The research and development with sodium ion batteries has geared up manifold in last one decade, owing to their abundance, non-toxicity, uniform geographical distribution and electrochemical performance complimentary to lithium counterpart. This research often leads to various novel material discoveries such as Na2Fe2(SO4)3 sodium insertion material, which has recently registered the highest-ever Fe3+/Fe2+ redox potential (3.8 V vs. Na) having excellent cyclability and rate kinetics. This basically belongs to a family of materials-Alluaudites Na2M2(SO4)3 (M: Fe, Mn, Co, Ni). Such cathode insertion compounds are basically functional materials, involving redox active 3d transition metals that are often magnetic in nature. We have investigated the magnetic structure and properties of - Alluaudites Na2M2(SO4)3. These alluaudite shows wide structural diversity and polymorphism. Employing various experimental methods involving diffraction, magnetic susceptibility, Mössbauer spectroscopy and low temperature neutron powder diffraction data we have explored the magnetic properties exhibited by the Alluaudite class of insertion materials.
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19 May 2017
DAE SOLID STATE PHYSICS SYMPOSIUM 2016
26–30 December 2016
Bhubaneswar, Odisha, India
Research Article|
May 19 2017
Alluaudite class of high voltage sodium insertion materials: An interplay of polymorphism and magnetism
Debasmita Dwibedi;
Debasmita Dwibedi
*
Faraday Materials Laboratory,
Materials Research Centre
, Indian Institute of Science
, Bangalore, 560012, India
Search for other works by this author on:
Prabeer Barpanda
Prabeer Barpanda
Faraday Materials Laboratory,
Materials Research Centre
, Indian Institute of Science
, Bangalore, 560012, India
Search for other works by this author on:
*
Email: [email protected]
AIP Conf. Proc. 1832, 130041 (2017)
Citation
Debasmita Dwibedi, Prabeer Barpanda; Alluaudite class of high voltage sodium insertion materials: An interplay of polymorphism and magnetism. AIP Conf. Proc. 19 May 2017; 1832 (1): 130041. https://doi.org/10.1063/1.4980761
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