https://scholars.lib.ntu.edu.tw/handle/123456789/626235
Title: | Construction of Heterostructured Sn/TiO2/Si Photocathode for Efficient Photoelectrochemical CO2 Reduction | Authors: | Li C Zhou X Zhang Q Xue Y Kuang Z Zhao H CHUNG-YUAN MOU Chen H. |
Keywords: | CO2 reduction; formic acid; photocathode; photoelectrochemistry; Sn/TiO2/Si | Issue Date: | 2022 | Journal Volume: | 15 | Journal Issue: | 8 | Source: | ChemSusChem | Abstract: | Using renewable energy to convert CO2 into liquid products, as a sustainable way to produce fuels and chemicals, has attracted intense attention. Herein, a novel heterostructured photocathode composed of Si wafer, TiO2 layer, and Sn metal particles has been successfully fabricated by combining of a facile hydrothermal and electrodeposition method. The obtained Sn/TiO2/Si photocathode shows enhanced light absorption performance by the surface plasmon resonance effect of Sn metal. Especially, the Sn/TiO2/Si photocathode together with rich oxygen vacancy defects jointly promote photoelectrochemical CO2 reduction, harvesting a high faradaic efficiency of HCOOH and a desirable average current density (−4.72 mA cm−2) at −1.0 V vs. reversible hydrogen electrode. Significantly, the photocathode Sn/TiO2/Si also shows good stability due to the design of protecting layer TiO2. This study provides a facile strategy of constructing an efficient photocathode to improve the light absorption performance and the electron transfer efficiency, exhibiting great potential in the CO2 reduction. © 2022 Wiley-VCH GmbH. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126848237&doi=10.1002%2fcssc.202200188&partnerID=40&md5=eca4c970f0e111ca2f94c65afe504a0a https://scholars.lib.ntu.edu.tw/handle/123456789/626235 |
ISSN: | 18645631 | DOI: | 10.1002/cssc.202200188 | SDG/Keyword: | Carbon dioxide; Electrochemistry; Formic acid; Light absorption; Silicon wafers; Surface plasmon resonance; Tin; Absorption performance; CO 2 reduction; Liquid products; Photo-electrochemistry; Photocathode; Photoelectrochemicals; Renewable energies; Si wafer; Sn/TiO2/si; TiO 2 layer; Titanium dioxide |
Appears in Collections: | 化學系 |
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