Updated on 2023/12/03


Research Council (Research Organization), Sustainable Energy & Environmental Society Open Innovation Research Organization
Job title
Junior Researcher(Assistant Professor)
Ph.D(engineering) ( Nagoya University )
ME.D ( Nagoya University )

Education Background


    Nagoya University  

Research Areas

  • Inorganic materials and properties / Thermal engineering / Energy chemistry


  • 東京財団特別賞




  • Effect of growth temperature and ethanol flow rate on synthesis of single-walled carbon nanotube by alcohol catalytic chemical vapor deposition using Ir catalyst in hot-wall reactor

    Ai Misaki, Takahiro Saida, Shigeya Naritsuka, Takahiro Maruyama

    Japanese Journal of Applied Physics   60 ( 1 ) 015003 - 015003  2021.01  [Refereed]

    Authorship:Lead author

     View Summary


    We carried out synthesis of single-walled carbon nanotubes (SWCNTs) in the hot-wall reactor by alcohol catalytic chemical vapor deposition using an Ir as a catalyst. By optimizing the ethanol flow rate, SWCNTs were grown at the growth temperature between 700 °C and 900 °C. Raman results using the four excitation wavelengths of 488, 532, 671 and 785 nm showed that the diameters of most SWCNTs grown from an Ir catalyst were less than 1.0 nm at 700 °C and 800 °C. When the growth temperature was above 800 °C, vertically-aligned SWCNTs were grown, and the thickness reached 1.8 μm after the growth at 900 °C for 60 min under an ethanol flow rate of 500 sccm. However, at 900 °C, the diameters of SWCNTs were enlarged and most of them were distributed above 1 nm. Our result demonstrates that an Ir catalyst is useful to obtain small-diameter SWCNTs on a large scale.


  • Calcium bromide hydration for heat storage systems

    Ai Niwa, Noriyuki Kobayashi

    Cogent Engineering   2 ( 1 ) 1064218 - 1064218  2015.12  [Refereed]

    Authorship:Lead author, Corresponding author


  • Study on Compact and High Power Storage System by Means of a Liquid-Solid Reaction System using CaCl2 and Water for a Motive Use

    NIWA Ai, KOBAYASHI Noriyuki

    Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers   32 ( 1 ) 1 - 10  2015  [Refereed]

    Authorship:Lead author

     View Summary

    In this study, we have developed a heat storage system, which is able to store waste heat and release it to an appropriate heating equipment elsewhere, in order to improve utility of waste heat and thus reduce environmental pollutants. The heat of solution of a solid-liquid reaction was adopted for the heat storage system. In this system, the reactant was also used as heat transfer medium and being sent to heating parts. Therefore, the evaporator that has been used in conventional chemical heat storage can be omitted to reduce the device size and for motive use. The heat value, heat release rate and cyclic performance of CaCl2/H2O system were measured. The results indicated that the heat of solution was proportional to the mass concentration as far as the reaction reached its saturation solubility under ambient temperature. In addition, the heat value per unit mass was higher at lower concentration than that at higher concentration. During the first 1 minute, the heat output of 5.06kW/L- H2O was obtained for CaCl2 (s) /H2O (l) when the reaction reached its saturated solubility. It was found no degradation in chemical composition after 50 times of cyclic operation.

    DOI CiNii

  • Basic Characteristics of Heat Discharge in a Heat Storage System using Solid–Liquid Hydration Reaction of CaCl2, CaBr2 or LiBr

    Niwa Ai, Kobayashi Noriyuki, Hayase Tomohiro, Fuse Takuya

    KAGAKU KOGAKU RONBUNSHU   40 ( 6 ) 486 - 491  2014  [Refereed]

    Authorship:Lead author

     View Summary

    A heat storage system without an evaporator promises high-density heat storage and a high rate of heat output since the solid-liquid product that is formed will itself be transferred as a heat medium to an object that requires heat. In this study, we compared the characteristics of this system using solid CaCl2, CaBr2, or LiBr with liquid H2O as reactants for the storage system. The exothermic heat produced for each reaction was measured and a relationship between the equivalence ratio and the reaction heat was observed. Heat values of 622, 534, and 481 kJ/L were obtained for CaBr2/H2O, LiBr2/H2O, and CaCl2/H2O, respectively. CaBr2 has the highest solubility and heat storage density of the three materials, as well as the highest heat value. The rate of heat output using CaBr2/H2O reached 10 kW/L 10 s after the reaction was initiated, and thus CaBr2 is considered the most effective material for this system.

    DOI CiNii


  • “Single-walled carbon nanotube synthesis by hot-wall CVD using Ir catalyst”

    AI Misaki


    Presentation date: 2020.08

  • 「溶解現象を用いた移動型小型蓄熱技術」

    三崎 亜衣

    名城大ブランド構築プログラム 第5回ナノマテリアルセミナー 

    Presentation date: 2018.10

  • Basic properties of the endothermic reaction in salt dissolution for Heat storage system

    Ai NIWA


    Presentation date: 2011.10

    Event date:


  • Growth of single-walled carbon nanotubes using Ir catalyst prepared by dip-coating process

    KONDO Shu, MISAKI Ai, SHARMA Kamal P, SAIDA Takahiro, NARITSUKA Shigeya, MARUYAMA Takahiro

    フラーレン・ナノチューブ・グラフェン総合シンポジウム講演要旨集   60th  2021


  • Synthesis of single-walled carbon nanotube on Si substrates by alcohol catalytic chemical vapor deposition using Ir catalyst in hot-wall reactor

    三崎亜衣, 丸山隆浩, 丸山隆浩

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   68th  2021


  • Growth of vertically aligned single-walled carbon nanotubes on SUS foil

    近藤秀, 山本大貴, 三崎亜衣, SHARMA Kamal P, 才田隆広, 成塚重弥, 丸山隆浩

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   68th  2021


  • Effect of ethanol gas flow on synthesis of single-walled carbon nanotube by a hot-wall chemical vapor deposition reactor using Ir catalysts

    MISAKI Ai, SUZUKI Tomoko, MARUYAMA Takahiro

    フラーレン・ナノチューブ・グラフェン総合シンポジウム講演要旨集   57th  2019


  • 電子ビーム蒸着法およびパルスアークプラズマ法により作製したCo触媒を用いたアルコールCVD法による単層カーボンナノチューブ成長:エタノール流量依存性

    三崎亜衣, 岡田拓也, 丸山隆浩, 丸山隆浩

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   79th  2018



Teaching Experience

  • Applied chemistrry laboratory Ⅱ

    Meijo University  


  • 留学生のための専門講義の日本語(化学)