Pyridinic-N-Dominated Doped Defective Graphene as a Superior Oxygen Electrocatalyst for Ultrahigh-Energy-Density Zn–Air Batteries

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成果类型：

期刊论文

作者：

Wang, Qichen;Ji, Yujin;Lei, Yongpeng*;Wang, Yaobing;Wang, Yingde;...

通讯作者：

Lei, Yongpeng;Li, Youyong;Wang, Shuangyin

作者机构：

[Wang, Qichen; Lei, Yongpeng] Cent South Univ, Sch Aeronaut & Astronaut, Changsha 410083, Hunan, Peoples R China.

[Wang, Qichen; Lei, Yongpeng] Cent South Univ, Sci & Technol High Strength Struct Mat Lab, Changsha 410083, Hunan, Peoples R China.

[Wang, Qichen; Lei, Yongpeng] Natl Univ Def Technol, Coll Basic Educ, Changsha 410073, Hunan, Peoples R China.

[Wang, Qichen] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.

[Li, Youyong; Ji, Yujin] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China.

通讯机构：

[Lei, Yongpeng] C

[Lei, Yongpeng] N

[Li, Youyong] S

[Wang, Shuangyin] H

Cent South Univ, Sch Aeronaut & Astronaut, Changsha 410083, Hunan, Peoples R China.

语种：

英文

期刊：

ACS Energy Letters

ISSN：

2380-8195

年：

2018

卷：

期：

页码：

1183-+

DOI：

10.1021/acsenergylett.8b00303

基金类别：

Yongpeng Lei thanks the Research Project of NUDT (ZK16-03-32). Yingde Wang acknowledges support from the National Natural Science Foundation of China (51773226). The authors also acknowledge support from the Provincial Natural Science Foundation of Hunan (Grant no. 2016TP1009).

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

Identification of catalytic sites for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in carbon materials remains a great challenge. Here, we construct a pyridinic-N-dominated doped graphene with abundant vacancy defects. The optimized sample with an ultrahigh pore volume (3.43 cm3 g–1) exhibits unprecedented ORR activity with a half-wave potential of 0.85 V in alkaline. For the first time, density functional theory results indicate that the quadri-pyridinic N-doped carbon site synergized with a vacancy defect is the active...

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Pyridinic-N-Dominated Doped Defective Graphene as a Superior Oxygen Electrocatalyst for Ultrahigh-Energy-Density Zn–Air Batteries

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