SUPERCAPACITOR ELECTRODE MATERIALS BASED ON NANOSTRUCTURED GOLD-CARBON COMPOSITES
Abstract
Nanostructured Au/C composites were obtained by reduction of HAuCl4 solutions with porous carbon matrix. Investigation by different methods shows that the size of forming gold particles is comparable with matrix pore size. It wasdiscovered that a decrease in the concentration of gold in the composites results in an increase in anisometry of Au crystallites, with a predominant enhancement in the direction (100). The comparison of pore size distribution functions of the original Karbonizat matrix and composites on its basis showed that pores with sizes of 2 – 8 nm were less inhibited than the pores of 1 – 2 nm and 8 – 20 nm. It was established that the optimum content of gold in the composite was 1 wt. %. It was found out that electrodes based on Au/C nanocomposites in the asymmetric cell had specific capacity up to 360 F/g, which was 1.8 times higher than the capacity of the original matrix.
About the Authors
G. Yu. Simenyuk
Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS
Russian Federation
Russian Federation
Galina Yu. Simenyuk – Candidate of Chemistry, Research Associate
N. V. Pavelko
Kemerovo State University
Russian Federation
Nina V. Pavelko – post-graduate student at the Department of Solid State Chemistry
Russian Federation
Nina V. Pavelko – post-graduate student at the Department of Solid State Chemistry
A. V. Puzynin
Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS
Russian Federation
Russian Federation
Andreiy V. Puzynin – Candidate of Physics and Mathematics, Research Associate
V. G. Dodonov
Kemerovo State University
Russian Federation
Vadim G. Dodonov – Candidate of Physics and Mathematics, Senior Research Associate at the Department of Solid State Chemistry
Russian Federation
Vadim G. Dodonov – Candidate of Physics and Mathematics, Senior Research Associate at the Department of Solid State Chemistry
T. S. Manina
Kemerovo Research Centre of the Siberian Branch of the RAS
Russian Federation
Tatiana S. Manina – research engineer at the Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS; leading engineer at the Centre for Collective Use
Russian Federation
Tatiana S. Manina – research engineer at the Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS; leading engineer at the Centre for Collective Use
Z. R. Ismagilov
Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS
Russian Federation
Russian Federation
Zinfer R. Ismagilov – Corresponding Member of the RAS, Doctor of Chemistry, Professor, Director of the Institute of Coal Chemistry and Materials Science of the Siberian Branch of the RAS
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Review
For citations:
Simenyuk G.Yu., Pavelko N.V., Puzynin A.V., Dodonov V.G., Manina T.S., Ismagilov Z.R. SUPERCAPACITOR ELECTRODE MATERIALS BASED ON NANOSTRUCTURED GOLD-CARBON COMPOSITES. SibScript. 2014;(3-3):242-245. (In Russ.)
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