Aqueous preparation of surfactant-free copper selenide nanowires

被引：57
|
作者：
Chen, Xinqi [1 ,3 ]
Li, Zhen [1 ,2 ]
Yang, Jianping [1 ]
Sun, Qiao [1 ,2 ]
Dou, Shixue [1 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia
[2] Soochow Univ, Sch Radiat Med & Radiat Protect, Suzhou 215123, Peoples R China
[3] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Dept Phys, Wuhan 430079, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2015年 / 442卷
基金：
澳大利亚研究理事会;
关键词：
Semiconductor nanowires; Copper selenide; Surfactant free; Aqueous preparation; LIQUID-SOLID METHOD; FIGURE-OF-MERIT; CDSE NANOWIRES; BULK ALLOYS; NANOCRYSTALS; CU2-XSE; CHALCOGENIDES; CONVERSION; NANOTUBES; SOLVENT;
D O I：
10.1016/j.jcis.2014.11.052
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Uniform surfactant-free copper selenide (Cu2-xSe) nanowires were prepared via an aqueous route. The effects of reaction parameters such as Cu/Se precursor ratio, Se/NaOH ratio, and reaction time on the formation of nanowires were comprehensively investigated. The results show that Cu2-xSe nanowires were formed through the assembling of CuSe nanoplates, accompanied by their self-redox reactions. The resultant Cu2-xSe nanowires were explored as a potential thermoelectric candidate in comparison with commercial copper selenide powder. Both synthetic and commercial samples have a similar performance and their figures of merit are 0.29 and 0.38 at 750 K, respectively. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：140 / 146
页数：7
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