| Autor: |
Jianhua Zhou, Jianping He, Tao Wang, Dun Sun, Guiwang Zhao, Xiu Chen, Daojun Wang, Zhiyong Di |
| Zdroj: |
Journal of Materials Chemistry; Nov2008, Vol. 18 Issue 47, p5776-5781, 6p |
| Abstrakt: |
This work aims at enhancing metal-loading property of ordered mesoporous carbon (OMC) by a NiCl2assisted synthesis. OMC containing Ni nanoparticles within the mesostructure has been synthesized using NiCl2instead of HCl, which acts as a catalyst for the hydrolysis of tetraethyl orthosilicate (TEOS). The regularity of OMC is preserved. It also generates a binary catalyst comprised of these metallic Ni and microwave-reduced Pt nanoparticles. Electrochemical hydrogen adsorption/desorption has shown that electrochemically active surface area of Pt/OMC-NiCl2(15%) (78.5 m2g−1) is three times greater than that of Pt/OMC-NiCl2(2%). Methanol electro-oxidation was used as a test reaction to evaluate the catalytic activity. It can easily yield a higher mass activity when the initial Ni content is around 10–15%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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