Journal
NANOMATERIALS
Volume 10, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/nano10091882
Keywords
amorphous carbon; black materials; organic-inorganic hybrid materials; π – π interaction; adsorbent; geometrical selectivity
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology, Japan
- CAS President's International Fellowship Initiative
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This paper presents a new type of black organic material-porous silica composite providing an extremely highly selective adsorption surface. This black composite was prepared by lamination on nano-sized pores with a carbon-like, pi-extended structure, which can be converted via the on-site polymerization of 1,5-dihydroxynaphthalene with a triazinane derivative and a thermally induced condensation reaction with denitrification. This bottom-up fabrication method on porous materials had the great advantage of maintaining the pore characteristics of a raw porous material, but also the resultant black surface exhibited an extremely high molecular-shape selectivity; for example, that for trans- and cis-stilbenes reached 14.0 with the black layer-laminated porous silica, whereas it was below 1.2 with simple hydrophobized silica.
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