催化作用
X射线光电子能谱
拉曼光谱
碳纤维
材料科学
生物量(生态学)
化学工程
旋转圆盘电极
扫描电子显微镜
氮气
纳米技术
无机化学
化学
电化学
电极
有机化学
复合材料
循环伏安法
复合数
物理化学
海洋学
工程类
地质学
物理
光学
作者
Kätlin Kaare,Eric Yu,Aleksandrs Voļperts,Gaļina Dobele,Aivars Zhurinsh,Alexander Dyck,Gediminas Niaura,Loreta Tamašauskaitė–Tamašiūnaitė,Eugenijus Norkus,Mindaugas Andrulevičius,Mati Danilson,Ivar Kruusenberg
出处
期刊:ACS omega
[American Chemical Society]
日期:2020-09-11
卷期号:5 (37): 23578-23587
被引量:40
标识
DOI:10.1021/acsomega.0c01974
摘要
In this recent decade, great interest has risen to develop metal-free and cheap, biomass-derived electrocatalysts for oxygen reduction reaction (ORR). Herein, we report a facile strategy to synthesize an electrochemically active nanocarbon material from the renewable and biological resource, wood biomass. The ORR activity of the catalyst material was investigated in 0.1 M KOH solution by employing the rotating disc electrode method. Scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy were employed to obtain more information about the catalyst material's morphology and composition. The material exhibits outstanding electrocatalytic activity with low onset potential and high current density, similar to that of a commercial Pt/C catalyst in an alkaline medium. The results clearly ascertain that wooden biomass can be easily transformed into novel carbon nanostructures with superior ORR activity and possibility to be used in fuel cells and metal–air batteries.
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