Pore Structure Characterization of Poly(vinylidene chloride)-Derived Nanoporous Carbons

Hwan Jung Jung; Yong-Jung Kim; Dae Ho Lee; HAN， Jonghun; YANGKAPSEUNG; Cheol-Min Yang

Carbon Letters

Abbr : Carbon Lett.
2012, 13(4), pp.236-242
Publisher : Korean Carbon Society
Research Area : Other Natural Sciences General

Hwan Jung Jung ¹, Yong-Jung Kim ², Dae Ho Lee ³, HAN， Jonghun ⁴, YANGKAPSEUNG ⁵, Cheol-Min Yang ⁶

¹Korea Institute of Science and Technology
²Research Institute of Industrial Science and Technology
³Chiba University
⁴전남대학교
⁵전남대학교
⁶Korea Institute of Science and Technology

ABSTRACT

Poly(vinylidene chloride) (PVDC)-derived nanoporous carbons were prepared by various activation methods: heat-treatment under an inert atmosphere, steam activation, and potassium hydroxide (KOH) activation at 873, 1073, and 1273 K. The pore structures of PVDC-derived nanoporous carbons were characterized by the N2 adsorption technique at 77 K. Heat treatment in an inert atmosphere increased the specific surface area and micropore volume with elevating temperature, while the average micropore width near 0.65 nm was not significantly changed, reflecting the characteristic pore structure of ultramicroporous carbon. Steam activation for PVDC at 873 and 1073 K also yielded ultramicroporosity. On the other hand, the steam activated sample at 1273 K had a wider average micropore width of 1.48 nm, correlating with a supermicropore. The KOH activation increased the micropore volume with elevating temperature, which is accompanied by enlargement of the average micropore width from 0.67 to 1.12 nm. The average pore widths of KOH-activated samples were strongly governed by the activation temperature. We expect that these approaches can be utilized to simply control the porosity of PVDC-derived nanoporous carbons.
KEYWORDS

nanoporous carbon, activation, pore structure, adsorption
REFERENCES (25)

[journal] Noguchi D / 2007 / Storage function of carbon nanospaces for molecules and ions / ECS Trans 11 : 63~

[journal] Katsumi Kaneko / 2009 / Fundamental Understanding of Nanoporous Carbons for Energy Application Potentials / Carbon Letters / 한국탄소학회 10(3) : 177~180

[journal] Miyawaki J / 1998 / Macroscopic evidence of enhanced formation of methane nanohydrates in hydrophobic nanospaces / J Phys Chem B 102 : 2187~

[journal] 카네코 / 200504 / Highly ultramicroporous single-walled carbon nanohorn assemblies / Advanced Materials / United Nations Industrial Developement Organization 17(7) : 866~870

[journal] Kim YJ / 2012 / Edge-enriched, porous carbonbased, high energy density supercapacitors for hybrid electric vehicles / ChemSusChem 5 : 535~

[journal] 카네코 / 200701 / Nanowindow-regulated specific capacitance of supercapacitor electrodes of single-wall carbon nanohorns / JOURNAL OF THE AMERICAN CHEMICAL SOCIETY / AMER CHEMICAL SOC 129(1) : 20~21

[journal] Chmiola J / 2006 / Anomalous increase in carbon capacitance at pore sizes less than 1 nanometer / Science 313 : 1760~

[journal] Kim YJ / 2004 / Correlation between the pore and solvated ion size on capacitance uptake of PVDC-based carbons / Carbon 42 : 1491~

[journal] Yang CM / 2001 / Adsorption properties of nitrogen-alloyed activated carbon fiber / Carbon 39 : 1075~

[journal] Ohkubo T / 1999 / Porewidth dependent ordering of C2H5OH molecules confined in graphitic slit nanospaces / J Phys Chem B 103 : 1859~

[journal] Wang ZM / 1998 / Effect of pore width on micropore filling mechanism of SO2 in carbon micropores / J Phys Chem B 102 : 2863~

[journal] Endo M / 2001 / Poly(vinylidene chloride)-based carbon as an electrode materials for high power capacitors with an aqueous electrolyte / J Electrochem Soc 148(10) : A1135~

[journal] Kim YJ / 2002 / Structure and edlc applications of PVDC based carbons as a function of carbonization time / Mol Cryst Liq Cryst 386(1) : 67~

[journal] Endo M / 2002 / Structure and application of various saran-based carbons to aqueous electric double layer capacitors / J Electrochem Soc 149(11) : A1473~

[journal] Endo M / 2003 / Heat-treatment retention time dependence of polyvinylidenechloride- based carbons on their application to electric double-layer capacitors / J Mater Res 18 : 693~

[journal] Endo M / 2003 / High capacitance EDLC using a carbon material obtained by carbonization of PVDC: the effect of the crystallite size of the pristine PVDC / Electrochem Solid-State Lett 6 : A23~

[journal] Eliad L / 2006 / Assessing optimal pore-to-ion size relations in the design of porous poly(vinylidene chloride)carbons for EDL capacitors / App Phys A 82 : 607~

[journal] Xu B / 2008 / A simple method for preparing porous carbon by PVDC pyrolysis / Colloids Surf Physicochem Eng Aspects 316 : 85~

[journal] Xu Bin / 2009 / High-capacitance carbon electrode prepared by PVDC carbonization for aqueous EDLCs / Electrochemical Acta 54 : 2185~

[journal] Zhang K / 2011 / Optimizing the synthesis of composite polyvinylidene dichloride-based selective surface flow carbon membranes for gas separation / J Membr Sci 369 : 243~

[journal] Kim YJ / 2004 / PVDCbased carbon materials by chemical activation and its application to nonaqueous EDLC / J Electrochem Soc 151(6) : E199~

[journal] Xu B / 2010 / Activated carbon prepared from PVDC by NaOH activation as electrode materials for high performance EDLCs with non-aqueous electrolyte / Int J Hydrogen Energy 35 : 632~

[journal] Setoyama N / 1998 / Simulation study on the relationship between a high resolution αs-plot and the pore size distribution for activated carbon / Carbon 36 : 1459~

[journal] Yang CM / 2001 / Characterization of nitrogen-alloyed activated carbon fiber / Langmuir 17 : 675~

[journal] Roberge PR / 1988 / Fabrication and characterization of an activated carbon for electrochemical applications / Carbon 26 : 173~
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