Green synthesis of polypyrrole tubes using curcumin template for excellent electrochemical performance in supercapacitors

2020 ◽  
Vol 8 (6) ◽  
pp. 3186-3202 ◽  
Author(s):  
Jincy Parayangattil Jyothibasu ◽  
Rong-Ho Lee

In this study, polypyrrole (PPy) having a unique hollow tubular structure was prepared through a simple and scalable one-step method of in situ chemical oxidative polymerization, employing curcumin, a plant-derived material, as a readily removable and eco-friendly template.

2020 ◽  
Vol 44 (37) ◽  
pp. 15887-15894
Author(s):  
Jingshi Wang ◽  
Zhigang Shen ◽  
Min Yi

We propose a facile one-step method to prepare a MoS2 composite anode with excellent electrochemical performance and potential for practical applications in lithium ion batteries.


2016 ◽  
Vol 18 (13) ◽  
pp. 9053-9060 ◽  
Author(s):  
Sajid Ali Ansari ◽  
Nazish Parveen ◽  
Thi Hiep Han ◽  
Mohammad Omaish Ansari ◽  
Moo Hwan Cho

Fibrous Pani–MnO2 nanocomposites were prepared using a one-step and scalable in situ chemical oxidative polymerization method.


2015 ◽  
Vol 41 (10) ◽  
pp. 15266-15271 ◽  
Author(s):  
Hongyuan Zhao ◽  
Bing Chen ◽  
Cai Cheng ◽  
Weiqiang Xiong ◽  
Zhenwei Wang ◽  
...  

2014 ◽  
Vol 997 ◽  
pp. 368-370
Author(s):  
Ping Zhong ◽  
Lin Xiu Cheng ◽  
Xing Lu

In this paper,ZnO/PANI transparent conductive film has been prepared by in situ chemical oxidative polymerization, APS as an oxidant. The conductivity and transmittance of ZnO/PANI was measured. It has been investigated of the effects of reaction conditions and the doping component on conductivity, transmissivity and adhesion. With the increase of doping ZnO, the conductivity of ZnO/PANI transparent conductive film, transmittance and adhesion reduced. The optimal conditions is that the concentration of An, APS and PVA are 0.75 mol / L, 0.8 mol / L and 0.5wt%, respectively.


2014 ◽  
Vol 2 (30) ◽  
pp. 12068-12074 ◽  
Author(s):  
Miaomiao Liu ◽  
Jing Sun

A well-organized flexible GS/Fe3O4 paper has been constructed, which exhibits excellent electrochemical performance as a self-supporting negative electrode.


2011 ◽  
Vol 364 ◽  
pp. 50-54 ◽  
Author(s):  
Afarin Bahrami ◽  
Z.A. Talib ◽  
W. Mahmood Mat Yunus ◽  
Kasra Behzad ◽  
Nayereh Soltani

This study describes the preparation of polypyrrole multiwall carbon nanotube (PPy/MWNT) composites by in situ chemical oxidative polymerization. Various ratios of functionalized MWNTs are dispersed in the water, and PPy are then synthesized via in-situ chemical oxidative polymerization on the surface of the carbon nanotubes. The morphology of the resulting complex nanotubes (MWNT-PPY) was characterized by field-emission scanning electron microscopy (FESEM). The conductivity of each composite showed a maximum in the temperature scale of 120 – 160 °C and then decreased dramatically with the increase of temperature. The resultant PPy/MWNT nanotubes enhanced electrical conductivity and thermal stability of nanocomposite compared to PPy which was strongly influenced by the feed ratio of pyrrole to MWNTs.


2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Xiaoling Yao ◽  
Chungui Du ◽  
Yating Hua ◽  
Jingjing Zhang ◽  
Rui Peng ◽  
...  

In recent years, bamboo has been widely used for building materials and household goods. However, bamboo is flammable, so a flame-retardant treatment for bamboo is urgently needed. In this work, nano MgAl-layered double hydroxide (MgAl-LDH) coated on bamboo, which was called MgAl-LB, was synthesized by an in situ one-step method. To determine the optimal in situ time, the effects of different reaction times on LDH growth on the bamboo surface and the flame retardancy of the MgAl-LBs were investigated. The SEM observations show that LDH growth on the surface of bamboo was basically saturated when the in situ reaction time was 24 h. Abrasion experiments show that MgAl-LDH coating has good abrasion resistance. The fire performance of the MgAl-LBs was evaluated by cone calorimeter tests, which indicated that the THR and TSP of the MgAl-LBs were significantly lower than those of untreated bamboo. Taking into account the energy consumption problem, determining the reaction time of 24 h is the optimal reaction time. Compared with untreated bamboo, the THR and TSP of MgAl-LB prepared at 24 h decreased by 33.3% and 88.9%, respectively.


RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22836-22847
Author(s):  
P. Nagaraju ◽  
M. Arivanandhan ◽  
A. Alsalme ◽  
A. Alghamdi ◽  
R. Jayavel

Nanoparticles of α-molybdenum oxide (α-MoO3) are directly grown on graphene sheets using a surfactant-free facile one step ultrafast in situ microwave irradiation method.


RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38324-38329 ◽  
Author(s):  
Guixiang Du ◽  
PanPan Liu ◽  
Xinhui Yang ◽  
Jingbo Zhang ◽  
Xiaoxu Wang ◽  
...  

A simple one-step hydrothermal method is developed for the synthesis of flower-like Co(OH)2 microspheres/graphene composites, which exhibit an excellent electrochemical performance.


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