| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.1323 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Synthesis and Characterization of Binary Al2O3-ZrO2 Mixed Oxides with Different Al/Zr Molar Ratio |
| 초록 |
A series of Al2O3-ZrO2 composite oxides with different Al/Zr molar ratio were synthesized using co-precipitation method with aluminum nitrate and zirconyl nitrate hydrate as starting materials. Mixed Al2O3-ZrO2 (xAl-yZr) was characterized by XRD, TG-DTA, FT-IR, SEM-EDX, XPS. The major phases of the composites were tetragonal ZrO2 and -Al2O3 although monoclinic ZrO2 phase also was detected as a minor phase even after calcination at 900oC. As compared with pure ZrO2, the BET surface area, total pore volume, the surface OH radical and thermal stability increased with increasing the Al/Zr mole ratio. The increase of Al2O3 in Al2O3-ZrO2 mixed oxide led to retard the particle growth of zirconia and the phase transformation from tetragonal to monoclinic phase. For the catalytic evaluation of Pt/Al2O3, Pt/ZrO2 and Pt/Al2O3-ZrO2 prepared by impregnation method CO oxidation was performed. |
| 저자 |
박정현1, 김성연2, 신채호1, 정광덕3, 주오심3
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| 소속 |
1충북대, 2한국 양봉기술원, 3KIST 청정에너지연구센터 |
| 키워드 |
Al2O3-ZrO2; CO oxidation
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| E-Mail |
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| 원문파일 |
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