Titanium trisulphide (TiS3) nanoribbons for easy hydrogen photogeneration under visible light
| Autor: | I. J. Ferrer, Mariam Barawi, Carlos Sánchez, J.R. Ares, Eduardo Flores |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment Analytical chemistry chemistry.chemical_element Nanotechnology General Chemistry Electrolyte Photoelectrochemical cell Mass spectrometry Dielectric spectroscopy chemistry General Materials Science Flat band Visible spectrum Titanium |
| Zdroj: | Journal of Materials Chemistry A. 3:7959-7965 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c5ta00192g |
| Popis: | First evidence of hydrogen evolution by using titanium trisulphide (TiS3) as a photoanode in a photoelectrochemical cell (PEC) is reported. Synthesized TiS3, composed of numerous nanoribbons, has been structurally, morphologically and photoelectrochemically characterized. Moreover, the value of its flat band potential has been estimated (Vfb = −0.68 ± 0.05 V vs. Ag/AgCl) by Electrochemical Impedance Spectroscopy (EIS) measurements. This value has been used to depict the band energy levels of the TiS3/electrolyte interface. Finally, flows of photogenerated hydrogen up to 1.80 ± 0.05 μmol H2 min−1 have been quantified by Mass Spectrometry (MS) at a (Ag/AgCl) bias potential of 0.3 V, yielding a photoconversion efficiency of about 7%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|