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Gamma(ɣ)‑MnO_(2)/rGO Fibered Cathode Fabrication from Wet Spinning and dip coating Techniques for Cable‑Shaped Zn‑Ion Batteries

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Advanced Fiber Materials 2022年第3期4卷 457-474页

作者： Nakarin Subjalearndee Nanfei He Hui Cheng Panpanat Tesatchabut Priew Eiamlamai Pimpa Limthongkul Varol Intasanta Wei Gao Xiangwu Zhang Fiber and Polymer Science Program Wilson College of TextilesNorth Carolina State University1020 Main Campus DriveRaleighNC 27606USA National Nanotechnology Center National Science and Technology Development Agency111 Thailand Science ParkPhahonyothin RoadKhlong NuengKhlong LuangPathum Thani 12120Thailand National Energy Technology Center National Science and Technology Development Agency114 Thailand Science ParkPhahonyothin RoadKhlong NuengKhlong LuangPathum Thani 12120Thailand

Cable/fber-shaped Zn-ion batteries are designed to power wearable electronics that require high fexibility to operate on human ***,one of technical challenges of these devices is the complexity and high cost for manufacturing fbered *** this work,we demonstrated gamma manganese oxide(ɣ-MnO_(2))/reduced graphene oxide(rGO)fbered cathode fabrication using facile and cost-efective fber production and active material coating ***,rGO fbers were fabricated via wet spinning,followed by chemical reduction with hydroiodic acid(HI).The synthesized rGO fber bundle was then dip-coated with a mixture ofɣ-MnO_(2),carbon black or multi-walled carbon nanotubes,and xanthan gum or polyvinylidene fuoride binder to obtainɣ-MnO_(2)/rGO fbered *** studied the efect of binders and conductive materials on physical properties and electrochemical performance of the fbered *** was found that hydrophobic binder had more benefts than hydrophilic binder by providing higher active material loading,better coating layer homogeneity,and more stable electrochemical ***-shaped Zn-ion batteries(CSZIBs)were then assembled by using theɣ-MnO_(2)/rGO fbered cathode,Zn wire anode,and xanthan gum polymeric gel electrolyte with 2 M ZnSO_(4) and 0.2 M MnSO_(4) salts without a *** investigated the battery assembling procedure on a glass slide(prototype ZIB)and in a plastic tube(cable-shaped ZIB),and evaluated their electrochemical *** CSZIB showed promising maximum capacity of~230 mAh/g with moderate cycling stability(80%capacity retention after 200 cycles)and high fexibility by maintaining the potential after consecutive pressing for 200 times under controlled pressing distance,duration,and testing ***,we explored ion intercalation behaviours and proposed a H^(+)/Zn^(2+)co-intercalation mechanism in ZIB withɣ-MnO_(2) active material.

关键词： Zn-ion battery Wet spinning dip coating Reduced graphene oxide Manganese dioxide Fiber

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SnS thin films deposited by chemical bath deposition, dip coating and SILAR techniques

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Journal of Semiconductors 2016年第5期37卷 10-18页

作者： Sunil H.Chaki Mahesh D.Chaudhary M.P.Deshpande P.G.Department of Physics Sardar Patel University

The SnS thin films were synthesized by chemical bath deposition （CBD）, dip coating and successive ionic layer adsorption and reaction （SILAR） techniques. In them, the CBD thin films were deposited at two tem- peratures： ambient and 70℃. The energy dispersive analysis of X-rays （EDAX）, X-ray diffraction （XRD）, Raman spectroscopy, scanning electron microscopy （SEM） and optical spectroscopy techniques were used to characterize the thin films. The electrical transport properties studies on the as-deposited thin films were done by measuring the I-V characteristics, DC electrical resistivity variation with temperature and the room temperature Hall effect. The obtained results are deliberated in this paper.

关键词： SnS thin films chemical bath deposition dip coating SILAR

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Lubrication theory for free-surface flows with finite slopes and fluxes

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Acta Mechanica Sinica 2022年第11期38卷 57-66页

作者： He-Wei Du Jian Qin Peng Gao Department of Modern Mechanics University of Science and Technology of ChinaHefeiAnhui230026China State Key Laboratory of Fire Science University of Science and Technology of ChinaHefeiAnhui230026China

It is known that free-surface flows with small slopes can be described by classical lubrication *** replacing the assumption of quasi-parallel flows with local wedge flows,the classical lubrication theory has been generalized to the situation with finite surface slopes and vanishing fluxes,e.g.,steady capillary flows with moving contact *** this work,this theory is further extended by imposing the contribution of finite fluxes,which can be modeled by a source/sink flow in a *** resulting lubrication equation is used to investigate the surface morphologies observed in dip coating of an inclined plate,including the Landau-Levich-Derjaguin film,dimple and capillary *** of these structures on the inclination angle and relative speed with respect to the plate is discussed in *** solutions of the lubrication equation agree well with available asymptotic theory.

关键词： Free surface flow Lubrication theory dip coating

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对所需表面进行相同处理却得到不同疏水性的简单通用方法

对所需表面进行相同处理却得到不同疏水性的简单通用方法

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2012年全国高分子材料科学与工程研讨会

作者：何周坤强虹张孟伟陈枫傅强四川大学高分子科学与工程学院高分子材料工程国家重点实验室

＜正＞材料表面的润湿性尤其是疏水性近年来得到了科学界和工程界的广泛关注。材料表面的疏水程度可以通过杨氏方程中的接触角进行定量的描述。由于方程主要考虑在光滑的基底材料表面,疏水性与固气,固液和液气三相界面自由能的关系,实... 详细信息

＜正＞材料表面的润湿性尤其是疏水性近年来得到了科学界和工程界的广泛关注。材料表面的疏水程度可以通过杨氏方程中的接触角进行定量的描述。由于方程主要考虑在光滑的基底材料表面,疏水性与固气,固液和液气三相界面自由能的关系,实际应用中的材料表面大部分

关键词： Hydrophobicity Superhydrophobicity dip coating PDMS SiO2

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