| Major Research Areas：Metal nanoparticle materials |
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MIYAKE Laboratory
Preparation and Characterization of
Metal and Organic Nanocomposites
to Develop New Functional Materials |
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Research activity |
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We have been engaged in the study of metal nanoparticles to
control their properties and structure for over ten years now, since
before nanotechnology started attracting attention, and have
published the results of a leading world-class study related to
hybrid nanomaterials. Recently, we have been working on the
application of these results to highly functional catalysts such as
fuel cells and carbon nanotubes, and on the development of new
functions related to light and electrons. We are also developing
environment-friendly and energy-efficient materials. Although our
laboratory has a chemistry background, we expect various
researchers with other backgrounds such as physics, machinery
and biology to come to our laboratory to create a synergetic effect.
In addition, to promote exchange with other disciplines, we are
actively conducting collaborative studies with other universities
and companies, both in Japan and overseas.
1）Development of novel inorganic-organic hybrid
nanomaterials
We are developing inorganic-organic hybrid nanomaterials with multi-functions
that can respond to external stimuli such as light and an electric field. Inorganic
material with a distinctive surface electronic state, which is used as a core
material, is combined with flexible organic material that has diverse functions
enabling it to respond to light and an electric field. Our study includes metal
nanoparticles, functional ligands, conductive polymers, etc. We control the arrangement
of such materials to make their organization highly integrated, and create innovative
functional materials that are different from nanomaterials and bulk materials.
2）Development of metal nanoparticles with
controlled structures and compositions into
catalysts
We have developed a method to control the size, shape and
structure of metal nanoparticles by means of liquid phase ionic
reduction. We have also developed a method to compose hybrid
metal nanoparticles by accurately controlling the organization of
heterogeneous atoms. We develop innovative materials based on
the results of our studies. With conventional supported catalysts, it
was difficult to control active metal particles precisely since the
catalyst was reduced after the metal ion was impregnated on
supports. The technology for controlling the size and shape of
metal nanoparticles and the distance between them enables
creation of highly active and long life catalysts for fuel cells and
carbon nanotubes. |
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Composition of inorganic-organic hybrid nanomaterials
and development of highly functional interfaces
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-New nanomaterial with advantages
of both inorganic and organic materials-
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■Equipment
Transmission electron microscope, scanning electron microscope,
atomic force microscope, Fourier transform ion cyclotron
resonance mass spectrometer, nuclear magnetic resonance
analyzer, LB membrane builder, UV-visible spectrophotometer,
infrared spectrophotometer, Raman scattering measuring device,
X-ray diffractometer, elemental analyzer |
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| Voice |
We conduct research and development in accordance with our laboratory’s fundamental principles of carrying out
basic research that is useful to society (dream-inspiring research) and avoiding mimicry (policy of “world’s first”). At
the same time, we take into consideration any influence on human beings and the global environment, so that
materials developed by us will contribute to the further development of society. |
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| The main research achievements in the past five years |
| 1: |
Z. Shen, M. Yamada, and M. Miyake, Preparation of Single-crystalline
Platinum Nanowires with Small Diameters under Mild Conditions (High-lighted Article),
Chem.Commun., 245-247(2007). |
| 2: |
M. Yamada, Z. Shen and M. Miyake, Self-assembly of Discotic
Liquid Crystalline Molecule-modified Gold Nanoparticles: Control of 1D and Hexagonal
Ordering Induced by Solvent Polarity (High-lighted Article), Chem. Commun., 2569-2571
(2006). |
| 3: |
M. Yamada, S. Kon and M. Miyake, Synthesis and Size Control
of Pt Nanocubes with High Selectivity Using the Additive Effect of NaI, Chem.
Lett., 34(7), 1050-1051(2005). |
| 4: |
T. Shimizu, T. Teranishi, S. Hasegawa and M. Miyake, Size
Evolution of Alkanethiol-Protected Gold Nanoparticles by Heat-Treatment in the
Solid State, J. Phys. Chem. B, 107 (12), 2719-2724 (2003). |
| 5: |
T. Teranishi, A. Sugawara, T. Shimizu and M. Miyake, Planer Array of 1D Gold Nanoparticles on Ridge-and-Valley Structured Carbon, J. Amer. Chem. Soc. 124 (16),
4210-4211 (2002). |
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