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Challenge for Vapor-Liquid-Solid like crystal growth using nomal solvents

Research Project

Project/Area Number 21K18843
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 27:Chemical engineering and related fields
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Inasawa Susumu  東京農工大学, 工学(系)研究科(研究院), 教授 (30466776)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords液液界面 / 気液界面 / 移動現象 / コロイド粒子 / エマルション / 粒子濃縮 / Vapor-Liquid-Solid / コロイド結晶 / 水-油界面 / 物質移動 / 界面現象 / 流れ / Vapor-Liquid-Solid成長 / 結晶化 / 液滴触媒
Outline of Research at the Start

Vapor-Liquid-Solid(VLS)成長では、蒸気(Vapor)で供給される半導体の原子が金属融液(Liquid)に溶け込み、過飽和状態を経て固体ワイヤー(Solid)が自発的に生成する。現在ではナノワイヤーやナノチューブなど細長いナノ材料の代表的な作製手段である。しかし、金属融液を用いるため耐高温の材料が対象の結晶成長法である。
本質的に必要な環境を常温で実現すれば、汎用溶媒でもVLS法と同様の結晶化を起こせるのではないか。液滴を介した細長いコロイド結晶の作製を通じて、非耐熱の材料も対象とした汎用性の高い結晶成長法として検討する。またVLS成長のメカニズムも検証する。

Outline of Final Research Achievements

For Vapor-Liquid-Solid like crystal growth of colloidal particles from droplets of a normal solvent, we need to understand mass transfer processes and flows around water-oil or air-water interfaces. Several of our findings are as follows. (1) Large water-oil interfaces induce restricted flow,(2) stiffness of particulate shells trapped on water-oil interfaces varies depending on the ionic concentration in water phase, and (3) mass transfer of molecules from water to oil can be very slow. Our findings would be very useful for further studies in this field.

Academic Significance and Societal Importance of the Research Achievements

水と油の界面や、空気と液体の界面は日常生活にありふれている。しかし、その界面が物質移動や流れにどのように影響するかについての検討は十分にされてこなかった。本研究では、これら界面の周りで起こる現象を対象に検討を進め、界面付近での粒子輸送や、流れの変化、塩やポリマーなど添加剤が入った際の効果など複数の成果を得た。研究に用いた手法も、これまで観察が難しかった界面現象を把握する上で有用な手段として活用できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (20 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (12 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results)

  • [Int'l Joint Research] Nottingham Trent University(英国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Dynamics of drying colloidal suspensions, measured by optical coherence tomography2024

    • Author(s)
      Abe Kohei、Atkinson Patrick Saul、Cheung Chi Shing、Liang Haida、Goehring Lucas、Inasawa Susumu
    • Journal Title

      Soft Matter

      Volume: 20 Issue: 10 Pages: 2381-2393

    • DOI

      10.1039/d3sm01560b

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Position-dependent rates of film growth in drying colloidal suspensions on tilted air?water interfaces2023

    • Author(s)
      Abe Kohei、Inasawa Susumu
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 25 Issue: 23 Pages: 15647-15655

    • DOI

      10.1039/d3cp00966a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Drying kinetics of colloid-polymer suspensions confined in a two-dimensional geometry2023

    • Author(s)
      Tanaka Masahiko、Inasawa Susumu
    • Journal Title

      Colloids and Surfaces A: Physicochemical and Engineering Aspects

      Volume: 672 Pages: 131693-131693

    • DOI

      10.1016/j.colsurfa.2023.131693

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spontaneous transfer of amphiphilic molecules from evaporating water to involatile oil and its effects on the rate of water evaporation2023

    • Author(s)
      Hasegawa Katsuyuki、Inasawa Susumu
    • Journal Title

      International Journal of Heat and Mass Transfer

      Volume: 208 Pages: 124053-124053

    • DOI

      10.1016/j.ijheatmasstransfer.2023.124053

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Deformation and coalescence of particle-stabilized oil droplets in drying aqueous NaCl solutions2022

    • Author(s)
      Abe Kohei、Inasawa Susumu
    • Journal Title

      Colloids and Surfaces A: Physicochemical and Engineering Aspects

      Volume: 632 Pages: 127816-127816

    • DOI

      10.1016/j.colsurfa.2021.127816

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of liquid-liquid interfaces on flow of oil-in-water emulsions in a capillary tube2022

    • Author(s)
      Tajima Chisato、Inasawa Susumu
    • Journal Title

      Chemical Engineering Science

      Volume: 250 Pages: 117394-117394

    • DOI

      10.1016/j.ces.2021.117394

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Scaling law for the kinetics of water imbibition in polydisperse foams2021

    • Author(s)
      Tsuritani Kanoko、Inasawa Susumu
    • Journal Title

      RSC Advances

      Volume: 11 Issue: 52 Pages: 33093-33101

    • DOI

      10.1039/d1ra06392h

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] In-situ measurement of particle-concentration profiles in a drying suspension with optical coherence tomography2023

    • Author(s)
      Abe Kohei、Atkinson Patrick Saul、Cheung Chi Shing、Liang Haida、Goehring Lucas、Inasawa Susumu
    • Organizer
      13th Asian Coating Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Drying kinetics of aqueous colloid-polymer suspensions impeded by permeation and condensation of polymer molecules in packed colloidal particles2023

    • Author(s)
      Masahiko Tanaka and Susumu Inasawa
    • Organizer
      13th Asian Coating Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transport and packing in drying colloidal suspensions2023

    • Author(s)
      Susumu Inasawa
    • Organizer
      13th Asian Coating Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water-in-oil(W/O)型エマルションでの水滴凍結の伝播速度2023

    • Author(s)
      小松ひいろ、稲澤晋
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 液滴が円管内流れの速度場に与える影響評価2023

    • Author(s)
      古舘知佳、稲澤晋
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水の蒸発に起因した粒子膜の圧縮と液固相変化2023

    • Author(s)
      田中優彦、稲澤晋
    • Organizer
      化学工学会第54回秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 斜めの気液界面に対する粒子充填速度論2023

    • Author(s)
      安倍紘平、稲澤晋
    • Organizer
      化学工学会第88年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 糖添加した粒子分散液での蒸発遅延効果2023

    • Author(s)
      田中優彦、稲澤晋
    • Organizer
      化学工学会第88年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Reactions and flows affected by liquid-gas or liquid-liquid interfaces2022

    • Author(s)
      Susumu Inasawa
    • Organizer
      14th Japan-Korea Symposium on Materials and Interfaces
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Drying and flow of phase-separated liquids2022

    • Author(s)
      Susumu Inasawa
    • Organizer
      12th Asia Coating Workshop
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reversibility and inhomogeneity of packed films in drying of colloidal suspensions2022

    • Author(s)
      Masahiko Takana and Susumu Inasawa
    • Organizer
      12th Asia Coating Workshop
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Flow effects on the morphology of silicon materials produced in a gas phase reaction of SiCl42022

    • Author(s)
      Susumu Inasawa
    • Organizer
      IChES2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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