Gas storage in porous aromatic frameworks (PAFs)

被引：438

作者：

Ben, Teng ^{[1
]}

Pei, Cuiying ^{[2
]}

Zhang, Daliang ^{[2
]}

Xu, Jun ^{[3
]}

Deng, Feng ^{[3
]}

Jing, Xiaofei ^{[2
]}

Qiu, Shilun ^{[2
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

[2] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130023, Peoples R China

[3] Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2011年 / 4卷 / 10期

关键词：

INTRINSIC MICROPOROSITY PIMS; POLYMERS;

D O I：

10.1039/c1ee01222c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of porous aromatic frameworks (PAFs) were synthesized via a Yamamoto-type Ullmann reaction containing quadricovalent Si (PAF-3) and Ge (PAF-4). These PAFs are thermally stable up to 465 degrees C for PAF-3 and 443 degrees C for PAF-4, corresponding to a 5% weight loss according to the TG pattern. As PAF-1, they exhibit high surface areas (up to 2932 m(2) g(-1)) and excellent adsorption ability to hydrogen, methane and carbon dioxide. Low pressure gas uptake experiments on PAFs show PAF-3 has the highest heat of adsorption (Qst) of hydrogen (6.6 kJ mol (1)) and carbon dioxide (19.2 kJ mol (1)), while PAF-4 has the highest Qst for methane adsorption (23.2 kJ mol(-1)) among PAFs. Gas molecule recognition at 273 K was performed and results show only greenhouse gases such as carbon dioxide and methane could be adsorbed onto PAFs.

引用

页码：3991 / 3999

页数：9

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