Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Electrochemical Society
Journal Basic Information
Journal DOI :
The Korean Electrochemical Society
Editor in Chief :
Volume & Issues
Volume 13, Issue 4 - Nov 2010
Volume 13, Issue 3 - Aug 2010
Volume 13, Issue 2 - May 2010
Volume 13, Issue 1 - Feb 2010
Selecting the target year
Perspective of Hybridization Technology for Next-Generation Solar Cells
Lee, Jae-Kwan ; Lee, Jae-Joon ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 1~9
DOI : 10.5229/JKES.2010.13.1.001
We are presenting an overview of a R&D trend on dye-sensitized solar cells and organic polymer solar cells, which are classified into a next-generation solar cell, and the perspective on their hybridization technology. When considering the competition with inorganic material-base solar cells, especially, these next-generation solar cells need a new hybridization technology, even though it is still at the initial stage. The fusion and hybridization of them will be not only attractive in a new application, but also promising to expect significant progresses in the near future for successful R&D.
Dye-Sensitized Metal Oxide Nanostructures and Their Photoelectrochemical Properties
Park, Nam-Gyu ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 10~18
DOI : 10.5229/JKES.2010.13.1.010
Nanostructured metal oxides have been widely used in the research fields of photoelectrochemistry, photochemistry and opto-electronics. Dye-sensitized solar cell is a typical example because it is based on nanostructured
. Since the discovery of dye-sensitized solar cell in 1991, it has been considered as a promising photovoltaic solar cell because of low-cost, colorful and semitransparent characteristics. Unlike p-n junction type solar cell, dye-sensitized solar cell is photoelectrochemical type and is usually composed of the dye-adsorbed nanocrystalline metal oxide, the iodide/tri-iodide redox electrolyte and the Pt and/or carbon counter electrode. Among the studied issues to improve efficiency of dye-sensitized solar cell, nanoengineering technologies of metal oxide particle and film have been reviewed in terms of improving optical property, electron transport and electron life time.
Mechanism of Surface Film Formation on Graphite Negative Electrodes and Its Correlation with Electrolyte in Lithium Secondary Batteries
Jeong, Soon-Ki ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 19~33
DOI : 10.5229/JKES.2010.13.1.019
The surface film, which is formed on graphite negative electrodes during the initial charging, is a key component in lithium secondary batteries. The battery reactions are strongly affected by the nature of the surface film. It is thus very important to understand the physicochemical properties of the surface film. On the other hand, the surface film formation is a very complicated interfacial phenomenon occurring at the graphite/electrolyte interface. In studies on electrode surfaces in lithium secondary batteries, in-situ experimental techniques are very important because the surface film is highly reactive and unstable in the air. In this respect electrochemical atomic force microscopy (ECAFM) is a useful tool for direct visualizing electrode/solution interfaces at which various electrochemical reactions occur under potential control. In the present review, mechanism of surface film formation and its correlation with electrolyte are summarized on the basis of in-situ ECAFM studies for understanding of the nature of the surface film on graphite negative electrodes.
Effect of Anode Thickness on the Overpotential in a Molten Carbonate Fuel Cell
Lee, Choong-Gon ; Lee, Sung-Yoon ; Ryu, Bo-Hyun ; Kim, Do-Hyung ; Lim, Hee-Chun ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 34~39
DOI : 10.5229/JKES.2010.13.1.034
This work investigated the effect of anode thickness on the anodic overpotential with
class MCFC single cells. The hydrogen oxidation rate in the molten carbonate is sufficiently high, which may lead to weak relation of overpotential with anode geometrical area. The relation of anode surface area and overpotential was analysed in terms of anode thickness in this work. Steady state polarization, inert gas step addition (ISA), and reactant gas addition (RA) methods were employed to the two cells with 0.77 mm and 0.36 mm thickness of anode. The result represented that the anodic overpotential at the cells were identical. It implied that the anodic overpotential was independent on the electrode thickness within the tested range.
O Nanocubes by Pulse Electrodeposition
Song, You-Jung ; Han, Sang-Beom ; Lee, Hyun-Hwi ; Park, Kyung-Won ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 40~44
DOI : 10.5229/JKES.2010.13.1.040
In this work, highly uniform size-controlled
nanocubes can be successfully formed by means of pulse electrodeposition. The size distribution, crystal structure, and chemical state of deposited
nanocubes are characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The phase transition from
to Cu can be controlled by constant current electrodeposition as a function of deposition time. In particular, the size of the
nanocubes can be controlled using pulse electrodeposition as a function of applied current density.
The Stable Rechargeability of Secondary Zn-Air Batteries: Is It Possible to Recharge a Zn-Air Battery?
Lee, Sang-Heon ; Jeong, Yong-Joo ; Lim, Si-Hyoun ; Lee, Eun-Ah ; Yi, Cheol-Woo ; Kim, Keon ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 45~49
DOI : 10.5229/JKES.2010.13.1.045
The rechargeable Zn-air battery is considered as one of the potential candidates for the next generation secondary batteries due to its many advantages. However, its further applications and commercialization have been limited by the complexity of the reactions on air electrode which are oxygen reduction and evolution reactions (ORR/OER) upon discharging and charging processes, respectively. In the present study, lanthanum was impregnated into a commercial Pt/C gas diffusion electrode, and it clearly verified significantly enhanced cycling stability and reversibility. The results presented in this study show the possibility of repeated charge/discharge processes for Zn-air batteries with a La-loaded air electrode, and they demonstrate the potential as a promising next generation secondary battery.
Electrochemical Immobilization of Osmium Complex onto the Carbon Nano-Tube Electrodes and its Application for Glucose sensor
Choi, Young-Bong ; Jeon, Won-Yong ; Kim, Hyug-Han ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 50~56
DOI : 10.5229/JKES.2010.13.1.050
The multi-wall carbon nano-tube composite mixed with carbon paste electrode presented more sensitive and selective amperometric signals in the oxidation of glucose than general screen-printed carbon electrodes(SPCEs). Redox mediators to transport electrodes from enzyme to electrodes are very important part in the biosensor. A novel osmium redox complex was synthesized by the coordinating pyridine group containing primary amines which were electrochemically immobilized onto the MWCNT-SPCEs surface. Electrochemical studies of osmium complexes were investigated by cyclic voltammetry, chronoamperometry. The surface coverage of osmium complexes on the modified carbon nano-tube electrodes were significantly increased at 100 time (
) compared to that of the unmodified carbon electrodes. It's practical application of the glucose biosensor demonstrated that it shows good linear response to the glucose concentration in the range of 0-10 mM.
Chemical and Electrochemical Synthesis of Highly Conductive and Processable PolyProDOP-alkyl Derivatives
Cho, Youn-Kyung ; Pyo, Myoung-Ho ; Zong, Kyu-Kwan ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 57~62
DOI : 10.5229/JKES.2010.13.1.057
New monomers, possessing various alkyl substituents on propylene dioxypyrrole, were synthesized. The monomers could be easily polymerized to produce highly conductive and soluble polymers. The corresponding polymers showed excellent solubility, retaining electrochemical and optical properties of their parent polymer [poly(propylene dioxypyrrole)]. The conductivities of chemically prepared polymers were quite high in a range of 20 and
. Solubility of the polymer in a common organic solvent was as high as no polymer is deposited on an electrode. The redox potentials of the electrochemically prepared polymers revealed quite stable electro-activity during repeated redox switching up to 500 times. The optoelectrochemistry studies also showed distinct color changes of the polymers upon changing the doping state, indicating strong absorption peaks at 400~600 nm in reduced states and complete bleaching in fully oxidized states.
Determination of Fluoroquinolone Antibacterial Agents by Square Wave Adsorptive Stripping Voltammetry
Boo, Han-Kil ; Song, Youn-Joo ; Park, Se-Jin ; Chung, Taek-Dong ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 63~69
DOI : 10.5229/JKES.2010.13.1.063
Electrochemical behavior of fluoroquinolone antibacterial agents on carbon paste electrode (CPE) were investigated by cyclic voltammetry and square wave adsorptive stripping voltammetry. The fluoroquinolone antibacterial agents tested in this study were Enrofloxacin (ENR), Norfloxacin (NOR), Ciprofloxacin (CIP), Ofloxacin (OFL) and Levofloxacin (LEV). In acetate buffer at pH 4.5, the oxidation peak potentials of the fluoroquinolone antibacterial agents of ENR, NOR, CIP, OFL, and LEV were 0.952 V, 1.052 V, 1.055 V, 0.983 V, and 0.990 V (vs. Ag/AgCl), respectively. And their oxidation peak currents from square wave adsorptive stripping voltammograms are proportional to the concentration of each antibacterial agent over the range from
Immobilization of Proteins on Silicon Surfaces Using Chemical and Electrochemical Reactions of Nitrobenzenediazonium Cations
Kim, Kyu-Won ; Haque, Al-Monsur Jiaul ; Kang, Hyeon-Ju ;
Journal of the Korean Electrochemical Society, volume 13, issue 1, 2010, Pages 70~74
DOI : 10.5229/JKES.2010.13.1.070
The immobilization of proteins on silicon surfaces using electrochemical reaction has been studied. Chemical deposition of nitrobenzendiazonium (NiBD) cations is employed to modify silicon surfaces. Electrochemical reduction of nitro-group to primary amine-group have been conducted on the modified surfaces to activate silicon surfaces for the protein immobilization. Attachment of gold nanoparticles was used to prove the reduction. The current method was applied to selective activation of a silicon nanowire and immobilize proteins on the selected nanowire. It has been demonstrated that the use of chemical and electrochemical reaction NiBD is efficient for the selective immobilization of proteins on silicon nanowire surfaces.