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Gas phase ethylene polymerization over SiO

Liuzhong LI, Aiyou HAO, Ruihua CHENG, Boping LIU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 89-95 doi: 10.1007/s11705-010-0558-x

Abstract: Although an important industrial catalyst for producing high density polyethylene, the SiO -supportedorganosilyl chromate UCC S-2 catalyst has not been fully investigated compared with the SiO -supportedoxo chromium Phillips catalyst.In this work, gas phase ethylene polymerization by S-2 catalysts (Cat-1, Cat-2, and Cat-3) was carriedThe innovation by a simple catalyst technology created a new application to meet market demands.

Keywords： UCC S-2 catalyst     Al-alkyl co-catalyst     gas-phase ethylene polymerization     high density polyethylene    

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The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al2O3 with a small amount, wasintroduced into Pb/SiO2 catalyst in this study.As a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h.In addition, a simple schematic diagram of the change of surface species on the catalyst surface afterAl2O3 addition was also proposed.

Keywords： Pb/SiO2     Al2O3     propane dehydrogenation     propene     stability    

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Removal of P4, PH3 and H2S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Strategic Study of CAE 2005, Volume 7, Issue 6,   Pages 27-35

Abstract: hydrogen sulfide in yellow phosphorus tail gas was investigated with activated carbon and a home-made catalystKU2.Both KU2 and activated carbon proved to be effective catalysts in the catalytic oxidation process (COP) for H2S and PH3 removal.

Keywords： catalyst     catalytic oxidation     H2S     P4     PH3     fixed bed    

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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 fullyThis catalyst can be applied in the Suzuki cross-coupling reaction of aryl halides with arylboronic acids

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

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Boehmite-supported CuO as a catalyst for catalytic transfer hydrogenation of 5-hydroxymethylfurfuralto 2,5-bis(hydroxymethyl)furan

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 415-424 doi: 10.1007/s11705-022-2225-4

Abstract: 2,5-bis(hydroxymethyl)furan (BHMF) is an important monomer of polyester.Herein, we prepared a boehmite-supported copper-oxide catalyst for the selective hydrogenation of 5-hydroxymethylfurfuralTo establish the catalyst structure-activity correlation, a possible mechanism was proposed.The copper-oxide catalyst deactivated following CTH because ethanol reduced the CuO, which consequentlyFinally, calcination of the catalyst in air recovered its activity.

Keywords： biomass     5-hydroxymethylfurfural     2     5-bis(hydroxymethyl)furan     transfer hydrogenation     catalysis    

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Piezocatalytic performance of FeO−BiMoO catalyst for dye degradation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 716-725 doi: 10.1007/s11705-022-2265-9

Abstract: A Fe2O3−Bi2MoO6 heterojunction was synthesized via a hydrothermalThe various factors that affected the piezocatalytic property of composite catalyst were studied.Bi2MoO6 composite catalyst under 60 min of ultrasonic vibration.>3−Bi2MoO6 catalyst was proposed based on the band potential and quenchingThe results demonstrated the potential of using Fe2O3−Bi2MoO6

Keywords： piezocatalysis     Fe2O3−Bi2MoO6     dye decomposition     ultrasonic    

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Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 476-480 doi: 10.1007/s11705-010-0512-y

Abstract: Ni-Co/Al O -ZrO bimetallic catalyst has good performance in the reduction of active components Ni, CoCompared with mono-metallic catalyst, bimetallic catalyst could provide more active sites and CO adsorptionsites (C+ CO = 2CO) for the methane-reforming reaction, and a more appropriate force formed betweento the CH -CO -TPSR, there were 80.9% and 81.5% higher CH and CO conversion over Ni-Co/Al O -ZrO catalystThe high activity and excellent anti-coking of the Ni-Co/Al O -ZrO catalyst were closely related to

Keywords： Ni-Co bimetallic catalyst     composite support     CH4 reforming with CO2    

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Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 468-472 doi: 10.1007/s11705-008-0074-4

Abstract: The preparation and regeneration conditions of the identified catalyst X/Y/MgO/-AlO with high catalyticoptimum reaction conditions of the pilot plant tests designed with an oil/methanol molar ratio of 1 : 10, catalyst

Keywords： temperature     presence     addition     catalytic activity     catalyst X/Y/MgO/-AlO    

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Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1363-5

Abstract:

• A V2O5/TiO2 granular catalyst for

Keywords： sub>x     Chlorobenzene     Simultaneous removal     Kinetic study     Performance prediction     V2O5/TiO2     Graphical abstract    

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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Hence, developing an efficient and environmentally friendly catalyst is imperative.Notably, the optimized 10Fe-8Cu/TiO2 catalyst exhibited exceptional catalytic performance

Keywords： NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO2     high selectivity    

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New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 421-430 doi: 10.1007/s11708-021-0727-2

Abstract: In recent years, Fe-N-C catalyst is particularly attractive due to its high oxygen reduction reactionHowever, the durability problems still pose challenge to the application of Fe-N-C catalyst.Although considerable work has been done to investigate the degradation mechanisms of Fe-N-C catalystIn fact, the 2e pathway in the ORR process of Fe-N-C catalyst would result in the formation of H O ,In this paper, a new insight into the effect of potential on degradation of Fe-N-C catalyst was provided

Keywords： proton exchange membrane fuel cells (PEMFCs)     oxygen reduction reaction (ORR)     Fe-N-C catalyst     potential     H2O2     degradation    

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The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4-CO 2 reforming

Weidong ZHANG, Yongfa ZHANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 147-152 doi: 10.1007/s11705-009-0242-1

Abstract: A kind of new catalyst—carbonaceous catalyst—for CH-CO reformation has been developed inhydroxyl, carbonyl, carboxyl, and lactonic, and ash such as FeO, NaCO, and KCO in the carbonaceous catalystIt has been found that the carbonaceous catalyst is an efficient catalyst on CO-CH reforming.With the decrease of oxygen-bearing functional group, the catalytic activity of carbonaceous catalystCaO can catalyze the gasification between carbonaceous catalyst and CO; AlO and MgO inhibit the CO-CH

Keywords： oxygen-bearing functional     carboxyl     phenolic hydroxyl     CH-CO reformation     CO-CH reforming    

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Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

FAN Qingming, LIU Yingxin, ZHENG Yifan, YAN Wei

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 63-68 doi: 10.1007/s11705-008-0013-4

Abstract: The results show that the Ni/SiO catalyst prepared with 1-(2-hydroxyethyl)-3-methyl-imidazole tetrafluoroborateUnder the optimal conditions of catalyst dosage (based on the mass of cinnamaldehyde used) 10%, reactionpressure 2 MPa, temperature 373 K and reaction time 2 h, the conversion of cinnamaldehyde and the selectivity

Keywords： dispersive     conversion     catalytic     2-hydroxyethyl     catalytic activity    

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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: In this study, reconstruction of the supported nickel catalyst was found to be sensitive to pretreatmentIn contrast to the traditional activation procedure in hydrogen, activating the catalyst in syngas createdThe unique post-activation catalyst structure offered enhanced CO adsorption and an improved CO methanationThe current strategy to tune the catalyst structure via manipulating the activation conditions can potentially

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

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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.in taAQ, which limits its accessibility to the Pd surface and its diffusion through the pores of the catalyst

Keywords： hydrogenation     hydrogen peroxide     anthraquinone     Pd catalyst     AO process    

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Title Author Date Type Operation

Gas phase ethylene polymerization over SiO

Liuzhong LI, Aiyou HAO, Ruihua CHENG, Boping LIU

Journal Article

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Journal Article

Removal of P4, PH3 and H2S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Journal Article

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

Peibo Hu,Yahao Dong,Xiaotian Wu,Yuping Wei

Journal Article

Boehmite-supported CuO as a catalyst for catalytic transfer hydrogenation of 5-hydroxymethylfurfuralto 2,5-bis(hydroxymethyl)furan

Journal Article

Piezocatalytic performance of FeO−BiMoO catalyst for dye degradation

Journal Article

Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Journal Article

Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU

Journal Article

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Journal Article

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Journal Article

The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4-CO 2 reforming

Weidong ZHANG, Yongfa ZHANG,

Journal Article

Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

FAN Qingming, LIU Yingxin, ZHENG Yifan, YAN Wei

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

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