Supramolecular complexes C<18-crown-ether-6> and their application in devices for energy generation, storage and transformation

• Autorzy: Venhryn B. , Stotsko Z. , Grygorchak I. , Mudry S. , Balaban O.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Formation of supramolecular complexes C<18-crown-ether-6> and investigation of their electrochemical characteristics was the aim of this paper. An organic receptor is inserted in nano/mesopores of activated carbon of these supramolecular complexes. Design/methodology/approach: Electrochemical studies of supramolecular complexes C<18-crown-ether-6> were carried out by means of impedance spectroscopy, cyclic voltammetry and galvanostatic cycling. Findings: It is shown that Faraday generation of energy occurs at low positive potentials whereas the capacitive storage - at higher potentials. As result the value of specific capacitance for AC of faradaic process 10000 F/g was reached as well as 154 F/g of non-faradaic process, whereas the same parameters for BAC equal 13350 F/g and 80 F/g, respectively. Research limitations/implications: This research is a complete and accomplished work. Practical implications: Supramolecular complexes, obtained in this work, could be regarded as promising electrode materials in devices of energy generation, storage and transformation. Originality/value: This work is of urgent importance for physics and chemistry of energy generation, storage and transformation, because it opens new possibilities to new highly effective electrode materials search and enables to reach a high values of functional characteristics.

Słowa kluczowe

EN

nanoporous carbon; 18-crown-ether-6; faradaic process

PL

węgiel nanoporowaty; eter koronowy; proces faradajowski

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2011
• Tom: Vol. 52, nr 1
• Strony: 18--22
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Venhryn B.

autor

Stotsko Z.

autor

Grygorchak I.

autor

Mudry S.

autor

Balaban O.

• Lviv Polytechnic National University, 12 St. Bandera Street, Lviv 79013, Ukraine,

Bibliografia

• [1] B.E. Conway, Electrochemical Supercapasitors. Plenum Publishing, New York, 1999.
• [2] A. Du Pasquier, I. Plitz, J. Gural, S. Menocal, G. Amatucci, Characteristics and performance of 500 F asymmetric hybrid advanced supercapacitor prototypes, Journal of Power Sources 113 (2003) 62-71.
• [3] B.P. Bakhmatyuk, B.Ya. Venhryn, I.I. Grygorchak, M.M. Micov, Yu.O. Kulyk, On the hierarchy of the influences of porous and electronic structures of carbonaceous materials on parameters of molecular storage devices, Electrochimica Acta 52 (2007) 6604-6610.
• [4] N.V. Korovin, Chemical power sources. Current status, Journal Electrochimical Energy 3/4 (2003) 163-168 (in Russian).
• [5] Y.-H. Lee, J.-G. Oh, H.-S. Oh, H. Kim, Novel method for the preparation of carbon supported nano-sized amorphous ruthenium oxides for supercapacitors, Electrochemistry Communications 10 (2008) 1035-1037.
• [6] J.-M. Lehn, Supramolecular Chemistry. Concepts and Perspectives. VCH Verlagsgesellschaft mbH, Weinheim–New York–Basel–Cambridge–Tokyo, 1995.
• [7] R. De Levie, On porous electrodes in electrolyte solution: I. Capacitance effects, Electrochimica Acta 8 (1963) 751-80.