Iron polyphthalocyanine-derived ternary-balanced Fe3O4/Fe3N/Fe-N-C@PC as a high-performance electrocatalyst for the oxygen reduction reaction

Hao, Rui1,2; Chen, Jingjing2; Wang, Zhenyu2; Zhang, Junjun2; Gan, Qingmeng2; Wang, Yanfang2; Li, Yingzhi2; Luo, Wen2; Wang, Zhiqiang2; Yuan, Huimin2; Yan, Chunliu2; Zheng, Wei2; Huang, Yanping1; Liu, Penggao1; Yan, Jun1; Liu, Kaiyu1; Liu, Chen3; Lu, Zhouguang2

2021-06-01

10.1007/s40843-021-1699-4

Science China-Materials   影响因子和分区

2095-8226

2199-4501

The oxygen reduction reaction (ORR) is the cornerstone reaction of the cathode in metal-air batteries; however, slow kinetics requires high-performance catalysts to promote the reaction. Polyphthalocyanine (PPc) has a typical chemical cross-linking structure and uniformly dispersed metal active sites, but its poor activity and conductivity limit its applications as an ORR catalyst. Herein, a manageable and convenient strategy is proposed to synthesize ternary ORR catalysts through the low-temperature pyrolysis of FePPc. The optimal catalyst, Fe3O4/Fe3N/Fe-N-C@PC-2.5, exhibits excellent ORR activity in alkaline solution with a half-wave potential of 0.90 V, which is significantly higher than that of commercial 20% Pt/C (0.84 V). Electrochemical tests and extended X-ray absorption fine structure spectroscopy reveal that the superior ORR activity of Fe3O4/Fe3N/Fe-N-C@PC-2.5 could be ascribed to the balance of its ternary components (i.e., Fe3O4, Fe3N, and Fe-N-4 species). A Zn-air battery incorporating Fe3O4/Fe3N/Fe-N-C@PC-2.5 as an air cathodic catalyst delivers a high open-circuit voltage and peak power density. During galvanostatic discharge, the battery demonstrates a specific capacity of 815.7 mA h g(-1). The facile strategy of using PPc to develop high performance composite electrocatalysts may be expanded to develop new types of catalysts in the energy field.

metal polyphthalocyanine nonprecious catalyst hierarchical porous structure oxygen reduction reaction Zn-air battery

SCI ; EI

英语

通讯

Basic Research Project of the Science and Technology Innovation Commission of Shenzhen["JCYJ20200109141640095","JCYJ20190809115413414"] ; National Natural Science Foundation of China[21671096,21905180] ; Natural Science Foundation of Guangdong Province[2018A030310225] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001]

Materials Science

Materials Science, Multidisciplinary

WOS:000663510100002

SCIENCE PRESS

20212510541418

Alkalinity ; Catalyst activity ; Crosslinking ; Electrocatalysts ; Electrolytic reduction ; Extended X ray absorption fine structure spectroscopy ; Iron ; Iron metallography ; Iron oxides ; Magnetite ; Open circuit voltage ; Oxygen ; Reaction kinetics ; Temperature ; X ray absorption ; Zinc air batteries ; Zinc compounds

Iron:545.1 ; Thermodynamics:641.1 ; Electromagnetic Waves:711 ; Chemistry, General:801.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Sources, Changsha 410083, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
3.Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen 518060, Peoples R China

Hao, Rui,Chen, Jingjing,Wang, Zhenyu,et al. Iron polyphthalocyanine-derived ternary-balanced Fe3O4/Fe3N/Fe-N-C@PC as a high-performance electrocatalyst for the oxygen reduction reaction[J]. Science China-Materials,2021,64:2987-2996.

Hao, Rui.,Chen, Jingjing.,Wang, Zhenyu.,Zhang, Junjun.,Gan, Qingmeng.,...&Lu, Zhouguang.(2021).Iron polyphthalocyanine-derived ternary-balanced Fe3O4/Fe3N/Fe-N-C@PC as a high-performance electrocatalyst for the oxygen reduction reaction.Science China-Materials,64,2987-2996.

Hao, Rui,et al."Iron polyphthalocyanine-derived ternary-balanced Fe3O4/Fe3N/Fe-N-C@PC as a high-performance electrocatalyst for the oxygen reduction reaction".Science China-Materials 64(2021):2987-2996.