| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
석유화학.윤활유_포스터 |
| 제목 |
Monodispersed Ni and Ni-Co nanoparticles capsulated with silica shell for enhanced stability of dry reforming of methane |
| 초록 |
For a dry reforming of methane (DRM), Ni-based catalysts have many disadvantages due to the thermal instability by a sintering of the supported Ni nanoparticles (NPs) to form less active aggregates at a high temperature as well as significant coke deposition compared to the precious-metals. In order to lessen these limitations, oxophilic Co NPs can be applied by preparing Ni-Co bimetallic catalysts not only for an enhanced activity but also sustained stability of the catalysts by suppressing the aggregations of Ni NPs and coke formations. However, due to an inherent limitation of the heterogeneity of supported active metals, the intrinsic roles of Co to Ni are still unclear. In this study, the model nano-reactor composed of the SiO2-encapsulated Ni NPs (Ni@SiO2) and bimetallic ones (Ni-Co@SiO2) were prepared, which was capable to retain the pristine particle size under a high temperature DRM reaction with stable catalytic activity. |
| 저자 |
박경수, NGUYEN THI XUAN, 배종욱
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| 소속 |
성균관대 |
| 키워드 |
Dry reforming of methane (DRM); Ni-Co nanoparticles; Bimetallic nanoparticles; Oxophilic cobalt; Silica coating; Coke deposition
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| E-Mail |
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