Comparative XPS study of Rh/Al2O3 and Rh/TiO2 as catalysts for NaBH4 hydrolysis
β Scribed by Y.V. Larichev; O.V. Netskina; O.V. Komova; V.I. Simagina
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 629 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0360-3199
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β¦ Synopsis
The catalysts Rh/Al 2 O 3 and Rh/TiO 2 for hydrogen production from NaBH 4 were prepared by deposition technique from RhCl 3 reduced by NaBH 4 and were studied by XPS and TEM. It was found that the RhCl 3 /Al 2 O 3 system is more stable comparing to RhCl 3 /TiO 2 which starts to decompose by weak heat treatment. It was shown that NaBH 4 reduced RhCl 3 /TiO 2 (Al 2 O 3 ) to supported metal Rh nanoparticles in both cases. In the case of Rh/TiO 2 SMSI effect it was found after RT reduction. The SMSI (Strong Metal-Support Interaction) effect gave an explanation for the difference of activity between Rh/TiO 2 and Rh/Al 2 O 3 catalysts in hydrolysis reaction of NaBH 4 .
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