Abstract
With the choline chloride/urea deep eutectic solvents (DESs) as the medium, the olive-like lanthanum particles with uniform shape and size were successfully prepared through a potentiostatic deposition method. The prepared samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy and X-ray photoelectron spectroscopy (XPS). At the same time, the effect of deposition potential, temperature and time on the size and morphology of samples was investigated. The results demonstrated that the optimum conditions for the preparation of olive-like lanthanum particles were as follows: deposition potential of -1.7 V, temperature of 80 oC and deposition time of 15 min.
Graphical Abstract
Keywords
deep eutectic solvents, lanthanum, electrodeposition
Publication Date
2015-12-23
Online Available Date
2015-11-02
Revised Date
2015-10-21
Received Date
2015-09-11
Recommended Citation
Li WANG, You-jun FAN, Lu WEI, Hai-xia LIU, Shi-gang SUN.
Electrodeposition of Lanthanum in Deep Eutectic Solvents[J]. Journal of Electrochemistry,
2015
,
21(6): 543-547.
DOI: 10.13208/j.electrochem.150844
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol21/iss6/5
References
[1] Li M(李梅),Liu Z G(柳召刚),Hu Y H(胡艳宏), et al. Rare earth elements and their analytical chemistry(1st Ed.)[M]. Bejijing: Chemistry Industry Chemistry(化学工业出版社), 2009: 14.
[2] Zhang Y H, Zhu T J, Zhao X B, et al. Flower-like nanostructure and thermoelectric properties of hydrothermally synthesized La-containing Bi2Te3 based alloys[J]. Materials Chemistry and Physics, 2007, 103(2/3): 484-488.
[3] An M Z, Lang J L, Sun D Z. Electrodepositian of La-Ni alloy films in a nonaqueous system[J]. Journal of Applied Electrochemistry, 2001, 31(8): 891-896.
[4] Yoshida H, Kato S, Hattori T, et al. Photocatalytic steam reforming of methane over platinum-loaded semiconductors for hydrogen production[J]. Chemistry Letters, 2007, 36(3): 430-431.
[5] Matsuura H, Numata H, Fujita R, et al. Reprocessing of spent hydrogen absorbing alloys by using electrochemical techniques in molten salts[J]. Journal of Physics and Chemistry of Solids, 2005, 66(2/4): 439-442.
[6] Legeai S, Dilibertoa S, Stein N, et al. Room-temperature ionic liquid for lanthanum electrodeposition[J]. Electrochemistry Communications, 2008, 10(11): 1661-1664.
[7] Liao H G, Jiang Y X, Zhou Z Y, et al. Shape-controlled synthesis of gold nanoparticles in deep eutectic solvents for studies of structure-functionality relationships in electrocatalysis[J]. Angewandte Chemie-International Edition, 2008, 47(47): 9100-9103.
[8] Wei L(韦露), Fan Y J(樊友军). Progress of deep eutectic solvents and their applications[J]. Chemistry(化学通报), 2011, 74(4): 333-339.
[9] Wei L, Fan Y J, Tian N, et al. Electrochemically shape-controlled synthesis in deep eutectic solventsa new route to prepare Pt nanocrystals enclosed by high-index facets with high catalytic activity[J]. Journal of Physical Chemistry C, 2012, 116(2): 2040-2044.
[10] Wei L, Fan Y J, Wang H H, et al. Electrochemically shape-controlled synthesis in deep eutectic solvents of Pt nanoflowers with enhanced activity for ethanol oxidation[J]. Electrochimica Acta, 2012, 76: 468-474.
[11] Kim P(金炳勋), Xie H W(谢宏伟), Gu H M(顾惠敏), et al. Electrochemical study on electrodeposition of La3+ in EMIMBF4 ionic liquid[J]. Rare Metal Materials and Engineering(稀有金属材料与工程). 2012, 41(4): 509-602.
[12] An X S, Fan Y J, Sun S G, et al. Enhanced activity of rare earth doped PtRu/C catalysts for methanol electrooxidation[J]. Electrochimica Acta, 2011, 56: 8912-8918
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons