دورية أكاديمية
أعرض في EDS

NiFeOx as a Bifunctional Electrocatalyst for Oxygen Reduction (OR) and Evolution (OE) Reaction in Alkaline Media

التفاصيل البيبلوغرافية
العنوان: NiFeOx as a Bifunctional Electrocatalyst for Oxygen Reduction (OR) and Evolution (OE) Reaction in Alkaline Media
المؤلفون: Alagar Raj Paulraj, Yohannes Kiros, Mats Göthelid, Malin B. Johansson
المصدر: Catalysts, Vol 8, Iss 8, p 328 (2018)
بيانات النشر: MDPI AG, 2018.
سنة النشر: 2018
المجموعة: LCC:Chemical technology
LCC:Chemistry
مصطلحات موضوعية: Bi-functional catalyst, hydrothermal synthesis, OER/ORR, nickel ferrite, Ni FeLDH, Chemical technology, TP1-1185, Chemistry, QD1-999
الوصف: This article reports the two-step synthesis of NiFeOx nanomaterials and their characterization and bifunctional electrocatalytic activity measurements in alkaline electrolyte for metal-air batteries. The samples were mostly in layered double hydroxide at the initial temperature, but upon heat treatment, they were converted to NiFe2O4 phases. The electrochemical behaviour of the different samples was studied by linear sweep voltammetry and cyclic voltammetry on the glassy carbon electrode. The OER catalyst activity was observed for low mass loadings (0.125 mg cm−2), whereas high catalyst loading exhibited the best performance on the ORR side. The sample heat-treated at 250 °C delivered the highest bi-functional oxygen evolution and reduction reaction activity (OER/ORR) thanks to its thin-holey nanosheet-like structure with higher nickel oxidation state at 250 °C. This work further helps to develop low-cost electrocatalyst development for metal-air batteries.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2073-4344
Relation: http://www.mdpi.com/2073-4344/8/8/328; https://doaj.org/toc/2073-4344
DOI: 10.3390/catal8080328
URL الوصول: https://doaj.org/article/3a1f4abf4e9c48d498d5cda3f4af6a25
رقم الأكسشن: edsdoj.3a1f4abf4e9c48d498d5cda3f4af6a25
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20734344
DOI:10.3390/catal8080328