| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자가공/복합재료-자가치유 고분자와 복합소재 |
| 제목 |
Complete magnesiothermic reduction reaction of vertically aligned mesoporous silica channels to form pure silicon nanoparticles |
| 초록 |
Owing to its simplicity and low temperature conditions, magnesiothermic reduction of silica is one of the most powerful methods for producing silicon nanostructures. However, incomplete reduction takes place in this process leaving unconverted silica under the silicon layer. This phenomenon limits the use of this method for the rational design of silicon structures. In this effort, a technique that enables complete magnesiothermic reduction of silica to form silicon has been developed. The procedure involves magnesium promoted reduction of vertically oriented mesoporous silica channels on reduced graphene oxides sheets. The mesopores play a significant role in effectively enabling magnesium gas to interact with silica. Utilizing this approach, highly uniform silicon nanoparitcles are generated without unreacted silica. The new method for complete magnesiothermic reduction of mesoporous silica approach provides a foundation for the rational design of silicon structures. |
| 저자 |
김경환, 이동진, 조경민, 박정기, 정희태
|
| 소속 |
KAIST |
| 키워드 |
magnesiothermic reduction; silicon nanoparticle; mesoporous silica; graphene-silicon composite; silicon electrode
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| E-Mail |
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