نتایج جستجو برای: sofc

تعداد نتایج: 1709  

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

استفاده بی رویه از ذخایر سوخت فسیلی (ذغال سنگ، نفت و گاز) برای تولید برق در دو قرن اخیر، موجب اتمام این منابع انرژی و افزایش آلاینده های زیست محیطی در جهان شده است به طوری که کشورهای مختلف برای انتخاب و تامین مناسب ترین فناوری های انرژی پاک، ارزان، کوچک و کارامد نسبت به منابع سوخت فسیلی و هسته ای، با چالش مواجهه شده اند. پیل سوختی اکسید جامد (sofc)، وسیله مناسبی برای تبدیل انرژی شیمیایی سوخت به...

2001
H. - J. Ziock

The Zero Emission Coal Alliance (ZECA) is developing an integrated zero emission process that will generate clean energy carriers (electricity or hydrogen) from coal. The process exothermically gasifies coal using hydrogen to produce a methane rich intermediate state. The methane is subsequently reformed using water and a CaO based sorbent. The sorbent supplies the energy needed to drive the re...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی مکانیک 1391

موتور استرلینگ به عنوان یک موتور احتراق خارجی، با راندمان نزدیک به راندمان کارنو، گزینه مناسبی جهت استفاده در سیستم های تولید توان با توزیع پراکنده می باشد. در این مطالعه ابتدا تحلیل های ترمودینامیکی مختلفی روی موتور استرلینگ انجام گرفته و سپس تاثیرات دمای منبع گرم، حجم محفظه انبساط، سرعت دورانی موتور، فشار متوسط سیکل و اختلاف فاز پیستون ها بررسی می گردد. با استفاده از روش شبکه عصبی، بهینه سازی...

Journal: :international journal of nano dimension 0
devi radhika department of chemistry, karunya university, coimbatore – 641 114, tamil nadu, india. a. samson nesaraj department of chemistry, karunya university, coimbatore – 641 114, tamil nadu, india.

a set of multicomponent perovskite oxide nanoparticles based on la1-xsrxco1-yfeyo3-δ(lscf) were prepared by a simple chemical precipitation method for application in low temperature solid oxide fuel cells (lt-sofc) as cathode materials.  the precursor materials used in this synthesis were lanthanum nitrate hexahydrate [la(no3)3.6h2o], strontium nitrate [sr(no3)2], cobalt nitrate hexahydrate [co...

Journal: :Journal of nanoscience and nanotechnology 2015
Young Mi Kim Ju-Hee Kang Min-Young Kim Bum Ho Choi Moo Sung Lee Ho-Sung Kim

Nanocrystallite ceria-doped scandia-stabilized zirconia (1Ce10ScSZ) powders are prepared using a combination of co-precipitation and hydrothermal treatments. Power density of 1.0 W cm(-2) is obtained at 1.6 A cm(-2) and 800 °C due to the drastic reduction of ohmic and polarization resistance in the SOFC cell.

Journal: :Physical chemistry chemical physics : PCCP 2012
Xiaxi Li Kevin Blinn Yingcui Fang Mingfei Liu Mahmoud A Mahmoud Shuang Cheng Lawrence A Bottomley Mostafa El-Sayed Meilin Liu

SERS provided by sputtered silver was employed to detect trace amounts of chemical species on SOFC electrodes. Considerable enhancement of Raman signal and lowered detection threshold were shown for coked nickel surfaces, CeO(2) coatings, and cathode materials (LSM and LSCF), suggesting a viable approach to probing electrode degradation and surface catalytic mechanism.

2006
Mogens Mogensen Søren Højgaard Jensen Anne Hauch Ib Chorkendorff Torben Jacobsen

It was shown about 25 years ago that solid oxide fuel cells (SOFC) could also work in the solid oxide electrolyser cell (SOEC) mode. Electrolysis of both water (steam) and CO2 was demonstrated. During the 1990'ies very little electrolysis work was reported in the open literature, whereas an enormous amount of results on the SOFC R&D appeared. Recently, the increasing interest in hydrogen produc...

Journal: :ECS transactions 2021

The unique and beneficial characteristics of solid oxide fuel cell (SOFC) technology hold much promise for their eventual widespread adoption in numerous commercial building applications. Nevertheless, cost durability challenges remain that currently limit SOFC penetration stationary energy Under the U.S. DOE ARPA-E INTEGRATE program, Colorado School Mines its partners are developing a novel hy...

Journal: :Energy Procedia 2012

Journal: :Processes 2023

A new strategy to reduce the operating temperature of solid oxide fuel cell (SOFC) is needed foster progress developing high-performance and stable SOFC as a solution thermal stress degradation components induced by high-temperature SOFC. The use lithium (Li) cathode can increase cell’s efficiency, it allows for faster ion transport higher reaction rate. This study presents an attractive approa...

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