A. Aman, R. Gentile, Y. Chen, X. Huang, Y. Xu, N. Orlovskaya
Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL, USA
Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA
Solid oxide fuel cells (SOFCs) are electrochemical conversion devices that utilize ceramics as their electrolyte material for oxygen conduction. Compared to other types of fuel cells, they operate at relatively high temperatures, typically 400°C to 1000°C, and have an electrical efficiency over 50% and combined heat and power efficiency over 80%. One way to improve cell performance is to use ...
A. Giaccherini , E. Berretti , S. Martinuzzi , S. Caporali ,
 INSTM, Firenze, Italy
 Department of Chemistry, University of Florence, Firenze, Italy
This work is a first evaluation of the validity of the frozen rotor approximation for the simulation of a stirred beaker. The agreement is good, further analysis will be carried before using the model to optimize labscale setup dedicated to IL electrochemistry.
Modeling and Simulation of Transient SECM (Scanning ElectroChemical Microscopy) Response of Porous Electrodes
L. Balboa , G. Wittstock ,
 Institute of Chemistry, Carl v. Ossietzky Universität Oldenburg, Oldenburg, Germany
In the past two decades, highly porous nanostructured materials have been investigated and used for a large variety of applications, such as catalysis, energy conversion/storage, optics, sensing and more. Nanoporous gold (npAu) is one of such materials which have shown great potential as an electro-catalyst due to not only its physical properties but its surface chemistry as well. It presents a ...
Y. Parikh, V. Penmatsa, J. Yang, and C. Wang
Department of Mechanical & Material Science Engineering, Florida International University, Miami, FL, USA
An Enzymatic Biofuel Cell (EBFC) converts the chemical energy in biological fuels into electricity. In this work, we optimize the performance of the Carbon-Micro Electro Mechanical system in an EBFC by using COMSOL Multiphysics. With a simple model, we realized that most of the glucose reacts with enzymes at the top of the electrode posts, while the bottoms of the posts remain deficient of the ...
R. Pushpangadan, A. Soman, Arundas R., N. G. Thoppan, S. P. Duttagupta
Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
College of Engineering, Munnar, Kerala, India
PEM fuel cells are very promising for portable applications. A key component of fuel cell is the flow field plate through which hydrogen will reach the anode, oxygen will reach the cathode and electron collection. Flow field plate made of silicon is not a good electrical conductor , so electrical contacts has to be attached to the Gas Diffusion Layer (GDL) for taking the power to outside ...
O. Ighodaro, K. Scott
Newcastle University, Newcastle upon Tyne, United Kingdom
Solid oxide fuel cells (SOFCs) are expected to play a major role in future energy systems due to their wide range of applications, high energy efficiency, environmental friendliness and good fuel flexibility. While conventional high temperature SOFCs operate at about 1000C, there is growing interest in intermediate temperature SOFCs which operates between 600C and 800C allowing for wider range ...
E. Ruiz-Reina , F. Carrique , A.V. Delgado , M.M. Fernández ,
 Department of Applied Physics II, University of Málaga, Málaga, Spain
 Department of Applied Physics I, University of Málaga, Málaga, Spain
 Department of Applied Physics, University of Granada, Granada, Spain
Capacitive energy extraction based on double layer expansion (CDLE) is a new method devised for extracting energy from the exchange of fresh and salty water in porous electrodes. First suggested by D. Brogioli, it is enclosed in a group of emergent technologies jointly known as Capmix methods. The CDLE technique is based on the fact that the capacitance of the electric double layer (EDL) ...
D. Mi ,
 KEISOKU Engineering System Co., Ltd., Chiyoda-ku, Tokyo, Japan
Optimization of a typical electrochemical system with insulating shields is considered in this work, which objective is to reduce the current peak due to singularity and smooth the current density distribution along electrode surface. Moving mesh method was adopted to allow change in design variables, i.e., position and width of the insulating shields. It was found that combining optimization ...
E. Amores, J. Rodriguez Ruiz, C. Merino Rodríguez, and P. García Escribano
Centro Nacional del Hidrógeno
The production of hydrogen from renewable energy surplus is seen as a key strategy for energy storage. Centro Nacional del Hidrógeno works actively in this direction by considering a strategic line in order to achieve a sustainable energy future. Alkaline electrolysis is the main industrial way of obtaining hydrogen by electrolysis. However, commercial alkaline electrolyzers are designed for ...
向斌 , 江露 , 周洋 , 王佳宁 
引言：钢结构设备的防腐保护主要采用阴极保护和涂层保护。其中，涂层保护除了防腐同时具备防红外、降温等特殊性能。 此次模拟，通过 COMSOL Multiphysics® 模拟设备在裸钢和 SiO2@ATO 涂层状态下的表面电位分布，证实了 SiO2@ATO 涂层的防腐性和抗红外及降温性能，并验证了 COMSOL Multiphysics® 数值模拟碳钢腐蚀表面电位分布的可靠性。 模拟过程中，假设电解质电导率为常数，阳极的各参数（尺寸、成分、分布等）保持不变。 计算方法：使用“二次电流分布”接口描述电极反应，“稀物质传递”接口描述亚铁离子输运，采用瞬态研究。参数： 1）温度 T； 2）电解质电导率 σ； 3）阴、阳极平衡电位 E_a、E_c； 4）阴、阳极交换电流密度 i0_c、i0_a； 5）传递系数 α 和 β； 6）初始时刻的亚铁离子浓度； 7 ...