2004•Chemical ResearchesRequires access
Electrochemical Synthesis of Nano-sized NiAl_2O_4 Precursor
Zhu Chuan-gao
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Abstract
The precursor NiAl_2(OCH_2CH_3)_((8-y))(acac)_y of the nano-oxide NiAl_2O_4 was prepared by electrochemical dissolution of nickel and aluminum (electricity quantity 1∶3) in ethanol solution. The products were characterized by FT-IR spectrum, XRD, TEM. The influences of temperature and concentration of conductive additive on product yield were also investigated. The experiments shows that the temperature controlled under 54～60℃ and concentration of Bu_4NBr between 0.040～0.045mol/L as conductive additive can enhance current efficiency to 93%, and the xerogel made from the precursor has a narrow size distribution of 10 nm around.