Polyaniline-Manganese Ferrite Supported Platinum-Ruthenium Nanohybrid Electrocatalyst: Synergizing Tailoring Toward Boosted Ethanol Oxidation Reaction
TOPICS IN CATALYSIS, cilt.65, sa.5-6, ss.716-725, 2022 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 65 Sayı: 5-6
- Basım Tarihi: 2022
- Doi Numarası: 10.1007/s11244-021-01537-7
- Dergi Adı: TOPICS IN CATALYSIS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Compendex
- Sayfa Sayıları: ss.716-725
- Anahtar Kelimeler: Ethanol electrocatalytic oxidation, Platinum, Ruthenium, Polyaniline, Manganese ferrite, CARBON NANOTUBES, HIGH-PERFORMANCE, ASSISTED SYNTHESIS, GRAPHENE OXIDE, NANOPARTICLES, ELECTRODE, CATALYST, METHANOL, NICKEL, ELECTROOXIDATION
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Akdeniz Üniversitesi Adresli: Evet
Özet
Tailoring effective electrocatalysts for the ethanol oxidation process with low-price, high electrocatalytic activity, and long lifetime is crucial for large-scale application of direct ethanol fuel cells. Herein, it was aimed to provide a facile method for designing Polyaniline-Manganese ferrite (PANI-MnFe2O4) supported nanocatalysts modified with Pt/Ru to be utilized for ethanol electrooxidation. The successful synthesis of the PANI-MnFe2O4/Pt/Ru nanocomposite was confirmed by the physicochemical analysis techniques including Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and X-ray diffraction. The electrooxidation of ethanol at room temperature was investigated using a number of electrochemical characterizations such as cyclic voltammetry, linear sweep voltammetry, and chronoamperometry techniques. In comparison to other electrodes, the PANI-MnFe2O4/Pt-Ru electrode demonstrated superior efficiency in terms of boosting forward current (I-f, 100 mAcm(-2)) and increasing the electrochemically active surface area (ECSA, 30.3) that was required for ethanol molecules during the oxidation process. Furthermore, results demonstrated that introducing Ru and Pt to the PANI-MnFe2O4 support enhanced its efficiency towards the ethanol oxidation reaction by boosting both the stability (94%) and the carbon monoxide tolerance, which are both critical for alkaline direct ethanol fuel cell practical applications. This study paves the way for a novel approach for engineering high-performance, low-cost electrocatalysts that may be utilized as an alternative to commercial electrocatalysts in fuel cell technology.