Search Results

You are looking at 41 - 50 of 70 items for :

  • "γ-Al-2O3" x
  • Refine by Access: All Content x
Clear All

the XRD patterns as a function of the calcination temperature of the AlMn ( Fig. 3a ), AlCo ( Fig. 3b ), and AlCr ( Fig. 3c ) samples. In the AlMn sample, an amorphous phase was observed up to 700 °C, and only at 800 °C, the γ-Al 2 O 3 phase was

Restricted access

Al(NO 3 ) 3 12 1,000 γ-Al 2 O 3 Citric acid 38 1,200 CA 2 , α-Al 2 O 3 , CA 6

Restricted access

r (°C) Reference γ-Al 2 O 3 Cu, Zn 350–500 [ 15

Restricted access
Reaction Kinetics, Mechanisms and Catalysis
Authors: Viorel Chihaia, Karl Sohlberg, Karl Sohlberg, and Niculae I. Ionescu

. 2. Caldararu , M , Postole , G , Hornoiu , C , Bratan , V , Dragan , M , Ionescu , NI 2001 Electrical conductivity of γ-Al 2 O 3 at atmospheric pressure under dehydrating/hydrating conditions . Appl Surf Sci

Restricted access

operational conditions employed, but also the nature of the catalyst used, has been shown to influence the catalytic performance. The widely used catalyst in industrial application today is γ-Al 2 O 3 , however, other catalysts have also been developed such as

Restricted access
Reaction Kinetics, Mechanisms and Catalysis
Authors: Viorel Chihaia, Karl Sohlberg, Monica Dan, Maria Mihet, Alexandru R. Biris, Petru Marginean, Valer Almasan, George Borodi, Fumiya Watanabe, Alexandru S. Biris, and Mihaela D. Lazar

. Alumina supported Ni catalysts (7 wt% Ni) modified with Ag (1 wt%) and Au (1 wt%) were prepared by co-impregnation of γ-Al 2 O 3 (Merck Germany, S tot = 135 m 2 /g) with aqueous solutions of Ni(NO 3 ) 2 + AgNO 3 and Ni(NO 3 ) 2 + HAuCl 4

Restricted access

appears to contain very sharp peaks at 2 θ of 14.4°, 28.2° and 38.4°, which corresponds to AlO(OH) in addition to a small amount of γ-Al 2 O 3 phase (peaks at 2 θ of 37.5°, 46.0° and 67.2°). When the support was calcined in air at 400 °C, the sharp

Restricted access
Journal of Thermal Analysis and Calorimetry
Authors: Hou-yin Zhao, Yan Cao, Zhi-zhong Kang, Yau-bang Wang, and Wei-ping Pan

Oxygen carrier preparation The substrate used in this experiment was commercial γ-Al 2 O 3 (Puralox NWa-155 Sasol Germany GmbH) with particle size of 100–300 μm, density of 1.3 g cm −3 , and a porosity of 55.4%. Copper nitrate from Acros (USA

Restricted access

that does not deactivate in methane oxidation [ 24 ]. These authors have used the wet impregnation technique, γ-Al 2 O 3 support and Pd(NH 3 ) 4 Cl 2 –H 2 O (Aldrich 32.343-8) as Pd precursor. The palladium loading was 2%. Fig. 1

Restricted access

mono-oxides (strongly disordered γ-Al 2 O 3 , α-Cr 2 O 3 phases with low crystallinity and CuO) bi-oxide phases, copper chromite spinel-like structure CuCr 2 O 4 [ 10 – 12 ] and Al 1.54 O 3 Cr 0.46 [ 13 ] were observed. The presence of the identified

Restricted access