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A bis(thiosemicarbazonato)-copper complex, a new catalyst for electro- and photo-reduction of CO2 to methanol.
- Source :
-
New Journal of Chemistry . 2/21/2020, Vol. 44 Issue 7, p2721-2726. 6p. - Publication Year :
- 2020
-
Abstract
- Diacetyl-2-(4-N-methyl-3-thiosemicarbazone)-3-(4-N-amino-3-thiosemicarbazone) (H2ATSM) reacts with CuCl2 to form a copper complex, Cu-ATSM, a new catalyst for electrochemically and photochemically driven CO2 reduction to methanol. As an electrocatalyst, this copper complex can catalyse methanol generation from a CO2-saturated buffer with a turnover frequency (TOF) of 2844 moles of methanol per mole of catalyst per hour and a faradaic efficiency of 74% during a 6 h electrolysis. Under blue light (λ = 469 nm), combining with Au–CdS nanoclusters (Au–CdS NCs) as a photosensitizer, and ascorbic acid (H2A) as a sacrificial electron donor, this copper complex can catalyse methanol generation with a turnover number (TON) of 4067 moles of methanol per mole of catalyst (mol of cat−1) and a methanol selectivity of 74%. The highest apparent quantum yield (AQY) is 9.0%. [ABSTRACT FROM AUTHOR]
- Subjects :
- *METHANOL
*TURNOVER frequency (Catalysis)
*ELECTRON donors
*VITAMIN C
*BLUE light
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 44
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 141771008
- Full Text :
- https://doi.org/10.1039/c9nj05672f