Silver nanoparticles embedded over porous metal organic frameworks for carbon dioxide fixation via carboxylation of terminal alkynes at ambient pressure.
Ag nanoparticles (NPs) has been supported over a porous Co(II)-salicylate metal-organic framework to yield a new nanocatalyst AgNPs/Co-MOF and it has been thoroughly characterized by powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), energy dispersive X-ray spectrometry (EDX), high-resolution transmission electron microscopy (HR-TEM), UV-vis diffuse reflection spectroscopy (DRS) and N2 adsorption/desorption analysis. The AgNPs/Co-MOF material showed high catalytic activity in the carboxylation of terminal alkynes via CO2 fixation reaction to yield alkynyl carboxylic acids under very mild conditions. Due to the presence of highly reactive AgNPs bound at the porous MOF framework the reaction proceeded smoothly at 1atm CO2 pressure. Moreover, the catalyst is very convenient to handle and it can be reused for several reaction cycles without appreciable loss of catalytic activity in this CO2 fixation reaction, which suggested a promising future of AgNPs/Co-MOF nanocatalyst.
Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India.
Rostam Ali
RA
Molla
Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India.
Kajari
K
Ghosh
Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
Biplab
B
Banerjee
Department of Chemistry, IIT Roorkee, Roorkee 247667, Uttarakhand, India.
Md Asif
MA
Iqubal
Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
Sudipta K
SK
Kundu
Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India. Electronic address: manir65@rediffmail.com.
Sk Manirul
SM
Islam
Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India. Electronic address: msab@iacs.res.in.
Asim
A
Bhaumik
Ag nanoparticles; CO(2) fixation; Carboxylation of terminal alkynes; Expansion of carbon chain; Metal organic frameworks