| Investigating the application of Fe,Co-N-C as the cathode of Single PEMFC |
| کد مقاله : 1118-17THECSI |
| نویسندگان |
|
میترا طیموری خبازی *1، سعید بنازاده اهری2، سید محمد سید باقری3، محمد ژیانی4، محمد محمدی تقی آبادی5، حسین غریبی2 1گروه شیمی - دانشکده علوم پایه - دانشگاه تربیت مدرس - تهران - ایران. 2ایران، تهران، دانشگاه تربیت مدرس، دانشکده علوم، گروه شیمی 3گروه شیمی - دانشکده علوم پایه- دانشگاه تربیت مدرس - تهران - ایران. 4گروه شیمی فیزیک، بخش شیمی، دانشکده علوم پایه، دانشگاه تربیت مدرس 5گروه شیمی فیزیک، دانشکده علوم پایه، دانشگاه تربیت مدرس، تهران، ایران |
| چکیده مقاله |
| Polymer electrolyte membrane fuel cells (PEMFC) are environmentally friendly energy converters that use hydrogen and oxygen to produce electricity. Recently this device has been considered a good substitution for fossil fuel combustion in various applications such as cars and backup powers. One challenge preventing these fuel cells from being commercialized is the sluggish oxygen reduction reaction (ORR), which takes place at the cathode side. The common electrocatalyst for this reaction is platinum-based and since platinum is a costly element and also rare to find, scientists are trying to find alternatives for them. Metal-organic frameworks are a type of microporous or mesoporous crystalline composite materials made of metal ions or metal clusters that are connected by organic linkers. For preparing a MOF-based electrocatalyst, the MOF precursor of this material must be pyrolyzed under high-temperature heat treatment. The porous crystal structure of MOF has unique and adjustable chemical properties and thus can act as an ORR non-precious metal electrocatalyst. In this work, a MOF-based ORR electrocatalyst (Fe,Co-N-C) has been synthesized and its performance in a single PEM fuel cell has been investigated. The Structure and morphology, and electrocatalytic performance of Fe,Co-N-C have examined via the Field Emission Scanning Electron Microscope (FESEM) images and fuel cell test station, respectively. The fully polyhedral structure of nanocrystals confirms the formation of Fe,Co-N-C. According to the IVW curve, the maximum power density of the catalyst was 266 mW/cm2, and the current density at 0.6 V was 255 mA/cm2. |
| کلیدواژه ها |
| Keywords: Cathode catalyst, Electrocatalyst, Metal-organic frameworks, Oxygen reduction reaction, Proton exchange membrane fuel cell. |
| وضعیت: چکیده برای ارائه شفاهی پذیرفته شده است |