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In-situ Stabilization of Tin Nanoparticles in Porous Carbon Matrix derived from Metal Organic Framework: High Capacity and High Rate Capability Anodes for Lithium-ion Batteries

Shiva, Konda and Jayaramulu, Kolleboyina and Rajendra, HB and Kumar Maji, Tapas and Bhattacharyya, Aninda J (2014) In-situ Stabilization of Tin Nanoparticles in Porous Carbon Matrix derived from Metal Organic Framework: High Capacity and High Rate Capability Anodes for Lithium-ion Batteries. In: ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 640 (6, SI). pp. 1115-1118.

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Official URL: http://dx.doi.org/10.1002/zaac.201300621

Abstract

It is a formidable challenge to arrange tin nanoparticles in a porous matrix for the achievement of high specific capacity and current rate capability anode for lithium-ion batteries. This article discusses a simple and novel synthesis of arranging tin nanoparticles with carbon in a porous configuration for application as anode in lithium-ion batteries. Direct carbonization of synthesized three-dimensional Sn-based MOF: K2Sn2(1,4-bdc)(3)](H2O) (1) (bdc = benzenedicarboxylate) resulted in stabilization of tin nanoparticles in a porous carbon matrix (abbreviated as Sn@C). Sn@C exhibited remarkably high electrochemical lithium stability (tested over 100 charge and discharge cycles) and high specific capacities over a wide range of operating currents (0.2-5 Ag-1). The novel synthesis strategy to obtain Sn@C from a single precursor as discussed herein provides an optimal combination of particle size and dispersion for buffering severe volume changes due to Li-Sn alloying reaction and provides fast pathways for lithium and electron transport.

Item Type: Journal Article
Additional Information: copyright for this article belongs to WILEY-V C H VERLAG GMBH, BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
Keywords: Sn@C; Metal-organic frameworks; Anode materials; Specific capacity; Rate capability; Lithium-ion battery
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 27 Jun 2014 05:16
Last Modified: 27 Jun 2014 05:16
URI: http://eprints.iisc.ac.in/id/eprint/49384

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