| Full text | |
| Author(s): |
Sanchez de la Cruz, Pamela Teresa
[1]
;
Irikura, Kallyni
[2]
;
Lachgar, Abdessadek
[3]
;
Cardoso, Juliano Carvalho
[4]
;
Alarcon Cavero, Hugo
[1]
;
Boldrin Zanoni, Maria Valnice
[2]
Total Authors: 6
|
| Affiliation: | [1] Natl Univ Engn, Fac Sci, Av Tupac Amaru 210, Lima 15333 - Peru
[2] Sao Paulo State Univ, Inst Chem, Natl Inst Alternat Technol Detect Toxicol Evaluat, UNESP, Araraquara, SP - Brazil
[3] Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 - USA
[4] Univ Fed Mato Grosso do Sul, Inst Chem, Av Senador Filinto Muller 1555, CP 549, BR-79074460 Campo Grande, MS - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | ELECTROCATALYSIS; v. 11, n. 5 JUN 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
Copper(I) oxide (Cu2O) was electrochemically deposited on fluorine-doped tin oxide (FTO) glass electrode and covered with a thin layer of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The electrode was studied in the photoelectrocatalytic reduction of CO2. Methanol was obtained as the major product with a concentration of 460 mu mol L(-1)with a photoconversion yield of 12% after 60 min of reaction under the conditions of UV-Vis (125 W Hg high pressure lamp) and application of 0.0 V vs Ag/AgCl in 3.0 mol L-1 KCl in buffer sodium carbonate/sodium bicarbonate 0.1 mol L(-1)saturated with CO(2)gas. The PEDOT:PSS has led to a significant improvement in CO(2)conversion due to rapid transfer of photogenerated holes. Consequently, the thin layer of PEDOT:PSS also reduces the photooxidation of Cu2O to CuO. The Cu2O/PEDOT:PSS photocatalytic system was found to have excellent photostability. Similar yield of alcohol was observed after reusing the catalyst six times. (AU) | |
| FAPESP's process: | 17/12790-7 - Preparation and characterization of TiO2 nanostructured electrodes modified with metal organic frameworks (MOFs) for application in the preconcentration and reduction of CO2 |
| Grantee: | Kallyni Irikura |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/18109-4 - Contribution of Nanostructured Materials in Electroanalysis of pharmaceuticals and dyes, in the oxidation and reduction photoeletrocatalytic process of Inorganic and Organic Pollutants and Water Disinfection. |
| Grantee: | Maria Valnice Boldrin |
| Support Opportunities: | Regular Research Grants |