Phosphorus-doped porous carbon derived from rice husk as anode for lithium ion batteries

Jiaqing Wang; Zhenzhong Yang; Fusen Pan; Xiongwu Zhong; Xiaowu Liu; Lin Gu; Yan Yu

doi:10.1039/c5ra08148c

Phosphorus-doped porous carbon derived from rice husk as anode for lithium ion batteries

Jiaqing Wang, Zhenzhong Yang, Fusen Pan, Xiongwu Zhong, Xiaowu Liu, Lin Gu, Yan Yu

Research output: Contribution to journal › Article › peer-review

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Abstract

We developed a simple and scalable chemical method to obtain phosphorus-doped porous carbon (P-PC-RH) by optimized acid treatment and thermal annealing of rice husk with triphenylphosphine (TPP). After doping with phosphorus (doping level of ∼4.14 at% P), the P-PC-RH electrode increases by almost half the reversible capacity (757 mA h g^-1 after 100 cycles at 100 mA g^-1) of porous carbon without phosphorus doping (PC-RH-x, x = 2, 4, 6). When cycled at a high current of 2000 mA g^-1, it still delivers a reversible specific capacity of 382 mA h g^-1. The improved electrochemical performance of P-PC-RH is attributed to the synergetic effect of the 3D interconnected porous structure and phosphorus doping, which can maintain perfect electrical conductivity throughout the electrode and enhance electrochemical activities for lithium storage.

Original language	English
Pages (from-to)	55136-55142
Number of pages	7
Journal	RSC Advances
Volume	5
Issue number	68
DOIs	https://doi.org/10.1039/c5ra08148c
State	Published - 2015
Externally published	Yes

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10.1039/c5ra08148c

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title = "Phosphorus-doped porous carbon derived from rice husk as anode for lithium ion batteries",

abstract = "We developed a simple and scalable chemical method to obtain phosphorus-doped porous carbon (P-PC-RH) by optimized acid treatment and thermal annealing of rice husk with triphenylphosphine (TPP). After doping with phosphorus (doping level of ∼4.14 at\% P), the P-PC-RH electrode increases by almost half the reversible capacity (757 mA h g-1 after 100 cycles at 100 mA g-1) of porous carbon without phosphorus doping (PC-RH-x, x = 2, 4, 6). When cycled at a high current of 2000 mA g-1, it still delivers a reversible specific capacity of 382 mA h g-1. The improved electrochemical performance of P-PC-RH is attributed to the synergetic effect of the 3D interconnected porous structure and phosphorus doping, which can maintain perfect electrical conductivity throughout the electrode and enhance electrochemical activities for lithium storage.",

author = "Jiaqing Wang and Zhenzhong Yang and Fusen Pan and Xiongwu Zhong and Xiaowu Liu and Lin Gu and Yan Yu",

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doi = "10.1039/c5ra08148c",

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T1 - Phosphorus-doped porous carbon derived from rice husk as anode for lithium ion batteries

AU - Wang, Jiaqing

AU - Yang, Zhenzhong

AU - Pan, Fusen

AU - Zhong, Xiongwu

AU - Liu, Xiaowu

AU - Gu, Lin

AU - Yu, Yan

PY - 2015

Y1 - 2015

N2 - We developed a simple and scalable chemical method to obtain phosphorus-doped porous carbon (P-PC-RH) by optimized acid treatment and thermal annealing of rice husk with triphenylphosphine (TPP). After doping with phosphorus (doping level of ∼4.14 at% P), the P-PC-RH electrode increases by almost half the reversible capacity (757 mA h g-1 after 100 cycles at 100 mA g-1) of porous carbon without phosphorus doping (PC-RH-x, x = 2, 4, 6). When cycled at a high current of 2000 mA g-1, it still delivers a reversible specific capacity of 382 mA h g-1. The improved electrochemical performance of P-PC-RH is attributed to the synergetic effect of the 3D interconnected porous structure and phosphorus doping, which can maintain perfect electrical conductivity throughout the electrode and enhance electrochemical activities for lithium storage.

AB - We developed a simple and scalable chemical method to obtain phosphorus-doped porous carbon (P-PC-RH) by optimized acid treatment and thermal annealing of rice husk with triphenylphosphine (TPP). After doping with phosphorus (doping level of ∼4.14 at% P), the P-PC-RH electrode increases by almost half the reversible capacity (757 mA h g-1 after 100 cycles at 100 mA g-1) of porous carbon without phosphorus doping (PC-RH-x, x = 2, 4, 6). When cycled at a high current of 2000 mA g-1, it still delivers a reversible specific capacity of 382 mA h g-1. The improved electrochemical performance of P-PC-RH is attributed to the synergetic effect of the 3D interconnected porous structure and phosphorus doping, which can maintain perfect electrical conductivity throughout the electrode and enhance electrochemical activities for lithium storage.

UR - https://www.scopus.com/pages/publications/84933521755

U2 - 10.1039/c5ra08148c

DO - 10.1039/c5ra08148c

M3 - 文章

AN - SCOPUS:84933521755

SN - 2046-2069

VL - 5

SP - 55136

EP - 55142

JO - RSC Advances

JF - RSC Advances

IS - 68

ER -

Phosphorus-doped porous carbon derived from rice husk as anode for lithium ion batteries

Abstract

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