Facile Synthesis of Ultrathin ZnO Nanotubes with Well-Organized Hexagonal Nanowalls and Sealed Layouts: Applications for Lithium Ion Battery Anodes

Title
Facile Synthesis of Ultrathin ZnO Nanotubes with Well-Organized Hexagonal Nanowalls and Sealed Layouts: Applications for Lithium Ion Battery Anodes
Author(s)
송태섭Keon Tae Park[Keon Tae Park]Fan Xia[Fan Xia]Sung Woong Kim[Sung Woong Kim]Seong Been Kim[Seong Been Kim]Ungyu Paik[Ungyu Paik]Won Il Park[Won Il Park]
Keywords
RECHARGEABLE BATTERIES; THIN-FILMS; NANOWIRES; PERFORMANCE; GROWTH; ZINC; NANOSTRUCTURES; ELECTROLYTE; FABRICATION; NANORODS
Issue Date
201301
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.117, no.2, pp.1037 - 1043
Abstract
We report a new facile route to synthesize the ZnO nanotubes by thermal annealing of solid nanorods in ambient NH3. The unique characteristic of this approach allows achievement of ultrathin nanotubes with well-organized hexagonal nanowalls and sealed layouts. On the basis of our experimental observations, we developed a nanotube formation mechanism illustrating the following: (i) energetically active nanorod surfaces could be readily passivated to form a few-atoms-thick Zn3N2 layer and (ii) nanopores generated from the seed layer were extended to the inside of nanorod bottoms and then propagated upward until they reached the tops of the nanorods. On the basis of key features of these tubular structures, we assessed the electrochemical performance of the nanotubes as anode materials in lithium ion batteries, demonstrating significant improvements in cycling performance over counterparts made of solid nanostructures.
URI
http://hdl.handle.net/YU.REPOSITORY/26758http://dx.doi.org/10.1021/jp310428r
ISSN
1932-7447
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공과대학 > 신소재공학부 > Articles
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