佐藤次雄教授 Tsugio Sato Professor 東北大学多元物質科学研究所 Institute of Multidisciplinary Research for Advanced Materials Tohoku University 新機能無機物質探索研究センター Center for Explosion of New Inorganic Materials (CENIM)         無機材料パノスコピック形態制御ソルボサーマル反応環境調和機能 Inorganic materials Panoscopic morphology control Solvothermal reaction Environmentally harmony function ソルボサーマル反応によるセラミックスのパノスコピック形態制御 Panoscopic assembling of advanced ceramic materials by solvothermal reactions 無機材料の機能は、物質の形態に強く依存していることから無機物質のミクロ・メソ・マクロ構造の階層的（パノスコピック）制御が重要な課題となっております。特に、環境浄化・エネルギーの高効率利用・健康維持に貢献する環境調和機能無機材料の実用化を目指した研究への関心が高まっています。 The panoscopic control of the mico-, meso- and macro-structures of inorganic materials is an important subject, since their performance greatly changes depending on the morphology. Especially, great deal of attention has been attracted in research on the development of environmentally harmony inorganic materials related with energy saving, environment cleanup and human health. 高温水や非水溶媒を反応溶媒として利用するソルボサーマル反応を用い、温和な反応条件で無機物質の形態・結晶化度の精密制御を行い、環境浄化光触媒、紫外・近赤外遮蔽材料、自動車排ガス浄化触媒、アップコンバージョン蛍光体ナノ粒子、半導体ガスセンサー、マルチ機能化粧料等の環境調和機能無機材料の創製とその実用化に関する研究を展開しています。 The panoscopic assembling of inorganic materials by environmentally friendly solvothermal reactions under mild reaction conditions has been mainly investigated in order to develop the environmentally harmony functional inorganic materials, such as environmental cleanup photocatalysts, UV and NIR shielding materials, automobile effluent gas cleanup catalysts, up-conversion phosphor nanoparticles, semiconductor gas sensors, multifunctional cosmetic materials, etc. Fig.1. NIR shielding performance of morphology controlled Cs0.3WO3 nanoparticles formed in ethanol-acetic acid mixed solutions Fig.2. Diffusion light intensity (soft focus performance) of star-like ZnO particles formed in various concentrations of monoethanol amine aqueous solutions Fig.3. Three way catalyst performance of CaO and ZnO2 codoped CeO2 particles. Dashed line: CaO and ZnO2 codoped CeO2 Dotted line: standard CeO2 catalyst J. Chem. Soc. Japan, 118, 110 (2010). Adv. Sci. Technol., 63, 107 (2010). J.Mater.Chem.,21, 5099 (2011). Int. J. Nanotechnology, 10, 48 (2013). J. Soc. Inorg. Mater. Jpn., 20, 359 (2013). Adv. Mater.Res., 869, 141 (2014). J. Mater. Chem. A, 2, 20832 (2014). Adv. Mater.Res., 869, 141 (2014). [email protected] http://www.tagen.tohoku.ac.jp/modules/laboratory/index.php?laboid=45