Controllable assembling of highly-doped linked carbon bubbles on graphene microfolds  

作　　者：Tieqi Huang Chen Chen Yunfeng Hu Kang Hu Wenqing Wang Kun Rui Huijuan Lin Ruizi Li Jixin Zhu 

机构地区：[1]Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM),Nanjing Tech University(NanjingTech),30 South Puzhu Road,Nanjing 211816,Jiangsu,China [2]Hangzhou Gaoxi Technology Co,Ltd,6 Naxian Street,Hangzhou 311100,Zhejiang,China [3]Frontiers Science Center for Flexible Electronics,Xi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&Engineering,Northwestern Polytechnical University,127 West Youyi Road,Xi’an 710072,Shaanxi,China

出　　处：《Journal of Energy Chemistry》2021年第7期500-507,共8页能源化学（英文版）

基　　金：financially supported by the National Key R&D Program of China(2017YFA0207201);the National Natural Science Foundation of China(51872139,21905133,51902158);the NSF of Jiangsu Province(BK20170045);the Recruitment Program of Global Experts(1211019);the “Six Talent Peak”Project of Jiangsu Province(XCL-043);the Fundamental Research Funds for the Central Universities and the Recruitment Program of Global Experts(1211019,31020200QD041);the Jiangsu Province Postdoctoral Science Foundation(2019K191)。

摘　　要：Carbon-based microassemblies(CMs) have attracted significant attention in numerous applications due to their unique hierarchical structures and delicate building blocks,especially when hollow carbon spheres(HCSs) are reasonably introduced into the construction.Herein,a new design for novel HCSscombined CMs is proposed.Remarkably,the HCSs are linear carbon bubbles linked one-by-one, arranging into necklaces decorating on the graphene microfolds.Detailed thermal analysis confirm that high temperatures straighten the linked carbon bubbles into bamboo-like carbon nanofibers,evidently due to the attenuation of doping degree.Benefiting from the abundant active sites of carbon bubbles,the obtained CMs exhibit satisfactory electrocatalytic activity for oxygen reduction reactions.This work establishes a bridge to precisely control the synthesis of carbon-based hierarchical architectures.

关 键 词：Hollow carbon spheres Microassemblies SPRAY-DRYING Carbon nanofibers Oxygen reduction reaction 

分 类 号：TQ127.11[化学工程—无机化工]