Daisuke Tashima
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View article: Thickness analysis of activated carbon electrode of cocoa shell on electrochemical performance of supercapacitors
Thickness analysis of activated carbon electrode of cocoa shell on electrochemical performance of supercapacitors Open
Activated carbon was successfully synthesized from cocoa shells with 0.4 M KOH activator with a specific surface area of 360.290 m²/g. This activated carbon will be used as a base material for supercapacitor electrodes. The manufacture of …
View article: Investigation on EDLC in Aqueous Electrolyte for Application to Coin-Cell Type Storage Batteries
Investigation on EDLC in Aqueous Electrolyte for Application to Coin-Cell Type Storage Batteries Open
Activated carbon plays an important role in improving the performance of Electric Double Layer Capacitors (EDLCs), and research has been conducted on controlling the pore structure of activated carbon, which has a very high specific surfac…
View article: Recycling marine plastic waste to energy storage devices
Recycling marine plastic waste to energy storage devices Open
In this study, a method was developed for the management of marine plastic waste via the production of activated carbon. The specific surface area, micropore volume, and mesopore volume of marine-plastic-based activated carbon prepared at …
View article: Underlying mechanism of the driving force for generating spin currents thermally in a ferrimagnetic insulator due to a temperature gradient
Underlying mechanism of the driving force for generating spin currents thermally in a ferrimagnetic insulator due to a temperature gradient Open
We previously proposed the idea that the effective thermal-energy transfer from the phonon system to the spin system in liquid phase epitaxial (LPE) films of Bi-substituted yttrium iron garnet (Bi:YIG), a ferrimagnetic insulator, takes pla…
View article: Corrigendum: Characteristics of electric double-layer capacitors based on solid polymer electrolyte composed of sodium polyacrylate. (<i>2022 Journal of Physics: Conference Series 2368 012002</i>)
Corrigendum: Characteristics of electric double-layer capacitors based on solid polymer electrolyte composed of sodium polyacrylate. (<i>2022 Journal of Physics: Conference Series 2368 012002</i>) Open
Please see Article PDF for corrigendum text.
View article: Characteristics of electric double-layer capacitors based on solid polymer electrolyte composed of sodium polyacrylate.
Characteristics of electric double-layer capacitors based on solid polymer electrolyte composed of sodium polyacrylate. Open
Despite the low cost and high ionic conductivity of aqueous electrolytes, their practical applications are limited because a low withstand voltage of 1.2 V The energy density increases in proportion to the withstand voltage which is a cruc…
View article: Supercapacitors for the Next Generation
Supercapacitors for the Next Generation Open
Supercapacitors are presently applied in various devices and have the potential to be used in many fields in the future. For example, the use of supercapacitors is currently limited not only to automobiles, buses, and trucks, which have be…
View article: High-Temperature Degradation Tests on Electric Double-Layer Capacitors: The Effect of Residual Voltage on Degradation
High-Temperature Degradation Tests on Electric Double-Layer Capacitors: The Effect of Residual Voltage on Degradation Open
The demand for electric double-layer capacitors, which have high capacity and are maintenance-free, for use in a variety of devices has increased. Nevertheless, it is important to know the degradation behavior of these capacitors at high t…
View article: Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films
Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films Open
Raising the thermoelectric voltage in spin thermoelectric generators is an important subject. We investigated the substitution of bismuth for yttrium to increase spin pumping at the paramagnetic metal and ferrimagnetic insulator (PM/FMI) i…
View article: Modeling of Equivalent Circuit Analysis of Degraded Electric Double-Layer Capacitors
Modeling of Equivalent Circuit Analysis of Degraded Electric Double-Layer Capacitors Open
The demand for electric double-layer capacitors (EDLCs) has recently increased, especially for regenerative braking systems in electric or hybrid vehicles. However, using EDLCs under high temperature often enhances their degradation. Conti…
View article: Oxygen-Plasma Surface Treatment of an Electrode Sheet Using Carbon from Japanese Distilled Liquor Waste for Double-layer Capacitors
Oxygen-Plasma Surface Treatment of an Electrode Sheet Using Carbon from Japanese Distilled Liquor Waste for Double-layer Capacitors Open
Oxygen-plasma treatment was performed on an activated carbon sheet obtained from shochu (Japanese distilled liquor) waste using a high-frequency plasma generator. The capacitances of the activated carbon sheet electrode subjected to surfac…
View article: Magneto-optical properties of wider gap semiconductors ZnMnTe and ZnMnSe films prepared by MBE
Magneto-optical properties of wider gap semiconductors ZnMnTe and ZnMnSe films prepared by MBE Open
The II-VI based magnetic semiconductors with a direct and wide optical bandgap are expected to show high potential for optical applications utilizing short wavelength laser diodes (LDs), such as 532-nm green and 475-nm blue LDs. We have co…
View article: Electrochemical Capacitors
Electrochemical Capacitors Open
Electrochemical capacitors are being increasingly introduced in energy storage devices, for example, in automobiles, renewable energies, and mobile terminals. This book includes five high-quality papers that can lead to technological devel…
View article: Nitrogen and high oxygen-containing metal-free porous carbon nanosheets for supercapacitor and oxygen reduction reaction applications
Nitrogen and high oxygen-containing metal-free porous carbon nanosheets for supercapacitor and oxygen reduction reaction applications Open
Herein, the synthesis of heteroatom-containing graphene-like carbon nanosheets (HA-GCNs) by chemical activation of waste biomass, namely peanut shells. As characterized by a variety of analytical and spectroscopy techniques, the as-synthes…
View article: Effect of Ball Milling on the Electrochemical Performance of Activated Carbon with a Very High Specific Surface Area
Effect of Ball Milling on the Electrochemical Performance of Activated Carbon with a Very High Specific Surface Area Open
Activated carbon (AC) with a very high specific surface area of >3000 m2 g−1 and a number of course particles (average size: 75 µm) was pulverized by means of planetary ball milling under different conditions to find its greatest performan…
View article: Energy Storage Device from Industrial Waste; Development of Ecological Capacitor by Reusing Resources
Energy Storage Device from Industrial Waste; Development of Ecological Capacitor by Reusing Resources Open
1．はじめに
View article: Deterioration Factors of Electric Double-Layer Capacitors Obtained from Voltage Hold Test
Deterioration Factors of Electric Double-Layer Capacitors Obtained from Voltage Hold Test Open
A chemical analysis was carried out before and after a constant voltage hold test (applied at 2.5, 2.8, 3.0, and 3.2 V individually for 1 week) that was an acceleration deterioration examination to clarify the deterioration factors of elec…
View article: International Education Cooperation at the FIT Graduate School of Engineering and the Development of an International Engineering Curriculum through Cooperation
International Education Cooperation at the FIT Graduate School of Engineering and the Development of an International Engineering Curriculum through Cooperation Open
This report introduces an international education and research cooperation carried out between the FIT (Fukuoka Inst. of Tech.) graduate school of engineering and its foreign agreement universities against the backdrop of the regional char…
View article: THERMAL EFFICIENCY OF SMALL SCALE BIOGAS PLANT FOR BIO-METHANE PRODUCTION
THERMAL EFFICIENCY OF SMALL SCALE BIOGAS PLANT FOR BIO-METHANE PRODUCTION Open
In this research, a small-scale biogas plant using methane fermentation was developed.The electrical energy consumed by the heater/pump and the outside temperature of the small-scale biogas plant were logged from 1 July 2007 until 31 July …