Fabrication of membrane electrode assembly for polymer electrolyte membrane fuel cell

... common fuel cell types are Polymer Electrolyte Membrane Fuel Cell (PEMFC), Alkaline Fuel Cell (AFC), Phosphoric Acid Fuel Cell (PAFC), Molten Carbonate Fuel Cell (MCFC), and Solid Oxide Fuel Cell ... Hoogers, Fuel Cell Technology Handbook, CRC Press LLC, (2003) Chapter Polymer Electrolyte Membrane Fuel Cell (PEMFC) 2.1 Introduction Polymer Electrolyte Membrane Fuel Cell is also known as Polymer Electrolyte ... Polymer Electrolyte Fuel Cell (PEFC) or Solid Polymer Electrolyte Fuel Cell (SPEFC) or Proton Exchange Membrane Fuel Cell As indicated by the name, Polymer Electrolyte Membrane Fuel Cell utilized a...

Fabrication of cost effective and flexible polymer nanostructured substrate for bio and magnetic application

... Fabrication of Cost- effective and Flexible Polymer Nanostructured Substrate for Bio- and Magnetic Applications LI BIHAN B Eng (Hons.), NUS A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... Targets and Tested miRNAs 156 Appendix List of Publications 159 viii Summary This study focused on fabrication of cost- effective and flexible polymer nanostructured substrate for Bio- and ... growth and flexible magnetic device demonstrated the diverse applications of polymer materials and provided ground work for future studies x List of Tables Table 2.1 Comparison of different fabrication...

wet process-based fabrication of wo3 thin film for no2 detection

... Morphology of WO3 thin films Thin films of WO3 could be derived from the WO3 ·2H2 O sol added with PEG (2 wt.%) by one time spin coating and calcination at 300 ◦ C for h Fig shows SEM images of the thin ... films of WO3 for NO2 sensing, Sens Actuators B 95 (2003) 258 Conclusions Biographies An aqueous sol of WO3 ·2H2 O, added with PEG, could be applied successfully for fabricating a thin film of WO3 ... the crystals of WO3 ·2H2 O and that of WO3 : The basal plane (0 0) of WO3 ·2H2 O is converted into the basal plane (0 2) of WO3 [12] As shown by the cross-sectional view Fig 1c, the thin films were...

Báo cáo hóa học: " Design and Fabrication of Fiber-Optic Nanoprobes for Optical Sensing" pdf

... 19 Holland L: Vacuum Deposition of Thin Films Wiley, New York; 1956 doi:10.1007/s11671-010-9744-5 Cite this article as: Zhang et al.: Design and Fabrication of Fiber-Optic Nanoprobes for Optical ... nanoprobe fabrication A thin film of an optically opaque metal such as aluminum, silver, or gold is coated along the outside walls of the tapered optical fiber tip to form an optical light pipe free of ... gives reliable nanoprobes with well-defined nanoapertures of circular geometry, and the length of the optical fiber nanoprobes can be longer, which can make coupling of light into the optical fibers...

Development a new equation of polarization curve for a proton exchange membrane fuel cell at different channel geometry

... reaction at the surface of catalyst layers ● A new correlation for predicting the polarization curve of a PEM fuel cell according to cell temperature and the parameter of cross-section channel geometry ... (7) that in this equation current density is in A/ cm2, temperatures are in ºC and Z=1 for elliptical channel and Z=2 for triangular channel and Z=3 for rectangular channel that this parameter ... stack In this study the effect of changing the cross-section geometry of channels has been investigated experimentally and a new equation for polarization curve obtained that is a function of...

Design, fabrication and characterization of thin film materials for heterojunction silicon wafer solar cells

... integration into heterojunction silicon wafer solar cells and subsequently the modelling of heterojunction and hybrid heterojunction silicon wafer solar cells that utilize these films Three key ... monocrystalline/multicrystalline solar cells, thin- film solar cells, organic solar cells, tandem cells, concentrator cells and varying choice of materials such as silicon, gallium arsenide (GaAs), ... micro Raman spectroscopy analysis of doped silicon thin film layers and its feasibility for heterojunction silicon wafer solar cells , Journal of Materials Science and Chemical Engineering (2013)...

Organic phase fabrication of core shell materials for the encapsulation of biomolecules

... resulting in fabrication of novel core- shell materials The objective of this work is therefore to study and perform the organic phase fabrication of core- shell materials for encapsulation of biomolecules ... for organic phase fabrication of core- shell materials; 3) Organic phase fabrication of hydrogel core- shell materials; 4) Characterization of fabricated core- shell materials 5) Encapsulation of ... Objective The objective of this work is to perform and study the organic phase fabrication of core- shell materials for the encapsulation of biomolecules 3.2 Specific Aims To achieve the main objective...

Development of reduced models for proton exchange membrane fuel cells

... now 1.2 Types of Fuel Cells There are six types of fuel cells that are currently in commercial use, di¤erentiated according to the type of electrolyte: Proton Exchange Membrane Fuel Cell (PEMFC), ... Methanol Fuel Cell (DMFC), Alkaline Fuel Cell (AFC), 1.2 Types of Fuel Cells Phosphoric Acid Fuel Cell (PAFC), Molten Carbonate Fuel Cell (MCFC), Solid Oxide Fuel Cell (SOFC) The characteristics of fuel ... and water Introduction Figure 1.1: A schematic of a fuel cell 1.1 Advantages and Disadvantages of Fuel Cells One of the key advantages of fuel cells is that this technology convert chemical energy...

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Application of rapid prototyping technology to the fabrication of 3d chitosan scaffold for tissue engineering

... APPLICATION OF RAPID PROTOTYPING TECHNOLOGY TO THE FABRICATION OF 3D CHITOSAN SCAFFOLD FOR TISSUE ENGINEERING GENG LI (B.Eng (Hons)) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING ... shown that chitosan appears to be a suitable matrix material for tissue engineering applications 3.2.2 The Properties of Chitosan Chitosan is the product of the partial deacetylation of the naturally ... use in tissue engineering applications Keywords: Rapid Prototyping, 3D Scaffold, Tissue Engineering, Chitosan, Biocompatibility vi List of Figures List of Figures Figure 3.1 Structure of chitosan...

Design, modeling and fabrication of thermal actuated micromirror for fine tracking mechanism of high density optical data storage

... DESIGN, MODELING AND FABRICATION OF THERMAL ACTUATED MICROMIRROR FOR FINE- TRACKING MECHANISM OF HIGH- DENSITY OPTICAL DATA STORAGE DENG XIAOCHONG (B Eng., Huazhong Univ of Sci & Tech, ... micromirror for fine- tracking mechanism of high- density optical data storage International Journal of Computational Engineering Science, Vol 4, No 2, pp.413-416 2003 J P Yang, X C Deng and T C Chong ... 3-1: Fine- tracking optical disk drive 20 Fig 3-2: Schematic plot of thermal actuated micromirror as a fine tracking device in ODS 20 Fig 3-3: The structure of the thermal...

Novel design of a compacted micro-structured air-breathing PEM fuel cell as a power source for mobile phones

... performance and design of air-breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air-breathing ... of a passive planar air breathing fuel cell cathode J Power Sources 2007, 167(1), 118–129 [3] Rajani B.P.M and Kolar A. K A model for a vertical planar air breathing PEM fuel cell J Power Sources ... great role in the performance of air-breathing fuel cells However, these fuel cell designs have generally relied on traditional planar MEA architecture Because the majority of PEM fuel cell designs...

Báo cáo khoa học: "Clinical outcomes of stereotactic body radiotherapy for stage I non-small cell lung cancer using different doses depending on tumor size" ppsx

... doi:10.1186/1748-717X-5-81 Cite this article as: Baba et al.: Clinical outcomes of stereotactic body radiotherapy for stage I non-small cell lung cancer using different doses depending on tumor size Radiation Oncology ... S, Ogino H, Ito M: Estimation of errors associated with use of linear-quadratic formalism for evaluation of biologic equivalence between single and hypofractionated radiation doses: an in vitro ... phase I/ II study of 48 Gy of stereotactic body radiotherapy in fractions for primary lung cancer using a stereotactic body frame Int J Radiat Oncol Biol Phys 2005, 63:1427-1431 Onimaru R, Fujino...

Integrated platinum carbon nanotube based electrocatalyst for high efficiency proton exchange membrane fuel cells 1

... Suitable for all sizes of power stations, kW to multi-MW Table 1. 1 Main types of fuel cells and their characteristics and applications 1. 3 Proton Exchange Membrane Fuel Cells (PEMFCs) Proton Exchange ... 1- 1 to 1- 3 [2]: Anode: H2 2H+ + 2e- Cathode: 2H+ + 2e- + 1/ 2O2 Overall: H2 + 1/ 2O2 (1- 1) H2O H2O + electricity + heat (1- 2) (1- 3) According to Eq 1- 3, the electrochemical energy in hydrogen fuel ... on carbon black (CB) and carbon nanotube (CNT) as well as their diverse synthesis methods 1. 4 .1 Carbon Supported Pt Electrocatalysts for ORR Platinum has been used as the electrocatalyst for...

Integrated platinum carbon nanotube based electrocatalyst for high efficiency proton exchange membrane fuel cells 2

... most accurate and realistic information of the Pt/CNT -based electrocatalyst as a potential substitute for conventional Pt/VXC72Rbased electrocatalysts used for high- efficiency PEMFC applications ... VCXC72R Carbon paper TGPH090 Toray Carbon black (CB) VCXC72R Cabot Commercial Pt catalyst 40wt% Pt/VCXC72R Johnson Matthey Commercial Pt catalyst 20 wt% Pt/VCXC72R E-TEK Nafion membrane Nafion 1 12 ... A1093 (20 06) [22 ] S Mitsushima, S Kawahara, K I Ota, and N Kamiya, J Electrochem Soc 154, B153 (20 07) [23 ]D A Stevens, M T Hicks, G M Haugen, and J R Dahn, J Electrochem Soc 1 52, A2309 (20 05) [24 ]...

Integrated platinum carbon nanotube based electrocatalyst for high efficiency proton exchange membrane fuel cells 3

... (6vol%) and silane (1vol%) solution containing 0 .3 M Ni(NO3)2 and 0 .3 M Co(NO3)2 for h During the CNT growth, the carbon paper was heated at 600 °C for at 35 0 sccm Ar and 1.5 sccm H2 flow to obtain ... well as the carbon graphitization (see Fig 3. 2 (a)) On the other hand, at a high growth temperature of 800 °C, thermal pyrolysis of C2H4 would take place to form amorphous carbon before it dissolves ... the integrated CNT-grown carbon paper as a potential electrode component for PEMFC applications 3. 3.1 BET Surface Area of in situ Grown CNTs In this study, BET surface area measurement was performed...

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Từ khóa: fabrication of polyimide porous nanostructures for low k materials x3 1 dimensions of hand tight assembly for use with table x3 1 x3 2 dimensions of hand tight assembly for use with table x3 2 materials for proton exhange membrane fuel cells s rebello p v samant j l figueiredo and j b fernandes enhanced electrocatalytic activity of carbon supported mnox ru catalysts for methanol oxidation in fuel cells j power sources 153 2006 36 40 closed form solution of i v characteristic for a si h solar cells early market for proton exchange membrane fuel cells proceedings of the sixth international symposium on solid oxide fuel cells nhiên liệu màng trao đổi proton proton exchange membrane fuel cell pemfc proton exchange membrane fuel cell pin nhiên liệu màng trao đổi proton macroporous nanocomposite polymer electrolyte for lithiumion batteries solid polymer electrolyte for lithium ion battery methacrylate based gel polymer electrolyte for lithium ion batteries carbon anodes for solid polymer electrolyte lithiumion batteries gel polymer electrolyte membrane Nghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt nam Nghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoại Một số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTP Nghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THz Nghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt nam đề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giải Biện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọ Phát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninh Phát hiện xâm nhập dựa trên thuật toán k means Nghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùng Nghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chế Nghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000 Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Chuong 2 nhận dạng rui ro Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Trách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)Đổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt nam