MnO /UiO-66 catalysts showed that the catalysts had the crystal structure and porosity of the UiO-66 carrier and that the manganese particles were well-distributed on the surface of the catalyst. X-ray photoelectron spectroscopy analysis showed that there are strong interactions between the MnO and the Zr oxide secondary building units of the UiO-66 which has a positive effect on the catalytic activity. The 8.5 wt-% MnO catalyst maintained excellent activity during a 24-h stability test and exhibited good resistance to SO poisoning.

Keywords： metal-organic framework     selective catalytic reduction     manganese oxides     deNOx     SO2 resistance    

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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    

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Controlling the Reconstruction of Ni/CeO2 Catalyst during Reduction for Enhanced CO Methanation Article

Xinyu Cao,Tiancheng Pu,Bar Mosevitzky Lis,Israel E. Wachs,Chong Peng,Minghui Zhu,Yongkang Hu,

Engineering 2022, Volume 14, Issue 7,   Pages 94-99 doi: 10.1016/j.eng.2021.08.023

Abstract:

Reductive pretreatment is an important step for activating supported metal catalysts but has received little attention. In this study, reconstruction of the supported nickel catalyst was found to be sensitive to pretreatment conditions. In contrast to the traditional activation procedure in hydrogen, activating the catalyst in syngas created supported Ni nanoparticles with a polycrystalline structure containing an abundance of grain boundaries. The unique post-activation catalyst structure offered enhanced CO adsorption and an improved CO methanation rate. The current strategy to tune the catalyst structure via manipulating the activation conditions can potentially guide the rational design of other supported metal catalysts.

Keywords： Nickel–ceria catalyst     Catalyst activation     Crystallinity     Methanation     In situ spectroscopy    

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grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 721-731 doi: 10.1007/s11708-021-0766-8

Abstract: Titanium nitride (TiN) decorated N-doped titania (N-TiO2) composite (TiN/N-TiO2) is fabricated via an in situ nitridation using a hydrothermally synthesized TiO2After the optimization of the reaction condition, the resultant TiN/N-TiO2 composite delivers, light absorption, energy band structure, element composition, and electrochemical behavior of the composite/sub> composite photocatalysts for high-efficiency water splitting.

Keywords： photocatalytic H2 evolution     TiN/N-TiO2 composite     plasmonic effect     in-situ    

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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) hasExcept for the single-stage ammonia production cycle with MnCl2, other sorption-SCR strategies

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

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Fabrication of form stable NaCl-Al2O3 composite for thermal energy storage by cold sintering process

Bilyaminu Suleiman, Qinghua Yu, Yulong Ding, Yongliang Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 727-735 doi: 10.1007/s11705-019-1823-2

Abstract: A form stable NaCl-Al O (50-50 wt-%) composite material for high temperature thermal energy storageThe fabricated composite achieved as high as 98.65% of the theoretical density.The NaCl-Al O composite also retained the chloride salt without leakage after 30 heating-cooling cyclesmicroscope also showed limited grain growth, high density, uniform NaCl distribution and clear faceted compositeThe composite was found to have fair mass losses due to volatilization.

Keywords： cold sintering process     composite fabrication     thermal energy storage     phase change materials    

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Electro-catalytic activity of CeO modified graphite felt for carbamazepine degradation via E-peroxone

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1410-x

Abstract:

•CeOx/GF-EP process had the better degradation efficiency

Keywords： E-peroxone     CeOx     Graphite felt     Carbamazepine     Mineralization    

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Effects of preparation methods on the activity of CuO/CeO

Huanhuan Shang, Xiaoman Zhang, Jing Xu, Yifan Han

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 603-612 doi: 10.1007/s11705-017-1661-z

Abstract: CO oxidation has been investigated on three CuO/CeO catalysts prepared by impregnation, co-precipitationcatalyst prepared by impregnation has more highly dispersed CuO and stronger interactions between CuO and CeOexists in the catalyst prepared by the mechanical mixing method due to the separate phases of CuO and CeO

Keywords： CuO/CeO2     CO oxidation     interfaces     structure-performance relationship     active sites    

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Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 156-161 doi: 10.1007/s11783-010-0295-x

Abstract: A series of CeO supported V O catalysts with various loadings were prepared with different calcination

Keywords： V2O5/CeO2 catalysts     NH3-SCR (selective catalytic reduction    

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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    

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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 systemsIn this Account, we primarily focused on (1) the oxidative reactivity of Mn- and Fe-oxides and (2) theThe effects of common metal ions such as Mn2+ , Ca2+, Ni2+, Cr3+ and Cu2+, ligands such as small anionicligands and natural organic matter (NOM), and second metal oxides such as Al, Si and Ti oxides on the

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

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Title Author Date Type Operation

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

Journal Article

Al2O3 and CeO2-promoted MgO sorbents for CO2 capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Journal Article

Interface engineering for enhancing electrocatalytic oxygen evolution reaction of CoS/CeO heterostructures

Journal Article

CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Journal Article

Metal-organic framework loaded manganese oxides as efficient catalysts for low-temperature selective

Minhua Zhang, Baojuan Huang, Haoxi Jiang, Yifei Chen

Journal Article

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

Journal Article

Controlling the Reconstruction of Ni/CeO2 Catalyst during Reduction for Enhanced CO Methanation

Xinyu Cao,Tiancheng Pu,Bar Mosevitzky Lis,Israel E. Wachs,Chong Peng,Minghui Zhu,Yongkang Hu,

Journal Article

grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

Journal Article

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

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Journal Article

Fabrication of form stable NaCl-Al2O3 composite for thermal energy storage by cold sintering process

Bilyaminu Suleiman, Qinghua Yu, Yulong Ding, Yongliang Li

Journal Article

Electro-catalytic activity of CeO modified graphite felt for carbamazepine degradation via E-peroxone

Journal Article

Effects of preparation methods on the activity of CuO/CeO

Huanhuan Shang, Xiaoman Zhang, Jing Xu, Yifan Han

Journal Article

Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

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