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Nanorods of vanadium compounds: synthesis, characterisation, and application in electrochemical energy storage

chapter
posted on 01.01.2011, 00:00 authored by Alexey Glushenkov, M Hassan, D Hulicova-Jurcakova, Ying (Ian) ChenYing (Ian) Chen
The synthesis and characterisation of nanorods of vanadium pentoxide, V(2)O(5), vanadium trioxide, V(2)O(3), vanadium dioxide, VO(2)(B), and vanadium nitride, VN, are presented, and their application in electrochemical supercapacitors and lithium-ion batteries is outlined. Specifically, a novel method for the preparation of V(2)O(5) nanorods is discussed. It involves ball milling as a first step and controlled annealing as a second step. Nanorods of V(2)O(5) can be converted into those of other vanadium-related phases by simple chemical reduction treatments. Such chemical transformations are pseudomorphic and often topotactic, that is, the resulting nanorods belong to a different chemical phase but tend to retain the original morphology and preferential crystal orientation dictated by parent V(2)O(5) crystals.

The corresponding properties of nanorods for their prospective application in electrochemical energy storage (lithium-ion batteries and electrochemical supercapacitors) are discussed. The synthesised V(2)O(5) nanorods possess a stable cyclic behaviour when they are used in a cathode of a lithium-ion battery and are suitable for use in an anode. VN nanorods synthesised by NH(3) reduction of V(2)O(5) were found to possess pseudocapacitive properties in aqueous electrolytes.

History

Title of book

Nanotechnology in Australia : showcase of early career research

Chapter number

5

Pagination

151 - 187

Publisher

Pan Stanford

Place of publication

Singapore

ISBN-13

9789814310031

ISBN-10

9814310034

Language

eng

Publication classification

B1 Book chapter

Copyright notice

2011, Pan Stanford

Extent

12

Editor/Contributor(s)

D Kane, A Micolich, J Rabeau