Simultaneous Reduction of CO 2 and Splitting of H 2 O by a Single Immobilized Cobalt Phthalocyanine Electrocatalyst

Handle URI:
http://hdl.handle.net/10754/621690
Title:
Simultaneous Reduction of CO 2 and Splitting of H 2 O by a Single Immobilized Cobalt Phthalocyanine Electrocatalyst
Authors:
Morlanes, Natalia Sanchez ( 0000-0002-5356-9255 ) ; Takanabe, Kazuhiro ( 0000-0001-5374-9451 ) ; Rodionov, Valentin
Abstract:
Perfluorinated cobalt phthalocyanine (CoFPc) immobilized on carbon electrodes was found to electrocatalyze the reduction of CO2 selectively to CO in an aqueous solution. The conversion of CO2 became apparent at -0.5 V vs RHE, and the Faradaic efficiency for the CO production reached as high as 93% at -0.8 V vs RHE. Highly stable electrolysis of CO2/H2O into CO/O2 was achieved for 12 h by applying the same catalyst as the cathode for CO2 reduction and the anode for water oxidation. This result indicates the highly robust nature of the CoFPc at wide range of potentials from -0.9 V to +2.2 V vs RHE, demonstrating the potential bipolar electrolytic system for CO2/H2O electrolysis, using the single-site molecular CoFPc-based electrocatalyst, which is simple, inexpensive, robust, and efficient. © 2016 American Chemical Society.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
Citation:
Morlanés N, Takanabe K, Rodionov V (2016) Simultaneous Reduction of CO 2 and Splitting of H 2 O by a Single Immobilized Cobalt Phthalocyanine Electrocatalyst . ACS Catalysis 6: 3092–3095. Available: http://dx.doi.org/10.1021/acscatal.6b00543.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Catalysis
Issue Date:
12-Apr-2016
DOI:
10.1021/acscatal.6b00543
Type:
Article
ISSN:
2155-5435; 2155-5435
Sponsors:
This research was supported by funding from King Abdullah University of Science and Technology (KAUST). We are grateful to Dr. Tianyou Chen (KAUST) for help with characterization of carbon cloth electrodes.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorMorlanes, Natalia Sanchezen
dc.contributor.authorTakanabe, Kazuhiroen
dc.contributor.authorRodionov, Valentinen
dc.date.accessioned2016-11-03T13:22:50Z-
dc.date.available2016-11-03T13:22:50Z-
dc.date.issued2016-04-12en
dc.identifier.citationMorlanés N, Takanabe K, Rodionov V (2016) Simultaneous Reduction of CO 2 and Splitting of H 2 O by a Single Immobilized Cobalt Phthalocyanine Electrocatalyst . ACS Catalysis 6: 3092–3095. Available: http://dx.doi.org/10.1021/acscatal.6b00543.en
dc.identifier.issn2155-5435en
dc.identifier.issn2155-5435en
dc.identifier.doi10.1021/acscatal.6b00543en
dc.identifier.urihttp://hdl.handle.net/10754/621690-
dc.description.abstractPerfluorinated cobalt phthalocyanine (CoFPc) immobilized on carbon electrodes was found to electrocatalyze the reduction of CO2 selectively to CO in an aqueous solution. The conversion of CO2 became apparent at -0.5 V vs RHE, and the Faradaic efficiency for the CO production reached as high as 93% at -0.8 V vs RHE. Highly stable electrolysis of CO2/H2O into CO/O2 was achieved for 12 h by applying the same catalyst as the cathode for CO2 reduction and the anode for water oxidation. This result indicates the highly robust nature of the CoFPc at wide range of potentials from -0.9 V to +2.2 V vs RHE, demonstrating the potential bipolar electrolytic system for CO2/H2O electrolysis, using the single-site molecular CoFPc-based electrocatalyst, which is simple, inexpensive, robust, and efficient. © 2016 American Chemical Society.en
dc.description.sponsorshipThis research was supported by funding from King Abdullah University of Science and Technology (KAUST). We are grateful to Dr. Tianyou Chen (KAUST) for help with characterization of carbon cloth electrodes.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectCO reduction 2en
dc.titleSimultaneous Reduction of CO 2 and Splitting of H 2 O by a Single Immobilized Cobalt Phthalocyanine Electrocatalysten
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Catalysisen
kaust.authorMorlanes, Natalia Sanchezen
kaust.authorTakanabe, Kazuhiroen
kaust.authorRodionov, Valentinen
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