氧-硼共修饰多壁碳纳米管载铂催化剂的制备及氧还原活性  

Preparation of platinum catalysts supported on oxygen-boron co-modification multi-wall carbon nanotubes and their oxygen reducing activity

作　　者：薛盛鼎 顾军[1,2,3] 韩梦飞 祝苏君 于涛 XUE Sheng-Ding;GU Jun;HAN Meng-Fei;ZHU Su-Jun;YU Tao(School of Physics,Nanjing University,Nanjing 210093,China;Nanjing Doinpower Technology Co.,Ltd.,Nanjing 211100,China;National Laboratory of Solid State Microstructures,Nanjing 210093,China;Nantong Institute of Materials Engineering Nanjing University,Nantong,Jiangsu 226019,China)

机构地区：[1]南京大学物理学院,南京210093 [2]南京东焱科技有限公司,南京211100 [3]固体微结构国家实验室,南京210093 [4]南通南京大学材料工程技术研究院,南通226019

出　　处：《无机化学学报》2023年第2期281-290,共10页Chinese Journal of Inorganic Chemistry

基　　金：南通市应用基础研究基金(No.JC2021109)资助。

摘　　要：采用一种简便的方法,合成了氧-硼共修饰的多壁碳纳米管材料,以此为载体制备的铂基催化剂具有更小的铂粒径、更高的电化学表面积(40 m^(2)·g_(Pt)^(-1))和更高的氧还原活性(0.3 A·mg_(Pt)^(-1))。氧、硼在提高碳纳米管的载体分散性、控制铂颗粒的均匀性和粒径、促进氧还原反应的氧吸附/解离方面发挥着重要的作用。We synthesized an oxygen-boron co-decorated multi-walled carbon nanotube material by a simple method.After that,it was used as a carrier to prepare platinum-based catalysts and carried out a variety of characterizations.The results indicated that the platinum particles supported on this carrier showed smaller particle size,higher electrochemical surface area(40 m^(2)·g_(Pt)^(-1)),and higher oxygen reduction activity(0.3 A·mg_(Pt)^(-1)).Predictably,boron and oxygen play an important role in improving the dispersion of carbon nanotubes,controlling the uniformity and size of platinum particles,and promoting oxygen adsorption/dissociation in the oxygen reduction reaction.

关 键 词：催化剂 碳纳米管 铂 硼 氧还原活性 

分 类 号：O643.361[理学—物理化学]