Development of anhydrous purely organic super proton conductors

2017 Fiscal Year Final Research Report

• Project/Area Number: 26610096
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: Mori Hatsumi 東京大学, 物性研究所, 教授 (00334342)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 分子性物質 / プロトン伝導体 / 水素結合ネットワーク / 酸ー塩基型 / 分子運動

Outline of Final Research Achievements

Fuel cells that extract electric energy from hydrogen towards a clean energy society of the next generation attract much attention. At present, research on anhydrous organic solid proton electrolytes with environmentally harmonious and utilizing in the middle temperature range are required for fuel cell. In this work, we focused on co-crystals of imidazole-dicarboxylic acid as an anhydride acid-base-type purely organic proton conductors. Based on the relationship between the bulk intrinsic proton conductivity without grain boundary and the crystal structure, the multidimensional hydrogen bonding network and the small difference in pKa between acid and conjugated base greatly contributes to the proton conductivity and suggests next material design.

Free Research Field

分子性固体科学