Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 1, Pages 201-208Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am505697f
Keywords
porous organic framework; Scholl reaction; low-cost catalysts; commercial monomers; sole phenyl skeleton; gas adsorption
Funding
- National Basic Research Program of China (973 Program) [2012CB821700, 2014CB931800]
- Major International (Regional) Joint Research Project of the National Science Foundation of China [21120102034]
- National Science Foundation of China [21201074]
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Porous organic frameworks (POFs), with their excellent performance in catalysis, electricity, sensor, gas storage, and separation, have attracted a great deal of attention from researchers all over the world. Generally, the monomers of POF materials require a rigid three-dimensional molecule configuration together with special functional groups, as well as being triggered by noble metal catalysts. Here we report a low-cost and easy-construction strategy for synthesizing PAF materials. A series of flat multi-benzene compounds are selected as building units, and those phenyl rings could couple together to form polymeric skeletons. The BET surface areas of resulting PAFs are moderate, ranging from 777 to 972 m2 g(-1). However, they unexpectedly exhibit superior gas sorption capacities. At 1.0 bar and 77 K, the H-2 uptake of PAF-48 reaches 215 cm(3) g(-1). In addition, PAF-49 shows excellent performance in carbon dioxide and methane sorption, with values of 104 and 35 cm(3) g(-1), respectively. With those adsorption properties, these PAF materials could be considered as potential candidates for energetic gas adsorbents.
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