Efficient Direct‐Methanol Fuel Cell Based on Graphene Quantum Dots/Multi‐walled Carbon Nanotubes Composite,Electroanalysis

当前位置： X-MOL 学术 › Electroanalysis › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Efficient Direct‐Methanol Fuel Cell Based on Graphene Quantum Dots/Multi‐walled Carbon Nanotubes Composite
Electroanalysis ( IF 2.7 ) Pub Date : 2020-05-27 , DOI: 10.1002/elan.202060074
Büşra Gizem Güneştekin ₁ , Hilal Medetalibeyoglu ₂ , Necip Atar ₃ , Mehmet Lütfi Yola ₄

Affiliation

Direct‐methanol fuel cells are proton‐exchange fuel cell in which methanol is used as the fuel. The important advantage of these fuel cells is the simplicity of transport and storage of methanol. In this study, methanol fuel cell electrocatalysts including graphene quantum dots (GQDs), functionalized multi‐walled carbon nanotubes (f‐MWCNTs) and GQDs/f‐MWCNTs composite were synthesized. The structures of synthesized electrocatalysts were highlighted by scanning electron microscope (SEM), raman spectroscopy, UV–vis spectroscopy, fourier transform infrared spectroscopy (FTIR), electrochemical impedance spectroscopy (EIS) and x‐ray diffraction (XRD) method. After that, the effective surface areas (ESA) of GQDs, f‐MWCNTs and GQDs/f‐MWCNTs were calculated. Finally, GQDs/f‐MWCNTs composite modified glassy carbon electrode (GQDs/f‐MWCNTs/GCE) showed highest current signals for methanol oxidation than those of comparable GQDs/GCE and f‐MWCNTs/GCE.

中文翻译：

基于石墨烯量子点/多壁碳纳米管复合材料的高效直接甲醇燃料电池

直接甲醇燃料电池是质子交换燃料电池，其中甲醇用作燃料。这些燃料电池的重要优点是甲醇运输和存储的简便性。在这项研究中，合成了包括石墨烯量子点（GQDs），功能化多壁碳纳米管（f-MWCNTs）和GQDs / f-MWCNTs复合物的甲醇燃料电池电催化剂。合成电子催化剂的结构通过扫描电子显微镜（SEM），拉曼光谱，紫外可见光谱，傅立叶变换红外光谱（FTIR），电化学阻抗谱（EIS）和X射线衍射（XRD）方法突出显示。之后，计算出GQD，f-MWCNT和GQD / f-MWCNT的有效表面积（ESA）。最后，

更新日期：2020-05-27

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11