Electrospun polystyrene fiber-templating ultrafine gold hollow fiber production
Electrospun polystyrene fiber-templating ultrafine gold hollow fiber production
复制标题
静电纺聚苯乙烯纤维模板超细金中空纤维生产
DOI：
10.1007/s13404-013-0083-z
复制
发表时间：
2013
期刊：
影响因子：
2.2
通讯作者：
Masahito Taya
中科院分区：
文献类型：
--
作者：
Shinji Sakai;Shogo Kawa;Koichi Sawada;Masahito Taya
外径约1.5 μm、空芯直径约1 μm的超细金中空纤维，即，约250 nm厚的金鞘层，结合静电纺丝技术、光还原、无电镀和热处理以除去模板聚合物纤维。以紫外光照射下原位生成的金纳米粒子作为金鞘层形成的种子，在直径约1 μm的静电纺聚苯乙烯纤维上通过化学镀制备了金鞘层。然后，通过在180、350或800 °C下处理所得纤维来形成中空芯结构。扫描电子显微镜成像显示，在180 °C下以及在350 ° C和500 °C下处理的纤维中形成中空芯结构。这些结果表明，使用静电纺丝聚苯乙烯纤维作为空芯结构的模板，超细金中空纤维的制造的可能性。
Ultrafine gold hollow fibers of about 1.5 μm in outer diameter and 1 μm in hollow core diameter, i.e., about 250 nm of gold sheath thickness, were produced in combination with electrospinning technique, photoreduction, electroless plating, and heat treatment for removing template polymer fibers. The gold sheath was fabricated through electroless plating on electrospun polystyrene fibers of about 1 μm diameter using the gold nanoparticles formed in situ in the fibers by irradiation of ultraviolet light as seeds of the gold sheath formation. Then, a hollow core structure was developed by treating the resultant fibers at 180, 350, or 800 °C. Scanning electron microscopy imaging showed the formation of a hollow core structure in the fibers by the treatment at 180 °C as well as those treated at 350 and 500 °C. These results demonstrate the possibility of fabrication of ultrafine gold hollow fibers using electrospun polystyrene fibers as a template of the hollow core structure.