・Heaviest Stable Element・High Refractive Index・Low or Nontoxicity・Inexpensive36High-refractive-index PolymersPolymerizationBi MonomersTurn-on Type Fluorescence PolymersBiBiBiBiBi1415CNPOSSiGeAsSnSbPbBiBiPolymer FilmReflective Index (nD) = 1.70Applicable to fluoride ion sensor.<Size tuning of nanomaterials by Flame Spray Pyrolysis>In the flame, Pd and TiO2particles grow by their collisions and coagulations. By reducing the Pd/Tiratio, the collision of Pd species can be limited while Pd-Ticollisions are dominant, which allows to control the Pd size from nano to the single atom.However, C–Bi bond is unstable.Development of bismuth-containing organic-inorganic hybrid materials are limited.Pd nanoparticles(# of Pd atoms < ~100)(# of Pd atoms, ~10)Pd lustersAtomically dispersed Pd(# of Pd atom = 1)ContentContent：Flame Spray pyrolysis (FSP): Variety of nanoparticles can be Flame Spray pyrolysis (FSP): Variety of nanoparticles can be produced by burning organometallic precursors dissolved in organic produced by burning organometallic precursors dissolved in solvents. It allows to put all the elements in the periodic table exceptorganic solvents. It allows to put all the elements in the periodic forthe radioactive andtoxicones.table except for the radioactive and toxic ones.FSP has already utilized in some industries (e.g. Johnson Matthey). FSP has already utilized in some industries (e.g. Johnson This means that noble materials made in our lab can be put to Matthey). This means that noble materials made in our lab can be practical applications immediately.put to practical applications immediately.Currently, we are working on the following fields.Currently, we are working on the following fields.1.Environmental remediation and conversion of solar energy to 1. Environmental remediation and conversion of solar energy to 2.Catalytic conversion of raw materials of to value-added products.2. Catalytic conversion of raw materials of to value-added products.chemical energy by photocatalysis.chemical energy by photocatalysis.Appealing point：Special objectivesComposition: metal oxides, metals (e.g. Ag, Au), compositesComposition: metal oxides, metals (e.g. Ag, Au), compositesSize: few nanometer –100 nm.Size: few nanometer–100nm.Production rate: 1g/h ( >1 kg/h in a practical scale)Production rate: 1g/h ( >1 kg/h in a practical scale) Yamagata UniversityGraduate School of Science and Engineering Research Interest ：Flame synthesis, NanomaterialsYamagata University Graduate School of Science and Engineering E-mail ：k_fujiwara@yz.yamagata-u.ac.jpResearch InterestTel ：+81-238-26-3102Flame synthesis, NanomaterialsContent：ContentBismuthistheheavieststableelementandexhibitsahighrefractiveindex,radiation-absorbing,andlow-toxicity.However, Bismuth is the heaviest stable element and exhibits a high refractive index, radiation-absorbing, and low-toxicity. developmentofthebismuth-containingorganicmaterialsislimitedHowever, development of the bismuth-containing organic sofarduetothelowbondenergyofcarbon–bismuth(C–Bi)bond.materials is limited so far due to the low bond energy of Ourresearchgroupdevelopsnovelfunctionalpolymerspossessingcarbon–bismuth (C–Bi) bond. Our research group develops bismuthatombythedesignofstablebismuthmonomersandtheirnovel functional polymers possessing bismuth atom by the polymerizations.Wedevelopedpolymerfilmsbythermal-orphoto-design of stable bismuth monomers and their polymerizationofradicalpolymerizablebismuthmonomers.Thepolymerizations. We developed polymer films by thermal- or resultingpolymerfilmsexhibitedhigh-refractive-index.photo-polymerization of radical polymerizable bismuth monomers. The resulting polymer films exhibited high-Wealsodevelopedπ-conjugatedpolymerspossessingbismuth.refractive-index.Thesepolymersturnedtophoto-emissivebytheadditionof We also developed π-conjugated polymers possessing tetrabutylammoniumfluorideasafluorineanionsource,whilethebismuth. These polymers turned to photo-emissive by the pristinepolymerswerenotphoto-emissive.Accordingly,theseaddition of tetrabutylammonium fluoride as a fluorine anion polymersareexpectedtoaturn-ontypefluorideionsensormaterial.source, while the pristine polymers were not photo-emissive. Accordingly, these polymers are expected to a turn-on type Appealing point：fluoride ion sensor material.16SeTePoWearechallengingthesynthesisofnovelfunctionalpolymersSpecial objectivesbasedonorganometallicchemistryandorganicelectrochemistry. We are challenging the synthesis of novel functional polymers based on organometallic chemistry and organic Yamagata UniversityGraduate School of Science and Engineering electrochemistry. Research Interest ：Polymer Chemistry, Organic ElectrochemistryYamagata University Graduate School of Science and Engineering E-mail ：y.matsumura@yz.yamagata-u.ac.jpResearch InterestTel ：+81-238-26-3092Polymer Chemistry, Organic ElectrochemistryFax：+81-238-26-3092E-mail ・ y.matsumura@yz.yamagata-u.ac.jpTel ・ +81-238-26-3092Fax ・ +81-238-26-3092HP ：http://ochiai.yz.yamagata-u.ac.jpHP・http://ochiai.yz.yamagata-u.ac.jpE-mail ・ k_fujiwara@yz.yamagata-u.ac.jpHP ：http://fujiwaralab.yz.yamagata-u.ac.jp/fujiwaralab/Tel ・ +81-238-26-3102HP・http://fujiwaralab.yz.yamagata-u.ac.jp/fujiwaralab/Catalytic and Functional Nanomaterials by Flame Aerosol SynthesisCatalytic and Functional Nanomaterials by Flame Aerosol SynthesisAssistant Professor Kakeru FujiwaraAssistant Professor KakeruFujiwaraSynthesis of Functional Polymers Possessing Bismuth AtomSynthesis of Functional Polymers Possessing Bismuth AtomAssistant ProfessorYoshimasa MatsumuraAssistant Professor Yoshimasa MatsumuraBismuth
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