Morphology-controlled preparation of lead powders by electrodeposition from different PbO-containing choline chloride-urea deep eutectic solvent
Morphology-controlled preparation of lead powders by electrodeposition from different PbO-containing choline chloride-urea deep eutectic solvent
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不同含PbO氯化胆碱-尿素低共熔溶剂电沉积形貌控制制备铅粉
DOI：
10.1016/j.apsusc.2015.02.045
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发表时间：
2015-04
影响因子：
6.7
通讯作者：
Yafei Jie
中科院分区：
文献类型：
--
作者：
Yan Li;Ding Wang;Cancan Qi;Yafei Jie
在含不同PbO(10~60 mm)的氯化胆碱-尿素深共晶溶剂中，在2.5V和343K的槽电压下电沉积2h，在不锈钢上制备了珊瑚、棒状、线状、针状、蕨类和树枝状等不同形貌的铅粉，并用循环伏安法研究了PbO在该溶剂中的电化学行为。结果表明，随着PbO浓度的增加，还原电位EPb(II)/Pbb正向移动，有利于PbO在深共晶溶剂中的电沉积。通过对铅粉的形貌和结晶学特征的分析，发现随着PbO浓度的增加，生长层的主要来源由中心型向边角型转变。在PbO浓度较高时，由于有大量的生长中心，在形成的颗粒表面观察到细小且不规则的颗粒，从而导致枝晶中一次和二次枝晶的发展。
Lead powders with different morphologies, including corals, rods, wires, needles, ferns and dendritic forms, are prepared by electrodeposition onto a stainless steel substrate from different PbO-containing (10–60 mM) choline chloride-urea deep eutectic solvent at cell voltage 2.5 V and 343 K for 2 h. The electrochemical behavior of the PbO dissolved in this solvent is investigated with cyclic voltammetry. It is demonstrated that the increasing of PbO concentration makes the reduction potentialEPb(II)/Pbshift positively and facilitates the electrodeposition of lead from PbO in the deep eutectic solvent. According to the analysis of the morphological and crystallographic characteristics of lead powders, the predominant origin of the growth layers is turned away from centre type towards the edge and corner types with the increase in PbO concentration. Due to the large number of growth centres at higher PbO concentration, fine and irregular grains are observed on the surface of formed particles which results in the development of primary and secondary branches in dendrites.
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影响因子：
6.6
作者：
MURESAN, L;ONICIU, L;MAURIN, G
通讯作者：
MAURIN, G
DOI：
--
发表时间：
1989
期刊：
--
影响因子：
--
作者：
N. V. Parthasaradhy
通讯作者：
N. V. Parthasaradhy
影响因子：
6.6
作者：
P. Martis;V. S. Dilimon;J. Delhalle;Z. Mekhalif
通讯作者：
P. Martis;V. S. Dilimon;J. Delhalle;Z. Mekhalif
影响因子：
2.9
作者：
J. Mostany;J. Parra;B. Scharifker
通讯作者：
J. Mostany;J. Parra;B. Scharifker
影响因子：
9.8
作者：
Poonam Mahadev Pawar;K. J. Jarag;G. Shankarling
通讯作者：
Poonam Mahadev Pawar;K. J. Jarag;G. Shankarling