Preparation of Alumite Support and Preliminary Activity Investigation for NO Removal in SCR-HC over Alumite Catalyst.

Promotional Effect of Titanium on the Catalytic Performance of Anodic Alumina Supported Silver Catalyst for the Selective Reduction of NO with Propene

“…The plate was then washed, dried naturally, and calcined at 350°C to remove residual oxalic acid. Subsequently, hot water treatment in deionized water at 80°C was conducted for 1 h. The resulting plate was calcined in air at 500°C for 3 h to obtain an anodic γ-alumina support (Guo et al, 2003). Using the plate-type support, the anodic alumina supported Ag/Ti catalyst was prepared by the two-stage impregnation method using aqueous solutions of (NH 4 ) 2 TiO(C 2 O 4 ) 2 and AgNO 3 , respectively, where Ti was supported in advance of Ag.…”

“…Porous alumina film can be formed on the surface of Al plate by anodization. Hot water treatment and subsequent calcination greatly increase its surface area, making it comparable to even some types of commercial bead alumina (Guo et al, 2003). Since the alumina layer is derived from the base material, a close uniformity throughout the alumina layers can effectively prevent the mismatch in thermal expansion.…”

Anodic Alumina Catalyst Support with High Heat-Resistance for Hydrocarbon Steam Reformers

“…That is, they played a role of buffer in the process of the expansion and shrink of the alumite support. Guo et al (2003) investigated in detail the effect of the hydration treatment (i.e., HWT) using a conventional alumite catalyst support. They stated that in the HWT treatment the alumina layer quickly reacted with hot water to form hydrated alumina accompanying with a remarkable increase in volume.…”

“…Porous alumina film can be formed on the surface of Al plate by anodization. Hot water treatment and subsequent calcination transform the surface part of the amorphous skeleton alumina into γ-alumina, and greatly increase its surface area (Guo et al, 2003). The alumina film comes from the surface of the base Al material, and part of Al (hundreds of É m) still remains in the interlayer of the catalyst.…”

Steam Methane Reforming Using an Anodic Alumina Supported Nickel Catalyst (Ni/Al2O3/Alloy): Analysis of Catalyst Deactivation

“…Porous alumina film can be formed on the surface of Al plate by anodization. Hot water treatment and subsequent calcination greatly increase its surface area (Guo et al, 2003). Since the alumina layer is derived from the base material, a close uniformity between the alumina layer and its inside can effectively prevent the mismatch in thermal expansion.…”