Ice nucleation over nanosized TiO2 fine particles as an application to the artificial ice nucleation

2013 Fiscal Year Final Research Report

• Project/Area Number: 23651110
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: Nagoya University
• Principal Investigator: SUZUKI Shushi 名古屋大学, 工学(系)研究科(研究院), 准教授 (30322853)
• Project Period (FY): 2011 – 2012
• Keywords: 気象制御 / 超微粒子 / 氷晶核 / 酸化チタン / 紫外線 / 超親水化 / 微小検出

Research Abstract

Ice nucleation over nanosized TiO2 fine particles was studied as a model of aerosol which contributes artificial cloud formation at high temperature, especially over superhydrophobic surfaces of TiO2 under UV light irradiation. A home-made instrument was used for examining initial temperature of ice nucleation, providing a surprising result that the temperature of ice nucleation over TiO2 fine particles was lowered by UV light irradiation.

Research Products

• [Journal Article] Improvement of XANAM with a qPlus sensor for enhancing chemical sensitivity on surface analysis
  • Author(s): S. Suzuki, S. Mukai, Y. Koike, K. Kinoshita, K. Fujikawa, W.J. Chun, M. Nomura, and K. Asakura
  • Journal Title: Proc. 9th Int. Symp. on Atomic Level Characterizations for New Materials and Devices '13 (ALC'13)
• [Journal Article] Depression effect of UV light on ice nucleation over TiO_2 particles
  • Author(s): S. Suzuki
  • Volume: (in preparation)
• [Presentation] XANAM measurements with a qPlus sensor under X-ray irradiation (2013)
  • Author(s): S. Suzuki, S. Mukai, K. Fujikawa, W.J. Chun, M. Nomura, K. Asakura
  • Organizer: Joint conference of the 19th International Vacuum Congress (IVC-19), the International Conference on Nanoscience and Technology (ICN+T2013), the 15th International Conference on Solid Surfaces (ICSS-15)
  • Place of Presentation: Paris, France
  • Year and Date: 20130909-13
• [Presentation] Surface Elemental Analysis by XANAM with a qplus sensor (2013)
  • Author(s): S. Suzuki, S. Mukai, K. Fujikawa, W.J. Chun, M. Nomura, K. Asakura
  • Organizer: The 16th International Symposium on Relations between Homogeneous and Heterogeneous Catalysis (ISHHC-16)
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20130804-09
• [Presentation] Oxide Surface Chemistry Combined with Nanoparticle Chemistry in Solution (2011)
  • Author(s): S. Suzuki
  • Organizer: Seminar at Fritz-Haber-Institut der Max-Planck -Gesellschaft
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2011-09-23
• [Remarks]
  • URL: http://researchmap.jp/read0065356/
• [Remarks]
  • URL: http://profs.provost.nagoya-u.ac.jp/view/html/100000120_ja.html?k=%E7%A7%80%E5%A3%AB