Platinum Group Metal (PGM) free multi metallic nanomaterial: a potential electrocatalyst for Ethanol Oxidation.

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Turkish Journal of Chemistry Pub Date : 2024-10-14 eCollection Date: 2025-01-01 DOI:10.55730/1300-0527.3709

Susmita Singh, Prodipta Pal, Soumik Roy, Shalini Basak, Prantica Saha, Anushna Dutta, Sinthia Saha, Mainak Bose

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引用次数: 0

Abstract

Comprehensive studies of the ethanol oxidation reaction (EOR) have shown high interest in fuel cell technologies. As anode catalysts, introducing platinum group metal (PGM) free catalyst is promising for higher catalytic activity towards the EOR, as these are cost-effective, pollution-tolerant, and suitable for sustainable energy conversion. In this investigation, multi walled carbon nanotube (MWCNT) supported PGM-free electrocatalysts are synthesized by the impregnation reduction method. The atomic structure, composition, and morphology of nanoalloy catalysts are discovered through X-ray diffraction (XRD), Raman spectroscopy and fourier-transform infrared (FTIR) spectroscopy techniques. Electrochemical behaviours have been analysed by cyclic voltammetry (CV), linear sweep voltammetry (LSV), Chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS), which reveal the oxidation kinetics of ethanol in an alkaline medium on the surface of the catalyst. The structure-activity relationship is a portrait of all the physical and electrochemical analyses that assists in exploring the active site of the surface, which facilitates electrooxidation activity. The C/Fe₅₀Co₅₀ catalyst exhibits higher catalytic efficiency and promotes CO removal through a bifunctional mechanism and electronic effect.

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无铂族金属多金属纳米材料：一种潜在的乙醇氧化电催化剂。

乙醇氧化反应（EOR）的全面研究显示出燃料电池技术的高度兴趣。作为阳极催化剂，引入不含铂族金属（PGM）的催化剂具有成本效益高、耐污染、适合可持续能源转换等优点，有望提高EOR的催化活性。采用浸渍还原法制备了负载多壁碳纳米管（MWCNT）的无pgm电催化剂。通过x射线衍射（XRD）、拉曼光谱和傅里叶变换红外（FTIR）光谱技术，研究了纳米合金催化剂的原子结构、组成和形貌。利用循环伏安法（CV）、线性扫描伏安法（LSV）、计时伏安法（CA）和电化学阻抗谱法（EIS）分析了乙醇在碱性介质中在催化剂表面的氧化动力学。结构-活性关系是所有物理和电化学分析的写照，有助于探索表面的活性位点，从而促进电氧化活性。C/Fe50Co50催化剂表现出更高的催化效率，通过双功能机制和电子效应促进CO的去除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Turkish Journal of Chemistry 化学-工程：化工

CiteScore

2.40

自引率

7.10%

发文量

审稿时长

3 months

期刊介绍： The Turkish Journal of Chemistry is a bimonthly multidisciplinary journal published by the Scientific and Technological Research Council of Turkey (TÜBİTAK). The journal is dedicated to dissemination of knowledge in all disciplines of chemistry (organic, inorganic, physical, polymeric, technical, theoretical and analytical chemistry) as well as research at the interface with other sciences especially in chemical engineering where molecular aspects are key to the findings. The journal accepts English-language original manuscripts and contribution is open to researchers of all nationalities. The journal publishes refereed original papers, reviews, letters to editor and issues devoted to special fields. All manuscripts are peer-reviewed and electronic processing ensures accurate reproduction of text and data, plus publication times as short as possible.