Title of article
Cobalt-modified Brazilian bentonites: Preparation, characterisation, and thermal stability
Author/Authors
Cَtica، نويسنده , , L.F. and Freitas، نويسنده , , re V.F. dos Santos، نويسنده , , I.A. and Barabach، نويسنده , , M. and Anaissi، نويسنده , , F.J. and Miyahara، نويسنده , , R.Y. and Sarvezuk، نويسنده , , P.W.C.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
5
From page
187
To page
191
Abstract
The thermal effect on the phase evolution and crystallinity of raw and cobalt-modified Brazilian bentonites was investigated. The modified bentonites were prepared dispersing the bentonite particles in Co2+ hydroxide gels. The samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermal analyses and energy dispersive X-ray spectroscopy. An endothermic peak around 900 °C indicated the formation of olivine. A test with benzyl alcohol confirmed the catalytic activity as acidic catalyst for alcohol oxidation.
Keywords
thermal analysis , Co bentonite , Cobalt hydroxyl gels
Journal title
Applied Clay Science:an International Journal on the Application...
Serial Year
2011
Journal title
Applied Clay Science:an International Journal on the Application...
Record number
2223213
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