碳化
微生物燃料电池
扫描电子显微镜
催化作用
X射线光电子能谱
化学工程
材料科学
透射电子显微镜
碳纤维
退火(玻璃)
纳米技术
纳米线
核化学
化学
有机化学
电极
复合数
物理化学
复合材料
阳极
工程类
作者
Mohammed Al Murisi,Sameer Al‐Asheh,Mohammad Ali Abdelkareem,Ahmad Aidan,Khaled Elsaid,Abdul Ghani Olabi
出处
期刊:ACS omega
[American Chemical Society]
日期:2023-11-13
卷期号:8 (47): 44514-44522
标识
DOI:10.1021/acsomega.3c02544
摘要
Developing high surface area catalysts is an effective strategy to enhance the oxygen reduction reaction (ORR) in the application of microbial fuel cells (MFCs). This can be achieved by developing a catalyst based on metal-organic frameworks (MOFs) because they offer a porous active site for ORR. In this work, a novel in situ growth of 2D shell nanowires of ZIF-67 as a template for N-doped carbon (Co/NC) via a carbonization route was developed to enhance the ORR performance. The effects of different reaction times and different annealing temperatures were studied for a better ORR activity. The growth of the MOF template on the carbon cloth was confirmed using scanning electron microscopy, field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared. The Co/NC-800 exhibited an enhancement in the ORR activity as evidenced by an onset potential and half-wave potential of 0.0 vs V Ag/AgCl and -0.1 vs V Ag/AgCl, respectively, with a limited current density exceeding the commercial Pt/C. Operating Co/NC-800 on MFC revealed a maximum power density of 30 ± 2.5 mW/m2, a maximum current density of 180 ± 2.5 mA/m2.
科研通智能强力驱动
Strongly Powered by AbleSci AI