Controllable synthesis of 2D amorphous carbon and partially graphitic carbon materials: Large improvement of electrochemical performance by the redox additive of sulfanilic acid azochromotrop in KOH electrolyte

2016 ◽  
Vol 200 ◽  
pp. 247-258 ◽  
Author(s):  
Qian Wang ◽  
Yong Fu Nie ◽  
Xiang Ying Chen ◽  
Zheng Hui Xiao ◽  
Zhong Jie Zhang
2017 ◽  
Vol 5 (17) ◽  
pp. 7854-7861 ◽  
Author(s):  
Guangyao Ma ◽  
Kangsheng Huang ◽  
Jia-Sai Ma ◽  
Zhicheng Ju ◽  
Zheng Xing ◽  
...  

The intercalation of potassium ions into graphitic carbon materials has been demonstrated to be feasible while the electrochemical performance of the potassium-ion battery (PIB) is still unsatisfactory.


2014 ◽  
Vol 93 ◽  
pp. 164-167 ◽  
Author(s):  
Joon Won Lim ◽  
Atta Ul Haq ◽  
Sang Ouk Kim

Polymer grafting from graphitic carbon materials has been explored for several decades. Currently existing methods mostly employ harsh chemical treatment to generate defect site in graphitic carbon plane, which are used as active site for polymerization of precursors. Unfortunately, the treatment cause serious degradation of chemical structure and material properties. Here, we present a straightforward route for growth of polyaniline chain from nitrogen (N)-sites of carbon nanotubes. N site in the CNT wall initiates the polymerization of aniline monomer, which generates seamless hybrids composed of polyaniline directly grafted onto the CNT walls. The synthesized hybrids show excellent synergistic electrochemical performance, and are employed for electrodes of pseudo-capacitor. This approach offers an efficient way to obtain hybrid system consisting of conducting polymers directly grafted from graphitic dopant sites.


2021 ◽  
Vol 36 (3) ◽  
pp. 435-448
Author(s):  
Deng-ke Wang ◽  
Jia-peng Zhang ◽  
Yue Dong ◽  
Bin Cao ◽  
Ang Li ◽  
...  

2017 ◽  
Vol 5 (48) ◽  
pp. 25545-25554 ◽  
Author(s):  
Runjia Lin ◽  
Zhuangnan Li ◽  
Dina Ibrahim Abou El Amaiem ◽  
Bingjie Zhang ◽  
Dan J. L. Brett ◽  
...  

A simple method is developed to boost the electrochemical performance of graphitic carbon nitride/graphene composites as supercapacitor electrodes.


Small Methods ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 1800227 ◽  
Author(s):  
Zheng‐Long Xu ◽  
Jooha Park ◽  
Gabin Yoon ◽  
Haegyeom Kim ◽  
Kisuk Kang

2021 ◽  
Vol 17 ◽  
Author(s):  
Ahmed Alahmed ◽  
Emel Ceyhun Sabır

: The electrodes are the basis for building flexible lithium-ion batteries (FLIBs), and many attempts have been made to develop flexible electrodes with high efficiency in terms of electrical conductivity, chemical and mechanical properties. Most studies showed relatively satisfactory results when testing the electrochemical properties of laboratory-produced electrodes, but most of these electrodes could not meet the expected requirements of flexible electrodes in practical applications. Quantitative production faces many problems that must be overcome, such as the gradual decline in electrochemical performance, deformation of the electrode structure, high production costs, and difficulties in the production process itself. In this research, developments in the production of flexible electrodes, especially those that depend on carbon materials and metal nanoparticles, will be discussed and summarized in this research. The electrochemical performance and stability of the produced flexible electrodes will be compared. The factors contributing to the progress in the production of flexible lithium-ion batteries will also be discussed.


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