Phosphonates Meet Metal-Organic Frameworks: Towards CO2 Adsorption

被引：6

作者：

da Silva, Cleiser Thiago P. ^{[1
,2
]}

Howarth, Ashlee J. ^{[1
,3
]}

Rimoldi, Martino ^{[1
]}

Islamoglu, Timur ^{[1
]}

Rinaldi, Andrelson W. ^{[2
]}

Hupp, Joseph T. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA

[2] Univ Estadual Maringa, Lab Mat Chem & Sensors, Av Colombo 5790, BR-87020900 Maringa, PR, Brazil

[3] Concordia Univ, Dept Chem & Biochem, 7141 Sherbrooke St W, Montreal, PQ H4B 1R6, Canada

来源：

ISRAEL JOURNAL OF CHEMISTRY | 2018年 / 58卷 / 9-10期

基金：

美国国家科学基金会;

关键词：

metal-organic frameworks; porous phosphonates; carbon dioxide capture; zirconium-based MOFs; CARBON-DIOXIDE CAPTURE; CRYSTAL-STRUCTURE; PROTON CONDUCTIVITY; POROUS MATERIALS; PORE-SIZE; DESIGN; MOFS; STABILITY; PH; FUNCTIONALIZATION;

D O I：

10.1002/ijch.201800129

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we report a new highly microporous zirconium phosphonate material synthesized under solvothemal conditions. The specific Brunauer-Emmett-Teller (BET) surface area of the "unconventional metal-organic framework" (UMOF) is measured to be similar to 900 m(2)/g, after following an appropriate activation protocol. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) shows that the material bears a free -OH functionality on the phosphonate linker that may interact with CO2. CO2 adsorption isotherms were collected and a measured heat of adsorption of 31 kJ/mol was obtained. In addition, adsorption isotherms of CO2, N-2, and CH4 at 298 K combined with Ideal Adsorbed Solution Theory (IAST) show that the material can be expected to display high selectivities for uptake of CO2 versus N-2 or CH4.

引用

页码：1164 / 1170

页数：7

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