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Nanorods of vanadium compounds: synthesis, characterisation, and application in electrochemical energy storage
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posted on 2011-01-01, 00:00 authored by Alexey Glushenkov, M Hassan, D Hulicova-Jurcakova, Ying (Ian) ChenYing (Ian) ChenThe 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.
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 researchChapter number
5Pagination
151 - 187Publisher
Pan StanfordPlace of publication
SingaporeISBN-13
9789814310031ISBN-10
9814310034Language
engPublication classification
B1 Book chapterCopyright notice
2011, Pan StanfordExtent
12Editor/Contributor(s)
D Kane, A Micolich, J RabeauUsage metrics
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No categories selectedKeywords
Science & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryScience & Technology - Other TopicsMaterials ScienceLITHIUM-ION BATTERIESNEGATIVE-ELECTRODE MATERIALSNANOCRYSTALLINE VNHYDROTHERMAL SYNTHESISSURFACE-AREAVO2 NANORODSTEMPERATURE SYNTHESISCATALYTIC-PROPERTIESTHERMAL REDUCTIONV2O3 NANOCRYSTALS
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