An in situ carbon-grafted alkaline iron electrode for iron-based accumulators

Rajan, Aravamuthan Sundar and Sampath, Srinivasan and Shukla, Ashok Kumar (2014) An in situ carbon-grafted alkaline iron electrode for iron-based accumulators. In: ENERGY & ENVIRONMENTAL SCIENCE, 7 (3). pp. 1110-1116.

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Abstract

An in situ carbon-grafted alkaline iron electrode prepared from the active material obtained by decomposing the alpha-FeC2O4 center dot 2H(2)O-polyvinyl alcohol (PVA) composite at 600 degrees C in a vacuum is reported. The active material comprises a mixture of a-Fe and Fe3O4 with the former as the prominent component. A specific discharge capacity in excess of 400 mA h g(-1) at a current density of 100 mA g(-1) is obtained with a faradaic efficiency of 80% for the iron electrode made from carbon-grafted active material (CGAM). The enhanced performance of the alkaline iron electrode is attributed to the increased amount of metallic iron in the active material and its concomitant in situ carbon grafting.

Item Type:	Journal Article
Publication:	ENERGY & ENVIRONMENTAL SCIENCE
Publisher:	ROYAL SOC CHEMISTRY
Additional Information:	Copyright for this article belongs to the ROYAL SOC CHEMISTRY, ENGLAND
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	16 May 2014 12:14
Last Modified:	16 May 2014 12:14
URI:	http://eprints.iisc.ac.in/id/eprint/49047

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