首页|机械化学合成法制备具有高质子传导性能的SA@UiO-66-NH2

机械化学合成法制备具有高质子传导性能的SA@UiO-66-NH2

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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。
Efficient mechanochemical synthesis of SA@UiO-66-NH2 with high proton conduction
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.

proton conductionmetal-organic frameworkmechanochemical methodguest molecule

张姗、冯健萱、王洋、鹿颖

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辽宁工业大学化学与环境工程学院,辽宁锦州 121001

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

质子传导 金属有机框架 机械化学法 客体分子

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaBasic Scientific Research Project of Liaoning Provincial Department of Education

2207101921872021LJKMZ20220968

2024

分子科学学报
中国化学会

分子科学学报

CSTPCD
影响因子:0.434
ISSN:1000-9035
年,卷(期):2024.40(3)