检索结果-南通市图书馆

electrophoretic deposition of a supercapacitor electrode of activated carbon onto an indium-tin-oxide substrate using ethyl cellulose as a binder

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2020年第23期58卷 188-196页

作者： Taeuk Kim Seong-Hoon Yi Sang-Eun Chun School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea

A transparent energy storage device is an essential component for transparent *** increasing demand for high-power devices stimulates the development of transparent supercapacitors with high power density.A transparent electrode for such supercapacitors can be assembled via the electrophoretic deposition of an active material powder with a binder onto a transparent *** properties of the binder critically influence the electrochemical behavior and performance of the resulting *** cellulose(EC)is known as an eco-friendly,transparent,flexible,and inexpensive ***,we fabricated an electrode film with EC binder via electrophoretic deposition on an indium tin oxide(ITO)substrate instead of using the conventional polytetrafluoroethylene(PTFE)*** assembled electrodes with EC and PTFE were compared to investigate the feasibility of EC as a binder from different perspectives,including homogeneity,wettability,electrochemical behavior,and mechanical *** EC enabled the formation of a homogeneous film composed of smaller particles and with a higher specific capacitance compared with films prepared with *** annealing improved the adhesion strength of the EC because of its glass transition;however,its hydrophobic nature limited utilization of the active material for charge *** electrochemical activation improved the wettability of the electrode,resulting in an increased capacitance of 60 F g^(-1).Furthermore,even with the lower wettability of EC compared with that of PTFE,better rate performance was possible with the EC *** increased mechanical stability after the annealing process ensured an excellent cycle life of 95%capacitance retention for 15,000 cycles.

关键词： electrophoretic deposition Transparent electrode Activated carbon Ethyl cellulose Indium tin oxide

electrophoretic deposition of chitosan-bioglass^(■)-hydroxyapatite-halloysite nanotube composite coating

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2022年第11期41卷 3850-3857页

作者： Arman Molaei MardAli Yousefpour Department of Materials Engineering Tehran Science and Research BranchIslamic Azad UniversityTehran***Iran Faculty of Materials Science and Metallurgical Engineering Semnan UniversitySemnan***Iran

The composite coatings of chitosan(CS)-bioglass^(■)(BG)-hydroxyapatite(HA)-halloysite nanotube(HNT)were investigated and produced via electrophoretic deposition(EPD)*** utilization of CS as a dispersing,blending and charging agent for ceramic particles,including BG,HA and HNT,allowed the formation of CS-BG/HA/HNT composite,functionally graded composite(FGC)and bilayer film containing different *** results of scanning electron microscopy(SEM),energy-dispersive spectrometry(EDS),X-ray diffraction(XRD)and Fourier transform infrared spectroscopy(FTIR)illustrate the composite in the form of the optimum distribution of ceramic components in the CS matrix with thickness of 28μm on titanium(Ti)*** impedance spectroscopy(EIS)and potentiodynamic polarization tests indicate that the corrosion resistance of the coated sample increases in corrected simulated body fluid(C-SBF)at 37℃.Finally,the apatiteinducing ability of CS-BG-HA-HNT is proved by the formation of carbonated hydroxyapatite particles on composite coating in C-SBF.

关键词： Four-component coating Composites Biomaterials electrophoretic deposition Corrosion

electrophoretic deposition of Hydroxyapatite Coating

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2003年第1期19卷 30-32页

作者： ZudeFENG QishenSU DepartmentofMaterialsScienceandEnigneering StateKeyLaboratoryforPhysicalChemistryofSolidSurfaceXiamenUniversityXiamen361005China DepartmentofMaterialsScienceandEnigneering StateKeyLaboratoryforPhys

Hydroxyapatite (HAP) coatings were deposited onto titanium substrates by electrophoretic deposition (EPD) fromethanol. The results indicated that the addition of very small amount of HCI resulted in a decrease in the aging timeas well as the suspension concentration required to obtain a coating. In addition, the results revealed the existenceof a critical saturated voltage (Vsat), which had significant effect on the quality of deposition. The mean interfacialshear strengths of HAP coatings after sintering were found to be greater than 13 MPa.

关键词： Hydroxyapatite electrophoretic deposition Titanium

electrophoretic deposition of Oxide Nanoparticles for Electron Emission Enhancement

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2010年第11期26卷 1032-1036页

作者： Jong Rok Ahn Gil Seon Kang Hwack Joo Lee Chang Joon Park Korea Research Institute of standards and Science

Four oxide nanoparticles,such as yttrium oxide,lanthanum oxide,cerium oxide and zirconium oxide were coated on rhenium filaments by an electrophoretic deposition *** oxide coatings were examined by scanning electron microscopy,and electron emission characteristics of the oxide-coated rhenium were studied to find alternative oxide materials for replacing the hazardous thorium *** four oxides tested in this work,yttrium oxide and lanthanum oxide coated rhenium showed enhanced electron emission compared with an uncoated ***,lanthanum oxide coating evaporated too quickly in a vacuum chamber,and hence yttrium oxide was found to be the only alternative material for use in a routine mass *** optimum coating thickness of the yttrium oxide and lanthanum oxide was around 20 μm.

关键词： electrophoretic deposition Oxide nanoparticles Scanning electron microscopy (SEM) Electron emission

electrophoretic deposition of silk fibroin coatings with pre-defined architecture to facilitate precise control over drug delivery

在线全文

学校读者我要写书评

暂无评论

Bioactive Materials 2021年第11期6卷 4243-4254页

作者： Xian Cheng Dingpei Long Lili Chen John A.Jansen Sander C.G.Leeuwenburgh Fang Yang Department of Dentistry-Biomaterials Radboud Institute for Molecular Life SciencesRadboud University Medical CenterPhilips van Leydenlaan 256525EX Nijmegenthe Netherlands Jiangsu Key Laboratory of Oral Diseases Nanjing Medical UniversityNanjing210029PR China Institute for Biomedical Sciences Center for Diagnostics&TherapeuticsGeorgia State UniversityAtlantaGA30302USA Department of Stomatology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022PR China

The therapeutic precision and clinical applicability of drug-eluting coatings can be substantially improved by facilitating tunable drug ***,the design of coatings which allows for precise control over drug release kinetics is still a major ***,a double-layered silk fibroin(SF)coating system was constructed by sequential electrophoretic deposition.A mixture of dissolved Bombyx mori SF(bmSF)molecules and pre-made bmSF nanospheres at different ratios was deposited as ***,this underlayer was covered by a top-layer comprising Antheraea pernyi SF(apSF)molecules(rich in arginylglycylaspartic acid,RGD)to improve the cellular response of the resulting double-layered ***,model drug doxycycline was either pre-mixed with dissolved bmSF molecules or pre-loaded into pre-made bmSF nanospheres at the same amount before their mixing and *** thickness and nanosphere content of the under-layer architecture were proportional to the deposition time and nanosphere concentration in precursor mixtures,*** surface topography,wettability,degradation rate and adhesion strength were comparable within the double-layered coating *** expected,RGD-rich apSF top-layer improved cell adhesion,spreading and proliferation compared with bmSF ***,the amount and duration of drug release increased linearly with increasing nanosphere concentration at fixed deposition time,whereas drug release amount increased linearly with increasing deposition *** results indicate that the dosage and kinetics of loaded drugs can be quantitatively tailored by altering nanosphere concentration and deposition time as main processing ***,this study illustrates the strong potential of pre-defining coating architecture to facilitate control over drug delivery.

关键词： electrophoretic deposition Coating Drug delivery kinetics Silk fibroin Nanospheres

electrophoretic deposition of graphene-based materials:A review of materials and their applications

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materiomics 2018年第2期4卷 108-120页

作者： Yifei Ma Jiemin Han Mei Wang Xuyuan Chen Suotang Jia State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyCollaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuanShanxi 030006China Department of Micro-and Nanosystem Technology Faculty of Technology and Maritime SciencesUniversity College of Southeast Norway3184 BorreNorway

Recently,graphene-based materials have been successfully fabricated by the electrophoretic deposition(EPD)technique and exhibited various extraordinary ***,research progress of the field of graphene-based materials prepared by the EPD process in recent 5 years is reviewed,including graphene films,graphene/non-metal composites,graphene/metal-based nanoparticles composites,graphene/polymer *** also summarize the experimental deposition conditions and the applications of the deposited graphene-based materials that have been *** can be concluded that EPD is a simple and reliable manipulation technique and promises a bright future for the production of graphenebased materials in the field of advanced nanocomposite *** the current issues and outlook of the development direction of EPD in future are also proposed.

关键词： electrophoretic deposition Graphene Graphene-based composite materials Applications

electrophoretic deposition of Al_(2)O_(3)/ZrO_(2) layer with controllable thickness in ethanol medium

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemistry in China 2011年第2期6卷 76-83页

作者： Chun-mei YANG Xian-chun CHEN Xiaoming LIAO Zhong-bing HUANG Ya-dong YAO Guang-fu YIN College of Materials Science and Engineering Sichuan UniversityChengdu 610064China

ZrO_(2) toughened Al_(2)O_(3)(Al_(2)O_(3)/ZrO_(2))ceramic layers with required thickness were prepared by electrophoretic deposition(EPD)method using ethanol suspensions with stabilizing agent of polyethyleneimine(PEI)under constant-voltage mode in this *** deposition of Al_(2)O_(3)/ZrO_(2) ceramic powders occurred on the titanium alloy cathode.A stable suspension with 1wt% PEI in ethanol at pH 5 was prepared in terms of the zeta potential and sedimentation of the *** effects of the suspension concentration,applied voltage,deposition time and processing method of titanium alloy cathode on the coating thickness and morphology were *** deposition layers on titanium alloys with smooth surfaces and thickness of 0.35–1.2 mm could be obtained by adjusting the aforementioned *** addition,after being sintered at 1500℃ for 3 h in air atmosphere,ZrO_(2) toughened Al_(2)O_(3) ceramic layers became smooth and dense.

关键词： electrophoretic deposition suspension Al_(2)O_(3) ZrO_(2)

Cathodic electrophoretic deposition of α-Fe_2O_3 coating

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2015年第6期22卷 2027-2035页

作者：马莉常通李小斌李志友张斗周科朝 School of Metallurgy and Environment Central South University State Key Laboratory of Powder Metallurgy (Central South University)

Submicro α-Fe2O3 coatings were formed using electrophoretic deposition(EPD) technique in aqueous media. The zeta potentials of different α-Fe2O3 suspensions with different additives were measured as a function of p H to identify the optimum suspension condition for deposition. electrophoretic depositions of α-Fe2O3 coatings under different applied electric fields and deposition time were studied and the effects of applied voltages and deposition time on deposition rates and thicknesses were investigated. The particle packing densities of the deposits at various applied voltages and deposition time were also analyzed by a scanning electron microscope(SEM). The results show that crack-free α-Fe2O3 coatings with uniform microstructure and good adherence to the nickel substrates are successfully obtained. electrophoretic deposited α-Fe2O3 coating from aqueous suspension is a feasible, low-cost and environmental friendly method.

关键词： electrophoretic deposition Fe2O3 coating aqueous solutions zeta potential

Effect of MgCl_(2) on electrophoretic deposition of TbF_(3) powders on Nd-Fe-B sintered magnet

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2023年第5期41卷 721-727,I0004页

作者： Chen Wang Yang Luo Zilong Wang Wenlong Yan Yanyan Zhao Ningtao Quan Haijun Peng Kaiwen Wu Yuehua Ma Chunlei Zhao Dunbo Yu National Engineering Research Center for Rare Earth GRINM Group Co.Ltd.Beijing 100088China GRIREM Advanced Materials Co. Ltd.Beijing 100088China General Research Institute for Nonferrous Metals Beijing 100088China

Using electrophoretic deposition(EPD)method,the TbF_(3)powders were deposited on the surface of sintered Nd-Fe-B magnets,and the effects of MgCl_(2)on electrophoretic deposition and grain boundary diffusion were *** results show that addition of 5 wt%MgCl_(2)can significantly improve the EPD efficiency and improve the adhesion of the coating by releasing local stress through the formation of special gully *** with Biesheuvel equation,the effects of suspension concentration,voltage and time on EPD amount were *** Biesheuvel equation can be simplified asγ=AUSct/L,and A(=0.0141-0.0144)in this experiment was calculated to achieve the quantitative calculation of EPD *** heat treatment of 875℃×10 h+500℃×1 h,the coercivity of 48H(7 mm)sintered magnet with 0.3 wt%TbF_(3)increases from 18.5 to 22.4 kOe,with an increase of 21.1%.The core-shell structure was observed by a back-scattered scanning electron microscope(BSE-SEM),which proves that the addition of MgCl_(2)has no adverse effect on the grain boundary diffusion of Nd-Fe-B sintered magnets.

关键词： electrophoretic deposition Nd-Fe-B TbF_(3) Coating adhesion Grain boundary diffusion Rare earths