Efficient electrooxidation of methanol by Co-Pt bimetallic nanoparticles loaded on carbon nanotubes in alkaline environment

IF 4 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Shuiyan Ning, Guiqi Gao, Ruiwen Yan
{"title":"Efficient electrooxidation of methanol by Co-Pt bimetallic nanoparticles loaded on carbon nanotubes in alkaline environment","authors":"Shuiyan Ning,&nbsp;Guiqi Gao,&nbsp;Ruiwen Yan","doi":"10.1016/j.synthmet.2024.117736","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, composites of Co-Pt nanoparticles/carbon nanotubes (Co-Pt NPs/CNTs) were prepared by loading binary nanoparticles Co-Pt nanoparticles onto carbon nanotubes. These composites were utilized as highly efficient catalysts for the methanol electrocatalytic oxidation reaction (MOR). The morphology of the materials was analyzed using transmission electron microscopy (TEM), Spherical Aberration Corrected Scanning (AC-STEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results revealed that the 5.54 nm diameter Co-Pt nanoparticles were evenly distributed on the surface of carbon nanotubes. Chronoamperometry (CA), linear scanning voltammetry (LSV), and cyclic voltammetry (CV) techniques were employed to assess the activity and stability of Co-Pt NPs/CNTs composites. Various Co-Pt NPs/CNTs composites were prepared by adjusting the ratio of Co-Pt. Through analysis of MOR performance, it was found that the Co<sub>3</sub>Pt<sub>1</sub> NPs/CNTs composites exhibited superior catalytic activity with a mass activity of 4411 mA·mg<sup>−1</sup><sub>Pt</sub>, which was 2.45 times higher than that of commercial Pt/C catalysts. This study introduced a novel approach for the preparation of high-performance Co-Pt bimetallic nanoparticles catalysts.</p></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"309 ","pages":"Article 117736"},"PeriodicalIF":4.0000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synthetic Metals","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S037967792400198X","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

In this work, composites of Co-Pt nanoparticles/carbon nanotubes (Co-Pt NPs/CNTs) were prepared by loading binary nanoparticles Co-Pt nanoparticles onto carbon nanotubes. These composites were utilized as highly efficient catalysts for the methanol electrocatalytic oxidation reaction (MOR). The morphology of the materials was analyzed using transmission electron microscopy (TEM), Spherical Aberration Corrected Scanning (AC-STEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results revealed that the 5.54 nm diameter Co-Pt nanoparticles were evenly distributed on the surface of carbon nanotubes. Chronoamperometry (CA), linear scanning voltammetry (LSV), and cyclic voltammetry (CV) techniques were employed to assess the activity and stability of Co-Pt NPs/CNTs composites. Various Co-Pt NPs/CNTs composites were prepared by adjusting the ratio of Co-Pt. Through analysis of MOR performance, it was found that the Co3Pt1 NPs/CNTs composites exhibited superior catalytic activity with a mass activity of 4411 mA·mg−1Pt, which was 2.45 times higher than that of commercial Pt/C catalysts. This study introduced a novel approach for the preparation of high-performance Co-Pt bimetallic nanoparticles catalysts.

碳纳米管上负载的 Co-Pt 双金属纳米粒子在碱性环境中对甲醇的高效电氧化作用
在这项研究中,通过在碳纳米管上负载二元纳米颗粒 Co-Pt 纳米颗粒,制备了 Co-Pt 纳米颗粒/碳纳米管(Co-Pt NPs/CNTs)复合材料。这些复合材料被用作甲醇电催化氧化反应(MOR)的高效催化剂。使用透射电子显微镜(TEM)、球面像差校正扫描(AC-STEM)、X 射线衍射(XRD)和 X 射线光电子能谱(XPS)分析了材料的形态。结果表明,直径为 5.54 nm 的 Co-Pt 纳米粒子均匀地分布在碳纳米管表面。为了评估 Co-Pt NPs/CNTs 复合材料的活性和稳定性,研究人员采用了时标法(CA)、线性扫描伏安法(LSV)和循环伏安法(CV)等技术。通过对 MOR 性能的分析发现,Co3Pt1 NPs/CNTs 复合材料具有优异的催化活性,其质量活性为 4411 mA-mg-1Pt,是商用 Pt/C 催化剂的 2.45 倍。该研究为制备高性能 Co-Pt 双金属纳米颗粒催化剂提供了一种新方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Synthetic Metals
Synthetic Metals 工程技术-材料科学:综合
CiteScore
8.30
自引率
4.50%
发文量
189
审稿时长
33 days
期刊介绍: This journal is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. These functional materials have the properties of metals, semiconductors or magnets and are distinguishable from elemental and alloy/binary metals, semiconductors and magnets.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信