采用液相插层法,分别制备了高岭土/二甲基亚砜(K-DMSO)和高岭土/醋酸钾(K-KAc)插层杂化材料。探究了插层时间以及高岭土在反应混合物中的质量分数对杂化材料插层率的影响。通过交流阻抗法对杂化材料的电导率进行测定。结果表明:K-KAc插层杂化材料具有较好的导电性,在湿度为100%时,K-DMSO在室温下的电导率即可达到10-3S/cm以上。
The hybrid materials of kaolin/dimethyl sulfoxide (K-DMSO) and kaolin/potassium acetate (K-KAC) were prepared by liquid phase intercalation.The effects of intercalation time and the mass fraction of kaolin in the reaction mixture on the intercalation rate of hybrid materials were investigated.The conductivity of the hybrid material was measured by AC impedance method.The experimental results showed that the K-KAC intercalated hybrid material had good conductivity.When the humidity ws 100%,the conductivity of K-DMSO at room temperature could reach more than 10-3S/cm.
[1] Ramaswamy P,Wong N E,Shimizu G K H.A water stable magnesium MOF that conducts protons over 10-2S/cm[J].Chemical Society Reviews,2015,137(24):7640-7643.
[2] Sanjog S N,Sreekuttan M U,Amitosh S,et al.Two-in-one:inherent anhydrous and water-assisted high proton conduction in a 3D metal-organic framework[J].Angewandte Chemie International Edition,2014,53:2638-2642.
[3] Zhao Xuyan,Wu Yuen.Synthesis of high-performance and low-loading PtCo/C proton exchange membrane fuel cell catalysts[J].Chinese Journal of Inorganic Chemistry,2021,37(8):1457-1463.
[4] Bao S S,Shimizu,G K H,Zheng L M.Proton conductive metal phosphonate frameworks[J].Chemical Reviews,2019,378:577-594.
[5] Meng X,Wang H N,Song S Y,et al.Proton-conducting crystalline porous materials[J].Chemical Society Reviews,2017,46:464-480.
[6] Ramaswamy P,Wong N E,Shimizu G K.MOFs as proton conductors-challenges and opportunities[J].Chemical Society Reviews,2014,43:5913-5932.
[7] Zhang F M,Dong L Z,Qin J S,et al.Effect of imidazole arrangements on proton-conductivity in metal-organic frameworks[J].Journal of the American Chemical Society,2017,139:6183-6189.
[8] Inukai M,Horike S,Itakura T,et al.Encapsulating mobile proton carriers into structural defects in coordination polymer crystals:high anhydrous proton conduction and fuel cell application[J].Journal of the American Chemical Society,2016,138:8505-8511.
[9] Xing X S,Fu Z H,Zhang N N,et al.High proton conduction in an excellent water-stable gadolinium metal-organic framework[J].Chemical Communications,2019,55:1241-1244.
[10] Li X,Liu Q,Cheng H,et al.Mechanism of kaolinite sheets curling via the intercalation and delamination process[J].Journal of Colloid & Interface Science,2015,444:74.
[11] Éva Makó,Kristóf J,Horváth E,et al.Mechanochemical intercalation of low reactivity kaolinite[J].Applied Clay Science,2013,83-84(5):24-31.
[12] Taylor J M,Dawson K W,Shimizu G K H.A water-stable metal-organic framework with highly acidic pores for proton-conducting applications[J].Journal of the American Chemical Society,2013,135:1193-1196.
[13] Emilio P,Cyrille T,Geoffrey G,et al.High proton conduction in a chiral ferromagnetic metal-organic quartz-like framework[J].Journal of the American Chemical Society,2011,133:15328-15331.
[14] Bazaga-Garcia M,Colodrero R M P,Papadaki M,et al.Guest molecule-responsive functional calcium phosphonate frameworks for tuned proton conductivity[J].Journal of the American Chemical Society,2014,136:5731-5739.
基金资助
江苏警官学院科学研究面上项目(2017SJYZQ02)
PDF
