Back to Search
Start Over
CO2 electrochemical catalytic reduction with a highly active cobalt phthalocyanine
- Source :
- Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019), Nature Communications
- Publication Year :
- 2019
- Publisher :
- Nature Publishing Group, 2019.
-
Abstract
- Molecular catalysts that combine high product selectivity and high current density for CO2 electrochemical reduction to CO or other chemical feedstocks are urgently needed. While earth-abundant metal-based molecular electrocatalysts with high selectivity for CO2 to CO conversion are known, they are characterized by current densities that are significantly lower than those obtained with solid-state metal materials. Here, we report that a cobalt phthalocyanine bearing a trimethyl ammonium group appended to the phthalocyanine macrocycle is capable of reducing CO2 to CO in water with high activity over a broad pH range from 4 to 14. In a flow cell configuration operating in basic conditions, CO production occurs with excellent selectivity (ca. 95%), and good stability with a maximum partial current density of 165 mA cm−2 (at −0.92 V vs. RHE), matching the most active noble metal-based nanocatalysts. These results represent state-of-the-art performance for electrolytic carbon dioxide reduction by a molecular catalyst.<br />Molecular electrocatalysts reducing CO2 to CO with high selectivity and high rate are urgently needed. A cobalt phthalocyanine complex is capable of reducing CO2 to CO in water with a maximum partial current density up to 165 mA cm−2, matching the most active noble metal-based nanocatalysts.
- Subjects :
- 0301 basic medicine
Materials science
Catalyst synthesis
Science
Inorganic chemistry
General Physics and Astronomy
Carbon nanotubes and fullerenes
02 engineering and technology
engineering.material
Electrochemistry
General Biochemistry, Genetics and Molecular Biology
Article
Catalysis
03 medical and health sciences
chemistry.chemical_compound
lcsh:Science
Electrochemical reduction of carbon dioxide
Multidisciplinary
Selective catalytic reduction
General Chemistry
021001 nanoscience & nanotechnology
Nanomaterial-based catalyst
030104 developmental biology
chemistry
engineering
Phthalocyanine
Noble metal
lcsh:Q
0210 nano-technology
Selectivity
Electrocatalysis
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 10
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....115c516b205c736db1e1d8c9a602d0b4