DataVXACS Energy LettersPaper
journal article·2017-03-10

Selective CO Production in Photoelectrochemical Reduction of CO2 with a Cobalt Chlorin Complex Adsorbed on Multiwalled Carbon Nanotubes in Water

Shoko Aoi, Kentaro Mase, Kei Ohkubo, Tomoyoshi Suenobu, Shunichi Fukuzumi

ACS Energy Letters· Volume 2· Issue 3
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Source abstract

Abstract

Photoelectrochemical reduction of CO 2 occurred using cobalt(II) chlorin (Co II (Ch)) as a cathode active material adsorbed on multiwalled carbon nanotubes as a current collector in combination with a surface-modified BiVO 4 photoanode with iron(III) oxide(hydroxide), FeO(OH), to produce CO with 83% Faradaic efficiency at an applied bias voltage of −1.3 V at the Co II (Ch)-modified cathode vs the FeO(OH)/BiVO 4 /FTO photoanode under visible light irradiation in a CO 2 -saturated aqueous solution (pH 4.6). The difference in the oxidation potential of the FeO(OH)/BiVO 4 /FTO electrode under dark and that under light illumination was ∼1.5 V, which was smaller than the band gap of BiVO 4 (band gap energy ≈ 2.4 eV), indicating that the FeO(OH)/BiVO 4 /FTO photoanode lowered the total bias that enabled simultaneous water oxidation and CO 2 reduction.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterials

OpenAlex topics: Advanced Photocatalysis Techniques · CO2 Reduction Techniques and Catalysts · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Material and Life Science, Graduate School of Engineering, Osaka University, SENTAN, Japan Science and Technology Agency (JST), Suita, Osaka 565-0871, Japan

Division of Innovative Research for Drug Development, Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan

Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea

Faculty of Science and Technology, Meijo University, SENTAN, Japan Science and Technology Agency (JST), Nagoya, Aichi 468-8502, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Japan Society for the Promotion of Science · Japan Science and Technology Agency

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