| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.921 |
| 발표분야 |
재료 |
| 제목 |
Mesoporous, 2D Hexagonal Carbon Nitride and Titanium Nitride/Carbon composites |
| 초록 |
Amesoporous carbon nitride and titanium nitride/carbon composite with 2D hexagonal symmetry was synthesized using SBA-15ht as template. The first nanocasting stepyield a carbon nitride replica as array of C3N4 nanorods, with a lattice distance reflecting that of the SBA-15ht template but with a considerable shrinkage in diameter compared to the size of the cylindrical pores of the silica. In a second nanocasting step, this carbon nitride was used as “reactive template”. Filling of the carbon nitride with a solution of a titania precursorfirst introduced a mesostructure into the formed amorphous titania. During heating the carbon nitride secondly act as nitrogen source and converts the titania into titanium nitride, with some residual carbon supporting the structure. Thus, combining multiple and reactive templating a titanium nitride/carbon composite was prepared, exhibiting a mesostructure which, beside some shrinkage, forms a copy of the original silica template used, namely SBA-15. The so prepared titanium nitride/carbon exhibits cylindrical pores with a diameter of 7.3 nm arranged in a 2D hexagonal fashion and a surface area of 438.9 m2/g. |
| 저자 |
전영시1, 홍원희1, Markus Antonietti2, Arne Thomas2
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| 소속 |
1KAIST 생명화학공학과, 2Max-Planck-Institute of Colloids and Interfaces |
| 키워드 |
Mesoporous Silica; SBA-15; Metal Nitride; Templating; Carbon Nitride
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| E-Mail |
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| 원문파일 |
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