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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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Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 365-381 doi: 10.1007/s11783-013-0520-5

Abstract: In this work, xylene removal from waste gas streams was investigated via catalytic oxidation over Pd/carbon-zeolite and Pd/carbon-CeO nanocatalysts.

Keywords： Pd/carbon-CeO2     Pd/carbon-zeolite     pine cone     ZnCl2     catalytic oxidation     xylene    

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Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 929-936 doi: 10.1007/s11705-019-1912-2

Abstract: Five hundred ppm Pd/CeO catalyst was prepared and evaluated in selective hydrogenation of acetylenePd/CeO catalyst could be activated by the feed gas during reactions and the catalyst without reductionThis could be ascribed to the formation of Pd Ce O or Pd-O-Ce surface species based on the X-ray diffraction

Keywords： selective hydrogenation     acetylene     Pd/CeO2     strong interaction    

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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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A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 177-184 doi: 10.1007/s11705-016-1604-0

Abstract: The hydrogenation of 2-ethylanthraquinone (eAQ), 2- -amylanthraquinone (taAQ) and their mixtures withmolar ratios of 1:1 and 1:2 to the corresponding hydroquinones (eAQH and taAQH ) were studied overa Pd/Al O catalyst in a semi-batch slurry reactor at 60 °C and at 0.3 MPa.can be ascribed to the longer and branched side chain in taAQ, which limits its accessibility to the PdDensity functional theory calculations showed that it is more difficult for taAQ to adsorb onto a Pd

Keywords： hydrogenation     hydrogen peroxide     anthraquinone     Pd catalyst     AO process    

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Efficient dechlorination of 2,4-dichlorophenol in an aqueous media with a mild pH using a Pd/TiO

Jiangkun DU,Jianguo BAO,Wei HU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 919-928 doi: 10.1007/s11783-015-0794-x

Abstract: In this study, palladium-loaded titania nanotubes was fabricated on a titanium plate (Pd/TiO NTs/Ti)for efficient electrodechlorination of 2,4-chlorophenol with a mild pH condition.The nature of Pd/TiO NTs/Ti electrodes was characterized by field-emission scanning electron microscopeon titania nanotubes arrays on the Pd/TiO NTs/Ti surface.chlorine from 2, 4-dichlorophenol since only phenol was detected as the byproduct and the concentration

Keywords： Pd/TiO2NTs/Ti cathode     chlorophenols     electrocatalytic dechlorination     wastewater treatment    

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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 catalystThe active phase of methane combustion over supported palladium catalyst is the Pd /Pd mixture.Zr addition inhibits Pd aggregation and enhances the redox properties of active phase Pd / Pd .(Pd / Pd ).

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

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Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0976-9

Abstract: Three types of catalysts, Pt/BaO/Al O , Pt/Pd mechanical mixing catalyst (Pt/BaO/Al O +Pd/Al O ) andPt-Pd co-impregnation catalyst (Pt-Pd/BaO/Al O ) were prepared by incipient wetness impregnation methodand reduction process, while an opposite trend was found over (Pt-Pd/BaO/Al O +Al O ).Most of N O formed over (Pt-Pd/BaO/Al O +Al O ) was originated from Pd/BaO/Al O component.H -TPR results indicated Pd-Ba interaction resulted in more difficult-to-reduce PdO species over Pd/

Keywords： NOx storage reduction     Pt/BaO/Al2O3     Pd doping     N2O formation    

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A study on the catalytic performance of Pd/γ-Al

Ruizhi CHU, Xianyong WEI, Zhimin ZONG, Wenjia ZHAO

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 452-456 doi: 10.1007/s11705-010-0522-9

Abstract: A series of Pd/γ-Al O hybrid catalysts were prepared by impregnation and subsequent calcination undermicrowave irradiation on the catalytic property was mainly attributed to both the higher dispersion of Pdand the significant increase in the adsorption on the CO-bridge of Pd.CO-bridge adsorption and thereby decreased the catalytic activity, whereas the coverage by metallic Pd

Keywords： Pd/γ-Al2O3     direct synthesis     dimethyl ether     calcination under microwave irradiation    

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2-Aminopyridine functionalized cellulose based Pd nanoparticles: An efficient and ecofriendly catalyst

Peibo Hu,Yahao Dong,Xiaotian Wu,Yuping Wei

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 389-395 doi: 10.1007/s11705-016-1575-1

Abstract: A palladium catalyst supported on 2-aminopyridine functionalized cellulose was synthesized and fullygood yields, and easily recycled by simple filtration after reaction without the loss of metal Pd.

Keywords： cellulose-supported     2-aminopyridine     palladium nanoparticles     ecofriendly catalyst     Suzuki cross-coupling    

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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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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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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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Metabolic interventions combined with CTLA-4 and PD-1/PD-L1 blockade for the treatment of tumors: mechanisms

Frontiers of Medicine   Pages 805-822 doi: 10.1007/s11684-023-1025-7

Abstract: To date, immune checkpoint inhibitors (ICIs) of CTLA-4 and PD-1/PD-L1 represent the main class of immunotherapyBlockade of CTLA-4 and PD-1/PD-L1 has shown remarkable efficacy in several specific types of cancers,the generalized mechanism of targeting cancer metabolism at three crucial immune checkpoints (CTLA-4, PD-1, and PD-L1) to influence ICB therapy and propose potential combined immunotherapeutic strategies co-targeting

Keywords： CTLA-4     PD-1     PD-L1     immune checkpoint blockade (ICB)     metabolic reprogramming     combined tumor therapeutic    

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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

Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Journal Article

Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

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

A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Journal Article

Efficient dechlorination of 2,4-dichlorophenol in an aqueous media with a mild pH using a Pd/TiO

Jiangkun DU,Jianguo BAO,Wei HU

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

Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Journal Article

A study on the catalytic performance of Pd/γ-Al

Ruizhi CHU, Xianyong WEI, Zhimin ZONG, Wenjia ZHAO

Journal Article

2-Aminopyridine functionalized cellulose based Pd nanoparticles: An efficient and ecofriendly catalyst

Peibo Hu,Yahao Dong,Xiaotian Wu,Yuping Wei

Journal Article

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

Journal Article

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

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

Metabolic interventions combined with CTLA-4 and PD-1/PD-L1 blockade for the treatment of tumors: mechanisms

Journal Article