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Preparation of selective surfaces of black cobalt by the sol-gel process

Author

Listed:
  • Barrera, E.C.
  • Viveros, T.G.
  • Morales, U.

Abstract

Black cobalt, Co3 O4, thin solid coatings on stainless steel and glass substrates have been prepared by the dip coating technique via the sol-gel route using a CoCl2 precursor. The coatings produced on substrates exhibit a blue to black colours as a function of the film thickness. Sols have been made from a cobalt acetate precursor 0.1 M, and for such conditions, the dip coating process gives 0.08–0.25 μm thick uniform films per dipping, depending on the viscocity of the sol.

Suggested Citation

  • Barrera, E.C. & Viveros, T.G. & Morales, U., 1996. "Preparation of selective surfaces of black cobalt by the sol-gel process," Renewable Energy, Elsevier, vol. 9(1), pages 733-736.
    • Handle: RePEc:eee:renene:v:9:y:1996:i:1:p:733-736
    DOI: 10.1016/0960-1481(96)88388-1
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    Cited by:

    1. Amri, Amun & Jiang, Zhong Tao & Pryor, Trevor & Yin, Chun-Yang & Djordjevic, Sinisa, 2014. "Developments in the synthesis of flat plate solar selective absorber materials via sol–gel methods: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 36(C), pages 316-328.

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