ELECTROCHEMICAL PERFORMANCE OF ORDERED MESOPOROUS CARBON MODIFIED BY OXIDATIVE TREATMENT WITH AQUEOUS NITRIC ACID

In this study, ordered mesoporous carbon (OMC) was prepared via nano-casting method by using Santa Barbara Amorphous (SBA)-15 as a template and sucrose as a carbon precursor. The OMC was subsequently oxidized with aqueous nitric acid and referred as MOMC. The physicochemical properties of OMC and MOMC were determined using nitrogen adsorption–desorption analyser, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR). The results proved that the carbon replication process was successful. The electrochemical performance tests were carried out using cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) in 1 M KOH electrolyte for 1000 cycles. After oxidative treatment, the specific surface area and pore volume of OMC decreased but the specific capacitance of the electrode material has significantly increased from 117 F g–1 to 344 F g–1 at a scan rate of 10 mV s–1.

[1]  Zhiping Luo,et al.  Electrochemical double-layer capacitor performance of novel carbons derived from SAPO zeolite templates , 2012 .

[2]  S. Tanaka,et al.  Correlation between the capacitor performance and pore structure of ordered mesoporous carbons , 2013 .

[3]  M. Ignat,et al.  SYNTHESIS OF MESOPOROUS CARBON MATERIALS via NANOCASTING ROUTE - COMPARATIVE STUDY OF GLYCEROL AND SUCROSE AS CARBON SOURCES , 2011 .

[4]  K. Ariga,et al.  Controlling the textural parameters of mesoporous carbon materials , 2007 .

[5]  F. Béguin,et al.  Electrochemical energy storage in ordered porous carbon materials , 2005 .

[6]  V. Saini,et al.  How the adsorption properties get changed when going from SBA-15 to its CMK-3 carbon replica , 2010 .

[7]  Sang Hoon Joo,et al.  Synthesis of Highly Ordered Carbon Molecular Sieves via Template‐Mediated Structural Transformation. , 1999 .

[8]  A. B. Fuertes,et al.  Influence of pore structure on electric double-layer capacitance of template mesoporous carbons , 2004 .

[9]  Teong Guan Chuah,et al.  Acid modified carbon coated monolith for methyl orange adsorption , 2013 .

[10]  M. Jaroniec,et al.  High temperature treatment of ordered mesoporous carbons prepared by using various carbon precursors and ordered mesoporous silica templates , 2008 .

[11]  D. Kordestani,et al.  Supported Palladium Catalysis Using a Biguanide N-Donor Motif on Mesoporous Silica for Suzuki-Miyaura Coupling Reaction , 2012 .

[12]  K. Sing.  Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984) , 1985 .

[13]  F. Lufrano,et al.  Influence of the Surface—Chemistry of Modified Mesoporous Carbon on the Electrochemical Behavior of Solid-State Supercapacitors† , 2010 .

[14]  Zhiping Luo,et al.  The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template , 2013 .

[15]  M. Jaroniec,et al.  Characterization of Ordered Mesoporous Carbons Synthesized Using MCM-48 Silicas as Templates , 2000 .

[16]  Z. Wen,et al.  Preparation, structural characterization, and electrochemical properties of chemically modified mesoporous carbon , 2006 .

[17]  Xiaoyi Liang,et al.  Effect of oxygen-containing functional groups on the impedance behavior of activated carbon-based electric double-layer capacitors , 2011 .

[18]  Bradley F. Chmelka,et al.  Nonionic Triblock and Star Diblock Copolymer and Oligomeric Surfactant Syntheses of Highly Ordered, Hydrothermally Stable, Mesoporous Silica Structures , 1998 .