Hydrogen Evolution Using Palladium Sulfide (PdS) Nanocorals as Photoanodes in Aqueous Solution
Palladium sulfide (PdS) nanostructures are proposed to be used as photoanodes in photoelectrochemical cells (PECs) for hydrogen evolution due to their adequate transport and optical properties shown in previous works. Here, a complete morphological and electrochemical characterization of PdS films h...
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| Veröffentlicht in: | ACS applied materials & interfaces 2014-11, Vol.6 (22), p.20544-20549 |
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| creator | Barawi, M Ferrer, I. J Ares, J. R Sánchez, C |
| description | Palladium sulfide (PdS) nanostructures are proposed to be used as photoanodes in photoelectrochemical cells (PECs) for hydrogen evolution due to their adequate transport and optical properties shown in previous works. Here, a complete morphological and electrochemical characterization of PdS films has been performed by different techniques. PdS flatband potential (Vfb = −0.65 ± 0.05 V vs NHE) was determined by electrochemical impedance spectroscopy measurements in aqueous Na2SO3 electrolyte, providing a description of the energy levels scheme at the electrolyte–semiconductor interface. This energy levels scheme confirms PdS as a compound able to photogenerate hydrogen in a PEC. At last, photogenerated hydrogen rates are measured continuously by mass spectrometry as a function of the external bias potential under illumination, reaching values up to 4.4 μmolH2/h at 0.3 V vs Ag/AgCl. |
| doi_str_mv | 10.1021/am5061504 |
| format | Article |
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This energy levels scheme confirms PdS as a compound able to photogenerate hydrogen in a PEC. At last, photogenerated hydrogen rates are measured continuously by mass spectrometry as a function of the external bias potential under illumination, reaching values up to 4.4 μmolH2/h at 0.3 V vs Ag/AgCl.</description><issn>1944-8244</issn><issn>1944-8252</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpt0EFLwzAUB_AgipvTg19AchHcoZqkSZcex5hOGDqYu1rSvHR2tM1MGmHf3o7NnTzlEX78ee-P0C0lj5Qw-qRqQRIqCD9DfZpyHkkm2Plp5ryHrrzfEJLEjIhL1GMi5iThtI8-Zztwdm0aPP2xVWhL2-CVL5s1XqiqUlCGGi9DVZRg8MMClkP8phqrrVOVx8rjxZdtbfcDxuOywePvYGzweHnMukYXRSfNzfEdoNXz9GMyi-bvL6-T8TxSMRVtpLmgsSx4nsQJzynESoKREoAyCSqnOhW5ZJpQBiOhVApS6z0cMQZpd2s8QMNDrnbWe2eKbOvKWrldRkm27yg7ddTZu4Pdhrw2cJJ_pXTg_gCU9tnGBtd0q_8T9At-Y20V</recordid><startdate>20141126</startdate><enddate>20141126</enddate><creator>Barawi, M</creator><creator>Ferrer, I. 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| title | Hydrogen Evolution Using Palladium Sulfide (PdS) Nanocorals as Photoanodes in Aqueous Solution |
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