| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2070 |
| 발표분야 |
에너지 |
| 제목 |
Promotion of Nano-sized Palladium to Enhance Carbon Tolerance of Ni |
| 초록 |
The deactivation resulting from carbon dissolution includes the breakage of the Ni–Ni conducting network as well as the formation of microscopic cracks within the Ni-YSZ material. The microstructure of the Ni-YSZ cermet exposed to methane at 750 °C was investigated using a dual beam focused ion beam scanning electron microscopy (FIB-SEM) system and the deactivation process within the cermet was confirmed in the reconstructed microstructure prepared by FIB-SEM. Furthermore, promotion of precious metal nanoparticles (NPs) on the Ni-YSZ cermet was studied to improve the carbon tolerance of Ni. We prepared M-NPs (M = Pd) using a novel method, so-called a physical vapor deposition on powder (PVDP) and introduced them into Ni-YSZ cermets. We demonstrated that promotion of precious metal NPs effectively alleviated carbon deposition in Ni-YSZ anodes and these results were consistent with molecular insights obtained in the DFT calculations. |
| 저자 |
김용민, 서정은, 고정은, 여신영, 장준규, 윤창원, 남석우
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| 소속 |
KIST |
| 키워드 |
탄소 침적; 나노 입자; 고체산화물연료전지; 니켈 촉매
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| E-Mail |
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| 원문파일 |
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