机械化学合成法制备具有高质子传导性能的SA@UiO-66-NH2
Efficient mechanochemical synthesis of SA@UiO-66-NH2 with high proton conduction
张姗 1冯健萱 1王洋 2鹿颖2
作者信息
- 1. 辽宁工业大学化学与环境工程学院,辽宁锦州 121001
- 2. 东北师范大学化学学院,多金属氧酸盐教育部重点实验室,吉林长春 130024
- 折叠
摘要
通过机械化学法,在UiO-66-NH2合成的过程中成功地引入氨基磺酸(SA).SA@UiO-66-NH2中,SA与锆金属中心之间通过双齿桥联方式结合形成的酸性阳离子(—S=NH2+)可以释放质子,同时SA积极参与氢键网络的构建,从而加速质子传导.在相对湿度95％和358 K下,SA@UiO-66-NH2的质子电导率可达1.42×10-2 S·cm-1,比母体框架UiO-66-NH2的质子电导率高4个数量级.同时,这种高质子传导率可以保持至少90 h.
Abstract
Through the mechanochemical method,sulfamic acid(SA)is successfully introduced into UiO-66-NH2 to form SA@UiO-66-NH2.In SA@UiO-66-NH2,the acidic cationic sulfiliminium(—S=NH2+)moiety formed by the bridging bidentate binding mode between SA and the zirconium metal center can re-lease protons,and SA actively participates in the construction of hydrogen-bonded network,thereby accel-erating the proton conduction.At 95％RH(relative humidity)and 358 K,the proton conductivity of SA@UiO-66-NH2 can reach 1.42 × 10-2 S·cm-1,which is four orders of magnitude higher than that of the parent framework UiO-66-NH2.Meanwhile,this high proton conductivity can be maintained for at least 90 h.
关键词
质子传导/金属有机框架/机械化学法/客体分子Key words
proton conduction/metal-organic framework/mechanochemical method/guest molecule引用本文复制引用
基金项目
National Natural Science Foundation of China(22071019)
National Natural Science Foundation of China(21872021)
Basic Scientific Research Project of Liaoning Provincial Department of Education(LJKMZ20220968)
出版年
2024
NETL
NSTL
万方数据