期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 6, 页码 7548-7556出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b20771
关键词
microporous organic frameworks; adamantane; stability; gas adsorption; carbon-dioxide capture
资金
- National Natural Science Foundation of China [21476051, 21706039]
- Natural Science Foundation of Guangdong Province [2017A030310300]
- Science and Technology Program of Guangzhou City [201704030075]
- Innovation Team Project in Universities of Guangdong province [2017GKCXTD006]
- Spanish Ministry of Economy and Competitivity (MINECO) [RYC-2014-16759]
- Proyecto de Investigacion en el Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia [MAT201788382-P]
Three microporous organic frameworks (hereafter denoted as MPOF-Ads) based on a rigid adamantane core have been successfully synthesized via Sonogashira-Hagihara poly-condensation coupling in high yields, 83.7-94.6%. The obtained amorphous MPOF-Ads networks have high Brunauer-Emmett- Teller surface areas (up to 737.3 m(2) g(-1)), narrow pore size distribution (0.95-1.06 nm), and superior thermal (the initial decomposition temperature T-5(%) under an N-2 atmosphere can reach 410 degrees C) and chemical stability (no apparent degradation in common organic solvents or strong acid/base solutions after 7 days). At 273 K and 1.0 bar, these MPOF-Ads networks present good uptake capacities for small gas molecules (13.9 wt % CO, and 1.66 wt % CH4) for which the presence of high surface area, predominant microporosity, and narrow pore size distribution are beneficial. In addition, the as-prepared MPOF-Ads networks possess moderate isosteric heats for CO2 (Q(st) = 19.5-30.3 kJ mol(-1)) and show desired CO2/N-2 and CO2/CH4 selectivity (36.338.4 and 4.1-4.3 based on Henry's law and 17.88-24.92 and 4.24-5.70 based on ideal adsorbed solution theory, respectively). With the demonstrated properties, the synthesized MPOF-Ads networks display potential for small gas storage and separation that can be used in harsh environments because of their superior physical and chemical stability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据