Ditapis dengan
Understanding the nature of surface nitrates in BaO/γ -Al2O3 NOx storage mat…
Abstract. A combined experimental-theory approach was applied to unambiguously determine the nature of “surface nitrates” in BaO/γ -Al2O3 NOx storage materials. High resolution scanning transmission electron microscopy images reveal that at a low BaO coverage of 2 wt% on γ -Al2O3 monomeric BaO units are present almost exclusively. These molecularly dispersed BaO units are concentrated…
- Edisi
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- ISBN/ISSN
- 00219517
- Deskripsi Fisik
- Journal of Catalysis 261 (2009) 17–22
- Judul Seri
- Journal of Catalysis
- No. Panggil
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Excellent sulfur resistance of Pt/BaO/CeO2 lean NOx trap catalysts
Abstract. In this work, we investigated the NOx storage behavior of Pt/BaO/CeO2 catalysts, especially in the presence of SO2. High surface area CeO2 (110 m2/g) with a rod like morphology was synthesized and used as a support. The Pt/BaO/CeO2 sample demonstrated slightly higher NOx uptake in the entire temperature range studied compared with Pt/BaO/g-Al2O3. More importantly, this ceria-base…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis B: Environmental 84 (2008) 545–551
- Judul Seri
- Applied Catalysis B: Environmental
- No. Panggil
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Metallic phases of cobalt-based catalysts in ethanol steam reforming: The eff…
Abstract. The catalytic activity of cobalt in the production of hydrogen via ethanol steam reforming has been investigated in its relation to the crystalline structure of metallic cobalt. At a reaction temperature of 350 8C, the specific hydrogen production rates show that hexagonal close-packed (hcp) cobalt possesses higher activity than face-centered cubic (fcc) cobalt. However, at typica…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis A: General 355 (2009) 69–77
- Judul Seri
- Applied Catalysis A: General
- No. Panggil
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