Controlled synthesis of V2O5/MWCNT core/shell hybrid aerogels through a mixed growth and self-assembly methodology for supercapacitors with high capacitance and ultralong cycle life

2015 ◽  
Vol 3 (30) ◽  
pp. 15692-15699 ◽  
Author(s):  
Yingjie Wu ◽  
Guohua Gao ◽  
Huiyu Yang ◽  
Wenchao Bi ◽  
Xing Liang ◽  
...  

Three-dimensional V2O5/MWCNT core/shell hybrid aerogels were controllably synthesized through a mixed growth and self-assembly methodology in a one-pot sol–gel process.

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7179-7187 ◽  
Author(s):  
Wenchao Bi ◽  
Guohua Gao ◽  
Yingjie Wu ◽  
Huiyu Yang ◽  
Jichao Wang ◽  
...  

Novel 3D island-chain structured V2O5/graphene/MWCNT hybrid aerogels are synthesized by a sol–gel method which exhibit enhanced specific capacitance (504 F g−1), large energy density (70 W h kg−1) and outstanding cyclic property (82.9% retention after 32 500 cycles).


2013 ◽  
Vol 699 ◽  
pp. 126-132 ◽  
Author(s):  
Toshiyuki Nomura ◽  
Syota Tanii ◽  
Hayato Tokumoto ◽  
Yasuhiro Konishi

Hollow inorganic particles have attracted considerable interest for a variety of applications. In this work, yeast powder was used as a bio-template to fabricate yeast/titania core-shell spheres. A titania precursor was deposited via the hydrolysis of tetraisopropyl titanate. Triethanolamine was employed to control the reaction rate of the sol-gel process. The hollow titania particles with a diameter of approximately 4 m and a thickness of approximately 54 nm were successfully obtained after calcination of the core-shell spheres at 700 °C. The crystal structure of the particles was anatase. The specific surface area and the average pore diameter were 21.4 m2/g and 1.6 nm, respectively. The photocatalytic activity of the hollow particles was higher compared with that of solid particles.


2014 ◽  
Vol 2 (34) ◽  
pp. 13845-13853 ◽  
Author(s):  
Yu-Zhi Su ◽  
Kang Xiao ◽  
Nan Li ◽  
Zhao-Qing Liu ◽  
Shi-Zhang Qiao

A complex hydroxide/metal Ni(OH)2@Ni core–shell electrode was developed for a high-performance and flexible pseudocapacitor.


2003 ◽  
Vol 56 (10) ◽  
pp. 1001 ◽  
Author(s):  
Toyoki Kunitake ◽  
Shigenori Fujikawa

The use of nanosized templates to fabricate three-dimensional architectures in the nanometer regime is still a largely unexplored field of nanotechnology. Positive and negative copying of molecules and nano-sized objects by the surface sol–gel process is useful for this purpose. The authors here give account of the techniques available to date, along with their advantages and disadvantages, is outlined.


2019 ◽  
Vol 140 (5) ◽  
pp. 2267-2274
Author(s):  
Fatemeh Javanbakht ◽  
Bahareh Razavi ◽  
Mehdi Salami-Kalajahi ◽  
Hossein Roghani-Mamaqani ◽  
Masoud Ommati

2020 ◽  
Vol 141 ◽  
pp. 105540
Author(s):  
Linlong Meng ◽  
Haoxin Zhu ◽  
Bing Feng ◽  
Zhenhua Gao ◽  
Di Wang ◽  
...  

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