Ditapis dengan
Etching of the intermetallic compounds PdGa and Pd3Ga7: An effective way to i…
Abstract. The structurally ordered intermetallic compounds PdGa and Pd3Ga7 constitute highly selective catalysts for the selective semi-hydrogenation of acetylene. The milling of as-synthesized samples, followed by etching with ammonia solution increased the activity of the catalysts by factor of 60. Chemically etched samples possess high activity and simultaneously keep their high selectiv…
- Edisi
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- ISBN/ISSN
- 00219517
- Deskripsi Fisik
- Journal of Catalysis 264 (2009) 93–103
- Judul Seri
- Journal of Catalysis
- No. Panggil
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Palladium–gallium intermetallic compounds for the selective hydrogenation o…
Abstract. The structurally well-defined intermetallic compounds PdGa and Pd3Ga7 constitute suitable catalysts for the selective hydrogenation of acetylene. The surface properties of PdGa and Pd3Ga7 were characterized by X-ray photoelectron spectroscopy, ion scattering spectroscopy and CO chemisorption. Catalytic activity, selectivity and long-term stability of PdGa and Pd3Ga7 were investiga…
- Edisi
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- ISBN/ISSN
- 00219517
- Deskripsi Fisik
- Journal of Catalysis 258 (2008) 219–227
- Judul Seri
- Journal of Catalysis
- No. Panggil
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Palladium–gallium intermetallic compounds for the selective hydrogenation o…
Abstract. The intermetallic compounds PdGa and Pd3Ga7 are introduced as selective catalysts for the hydrogenation of acetylene. Single phase PdGa and Pd3Ga7 can readily be prepared by the appropriate thermal treatment of the stoichiometric mixtures of the corresponding elements. The initial low surface areas of the asprepared materials can be increased by careful mechanical treatment withou…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Journal of Catalysis 258 (2008) 210–218
- Judul Seri
- Journal of Catalysis
- No. Panggil
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Stability of bimetallic Pd–Zn catalysts for the steam reforming of methanol
Abstract. ZnO-supported palladium-based catalysts have been shown in recent years to be both active and selective towards the steam reforming of methanol, although they are still considered to be less active than traditional copper-based catalysts. The activity of PdZn catalysts can be significantly improved by supporting them on alumina. Here we show that the Pd/ZnO/Al2O3 catalysts have be…
- Edisi
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- ISBN/ISSN
- 00219517
- Deskripsi Fisik
- Journal of Catalysis 257 (2008) 64–70
- Judul Seri
- Journal of Catalysis
- No. Panggil
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Microstructural characterization of Cu/ZnO/Al2O3 catalysts for methanol steam…
Abstract. Microstructural characteristics of various real Cu/ZnO/Al2O3 catalysts for methanol steam reforming (MSR) were investigated by in situ X-ray diffraction (XRD), in situ X-ray absorption spectroscopy (XAS), temperature programmed reduction (TPR) and electron microscopy (TEM). Structure–activity correlations of binary Cu/ZnO model catalysts were compared to microstructural properti…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis A: General 348 (2008) 153–164
- Judul Seri
- Applied Catalysis A: General
- No. Panggil
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Reoxidation dynamics of highly dispersed VOx species supported on y-alumina
Abstract The VOx/y-Al2O3 catalyst VA-200, which was introduced in a previous article, is further characterized by XPS and visible Raman spectroscopy. The reoxidation of highly dispersed VOx species with gas phase oxygen is investigated in detail and is described by an empirical kinetic model. It is observed that the reoxidation of reduced VOx/y-Al2O3 catalyst is strongly affected by the pre…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis A: General 353 (2009) 288–295
- Judul Seri
- Applied Catalysis A: General
- No. Panggil
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