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Mesoporous Ni–Al composite oxides (NixAl, x = 0.05, 0.1, 0.125, 0.25, 0.5) with different Ni/Al molar ratio have been successfully prepared by partial hydrolysis of aqueous solution of Al(NO3)3 and Ni(NO3)2 with (NH4)2CO3 solution without templates or organic surfactants. The samples exhibit a wormhole-like mesoporous structures with large specific surface areas of 105–213 m2/g and narrow pore size...
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