Abstract
ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite, prepared though a simple one-step sol-gel synthetic technique, has been explored for the first time as an anode material. The as-prepared ZnO/NCNT nanocomposite preserves a good dispersity and homogeneity of the ZnO nanoparticles (~6 nm) which deposited on the surface of NCNT. Transmission electron microscopy (TEM) reveals the formation of ZnO nanoparticles with an average size of 6 nm homogeneously deposited on the surface of NCNT. ZnO/NCNT composite, when evaluated as an anode for lithium-ion batteries (LIBs), exhibits remarkably enhanced cycling ability and rate capability compared with the ZnO/CNT counterpart. A relatively large reversible capacity of 1013 mAhg-1 is manifested at the second cycle and a capacity of 664 mAhg-1 is retained after 100 cycles. Furthermore, the ZnO/NCNT system displays a reversible capacity of 308 mAhg-1 even at a high current density of 1600 mAg-1. These electrochemical performance enhancements are ascribed to the reinforced accumulative effects of the well-dispersed ZnO nanoparticles and doping nitrogen atoms, which can not only suppress the volumetric expansion of ZnO nanoparticles during the cycling performance but also provide a highly conductive NCNT network for ZnO anode.
| Original language | English |
|---|---|
| Article number | 1102 |
| Journal | Materials |
| Volume | 10 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Sep 21 2017 |
| Externally published | Yes |
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Keywords
- Anode
- Highly-dispersed ZnO nanoparticles
- Lithium ion battery
- Sol-gel
- ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Facile synthesis of zno nanoparticles on nitrogen-doped carbon nanotubes as high-performance anode material for lithium-ion batteries. / Li, Haipeng; Liu, Zhengjun; Yang, Shuang; Zhao, Yan; Feng, Yuting; Bakenov, Zhumabay; Zhang, Chengwei; Yin, Fuxing.
In: Materials, Vol. 10, No. 10, 1102, 21.09.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Facile synthesis of zno nanoparticles on nitrogen-doped carbon nanotubes as high-performance anode material for lithium-ion batteries
AU - Li, Haipeng
AU - Liu, Zhengjun
AU - Yang, Shuang
AU - Zhao, Yan
AU - Feng, Yuting
AU - Bakenov, Zhumabay
AU - Zhang, Chengwei
AU - Yin, Fuxing
PY - 2017/9/21
Y1 - 2017/9/21
N2 - ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite, prepared though a simple one-step sol-gel synthetic technique, has been explored for the first time as an anode material. The as-prepared ZnO/NCNT nanocomposite preserves a good dispersity and homogeneity of the ZnO nanoparticles (~6 nm) which deposited on the surface of NCNT. Transmission electron microscopy (TEM) reveals the formation of ZnO nanoparticles with an average size of 6 nm homogeneously deposited on the surface of NCNT. ZnO/NCNT composite, when evaluated as an anode for lithium-ion batteries (LIBs), exhibits remarkably enhanced cycling ability and rate capability compared with the ZnO/CNT counterpart. A relatively large reversible capacity of 1013 mAhg-1 is manifested at the second cycle and a capacity of 664 mAhg-1 is retained after 100 cycles. Furthermore, the ZnO/NCNT system displays a reversible capacity of 308 mAhg-1 even at a high current density of 1600 mAg-1. These electrochemical performance enhancements are ascribed to the reinforced accumulative effects of the well-dispersed ZnO nanoparticles and doping nitrogen atoms, which can not only suppress the volumetric expansion of ZnO nanoparticles during the cycling performance but also provide a highly conductive NCNT network for ZnO anode.
AB - ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite, prepared though a simple one-step sol-gel synthetic technique, has been explored for the first time as an anode material. The as-prepared ZnO/NCNT nanocomposite preserves a good dispersity and homogeneity of the ZnO nanoparticles (~6 nm) which deposited on the surface of NCNT. Transmission electron microscopy (TEM) reveals the formation of ZnO nanoparticles with an average size of 6 nm homogeneously deposited on the surface of NCNT. ZnO/NCNT composite, when evaluated as an anode for lithium-ion batteries (LIBs), exhibits remarkably enhanced cycling ability and rate capability compared with the ZnO/CNT counterpart. A relatively large reversible capacity of 1013 mAhg-1 is manifested at the second cycle and a capacity of 664 mAhg-1 is retained after 100 cycles. Furthermore, the ZnO/NCNT system displays a reversible capacity of 308 mAhg-1 even at a high current density of 1600 mAg-1. These electrochemical performance enhancements are ascribed to the reinforced accumulative effects of the well-dispersed ZnO nanoparticles and doping nitrogen atoms, which can not only suppress the volumetric expansion of ZnO nanoparticles during the cycling performance but also provide a highly conductive NCNT network for ZnO anode.
KW - Anode
KW - Highly-dispersed ZnO nanoparticles
KW - Lithium ion battery
KW - Sol-gel
KW - ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite
UR - http://www.scopus.com/inward/record.url?scp=85029879467&partnerID=8YFLogxK
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U2 - 10.3390/ma10101102
DO - 10.3390/ma10101102
M3 - Article
VL - 10
JO - Materials
JF - Materials
SN - 1996-1944
IS - 10
M1 - 1102
ER -