Responsive polymer/gold nanoparticle composite thin films fabricated by solvent-induced self-assembly and spin-coating

2011 ◽  
Vol 354 (2) ◽  
pp. 585-591 ◽  
Author(s):  
Dongxiang Li ◽  
Ji Yong Lee ◽  
Dong Ha Kim
2013 ◽  
Vol 345 ◽  
pp. 193-196
Author(s):  
Xin Kang Gao ◽  
Jun Liu ◽  
Ting Hua Wang ◽  
Xue Li ◽  
Xiao Kai Zhang

In this study, a method to generate arrays of Fe3O4 nanoparticles (MNPs) via block copolymer (BC) self-assembly was developed. A composite film of polystyrene-block-poly (2-vinylpyridine) (PS-b-P2VP)/MNPs was first prepared by spin-coating the PS-b-P2VP/MNPs mixed solution on a carbon substrate. After the composite film was annealed at high temperature for 2 days, it was found that the modified MNPs could be selectively incorporated into P2VP cylinders in PS-b-P2VP diblock copolymers and the P2VP cylinders were oriented parallel to the substrate. For a long time annealing (10 days), the P2VP cylinders become normal to the substrate and MNPs are located at the interface of P2VP and PS phases.


2019 ◽  
Vol 293 ◽  
pp. 35-49 ◽  
Author(s):  
Wiktor Matysiak ◽  
Tomasz Tański ◽  
Weronika Smok

Today, one of the most popular nanomaterials are thin nanofibrous layers, which are used in many fields of industry, eg electronics, optics, filtration and the textile industry. They can be produced by various methods, such as drawing, template synthesis, molecular self-assembly or phase separation method, but the most common method is electrospinning from a solution or melts. Electrospinning is gaining more and more interest due to its versatility, simplicity and economy as well as the possibility of producing fibers from various types of polymeric, ceramic and metalic materials. Nanofibrous layers produced by this method are characterized by high quality and the desired physicochemical properties.


2016 ◽  
Vol 18 (3) ◽  
pp. 1945-1952 ◽  
Author(s):  
Xingjuan Zhao ◽  
Qian Wang ◽  
Xiaokai Zhang ◽  
Yong-Ill Lee ◽  
Hong-Guo Liu

A new and facile approach was developed to fabricate functional composite films of block copolymers at the air/liquid interface through a self-emulsification, self-assembly and adsorption process.


2016 ◽  
Vol 13 (1) ◽  
pp. 43-49 ◽  
Author(s):  
P. S. Joshi ◽  
D. S. Sutrave

Ruthenium oxide, Manganese oxide and (Ru:Mn)O2 composite thin films have been prepared by 0.02M Ruthenium chloride and Manganese acetate solutions respectively on stainless steel substrates by sol-gel spin coating method. Layer by layer deposition of RuO2 and MnO2 was done for composite films. RuO2: MnO2 composite thin films have been demonstrated to be an excellent material for Supercapacitor application when evaluated with RuO2 and MnO2 thin film electrodes with respect to XRD, SEM, CV, CP and EIS studies. As a result, high specific capacitance of 515 F/g at 10 mV/s with excellent stability and long cycle life was obtained, where specific power and energy were as high as 15.38 Wh/kg and 4.06 KW/kg respectively with loading weight of 0.13 mg/cm2 .Composite films showed changes in structural and morphological features which was admiring for supercapacitor applications. The electrochemical impedance measurement was carried out in 0.1M KOH in the frequency range 10 to 105 Hz. From the analysis it can be concluded that mixed oxide composites have superior capacitive performance to single transition metal oxides as electrodes.


2012 ◽  
Vol 22 (39) ◽  
pp. 21117 ◽  
Author(s):  
Li Shi ◽  
Qing Yu ◽  
Yiyin Mao ◽  
Hubiao Huang ◽  
Hongwen Huang ◽  
...  

2015 ◽  
Vol 51 (93) ◽  
pp. 16687-16690 ◽  
Author(s):  
Xingjuan Zhao ◽  
Qian Wang ◽  
Yong-Ill Lee ◽  
Jingcheng Hao ◽  
Hong-Guo Liu

A new and facile strategy to fabricate composite thin films with tunable morphologies at the air/liquid interface is first reported, paving a new way for the generation of composite films in nanotechnology applications.


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