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Deactivation and regeneration of TS-1/SiO

Hainan SHI, Yaquan WANG, Guoqiang WU, Wenping FENG, Yi Lin, Teng ZHANG, Xing JIN, Shuhai WANG, Xiaoxue WU, Pengxu YAO

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 202-209 doi: 10.1007/s11705-013-1328-3

Abstract: TS-1/SiO catalyst for the epoxidation of propylene with hydrogen peroxide in a fixed-bed reactor hasframework structure and the content of titanium in the framework of the deactivated and regenerated TS-1-1/SiO catalysts were not changed.-1.The deposited materials on the deactivated TS-1/SiO catalyst could be removed by treatment with hydrogen

Keywords： TS-1/SiO2     epoxidation of propylene     fixed-bed reactor     deactivation     regeneration    

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Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 772-783 doi: 10.1007/s11705-022-2280-x

Abstract: Development of a titanium silicalite-1 (TS-1) catalyst with good crystallinity and a four-coordinateHerein, a size-controlled TS-1 zeolite (TS-1#0.1ACh (acetylcholine)) was synthesized via steam-assistedThe crystalline sizes of the as-synthesized TS-1#0.1ACh catalysts were controlled with the acetylcholinecontent, and characterization results showed that the particle sizes of highly crystalline TS-1#0.1AChThese findings may provide novel, easily separable and large TS-1 catalysts for efficient and clean industrial

Keywords： size-controlled TS-1     crystal modifier     steam-assisted crystallization     epoxidation    

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Preparation and rheological behaviors of PA6/SiO2 nanocompiste

WEI Shanshan, LIU Yuejun, LI Xianggang, HUANG Yugang, WANG Xiayu, ZHANG Ping

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 332-337 doi: 10.1007/s11705-007-0060-2

Abstract: The polyamide 6 (PA6)/SiO nanocomposites were prepared by in situ polymerization and the rheologicalThe results showed that the SiO particle size was around 50 nm and the particles dispersed evenly inapparent viscosities of nanocomposites increased initially and then decreased with the increase in nano-SiOWith the increase in nano-SiO content the apparent viscous activation energies of nanocomposites increasedrheological behaviors revealed that there were strong interactions between PA6 macromolecule chains and nano-SiO

Keywords： polyamide     temperature     rheological     activation     pesudoplastic    

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Hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol on NiB/SiO2 amorphous alloy catalyst

SONG Yun, LI Wei, ZHANG Minghui, TAO Keyi

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 151-154 doi: 10.1007/s11705-007-0028-2

Abstract: NiB/SiO amorphous alloy catalyst was prepared by power electroless plating method and characterized byThe catalytic performance of NiB/SiO was investigated for the hydrogenation of furfuryl alcohol (FA)

Keywords： following     Brunauer     electroless     temperature     transmission    

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A method for improve the mechanical robustness of the superhydrophobic wood

Wang Chengyu and Liu Feng

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 79-82

Abstract: repellency and corrosion resistance.We have investigated a fabrication of polyvinyl alcohol（PVA）/silica（SiO2

Keywords： superhydrophobic     mechanical robustness     PVA/SiO2     wood surface    

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Fabrication of superhydrophobic SiO2/PS coatings on wood surface

Zhang Ming and Wang Chengyu

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 83-86

Abstract:

The silica particles with unique morphology and hydrophobicity have been synthesized via a one-step sol-gel process，which as well as polystyrene was employed in the bionic and stably superhydrophobic coatings with water contact angle of 153° and sliding angle less than 5° on wood surface by a drop-coating method. Scanning electron microscope (SEM) studies revealed that the composite coatings possess two dimensional hierarchical structures comprising of micron scale papilla and submicron scale granules. The synergistic effect of micron/submicron binary structure and low surface energy layer was responsible for the superhydrophobicity of wood surface. Moreover，the stability and durability of treated wood have been investigated as well，and the results showed that the product possesses superhydrophobic property in a wide extent，such as pure water，corrosive water under both acidic and basic conditions，some common organic solvents，which offers an opportunity to extend the range of practical applications for wood resources.

Keywords： superhydrophobic     wood surface     drop-coating method     composite coatings    

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Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with

KE Yangchuan, SUN Mingzhuo, SONG Yanxin, YANG GuangFu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 76-80 doi: 10.1007/s11705-007-0016-6

Abstract: compatibility with other additives, as well as to solve complex problems in practical applications, SiOaddition, it maintains over 90% of the mechanical properties with a deformation coefficient less than 1%

Keywords： deformation coefficient     distortion temperature     excellent     NPP0-PP     traditional nucleation    

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Applied study on pyrolysis of bisphenol A diphosphate flame-retarded ABS

Xu Xiaonan,Lu Lingang,Chen Nan,Yin Quanming,Wang Dawei

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 62-69

Abstract: UL94), flame retardant performances, smoke release of bisphenol A diphosphate (BDP), BDP/APP and BDP/SiO2 added in ABS are studied.Adding BDP//NP / SiO2 =20 %/5 %/7 %BDP into ABS resin, its impact strength increased by 20.00ABS resin added BDP/NP (20 %/5 %) and nanometer SiO2(7 %) has the best flame retarded and

Keywords： BDP     ABS     APP     SiO2     flame retardant     smoke    

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Study on Electrodeposited Zn-Fe-SiO2 Composite Coatings

Zhang Yingjie,Fan Yunying,Dong Peng,Luo Shaolin

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 93-96

Abstract:

Experiments on electrodeposited Zn-Fe-SiO2 composite coatings are reported.Effects

Keywords： electrodeposition     composite coating     Zn-Fe-SiO2    

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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.It has been proved that Al2O3 can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h.addition, a simple schematic diagram of the change of surface species on the catalyst surface after Al2<

Keywords： Pb/SiO2     Al2O3     propane dehydrogenation     propene     stability    

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Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 215-218 doi: 10.1007/s11705-009-0055-2

Abstract: To facilitate the recovery of Pb/SiO catalyst, magnetic Pb/Fe O /SiO samples were prepared separatelycatalytic activity was investigated in the reaction for synthesizing propylene carbonate from urea and 1,2, the Pb/Fe O /SiO sample shows good catalytic activity and magnetism.Under the reaction conditions of a reaction temperature of 180°C, reaction time of 2 h, catalyst percentageof 1.7 wt-% and a molar ratio of urea to PG of 1∶4, the yield of propylene carbonate attained was 87.7%

Keywords： Pb/Fe3O4/SiO2 magnetic particle     urea     1     2-propylene glycol     propylene    

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SiO2 passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 52-59 doi: 10.1007/s11708-016-0429-3

Abstract: In this paper, a comprehensive understanding of the SiO passivation layer grown by liquid phase depositionfound that the post-annealing process could significantly enhance the passivation effect of the LPD SiOfield-effect passivation mechanisms played important roles in outstanding passivation effect of the LPD SiOBy utilizing the LPD SiO film as surface passivation layer, a 19.5%-efficient silicon solar cell on

Keywords： Si solar cell     passivation     SiO2     liquid phase deposition     carrier lifetime    

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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 tetrafluoroborateoptimal conditions of catalyst dosage (based on the mass of cinnamaldehyde used) 10%, reaction pressure 2MPa, temperature 373 K and reaction time 2 h, the conversion of cinnamaldehyde and the selectivity to

Keywords： dispersive     conversion     catalytic     2-hydroxyethyl     catalytic activity    

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Theoretical and experimental study on the fluidity performance of hard-to-fluidize carbon nanotubes-based CO2

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1460-1475 doi: 10.1007/s11705-022-2159-x

Abstract: CO2 capture capacity.The low-cost fluidizable-SiO2 nanoparticles are used as assistant material to improve theResults reveal that a minimum amount of 7.5 and 5 wt% SiO2 nanoparticles are required to achievePure carbon nanotubes + 7.5 wt% SiO2 and synthesized carbon nanotubes + 5 wt% SiO2–1<

Keywords： CO2 capture     CNT-based sorbents     fluidization     SiO2 nanoparticles     fluidized bed    

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Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties of polyurethane matrix

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 1-14 doi: 10.1007/s11705-022-2176-9

Abstract: Newly synthesized functional nanoparticles, 3-amino-1,2,4-triazole (ATA)/SiO2–TiO2Rcoat) of PU–ATA/SiO2–TiO2 was determinedThe current measured along the scratched surface of the PU–ATA/SiO2–TiO2 coatingWater contact angle testing validated the hydrophobic nature of the PU–ATA/SiO2–TiO2SiO2−TiO2 nanoparticles was 2 wt %, dynamic mechanical

Keywords： SiO2/TiO2 nanoparticle     nanocomposite coatings     dynamic mechanical analysis     electrochemical    

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Title Author Date Type Operation

Deactivation and regeneration of TS-1/SiO

Hainan SHI, Yaquan WANG, Guoqiang WU, Wenping FENG, Yi Lin, Teng ZHANG, Xing JIN, Shuhai WANG, Xiaoxue WU, Pengxu YAO

Journal Article

Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Journal Article

Preparation and rheological behaviors of PA6/SiO2 nanocompiste

WEI Shanshan, LIU Yuejun, LI Xianggang, HUANG Yugang, WANG Xiayu, ZHANG Ping

Journal Article

Hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol on NiB/SiO2 amorphous alloy catalyst

SONG Yun, LI Wei, ZHANG Minghui, TAO Keyi

Journal Article

A method for improve the mechanical robustness of the superhydrophobic wood

Wang Chengyu and Liu Feng

Journal Article

Fabrication of superhydrophobic SiO2/PS coatings on wood surface

Zhang Ming and Wang Chengyu

Journal Article

Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with

KE Yangchuan, SUN Mingzhuo, SONG Yanxin, YANG GuangFu

Journal Article

Applied study on pyrolysis of bisphenol A diphosphate flame-retarded ABS

Xu Xiaonan,Lu Lingang,Chen Nan,Yin Quanming,Wang Dawei

Journal Article

Study on Electrodeposited Zn-Fe-SiO2 Composite Coatings

Zhang Yingjie,Fan Yunying,Dong Peng,Luo Shaolin

Journal Article

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Journal Article

Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Journal Article

SiO2 passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Journal Article

Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

FAN Qingming, LIU Yingxin, ZHENG Yifan, YAN Wei

Journal Article

Theoretical and experimental study on the fluidity performance of hard-to-fluidize carbon nanotubes-based CO2

Journal Article

Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties of polyurethane matrix

Journal Article