期刊
Catalysis Science & Technology
卷 6, 期 23, 页码 8344-8354出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cy01631f
关键词
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资金
- Romanian National Authority for Scientific Research, CNDI-UEFISCDI [PCCA-II-166/2012, PCCA-II-56/2014, PN-II-ID-PCE-2011-3-0060]
- Competitive Multidisciplinary Doctoral Research at European Level (CdocMD) - European Social Fund within the Sectorial Operational Program Human Resources Development [POSDRU/187/1.5/S/155559]
- Romanian UEFISCDI Agency [PN2-128/2011]
A bimodal (micro/mesoporous) COF was synthesized by coupling tetrakis-1,3,5,7-(4'-iodophenyl) adamantane with 4,4'-diethynylbiphenyl following a Sonogashira protocol. The COF preparation strategy led, however, to the incomplete recovery of the palladium catalyst and ICP-OES analysis indicated that around 0.1 wt% palladium remained inside the pores. Noteworthily, the remnant palladium catalyst is still accessible and can be valorised in additional catalytic reactions like the hydrogenation of nitrostyrene. Further deposition of 0.5 wt% active metals (like palladium or gold) enhanced the catalytic activity and tuned the catalyst selectivity with respect to analogous metal catalysts prepared using active carbon as a support. The resulting COF-supported metal NPs are stable and recyclable catalysts. Under normal conditions, this COF is also able to adsorb large amounts of weak electrophilic gases like carbon dioxide.
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