Conjugated microporous polymer derived hierarchically porous N-rich nanocarbon as a durable electrocatalyst for oxygen reduction reaction in Zn-air battery

Liu, Lunjie1,2; Xu, Zian1,2; Xia, Yu1,3; Gao, Mei-Yan4; Jin, Qin5; Zheng, Baobing6; Liu, Chongxuan7; Chen, Shaoqing1,8; Zhang, Zhe5; Wang, Hsing-Lin1,2

2024-10-01

10.1016/j.cej.2024.155560

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Nitrogen (N)-doped carbon materials with porous structures are widespread in electrocatalysis for clean energy and environmental remediation applications. However, the synergistic design of hierarchical porous structures and active sites remains challenging. Here, we present a facile and general strategy of using conjugated microporous polymers (CMPs) as the precursors to create in-situ N-doped nanocarbon electrocatalysts through high-temperature pyrolysis. The obtained hierarchically porous carbon sample of TEPT-TA-800 can retain the nanoparticle morphology and high porosity after carbonization and demonstrates exceptional oxygen reduction reaction (ORR) performance with a positive onset potential of 0.94 V vs. RHE and half-wave potential of 0.85 V vs. RHE in an alkaline electrolyte. Theoretical calculations reveal that with the presence of triazine rings, the binding affinity of the ORR intermediates (*OOH, *O, and *OH) and the stability of adsorbed oxygen on TEPTTA-800 can be improved, which positively impacts the ORR process. Furthermore, TEPT-TA-800 serves as the cathode to construct a Zn-air battery (ZAB), which exhibits superior peak power density (143.1 mW cm(-2)), higher specific capacity (792 mAh g(-1)), and longer-lasting stability (650 h) compared with Pt/C-based ZAB. These findings provide valuable insights into rationally designing CMP-derived carbon materials for various catalysis reactions and energy conversion applications.

Conjugated microporous polymers Carbon electrocatalysts Oxygen reduction reactions Zn-air batteries

SCI

英语

第一 ; 通讯

Key-Area Research and Development Program of Guangdong Province[2019B010941001] ; Science and Technology Program of Shenzhen[JSGG20200924171000001] ; Shenzhen Science and Technology Innovation Committee[JCYJ20200109140812302] ; Department of Science and Technology of Guangdong Province[2017ZT07Z479] ; Shenzhen Fundamental Research Scheme-General Program[JCYJ20220818100217037] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Outstanding Doctor Program of Yangzhou City "Lv Yang Jin Feng"[YZLYJFJH2022YXBS087] ; China Postdoctoral Science Foundation[2023M732998] ; National Natural Science Foundation of China[12347169]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:001315042000001

ELSEVIER SCIENCE SA

Web of Science

1.Southern Univ Sci & Technol, Coll Engn, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
3.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, England
4.Univ Limerick, Bernal Inst, Dept Chem Sci, Limerick V94T9PX, Ireland
5.Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225009, Peoples R China
6.Baoji Univ Arts & Sci, Coll Phys & Optoelect Technol, Baoji 721016, Peoples R China
7.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
8.Soochow Univ, Soochow Inst Energy & Mat Innovat, Coll Energy, Jiangsu Prov Key Lab Adv Carbon Mat & Wearable Ene, Suzhou 215006, Peoples R China

Liu, Lunjie,Xu, Zian,Xia, Yu,et al. Conjugated microporous polymer derived hierarchically porous N-rich nanocarbon as a durable electrocatalyst for oxygen reduction reaction in Zn-air battery[J]. CHEMICAL ENGINEERING JOURNAL,2024,497.

Liu, Lunjie.,Xu, Zian.,Xia, Yu.,Gao, Mei-Yan.,Jin, Qin.,...&Wang, Hsing-Lin.(2024).Conjugated microporous polymer derived hierarchically porous N-rich nanocarbon as a durable electrocatalyst for oxygen reduction reaction in Zn-air battery.CHEMICAL ENGINEERING JOURNAL,497.

Liu, Lunjie,et al."Conjugated microporous polymer derived hierarchically porous N-rich nanocarbon as a durable electrocatalyst for oxygen reduction reaction in Zn-air battery".CHEMICAL ENGINEERING JOURNAL 497(2024).