Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received February 12, 2013
Accepted August 5, 2013

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Hydrothermal synthesis of one-dimensional tungsten oxide nanostructures using cobalt ammonium sulfate as a structure-directing agent

Shanmugasundaram Rajagopal Hae-Min Lee Kangtaek Lee¹ Chang-Koo Kim^†

Department of Chemical Engineering and Division of Energy Systems Research, Ajou University, Suwon 443-749, Korea ¹Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea

changkoo@ajou.ac.kr

Korean Journal of Chemical Engineering, October 2013, 30(10), 1833-1835(3), 10.1007/s11814-013-0146-0

Download PDF

Abstract

Hydrothermal synthesis of one-dimensional tungsten oxide nanostructures was performed using cobalt ammonium sulfate as a structure-directing agent, and the effect of the concentration of cobalt ammonium sulfate on the characteristics of the tungsten oxide nanostructures was investigated. XRD measurements showed that hexagonal tungsten oxide (h-WO3) structures were obtained at a higher concentration of cobalt ammonium sulfate (0.2 M), while cubic tungsten oxide (c-WO3) structures were obtained at a lower concentration of cobalt ammonium sulfate (0.01M). Mixed structures of h-WO3 and c-WO3 were observed at an intermediate concentration of cobalt ammonium sulfate. Morphological studies revealed that h-WO3 appeared as nanowires with a diameter of about 40 nm and an average length of 1 μm. c-WO3 was shaped in pillar-like nanorods with a diameter of about 30 nm. A red-shift in the UV/Vis absorption peak was observed with different phases of tungsten oxide nanostructures.

Keywords

Hydrothermal Tungsten Oxide Nanostructures Structure-directing Agent

References

Devan RS, Patil RA, Lin JH, Ma YR, Adv. Funct. Mater., 22(16), 3326 (2012)
Trapatseli M, Vernardou D, Tzanetakis P, Spanakis E, ACS Appl. Mater. Interfaces., 3, 2726 (2011)
Vernardou D, Drosos H, Spanakis E, Koudoumas E, Savvakisa C, Katsarakis N, J. Mater. Chem., 21, 513 (2011)
Zhang J, Tu JP, Xia XH, Wang XL, Gu CD, J. Mater.Chem., 21, 5492 (2011)
Huang J, Xu X, Gu C, Yang M, Yang M, Liu J, J. Mater.Chem., 21, 13283 (2011)
Horiuchi Y, Mori K, Nishiyama N, Yamashita H, Chem. Lett., 37(7), 748 (2008)
Wang XM, Yu CQ, Wu JX, Zhang YD, Chem. Lett., 41(6), 595 (2012)
Liu ZF, Yamazaki T, Shen YB, Meng D, Kikuta T, Nakatani N, Chem. Lett., 37(3), 296 (2008)
Govender M, Shikwambana L, Mwakikunga BW, Sideras-Haddad E, Erasmus RM, Forbes A, Nanoscale Res. Lett., 6, 166 (2011)
Park S, Kim H, Jin C, Lee C, Nanoscale Res. Lett., 6, 451 (2011)
Gu Z, Ma Y, Yang W, Zhang G, Yao J, Chem. Commun., 3597 (2005)
Huang K, Pan O, Yang F, Ni S, Wei X, He D, J. Phys. D-Appl.Phys., 41, 155417 (2008)
Gu Z, Li H, Zhai T, Yang W, Xia Y, Ma Y, Yao J, J. Solid State Chem., 180, 98 (2007)
Song X, Zhao Y, Zheng Y, Mater. Lett., 60, 3405 (2006)
Gu ZJ, Zhai TY, Gao BF, Sheng XH, Wang YB, Fu HB, Ma Y, Yao JN, J. Phys. Chem. B, 110(47), 23829 (2006)
Zhang J, Wang XL, Xia XH, Gu CD, Tu JP, Sol. Energy Mater. Sol. Cells, 95(8), 2107 (2011)
Ma D, Jiang J, Huang J, Yang D, Cai P, Zhang L, Huang S, Chem. Commun., 46, 4556 (2010)
Rajagopal S, Nataraj D, Mangalaraj D, Djaoued Y, Robichaud J, Khyzhun OY, Nanoscale Res. Lett., 4, 1335 (2009)
Shen X, Wang G, Wexler D, Sens. Actuat. B., 143, 325 (2009)
Subrahmanyam A, Karuppasamy A, Sol. Energy Mater. Sol. Cells, 91(4), 266 (2007)