TY - JOUR
T1 - Polyphosphazene-derived heteroatoms-doped carbon materials for supercapacitor electrodes
AU - Liu, Wei
AU - Zhang, Shuangkun
AU - Dar, Sami Ullah
AU - Zhao, Yi
AU - Akram, Raheel
AU - Zhang, Xinfang
AU - Jin, Shao
AU - Wu, Zhanpeng
AU - Wu, Dezhen
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018/4
Y1 - 2018/4
N2 - A novel idea has been developed to realize the formation of heteroatoms doped carbon materials by exploiting a precursor of a single compound, polyphosphazene, for supercapacitor applications. Heteroatoms (N, P, O) containing polymer, poly(diaryloxyphosphazene) (PDPP) was synthesized by the substitution reaction of linear polydichlorophosphazene (PDCP) with sodium phenolate. After carbonization of PDPP, a nanoporous carbon materials doped with N, P and O were obtained. The BET studies had shown that the surface area of this activated carbon material reached up to 1798 m2 g−1 with pore volume up to 0.91 cm3 g−1. When applied as supercapacitor electrodes, this heteroatoms doped carbon material exhibited a specific capacitance of 105 F g−1 at 0.3 A g−1 in a two-electrode cell (up to 329 F g−1 at 0.5 A g−1 in a three-electrode cell) and better rate performance with 55.2% of maintenance from 0.3 to 10 A g−1 in a two-electrode cell (63.8% of maintenance from 0.5 to 50 A g−1 in a three-electrode cell). Owing to the large surface area, adequate pore volume, stable cycling performance and good rate capabilities of our synthesized material, it has potential application as supercapacitor electrodes.
AB - A novel idea has been developed to realize the formation of heteroatoms doped carbon materials by exploiting a precursor of a single compound, polyphosphazene, for supercapacitor applications. Heteroatoms (N, P, O) containing polymer, poly(diaryloxyphosphazene) (PDPP) was synthesized by the substitution reaction of linear polydichlorophosphazene (PDCP) with sodium phenolate. After carbonization of PDPP, a nanoporous carbon materials doped with N, P and O were obtained. The BET studies had shown that the surface area of this activated carbon material reached up to 1798 m2 g−1 with pore volume up to 0.91 cm3 g−1. When applied as supercapacitor electrodes, this heteroatoms doped carbon material exhibited a specific capacitance of 105 F g−1 at 0.3 A g−1 in a two-electrode cell (up to 329 F g−1 at 0.5 A g−1 in a three-electrode cell) and better rate performance with 55.2% of maintenance from 0.3 to 10 A g−1 in a two-electrode cell (63.8% of maintenance from 0.5 to 50 A g−1 in a three-electrode cell). Owing to the large surface area, adequate pore volume, stable cycling performance and good rate capabilities of our synthesized material, it has potential application as supercapacitor electrodes.
UR - http://www.scopus.com/inward/record.url?scp=85038207609&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2017.12.016
DO - 10.1016/j.carbon.2017.12.016
M3 - 文章
AN - SCOPUS:85038207609
SN - 0008-6223
VL - 129
SP - 420
EP - 427
JO - Carbon
JF - Carbon
ER -