Synthesis of Mesostructured Nickel Oxide with Silica

Mesostructured nickel oxide was formed with nickel sulfate and cationic surfactant cetyltrimethylammonium bromide (CTAB). X-ray diffraction (XRD) peaks at low scattering angles and transmission electron microscopy (TEM) indicated that a mesostructure was formed. However, these XRD patterns disappear...

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Veröffentlicht in:Industrial & engineering chemistry research 2000-03, Vol.39 (3), p.684-692
Hauptverfasser: Liu, Xinghua, Chun, C.-M, Aksay, Ilhan A, Shih, Wei-Heng
Format: Artikel
Sprache:eng
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Zusammenfassung:Mesostructured nickel oxide was formed with nickel sulfate and cationic surfactant cetyltrimethylammonium bromide (CTAB). X-ray diffraction (XRD) peaks at low scattering angles and transmission electron microscopy (TEM) indicated that a mesostructure was formed. However, these XRD patterns disappeared after calcination. The addition of sodium silicate in the precursor solutions produced a mesostructure, which is stable against calcination. Surface areas as high as 530 m2/g can be obtained for the nickel silicate mesophase. TEM-EDXS showed that the Si/Ni molar ratio in the mesophase is ∼0.5, independent of the initial Si/Ni ratio in the precursor.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie990129l