N and S co-doped porous carbon spheres prepared using L-cysteine as a dual functional agent for high-performance lithium-sulfur batteries.
Nitrogen and sulfur co-doped porous carbon spheres (NS-PCSs) were prepared using L-cysteine to control the structure and functionalization during the hydrothermal reaction of glucose and the subsequent activation process. As the sulfur hosts in Li-S batteries, NS-PCSs combine strong physical confinement and surface chemical interaction to improve the affinity of polysulfides to the carbon matrix.
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn and School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
Shuzhang
S
Niu
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn.
Wei
W
Lv
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.
Guangmin
G
Zhou
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn.
Yanbing
Y
He
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn.
Baohua
B
Li
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn and School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. qhyangcn@tju.edu.cn.
Quan-Hong
QH
Yang
Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China. yang.quanhong@sz.tsinghua.edu.cn fykang@sz.tsinghua.edu.cn and School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
Feiyu
F
Kang
D002244:Carbon / Q000737:chemistry*; D003545:Cysteine / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D005947:Glucose / Q000737:chemistry; D008094:Lithium / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008863:Microspheres; D009584:Nitrogen / Q000737:chemistry; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D016062:Porosity; D013237:Stereoisomerism; D013455:Sulfur / Q000737:chemistry; D013499:Surface Properties
D013455:Sulfur; D002244:Carbon; D008094:Lithium; D005947:Glucose; D003545:Cysteine; D009584:Nitrogen