Doped Bi-based oxides were investigated as potential anode materials for direct hydrocarbon solid oxide fuel cells ~SOFCs! at intermediate temperatures. (Bi2O3)0.85(Ta2O5)0.15 met this criterion most successfully. A fraction of Bi2O3 in this material was reduced to BiO and Bi metal under fuel conditions, which yielded high conductivities ~,1 S cm! based on oxide ions and electrons above 500°C. ...

Solid oxide fuel cells (SOFCs) are amongst the most widely used renewable alternative energy systems with near-zero carbon emission, high efficiency, and environment-friendly features. However, operating temperature of SOFCs is still considered a major challenge due to several issues regarding materials’ corrosion, unwanted reactions between layers, etc. Thus, low-temperature (LT-SOFCs) have ga...

In order to reduce the operating temperature of solid oxide fuel cells (SOFCs), anodesupported cells incorporating thin film (~10 μm) electrolytes in conjunction with anode/electrolyte and cathode/electrolyte interlayers were studied. Anode supported button cells were prepared through a conventional approach and were analyzed via Scanning Electron Microscopy (SEM), Polarization, and Electrochem...

Methods of mathematical modeling and numerical simulation of solid oxide fuel cells (SOFCs) are increasingly being used as tool to understand and optimize both, fundamental electrochemical properties and technological applications. The goal of modeling activities is to identify critical components and processes responsible for cell and system performance, lifetime and cost. We present a multi-s...

Most world country dependent on foreign oil to make things working, which means political disputes or any between countries can result in energy crunches. The negative changes that occur the global climate and environment due burning of fossil fuels, stimulate search for modern environmentally friendly sources production. In addition, continued concern about storage processing nuclear waste may...

developed lOkW class tubular SOFC modules for stationary power generation using Japanese town gas (13A) as fuel. A small module which consisted of 5 stacks (a stack consisted of 2 x 6 cells) generated 1.5kW at 0.2Alcm2 and achieved 55%-LHV efficiency at an average temperature of 900°C. A thermally self-sustaining module consisting of 20 stacks achieved 6.5kW at 0.2A/cm2 and 50%-LHV. relatively ...

Abstract LiCoO 2 , a widely used electrode material for Li-ion batteries, was found to be suitable as cathode proton-conducting solid oxide fuel cells (H-SOFCs). Although the evaporation of Li in detrimental battery performance, Li-evaporation beneficial H-SOFCs. The partial preparation procedure led in-situ formation +Co 3 O 4 composite. Compared cell using pure phase that only generated moder...

Abstract Solid-state electrochemistry (SSE) is an interdisciplinary field bridging and solid-state ionics deals primarily with the properties of solids that conduct ions in case ionic conducting solid electrolytes electrons and/or electron holes mixed electronic materials. However, devices such as oxide fuel cells (SOFCs), there are unique electrochemical features due to high operating temperat...