The NiAl mixed oxides: The relation between basicity and SO2 removal capacity
MetadataShow full item record
A series of NiAl mixed oxides derived from hydrotalcite-like compounds were prepared by a urea hydrolysis method, and characterized by TGA, XRD, SEM, CO2-TPD, N2 adsorption/desorption and XPS techniques. The SO2 adsorption capacity of the materials correlated closely with their basicity and active oxygen species on the surface, as estimated by a volumetric method. The NiAl mixed oxide with the optimal Ni/Al molar ratio of 3 showed the best performance of SO2 adsorption. Moreover, its adsorption equilibrium of a type I isotherm and pore opening in the quasi-micropore region significantly improve the adsorption performance for low-concentration SO2.
Showing items related by title, author, creator and subject.
Effects of surface features on sulfur dioxide adsorption on calcined NiAl hydrotalcite-like compoundsZhao, L.; Li, Xin Yong; Quan, X.; Chen, G. (2011)The hydrotalcite-based NiAl mixed oxides were synthesized by coprecipitation and urea hydrolysis approaches and employed for SO2 removal. The samples were well characterized by inductively coupled plasma (ICP) elemental ...
SO 2 adsorption and transformation on calcined NiAl hydrotalcite-like compounds surfaces: An in situ FTIR and DFT studyZhao, L.; Li, Xin Yong; Hao, C.; Raston, C. (2012)Flower-like hydrotalcite-based NiAl mixed oxides with high surface area were synthesized by urea hydrolysis approach, and employed for SO 2 removal. The catalyst was well characterized by TGA, ICP, XRD, SEM, TEM and N 2 ...
A comprehensive evaluation of a Ni-Al2O3 catalyst as a functional layer of solid-oxide fuel cell anodeWang, W.; Su, C.; Wu, Y.; Ran, R.; Shao, Zongping (2010)An inexpensive 7 wt.% Ni-Al2O3 composite is synthesized by a glycine-nitrate process and systematically investigated as anode catalyst layer of solid-oxide fuel cells operating on methane fuel by examining its catalytic ...