Synthesis of trigonal selenium nanorods by electrodeposition from an ionic liquid at high temperature
作者： Marc Steichen , Phillip Dale
DOI: 10.1016/J.ELECOM.2011.05.023
关键词:
摘要: Abstract We report on the electrodeposition of trigonal selenium (t-Se) nanorods from 1-ethyl-3-methylimidazolium tetrafluoroborate/chloride ([C 2 mim][BF 4 ]/[C mim]Cl) at high temperature (T > 100 °C). It is shown that Se 4+ precursor salt significantly influences electrochemical behaviour, as well phase, morphology and crystallinity deposits. Amorphous (a-Se) films are deposited [C mim]Cl-SeCl whereas aspect ratio single-crystalline formed mim]Cl-SeO . The t-Se characterized by XRD, SEM, TEM Raman spectroscopy growth mechanism a-Se particles during process elucidated. improved increasing 100 to 160 °C. Photoelectrochemical measurements performed in ionic liquid confirm p-type conductivity nanorods.
core.ac.uk
elsevier.com
sci-hub.se 参考文章(14)
V. V. Kalugin, V. S. Minaev, S. P. Timoshenkov, STRUCTURAL AND PHASE TRANSFORMATIONS IN CONDENSED SELENIUM Journal of Optoelectronics and Advanced Materials. ,vol. 7, pp. 1717- 1741 ,(2005)
Chang Wei, Noseung Myung, Krishnan Rajeshwar, A combined voltammetry and electrochemical quartz crystal microgravimetry study of the reduction of aqueous Se(IV) at gold Journal of Electroanalytical Chemistry. ,vol. 375, pp. 109- 115 ,(1994) , 10.1016/0022-0728(94)03377-3
N. Wang, Y. Cai, R.Q. Zhang, Growth of nanowires Materials Science & Engineering R-reports. ,vol. 60, pp. 1- 51 ,(2008) , 10.1016/J.MSER.2008.01.001
B. Gates, B. Mayers, A. Grossman, Y. Xia, A Sonochemical Approach to the Synthesis of Crystalline Selenium Nanowires in Solutions and on Solid Supports Advanced Materials. ,vol. 14, pp. 1749- 1752 ,(2002) , 10.1002/1521-4095(20021203)14:23<1749::AID-ADMA1749>3.0.CO;2-Z
Michel Armand, Frank Endres, Douglas R. MacFarlane, Hiroyuki Ohno, Bruno Scrosati, Ionic-liquid materials for the electrochemical challenges of the future. Nature Materials. ,vol. 8, pp. 621- 629 ,(2009) , 10.1038/NMAT2448
S Zein, E Abedin, AY Saad, HK Farag, N Borisenko, QX Liu, F Endres, Electrodeposition of selenium, indium and copper in an air- and water-stable ionic liquid at variable temperatures Electrochimica Acta. ,vol. 52, pp. 2746- 2754 ,(2007) , 10.1016/J.ELECTACTA.2006.08.064
Kiyofumi Nagata, Takatoshi Ishikawa, Yasuhiko Miyamoto, Raman Spectrum of Selenium Dissolved in an Aqueous Solution of Sodium Sulfide Japanese Journal of Applied Physics. ,vol. 24, pp. 1171- 1173 ,(1985) , 10.1143/JJAP.24.1171
Unyong Jeong, Pedro H. C. Camargo, Young Hwan Lee, Younan Xia, Chemical transformation: a powerful route to metal chalcogenide nanowires Journal of Materials Chemistry. ,vol. 16, pp. 3893- 3897 ,(2006) , 10.1039/B606682H
Andrew M. Smith, Shuming Nie, Semiconductor Nanocrystals: Structure, Properties, and Band Gap Engineering Accounts of Chemical Research. ,vol. 43, pp. 190- 200 ,(2010) , 10.1021/AR9001069
Yanqing Lai, Fangyang Liu, Jie Li, Zhian Zhang, Yexiang Liu, Nucleation and growth of selenium electrodeposition onto tin oxide electrode Journal of Electroanalytical Chemistry. ,vol. 639, pp. 187- 192 ,(2010) , 10.1016/J.JELECHEM.2009.11.026