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The influence of precursors on Rh/SBA-15 catalysts for N2O decomposition

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Abstract.
Series of Rh/SBA-15 catalysts were prepared by impregnation and grafting method applying different Rh
precursors. The catalytic behaviors of N2O decomposition over these catalysts were tested in an
automated eight flow reactor system. The catalysts were characterized by X-ray fluorescence
spectroscopy (XRF), X-ray diffraction (XRD), N2 adsorption/desorption, transmission electron microscopy
(TEM) and X-ray photoelectron spectroscopy (XPS) techniques. The results showed that the dispersion of
Rh species on the catalysts is closely related to the molecular size and the hydrophobic property of the
precursors comparing to the hydrophilic support, better dispersion results were found in catalysts by
impregnation of smaller precursors, while by grafting better dispersion resulted from big precursor. On
the other hand, the activities of the catalysts match well with the Rh dispersion status. Rh/SBA-15-CDCR
starting from [(CO)2RhCl]2 showed good dispersion and gave the best N2O decomposition activity.

Keywords: N2O decomposition, Rh/SBA-15, Precursors, Dispersion

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Informasi Detail

Judul Seri

Applied Catalysis B: Environmental

No. Panggil

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Penerbit

London : Elsevier B.V.., 2008

Deskripsi Fisik

Applied Catalysis B: Environmental 84 (2008) 490–496

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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