| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 | 19권 2호, p.1718 |
| 발표분야 | 에너지 |
| 제목 | Fabrication and evaluation of MEA with electrodes prepared by electrostatic spray deposition on membrane |
| 초록 | To achieve ultra low Pt loading and high Pt utilization, catalyst layers were prepared by electrostatic spray deposition (ESD) on membrane. ESD is a process that an aerosol of a solution is ejected from metal syringe nozzle with a high applied voltage to a thin film on the counter electrode. The catalyst ink containing Pt/C particles was successfully atomized and deposited under the applied electric field. Thus, the nanostructured fractal surface morphologies and a good porosity were obtained by using ESD method. As a result, the Pt/C and binding polymer agglomerates were deposited over the membrane. In this paper, the catalyst layer with Pt loading 0.07 mg/cm2 was deposited by ESD method. A good performance (1.0 A/cm2 at 0.5 V, 70 ℃ and 0.07 mgPt/cm2) was achieved by using ESD method. In the Pt loading 0.07 mg/cm2, a performance was increased by roughly 2 times compared with spraying method. This work was supported by the New & Renewable Energy of the Korea Insitute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20113010030030). |
| 저자 | 고범수, 이성철 |
| 소속 | 한양대 |
| 키워드 | fuel cell; electrospray; ESD |
| 원문파일 | 초록 보기 |
