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当前位置: 首页 > 文章 > 氮掺杂碳基非金属催化剂的制备、表征及氧还原活性的研究 石河子大学学报(自然科学版) 2016,34 (5) 547-551
Position: Home > Articles > Preparation and characterization of N-doped carbon based metal-free catalyst and its catalytic activity for oxygen reduction reaction Journal of Shihezi University(Natural Science) 2016,34 (5) 547-551

氮掺杂碳基非金属催化剂的制备、表征及氧还原活性的研究

作  者：
杨浚蓬;朱明远;代斌
单  位：
石河子大学化学化工学院/新疆兵团化工绿色过程重点实验室/省部共建国家重点实验室培育基地
关键词：
氮掺杂;碳纳米管;氧还原
摘  要：
燃料电池是一种清洁高效的发电装置,然而其阴极氧还原反应(ORR)动力学缓慢,往往需要贵金属作为催化剂,制约了燃料电池的应用与发展。为了寻找相对廉价高效的氧还原催化剂,本研究以多壁碳纳米管(MWCNTs)为载体,制备了氮掺杂碳纳米管外包多孔碳(CNTs@MPC-N)催化剂。通过X-射线衍射(XRD)分析,证明了碳纳米管外壁所包裹的碳层为无定型碳;X-射线光电子能谱(XPS)分析结果表明,N元素成功掺入到了催化剂中。采用透射电镜(TEM)和电化学线性扫描(LSV)等对催化剂的形态和电化学性能进行了表征,结果表明:该催化剂催化氧还原反应过程为4电子过程,碳层的包覆有利于氮元素的掺杂,与其他氮掺杂碳基非金属催化剂相比,氮含量提高了2%~3%。本研究为提高掺杂氮含量提供了新的方法,基于目前的研究现状,展望了氮掺杂碳基非金属催化剂在燃料电池中的应用前景及未来的发展趋势。
译  名：
Preparation and characterization of N-doped carbon based metal-free catalyst and its catalytic activity for oxygen reduction reaction
作  者：
YANG Junpeng;ZHU Mingyuan;DAI Bin;The Key Laboratory of Green Progressing for Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering,Shihezi University;
关键词：
nitrogen doping;;carbon nanotubes;;oxygen reduction reaction
摘  要：
Fuel cell is a kind of clean and efficient power generation device,however,oxygen reduction kinetics of the reaction is slow,often requiring precious metal as a catalyst,which restricts its application and development.With the aim of finding a kind of commercial and effective catalysis,in this study,multi-walled carbon nanotubes(MWCNTs) as the carrier and we prepared nitrogen-doped carbon nanotubes outsourcing multi-pore carbon(CNTs@MPC-N) catalyst.X-ray diffraction(XRD)analysis proved that the outer wall of the carbon nanotubes wrapped by amorphous carbon.X-ray photoelectron spectroscopy(XPS) analysis showed that the nitrogen was doped into the material successfully.TEM,LSV and other morphology and electrochemical properties of the catalyst were characterized.All results show that the reaction follows the four-electron process,and the carbon layer is benefit to doping with nitrogen.Comparing with other catalysts,the nitrogen content of this catalyst has an increase of 2% to 3%.This study provides a new method to improve the doping nitrogen content.Based on the current status of research,we proposed their application prospects as catalysts in full cell,as well as the developing trend of the doped carbon catalyst in the future.

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