Electrodeposition and structural characterization of MCrO3 (M = La, Pr, Nd, Gd, Dy and Y) perovskite oxide coatings on stainless steel substrates

Kiran, GK (2021) Electrodeposition and structural characterization of MCrO3 (M = La, Pr, Nd, Gd, Dy and Y) perovskite oxide coatings on stainless steel substrates. In: Materials Chemistry and Physics, 267 .

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Abstract

One of the significant challenges of the effective use of functional oxide materials in device applications is to obtain them in the form of thin films or thick coatings. In this work, we show cathodic electrodeposition technique as a cost effective method for fabrication of perovskite chromite coatings. Amorphous precursor hydroxide coatings of M (M = La, Pr, Nd, Gd, Dy, Y) and Cr were co-deposited on stainless steel electrode by cathodic electrodeposition from a nitrate bath. These precursor coatings were further heat treated to obtain MCrO3 perovskite oxide coatings. Heat treatment of La�Cr hydroxide precursor coatings at 600 °C and 800 °C resulted in coatings of La2CrO6 and LaCrO3 phases respectively. The other M�Cr hydroxides on heating at 800 °C for 2 h formed respective single phase MCrO3 perovskite coatings. Interestingly, the SEM images of heat treated perovskite coatings show different morphologies with varying M in MCrO3 (M = La, Pr, Nd, Gd, Dy and Y). © 2021 Elsevier B.V.

Item Type:	Journal Article
Publication:	Materials Chemistry and Physics
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Keywords:	Chromium compounds; Cost effectiveness; Electrodeposition; Electrodes; Lanthanum compounds; Nitrates; Oxide films; Perovskite; Protective coatings, Cathodic electrodeposition; Device application; Functional oxides; Nitrate reduction; Oxide coating; Oxide materials; Perovskite coatings; Perovskite oxides; Stainless steel substrates; Structural characterization, Stainless steel
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	03 Aug 2021 06:20
Last Modified:	03 Aug 2021 06:20
URI:	http://eprints.iisc.ac.in/id/eprint/68911

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