Photoelectrochemical Performance Of Thermally Sulfurized Cdxzn1-Xs Photoanode: Enhancement With Reduced Graphene Oxide Support
| Autor: | RanaMuhammad Zunain Ayaz, Atıf Koca, Cevat Sarioglu, Duygu Akyüz, Özlem Uğuz, Fatma Karaca, Ali Rıza Özkaya, İrem Tanşık |
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| Rok vydání: | 2020 |
| Předmět: |
Photocurrent
Materials science 060102 archaeology Renewable Energy Sustainability and the Environment Graphene 020209 energy Oxide chemistry.chemical_element Hydrogen production rate 06 humanities and the arts 02 engineering and technology Electron Sulfur law.invention chemistry.chemical_compound Chemical engineering chemistry law Electrode 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Visible spectrum |
| Popis: | In this study, photoelectrochemical performance of reduced graphene oxide (RGO)-CdxZn1-xS compos-ites, which were synthesized through a novel two-steps thermal sulfurization process by using elemental sulfur, was reported. This is the first time that the two-step thermal sulfurization process with elemental sulfur for the preparation of photoanode based on RGO-CdxZn1-xS. The electrodes exhibited high photostability and photocurrent response in the presence of visible light. The presence of RGO in CdxZn1-xS as electron collector and transporter increased the photocurrents approximately 40%. Among the RGOCdxZn1-xS composites, RGO-CdS photoanode yielded an extremely high photocurrent density of 6.5 mAcm(-2) with the rate of hydrogen production rate of 551.1mmolh(-1)cm(-2). This value of photocurrent density is almost 89% of its theoretical value. This is the maximum attained photocurrent density with superior stability in comparison with related literature. (c) 2020 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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