Abstract
Simple synthesis of multifunctional electrocatalysts with plentiful active sites from earth-abundant materials is especially fascinating. Here, N-doped defective carbon with trace Co (1.5 wt%) was prepared via a scalable one pot solid pyrolysis process. The sample exhibits efficient bifunctional OER/ORR activity in alkaline, mainly ascribed to the unique micro-mesoporous structure (1–3 nm), high population of graphitic-N doping (up to 49.0%), abundant defects and the encapsulated Co nanoparticles with graphitized carbon. The according rechargeable liquid Zn-air batteries showed excellent performance (maximum power density of 154.0 mW cm−2; energy density of 773 Wh kg−1 at 5 mA cm−2 and charging-discharging cycling stability over 100 cycles). As a proof-of-concept, the flexible, rechargeable all-solid-state Zn-air batteries were constructed, and displayed a maximum power density as high as 45.9 mW cm−2, among the top level of those reported previously.
| Original language | English |
|---|---|
| Pages (from-to) | 548-555 |
| Number of pages | 8 |
| Journal | Science Bulletin |
| Volume | 63 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2018 May 15 |
| Externally published | Yes |
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Keywords
- Defect
- Oxygen electrocatalysts
- Rechargeable all-solid-state batteries
ASJC Scopus subject areas
- General
Cite this
N-doped defective carbon with trace Co for efficient rechargeable liquid electrolyte-/all-solid-state Zn-air batteries. / Chen, Zhiyan; Wang, Qichen; Zhang, Xiaobin; Lei, Yongpeng; Hu, Wei; Luo, Yao; Wang, Yaobing.
In: Science Bulletin, Vol. 63, No. 9, 15.05.2018, p. 548-555.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - N-doped defective carbon with trace Co for efficient rechargeable liquid electrolyte-/all-solid-state Zn-air batteries
AU - Chen, Zhiyan
AU - Wang, Qichen
AU - Zhang, Xiaobin
AU - Lei, Yongpeng
AU - Hu, Wei
AU - Luo, Yao
AU - Wang, Yaobing
PY - 2018/5/15
Y1 - 2018/5/15
N2 - Simple synthesis of multifunctional electrocatalysts with plentiful active sites from earth-abundant materials is especially fascinating. Here, N-doped defective carbon with trace Co (1.5 wt%) was prepared via a scalable one pot solid pyrolysis process. The sample exhibits efficient bifunctional OER/ORR activity in alkaline, mainly ascribed to the unique micro-mesoporous structure (1–3 nm), high population of graphitic-N doping (up to 49.0%), abundant defects and the encapsulated Co nanoparticles with graphitized carbon. The according rechargeable liquid Zn-air batteries showed excellent performance (maximum power density of 154.0 mW cm−2; energy density of 773 Wh kg−1 at 5 mA cm−2 and charging-discharging cycling stability over 100 cycles). As a proof-of-concept, the flexible, rechargeable all-solid-state Zn-air batteries were constructed, and displayed a maximum power density as high as 45.9 mW cm−2, among the top level of those reported previously.
AB - Simple synthesis of multifunctional electrocatalysts with plentiful active sites from earth-abundant materials is especially fascinating. Here, N-doped defective carbon with trace Co (1.5 wt%) was prepared via a scalable one pot solid pyrolysis process. The sample exhibits efficient bifunctional OER/ORR activity in alkaline, mainly ascribed to the unique micro-mesoporous structure (1–3 nm), high population of graphitic-N doping (up to 49.0%), abundant defects and the encapsulated Co nanoparticles with graphitized carbon. The according rechargeable liquid Zn-air batteries showed excellent performance (maximum power density of 154.0 mW cm−2; energy density of 773 Wh kg−1 at 5 mA cm−2 and charging-discharging cycling stability over 100 cycles). As a proof-of-concept, the flexible, rechargeable all-solid-state Zn-air batteries were constructed, and displayed a maximum power density as high as 45.9 mW cm−2, among the top level of those reported previously.
KW - Defect
KW - Oxygen electrocatalysts
KW - Rechargeable all-solid-state batteries
UR - http://www.scopus.com/inward/record.url?scp=85046783857&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046783857&partnerID=8YFLogxK
U2 - 10.1016/j.scib.2018.04.003
DO - 10.1016/j.scib.2018.04.003
M3 - Article
AN - SCOPUS:85046783857
VL - 63
SP - 548
EP - 555
JO - Science Bulletin
JF - Science Bulletin
SN - 2095-9273
IS - 9
ER -