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首页> 外文期刊>Crystal growth & design >High Proton Conduction in Two Co-II and Mn-II Anionic Metal-Organic Frameworks Derived from 1,3,5-Benzenetricarboxylic Acid
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High Proton Conduction in Two Co-II and Mn-II Anionic Metal-Organic Frameworks Derived from 1,3,5-Benzenetricarboxylic Acid

机译:1,3,5-苯三羧酸衍生的两个Co-II和Mn-II阴离子金属有机骨架中的高质子传导

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摘要

Isostructural Coll and Mnll organic frameworks with anionic frameworks and counterions (Me2NH2)(+), namely {[M2Cl2(BTC)(4/3)]center dot(Me2NH2)(+)(2)center dot 4/3H(2)O} (M = Co (1) and Mn (2)), have been constructed by one-pot synthesis. Complexes 1 and 2 take paddlewheel -like dinuclear metal cluster-based three-dimensional structures. Thermogravimetric analysis and variable-temperature powder X-ray diffraction spectra suggested that 1 displays better thermal stability than 2. Both exhibit relatively high proton conductivities at 65% relative humidity (RH) and room temperature (sigma > 2.5 X 10(-4) S cm(-1)); however, complex 1 possesses the better cycling capability and stability with E-a = 0.21 eV under 65% RH.
机译:具有阴离子骨架和抗衡离子(Me2NH2)(+)的同构Coll和Mnll有机骨架,即{[M2Cl2(BTC)(4/3)]中心点(Me2NH2)(+)(2)中心点4 / 3H(2) O}(M = Co(1)和Mn(2)),是通过一锅法合成的。配合物1和2采用桨轮状双核金属簇为基础的三维结构。热重分析和可变温度粉末X射线衍射光谱表明,1表现出比2更好的热稳定性。两者在相对湿度(RH)和室温为65%时均表现出较高的质子电导率(sigma> 2.5 X 10(-4)S厘米(-1));但是,配合物1具有更好的循环能力和稳定性,在65%RH下E-a = 0.21 eV。

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