دورية أكاديمية
Copper Vanadate Nanobelts as Anodes for Photoelectrochemical Water Splitting: Influence of CoO xOverlayers on Functional Performances
| العنوان: | Copper Vanadate Nanobelts as Anodes for Photoelectrochemical Water Splitting: Influence of CoO xOverlayers on Functional Performances |
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| المؤلفون: | Girardi L., Rizzi G. A., Bigiani L., Barreca D., Maccato C., Marega C., Granozzi G. |
| المساهمون: | Girardi, L., Rizzi, G. A., Bigiani, L., Barreca, D., Maccato, C., Marega, C., Granozzi, G. |
| بيانات النشر: | American Chemical Society |
| سنة النشر: | 2020 |
| المجموعة: | Padua Research Archive (IRIS - Università degli Studi di Padova) |
| مصطلحات موضوعية: | cobalt oxide, copper vanadate, hydrothermal synthesi, IMPS, LSV, nanobelt, photoelectrochemical water splitting |
| الوصف: | The design and development of environmentally friendly and robust anodes for photoelectrochemical (PEC) water splitting plays a critical role for the efficient conversion of radiant energy into hydrogen fuel. In this regard, quasi-1D copper vanadates (CuV2O6) were grown on conductive substrates by a hydrothermal procedure and processed for use as anodes in PEC cells, with particular attention on the role exerted by cobalt oxide (CoOx) overlayers deposited by radio frequency (RF) sputtering. The target materials were characterized in detail by a multitechnique approach with the aim at elucidating the interplay between their structure, composition, morphology, and the resulting activity as photoanodes. Functional tests were performed by standard electrochemical techniques like linear sweep voltammetry, impedance spectroscopy, and by the less conventional intensity modulated photocurrent spectroscopy, yielding an important insight into the material PEC properties. The obtained results highlight that, despite the fact that the supposedly favorable band alignment between CuV2O6 and Co3O4 did not yield a net current density increase, cobalt oxide-functionalized anodes afforded a remarkable durability enhancement, an important prerequisite for their eventual real-world applications. The concurrent phenomena accounting for the observed behavior are presented and discussed in relation to material physico-chemical properties. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/32558537; info:eu-repo/semantics/altIdentifier/wos/WOS:000551488400037; volume:12; issue:28; firstpage:31448; lastpage:31458; numberofpages:11; journal:ACS APPLIED MATERIALS & INTERFACES; http://hdl.handle.net/11577/3350883Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85088155732 |
| DOI: | 10.1021/acsami.0c06915 |
| الإتاحة: | https://doi.org/10.1021/acsami.0c06915Test http://hdl.handle.net/11577/3350883Test |
| رقم الانضمام: | edsbas.12A4CE6B |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsami.0c06915 |
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