Search Results - "Naragino, Hiroshi"

Electrochemical reduction of carbon dioxide in an aqueous solution using phosphorus-doped polycrystalline diamond electrodes by Naragino, Hiroshi, Saitoh, Yu, Honda, Kensuke

“…•Phosphorus-doped diamond electrode was used for electrochemical reduction of CO2.•P-doped diamond showed higher overpotential for H2 evolution than B-doped…”
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Corrosion‐Resistive and Low Specific Contact Resistance Ohmic Contacts to Semiconducting Diamonds Using Nanocarbon Electrodes by Mylo Valappil, Sreenath, Zkria, Abdelrahman, Ohmagari, Shinya, Naragino, Hiroshi, Kato, Hiromitsu, Yoshitake, Tsuyoshi

“…The realization of diamond‐based advanced devices is interrelated with the fabrication of practical ohmic contacts. Contrary to boron‐doped, the…”
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Statistical optimization modeling of organic dye photodegradation process using slag nanocomposite by Safo, Kingsley, Noby, Hussien, Matatoshi, Mitsuhara, Naragino, Hiroshi, El-Shazly, Ahmed H.

“…The photocatalytic activity of three solvothermal prepared steel slag nanocomposites, SSNP-10, SSNP-20, and SSNP-30, was tested in this work for methylene blue…”
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Hard coating of ultrananocrystalline diamond/nonhydrogenated amorphous carbon composite films on cemented tungsten carbide by coaxial arc plasma deposition by Naragino, Hiroshi, Egiza, Mohamed, Tominaga, Aki, Murasawa, Koki, Gonda, Hidenobu, Sakurai, Masatoshi, Yoshitake, Tsuyoshi

“…Ultrananocrystalline diamond (UNCD)/nonhydrogenated amorphous carbon (a-C) composite (UNCD/a-C) films were deposited on cemented carbide containing Co by…”
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Novel solar simulated photocatalytic heterolysis of pharmaceutical wastewater via slag nanocomposite immobilization: Optimization using response surface methodology by Safo, Kingsley, Noby, Hussien, Mitsuhara, Masatoshi, Naragino, Hiroshi, El-Shazly, Ahmed H.

“…Abstract This study converted slag from the steelmaking industry into an Fe2O3-rich nanocomposite using solvothermal technique for photodegradation of…”
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Fabrication of nitrogen-doped quenched-produced diamond electrodes on titanium substrates by coaxial arc plasma deposition by Nagano, Satoki, Naragino, Hiroshi, Hashiguchi, Hiroki, Hokazono, Shunsuke, Osman, Lama, Diab, Mohamed Ragab, Zkria, Abdelrahman, Yoshitake, Tsuyoshi

“…Nitrogen-doped quenched-produced diamond (N-doped Q-dia) thin films were deposited onto a titanium substrate by coaxial arc plasma deposition (CAPD). The…”
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Influence of different pretreatments on the adhesion of nanodiamond composite films on Ti substrates via coaxial arc plasma deposition by Osman, Lama, Ali, Ali M, Zkria, Abdelrahman, Naragino, Hiroshi, Yoshitake, Tsuyoshi

“…Abstract In this study, we report on the novel growth of nanodiamond composite (NDC) films on titanium (Ti) substrates using the coaxial arc plasma deposition…”
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Wetting state and mechanical property alteration for the Fe3Si films using rapid thermal annealing under various temperatures by Borwornpornmetee, Nattakorn, Traiprom, Thawichai, Kusaba, Takafumi, Sittimart, Phongsaphak, Naragino, Hiroshi, Paosawatyanyong, Boonchoat, Yoshitake, Tsuyoshi, Promros, Nathaporn

“…The current research demonstrates the modification of the wetting behavior and mechanical features as well as structure and morphology of Fe3Si films created…”
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Room-temperature hard coating of ultrananocrystalline diamond/nonhydrogenated amorphous carbon composite films on tungsten carbide by coaxial arc plasma deposition by Naragino, Hiroshi, Egiza, Mohamed, Tominaga, Aki, Murasawa, Koki, Gonda, Hidenobu, Sakurai, Masatoshi, Yoshitake, Tsuyoshi

“…Ultrananocrystalline diamond (UNCD)/nonhydrogenated amorphous carbon (a-C) composite films were deposited on unheated WC containing Co by coaxial arc plasma…”
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Electrically-switchable, permselective membranes prepared from nano-structured N-doped DLC by Honda, Kensuke, Yoshimatsu, Masayoshi, Kuriyama, Koichi, Kuwabara, Ryosuke, Naragino, Hiroshi, Yoshinaga, Kosuke, Kondo, Takeshi, Fujishima, Akira

“…In this study, we report a fabrication of a conductive DLC through-hole membrane with highly ordered nanopore arrays by template synthesis using an anodic…”
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Controllable Electrochemical Activities by Oxidative Treatment toward Inner-Sphere Redox Systems at N-Doped Hydrogenated Amorphous Carbon Films by Tanaka, Yoriko, Naragino, Hiroshi, Yoshinaga, Kohsuke, Nakahara, Akira, Kondo, Takeshi, Fujishima, Akira, Honda, Kensuke

“…The electrochemical activity of the surface of Nitrogen-doped hydrogenated amorphous carbon thin films (a-CNH, N-doped DLC) toward the inner sphere redox…”
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Influence of droplet-free ta-C coatings and lubrication conditions on tribological performance and mechanical characteristics of WC−Co by Murasawa, Koki, Diab, Mohamed Ragab, Wang, Mei, Naragino, Hiroshi, Yoshitake, Tsuyoshi, Egiza, Mohamed

“…•Arc ion plating deposited droplet-free ta-C coatings with high adhesion (Lcr = 41 N).•The hardness of ta-C coatings is 62 % higher than that of WC−Co,…”
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Porous TiO2 adsorbed with squaraine dye as visible-light-responsive photocatalyst by Yamazaki, Suzuko, Sonoda, Kotoe, Maruoka, Kiyotaka, Yamazaki, Yukari, Naragino, Hiroshi, Honda, Kensuke, Murafuji, Toshihiro, Sumimoto, Michinori

“…[Display omitted] •Porous TiO2 adsorbed with indole-squaraine dyes was synthesized.•ISQ-(COOH)2 was adsorbed on TiO2 by binding through a single COOH.•The…”
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Wear-resistant and stable low-friction nanodiamond composite superhard coatings against Al2O3 counter-body in dry condition by Diab, Mohamed Ragab, Murasawa, Koki, Ibrahim, Ahmed Mohamed Mahmoud, Naragino, Hiroshi, Yoshitake, Tsuyoshi, Egiza, Mohamed

“…Conventional machining lubricants pose environmental hazards and increase production costs. This study addresses this challenge by investigating nanodiamond…”
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Successful preparation of polyaniline‐modified polystyrene novel composite membrane by Sichali, Atusaye G., Noby, Hussien, Naragino, Hiroshi, Yoshitake, Tsuyoshi, El‐Shazly, Ahmed H.

“…Abstract This work describes the polyaniline (PANI) nanoparticles' impregnation into the polystyrene (PS) membrane and its impact on the different membrane…”
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Eco-friendly thick and wear-resistant nanodiamond composite hard coatings deposited on WC–Co substrates by Diab, Mohamed Ragab, Egiza, Mohamed, Murasawa, Koki, Naragino, Hiroshi, El-Shaer, Abdelhamid, Yoshitake, Tsuyoshi

“…Nanodiamond composite (NDC) films, synthesized using an environmentally friendly PVD coaxial arc plasma deposition technique on commercial cemented carbide (Co…”
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Disclosing mechanical and specific structural characteristics of thick and adherent nanodiamond composite hard coating deposited on WC−Co substrates by Murasawa, Koki, Diab, Mohamed R., Atta, Hoda, Naragino, Hiroshi, El-Shaer, Abdelhamid, Yoshitake, Tsuyoshi, Egiza, Mohamed

“…Nanodiamond composite (NDC) films, with a notable hardness of 65 GPa and a substantial thickness of 10 µm, were successfully fabricated on unheated WC−Co…”
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Revealing mechanical and structural properties of Si-doped nanodiamond composite films through applied biasing voltages on WC − Co substrates by Diab, Mohamed Ragab, Egiza, Mohamed, Murasawa, Koki, Ohmagari, Shinya, Naragino, Hiroshi, Yoshitake, Tsuyoshi

“…Silicon-doped nanodiamond composite (Si-NDC) films hold significant promise for advancing cutting tool performance in demanding applications. These films,…”
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Wetting state and mechanical property alteration for the Fe 3 Si films using rapid thermal annealing under various temperatures by Borwornpornmetee, Nattakorn, Traiprom, Thawichai, Kusaba, Takafumi, Sittimart, Phongsaphak, Naragino, Hiroshi, Paosawatyanyong, Boonchoat, Yoshitake, Tsuyoshi, Promros, Nathaporn

“…The current research demonstrates the modification of the wetting behavior and mechanical features as well as structure and morphology of Fe Si films created…”
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