Effective catalytic hydrogenation of carbon dioxide with an imine N^C^N PdII pincer complex and N^C^N (Pd0) nanoparticles

Nyasha Makuve

CO2 hydrogenation, pincer complex, nanoparticles, formate, heterogeneous and homogeneous catalysis

Abstract A new N^C^N palladium pincer complex (C10) containing ligand (L4), was synthesised from [PdCl2(CH3CN)2] and fully characterised by spectroscopic and analytical techniques. Its catalytic activity in hydrogenation of CO2 to formate studied. Its nanoparticle nature (N^C^N-Pd/NPs) was established using UV-vis spectroscopy and high-resolution microscopic techniques such as HR-TEM. Catalytic hydrogenation of CO2 performed in the presence of THF/H2O solvent mixture and KOH resulted in a TON of 533 and 1.6 mmol formate yield. Though C10 could hydrogenate CO2 to formate it was forming nanoparticles during the hydrogenation process. Since nanoparticles were visibly formed during the reaction using C10, this complex was purposely reduced to form N^C^N pincer ligand supported Pd nanoparticles (N^C^N-Pd/NPs), which exhibited excellent CO2 hydrogenation performance in comparison to C10. Hydrogenation of CO2 to formate with N^C^N-Pd/NPs produced the highest TON of 937 with 2.81 mmol formate. Additionally, N^C^N-Pd/NPs were robust and could be reused four times without reducing catalytic activity

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"Effective catalytic hydrogenation of carbon dioxide with an imine N^C^N PdII pincer complex and N^C^N (Pd0) nanoparticles", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.6, Issue 2, page no.219 - 233, February-2021, Available :https://ijsdr.org/papers/IJSDR2102032.pdf

Volume 6 Issue 2, February-2021

Pages : 219 - 233

Paper Reg. ID: IJSDR_192927

Published Paper Id: IJSDR2102032

Downloads: 000347445

Research Area: Chemistry

Country: Grodno, Grodno, Belarus

Published Paper PDF: https://ijsdr.org/papers/IJSDR2102032

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR2102032

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

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