Corn Stem-Derived, Hierarchically Nanoporous Carbon as Electrode Material for Supercapacitors

2017 ◽  
Vol 17 (10) ◽  
pp. 7729-7734 ◽  
Author(s):  
Min Eui Lee ◽  
Jun Ho Choe ◽  
Young Soo Yun ◽  
Hyoung-Joon Jin
2013 ◽  
Vol 13 (2) ◽  
pp. 95-100 ◽  
Author(s):  
Imam Prasetyo ◽  
Rochmadi Rochmadi ◽  
Teguh Ariyanto ◽  
Rakhmat Yunanto

Nanoporous carbon materials, a unique and useful material, have been widely used in many technologies such as separation processes, catalysis, energy storage, gas storage, energy conversion, etc. due to its high specific surface area and tunable porosity. In this research, nanoporous carbons were prepared using simple and innovative approach based on structural array of phenolic resin polymer without activation during carbonization process. The effect of phenolic reactant type and composition on pore structure and carbon surface morphologies was studied. Nanoporous carbon derived from resorcinol formaldehyde (RF) and from resorcinol phenol formaldehyde (RPF) polymers was suitable for electrode material supercapacitor and CO2 capture medium. RF-derived and RPF-derived carbons provide electrode material supercapacitor with specific capacitance up to 246 F/g, whereas carbonized RPF exhibited CO2 uptake of 10.63 mmol/g (at 3.5 MPa 298 K). Nanoporous carbon derived from resorcinol para-tert-butyl phenol formaldehyde (RTBPF) polymer exhibited attractive characteristics as methane storage media with methane uptake capacity as high as 8.98 mmol/g (at 3.5 MPa 298 K).


RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86282-86290 ◽  
Author(s):  
David Ávila-Brande ◽  
Daniel Arenas-Esteban ◽  
L. Carlos Otero-Díaz ◽  
Andrés Guerrero-Martínez ◽  
Gloria Tardajos ◽  
...  

A novel preparation route of an activated nanoporous carbon, produced from abundant biomass, containing a fine dispersion of gold nanoparticles within the carbon microstructure and its application as a supercapacitor electrode material is presented.


2020 ◽  
Vol 21 (2) ◽  
pp. 199-203
Author(s):  
B.K. Ostafiychuk ◽  
Z.M. Lyubun ◽  
R.P. Lisovskiy ◽  
M.I. Moiseienko ◽  
B.I. Rachiy ◽  
...  

The paper presents the results of predicting the physical properties of nanoporous carbon materials during synthesis with their subsequent use as an electrode material for electric double-layer capacitors. It has been established a multilayer neural network can be used to predict the sorption properties of nanoporous carbon materials. A multilayer neural network confirms the experimental dependences of the characteristics of nanoporous carbon materials porous structure on the technological conditions of its obtaining.


Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2940 ◽  
Author(s):  
Rabia Ahmad ◽  
Naseem Iqbal ◽  
Tayyaba Noor

Zeolitic Imidazolate Framework (ZIF-67) was prepared in two different solvents—water and methanol. Nanoporous carbon was derived from ZIF-67 via pyrolysis in an inert atmosphere. Anion exchange step of sulfidation on the synthesized material has a great influence on the structure and properties. Structural morphology and thermal stability were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy dispersive x-ray spectroscopy (EDS), Brunauer-Emmett-Teller (BET), and thermogravimetric (TG) analysis. The electrochemical analysis was evaluated by cyclic voltammetry, chronopotentiometry, and impedance analysis. The as-prepared nanoporous carbon and cobalt sulfide (NPC/CS) electrode material (water) in 2M KOH electrolyte solution exhibit high specific capacitance of 677 F/g. The excellent electrochemical performance of the NPC/CS was attributed to its hierarchical structure. This functionalized ZIF driven strategy paves the way to the preparation of various metal oxide and metal sulfide-based nanoheterostructures by varying the type of metal.


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