Proton pumping in asymmetric channels in crystals

Research Project

Project/Area Number	21655001
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Physical chemistry
Research Institution	Hokkaido University
Principal Investigator	TAKEDA Sadamu 北海道大学, 大学院・理学研究院, 教授 (00155011)
Project Period (FY)	2009 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥3,350,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥150,000) Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2010: ¥900,000 (Direct Cost: ¥900,000) Fiscal Year 2009: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords	結晶内プロトンポンプ / プロトン伝導 / ラチェット機構 / 固体NMR / 誘電特性 / プロトン移動
Research Abstract	Unidirectional motion of a proton is completely impossible by the random fluctuation under the thermal equilibrium. It is a breakthrough of science and technology that artificial small perturbation induces a long range unidirectional transport of proton in solids. In this research project, we found a series of materials that exhibit very high proton conductivity in asymmetric nano channel under moderate condition. And we have obtained an evidence of unidirectional proton transfer under small alternate current voltage(~ 0. 1V/mm).