Carbon Nanofibre Modified Platinum Nanomaterials: Synthesis, Characterization and Their Applications toward C1 to C3 Alcohols for Direct Alcohol Fuel Cells

IF 2.8 3区化学 Q2 CHEMISTRY, APPLIED

Topics in Catalysis Pub Date : 2024-01-10 DOI:10.1007/s11244-024-01905-z

Rozhin Darabi, Fatemeh Karimi, Ramazan Bayat, Muhammed Bekmezci, Somaye Cheraghi, Fatih Sen

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引用次数: 0

Abstract

Innovations in fuel cells bring important developments in obtaining energy. Especially with the anodic reactions of fuel cells and the catalysts used in the anodic part, it provides an increase in energy efficiency. With this study, modification of durable and high catalytic activity targeted carbon nanofibers (CNFs) with Platinum nanostructures (CNF@Pt) developed for alcohol oxidation was provided. Further, CNF@Pt was characterized by Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD). According to Debye Scherrer, the crystalline particle size was approximately 2.27 nm, and the CNF diameter was measured as 161.57 nm according to the TEM results. Besides, the anodic reactions of methanol, ethanol, and 2-Propanol for direct alcohol fuel cells (DAFC) were investigated. Cyclic Voltammetry (CV), Chronoamperimetry (CA), and recycling performance tests were demonstrated in ideal operating rates of the catalyst. One of the highest anodic peak currents were measured as 145.43, 101.56, and 34.54 mA.cm^− 2 for methanol, ethanol, and 2-propanol at a scanning speed of 50 mV/s, respectively. The CNF@Pt catalyst was also very stable and durable in stability tests. In this study, it has been seen that carbon-based fiber materials are an ideal catalyst to increase efficiency in fuel cells and to make sense of the results obtained in their use in different alcohol types.

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碳纳米纤维修饰的铂纳米材料：合成、表征及其在直接醇燃料电池中对 C1 至 C3 醇的应用

燃料电池的创新为获取能源带来了重要发展。特别是燃料电池的阳极反应和阳极部分使用的催化剂，提高了能源效率。本研究用铂纳米结构（CNF@Pt）改性了用于酒精氧化的耐用且具有高催化活性的靶向碳纳米纤维（CNF）。此外，透射电子显微镜（TEM）和 X 射线衍射（XRD）对 CNF@Pt 进行了表征。根据 Debye Scherrer 方法，结晶粒径约为 2.27 nm，而根据 TEM 结果测得的 CNF 直径为 161.57 nm。此外，还研究了甲醇、乙醇和 2-丙醇在直接醇燃料电池（DAFC）中的阳极反应。循环伏安法（CV）、计时电流法（CA）和回收性能测试都证明了催化剂的理想运行率。在扫描速度为 50 mV/s 时，甲醇、乙醇和 2-丙醇的阳极峰值电流分别为 145.43、101.56 和 34.54 mA.cm- 2。在稳定性测试中，CNF@Pt 催化剂也非常稳定耐用。这项研究表明，碳基纤维材料是一种理想的催化剂，可提高燃料电池的效率，并使其在不同类型酒精中的使用结果更有意义。

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来源期刊

Topics in Catalysis 化学-物理化学

CiteScore

5.70

自引率

5.60%

发文量

197

审稿时长

2 months

期刊介绍： Topics in Catalysis publishes topical collections in all fields of catalysis which are composed only of invited articles from leading authors. The journal documents today’s emerging and critical trends in all branches of catalysis. Each themed issue is organized by renowned Guest Editors in collaboration with the Editors-in-Chief. Proposals for new topics are welcome and should be submitted directly to the Editors-in-Chief. The publication of individual uninvited original research articles can be sent to our sister journal Catalysis Letters. This journal aims for rapid publication of high-impact original research articles in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.