| 학회 | 한국화학공학회 |
| 학술대회 | 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 | 24권 1호, p.703 |
| 발표분야 | 재료 |
| 제목 | Chracteristics of Sr0.92Y0.08Ti1-yNiyO3-δ anode and Ni-infiltrated Sr0.92Y0.08TiO3-δ anode using CH4 fuel in Solid Oxide Fuel Cells |
| 초록 | Strontium titanium oxide co-doped with yttrium and nickel (SrxY1-xTiyNi1-yO3-δ, SYTN) was investigated as an alternative anode material for solid oxide fuel cells. To improve the ionic conductivity of the Sr0.92Y0.08TiO3-δ(SYT) anode, Ni2+ was substituted into the B-site (initially occupied by Ti4+), thereby forming oxygen vacancies. To analyze the effects of Ni-doping in the SYT anode, the electrochemical properties of the SYTN anode were compared with those of the Ni-infiltrated SYT(Ni@SYT) using H2 and CH4 as fuels. The electrochemical reactions at the SYTN anode in the presence of both H2 and CH4 were limited by relatively slow reactions, such as non-charged processes including oxygen surface exchange and solid surface diffusion. The high electrical conductivity and excellent catalytic activity of the Ni nanoparticles in the Ni@SYT anode led to improved cell performance. CH4 decomposition at the Ni@SYT anode occurred via thermal pyrolysis of CH4 raher than by steam methane reforming, resulting in carbon deposition. Keyword : Solid oxide fuel cell, infiltration method, SYTN, carbon deposition, alternative anode |
| 저자 | 김준호, 박은경, 윤정우 |
| 소속 | 전남대 |
| 키워드 | 화공소재 전반 |
| 원문파일 | 초록 보기 |
