Soft chemical deintercalation of silver from delafossites AgFeO2, and AgCrO2

Tomar, N and Nagarajan, R and Shivakumara, C (2020) Soft chemical deintercalation of silver from delafossites AgFeO2, and AgCrO2. In: Solid State Sciences, 108 .

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Abstract

Selective deintercalation of Ag+-ion from AgFeO2 and AgCrO2 with the use of dilute aqueous solutions of NH4Cl was achieved successfully. Based on the ICP analysis, the Ag: Fe and Ag: Cr ratios were 0.9:1 and 0.87:1 in the deintercalated sample of AgFeO2 and AgCrO2, respectively. Retention of both structure and the polytypes were noticed after deintercalation together with the reduction in their unit cell c-axis. Raman spectra of deintercalated samples confirmed the preservation of overall symmetry. XPS results confirmed the existence of Fe (III) and Cr (III) in the Ag+-ion deintercalated samples. © 2020 Elsevier Masson SAS

Item Type:	Journal Article
Publication:	Solid State Sciences
Publisher:	Elsevier Masson SAS
Additional Information:	The copyright of this article belongs to Elsevier Masson SAS
Keywords:	Chlorine compounds; Chromium compounds; Iron compounds; Silver, Deintercalation; Delafossites; Dilute aqueous solution; ICP analysis; Polytypes; Soft chemicals; Unit cells, Silver compounds
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	31 Aug 2020 07:47
Last Modified:	31 Aug 2020 07:47
URI:	http://eprints.iisc.ac.in/id/eprint/66412

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