Control of Electron-transfer Processes for Functionalization of Redox Active Thin Films

控制氧化还原活性薄膜功能化的电子转移过程

基本信息

批准号：
10450319
负责人：
OYAMA Noboru
金额：
$ 8.83万
依托单位：
Tokyo University of Agriculture and Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

The subject of this research supported by Grant-in-Aid for Scientific Research (B)(2) is to develop novel organic electron-and ion-conducting materials which are molecularly functionalized by introducing various chemical species which are redox active or interactive with ions.Derivatives of electroacitve, conducting polymers such as polyaniline and polypyrrole were synthesized by introducing electroacitve species such as ferrocene, metal ions and organosulfur moieties. These conducting polymers obtained in this research showed facile electron transfers between the conducting polymer main chains and introduced electroactive species. Furthermore, sulfonated polyaniline with copper ions showed enhanced electrocatalytic activity toward redox reactions of organosulfur compounds such as 2,5-dimercapto-1,3,4-thiadiazole.Thermoresponsive phase transition gels based on N-isopropylacrylamide (NIPA) were prepared for control of redox reactions of a ruthenium complex and catalytic activity of hemi … More n toward the electroreduction of hydrogen peroxide (H_2O_2). It was possible that apparent activity of hemin incorporated into the NIPA gels was controlled by changing temperature to induce the phase transition of the NIPA gels between swollen (at a low temperature) and shrunken (at a high temperature) states.Development of gel electrolytes with high ionic conductivity for lithium rechargeable batteries is another subject of this research. Acrylonitrile gel electrolytes with ion conductivity of more than 10^<-3>S/cm were successfully obtained by elaborately controlling the degree, length and structure of cross-links. Furthermore, by introducing ethylene oxide moiety (-CH_2-CH_2-O-) into methyl methacrylate-based polymer matrix, gel electrolytes which are capable of repressing formation of lithium dendrites at the interface between the gel electrolytes and metallic lithium electrode were obtained. These gel electrolytes are highly promising as an electrolyte for polymer lithium batteries with ultra high energy density. Less

这项研究由科学研究资助金 (B)(2) 支持，旨在开发新型有机电子和离子传导材料，通过引入具有氧化还原活性或与离子相互作用的各种化学物质来实现分子功能化通过引入电活性物质（例如二茂铁、金属离子和有机硫部分）合成了电活性导电聚合物（例如聚苯胺和聚吡咯）的衍生物。这项研究表明，导电聚合物主链和引入的电活性物质之间容易发生电子转移，此外，具有铜离子的磺化聚苯胺对有机硫化合物（例如2,5-二巯基-1,3,4-噻二唑）的氧化还原反应表现出增强的电催化活性。制备了基于 N-异丙基丙烯酰胺 (NIPA) 的热响应相变凝胶，用于控制钌络合物的氧化还原反应和半胱氨酸对过氧化氢 (H_2O_2) 电还原的催化活性掺入 NIPA 凝胶中的氯化血红素的表观活性可能是通过改变温度来控制的，以诱导 NIPA 凝胶在膨胀（在较低温度下）之间的相变。开发用于锂可充电电池的具有高离子电导率的凝胶电解质是本研究的另一个主题。通过精心控制交联的程度、长度和结构，并引入环氧乙烷部分(-CH_2-CH_2-O-)，成功获得了离子电导率大于10^-3S/cm的丙烯腈凝胶电解质。）进入基于甲基丙烯酸甲酯的聚合物基质中，凝胶电解质能够抑制凝胶电解质和金属锂之间界面处锂枝晶的形成这些凝胶电解质作为超高能量密度聚合物锂电池的电解质非常有前景。