Microwave Assisted Hydrothermal Way Towards Highly Crystalized N-Doped Carbon Quantum Dots and Their Oxygen Reduction Performance  

作　　者：HUANG He LIANG Chen SHA Haoyan YU Ying LOU Yue CHEN Cailing LI Chunguang CHEN Xiaobo SHI Zhan FENG Shouhua 

机构地区：[1]State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,P.R.China [2]School of Engineering,EMIT University,Carlton,VIC 3053,Australia [3]Department of Chemical Engineering,University of California,Davis,CA 95616,USA

出　　处：《Chemical Research in Chinese Universities》2019年第2期171-178,共8页高等学校化学研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.21771084,21771077,21621001);the National Key Research and Development Program of China(No.2016YFB0701100);the"111"Project,China(No.B17020);the Program for Science and Technology Innovative Research Team of Jilin University,China.

摘　　要：We proposed a green microwave-assisted hydrothermal way to synthesize highly crystalized N-doped carbon quantum dots(N-CQDs).The N-CQDs obtained by this microwave method have good crystalline degree(ID/IG=0.6)and a high molar ratio of N/C(11.1%)comparing with those obtained from traditional top-down method.The experimental results show that glycerine plays a key role ill the fonnation of highly crystalized N-CQDs.The as-prepared N-CQDs have good luminescent property and may be utilized as fluorescent probe to detect ions or mark cells.As the majority of N atoms in the N-CQDs were pyridinic type(64.8%),the as-prepared N-CQDs were used as a catalyst for the oxygen reduction reaction(ORR)electrocatalysis in the anode of the fuel cell(the onset potential is-0.121V),which was a 4e-transfer procedure and the catalyst showed good stability after 100 cycles.

关 键 词：Carbon-dot Nitrogen-dopping Highly-crystalized Oxygen reduction reaction(ORR) 

分 类 号：O6[理学—化学]