An ultra-stable hafnium phosphonate MOF platform for comparing the proton conductivity of various guest molecules/ions

被引：32

作者：

Huang, Yan ^{[1
]}

Zhou, Fan ^{[1
]}

Feng, Jianshen ^{[2
]}

Zhao, Hongxia ^{[1
]}

Qi, Chao ^{[1
]}

Ji, Jinyan ^{[1
]}

Bao, Songsong ^{[2
]}

Zheng, Tao ^{[1
,3
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Nanjing 210094, Peoples R China

[2] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210023, Peoples R China

[3] Northwestern Polytech Univ, Yangtze River Delta Res Inst, Suzhou 215400, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2021年 / 57卷 / 10期

基金：

中国博士后科学基金; 美国国家科学基金会;

关键词：

METAL-ORGANIC FRAMEWORKS; DESIGN;

D O I：

10.1039/d0cc07375j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A porous hafnium-phosphonate MOF was synthesized using imidazole ionic liquids (ILs), namely PHOS-100(Hf), which has exceptional chemical stability in aqueous environments, even fuming acids. Its rigid framework with permanent porosity makes PHOS-100 an ideal candidate as a platform to fill with different functional guests such as acidic HCl, H2SO4, or H3PO4. The as-synthesized ILs@PHOS-100 exhibits significant humidity-dependent proton conductivities, increasing by four orders of magnitude from 45% RH to 95% RH at 25 degrees C. After post-treatment with strong acids, the acids@PHOS-100 show enhanced proton conduction at low relative humidities.

引用

页码：1238 / 1241

页数：4

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