دورية أكاديمية
The effect of nickel salt source and anion of electrolyte on electro-driven water oxidation activity using nickel hydroxide thin film
| العنوان: | The effect of nickel salt source and anion of electrolyte on electro-driven water oxidation activity using nickel hydroxide thin film |
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| المؤلفون: | Mehran Nozari-asbmarz, Mandana Amiri, Abolfazl Bezaatpour, Simin Arshi |
| المصدر: | شیمی کاربردی روز, Vol 16, Iss 58, Pp 137-148 (2021) |
| بيانات النشر: | Semnan University, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Chemistry |
| مصطلحات موضوعية: | water electro-oxidation, nickel hydroxide film, oxygen evolution, Chemistry, QD1-999 |
| الوصف: | In this approach, we demonstrate a very simple, easy and fast electrodeposition method to form nickel hydroxide (Ni(OH)2) thin film which is able to catalyze the water electro-oxidation reaction. Cyclic voltammetry and bulk electrolysis with Ni(OH)2 film in aqueous solution (pH 10.0) exhibited good catalytic current. The nickel oxide film was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and voltammetric methods. The results shows that Ni(OH)2 film is a robust heterogeneous water oxidation catalyst which has been used in long time without missing efficiency. The effect of several parameters in electro-synthesize of nickel hydroxide such as the kind of nickel salts, supporting electrolyte, pH and electrodeposition time of nickel hydroxide were investigated on water oxidation efficiency. The film exhibits an overpotentials of 60 mV and 540 mV at the onset of catalytic current in borate supporting electrolyte at around 1 mA cm-2 and 10 mA cm-2 in pH 10.0, respectively. The catalytic performance of the material is demonstrated by long-term electrolysis at 1.1 V versus saturated calomel electrode (SCE) with a stable current density ~ 4.5 mA for pH 10.0 (for at least 5 h), and a Faradaic efficiency of almost 97% is obtained. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Persian |
| تدمد: | 2981-2437 |
| Relation: | https://chemistry.semnan.ac.ir/article_4991_224b8ef667499bb6f9ad39a6d3f00410.pdf; https://doaj.org/toc/2981-2437 |
| DOI: | 10.22075/chem.2020.19560.1786 |
| URL الوصول: | https://doaj.org/article/7418fb3831bf44a8bbb0f31d567f5809 |
| رقم الأكسشن: | edsdoj.7418fb3831bf44a8bbb0f31d567f5809 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 29812437 |
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| DOI: | 10.22075/chem.2020.19560.1786 |