Hydrophobic-aerophilic composite catalysts enable the fast-charging Zn-air battery to operate 1200 h at 50 mA cm-2

Xu, Zian1,2; Jiao, Chuanlai2; Shu, Zheng1; Xia, Yu5; Chen, Shaoqing3; Chen, Shi1; Wang, Hsing-Lin2,4

2024-02-01

10.1016/j.cej.2024.148798

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

High -efficient bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are central to Zn -air batteries (ZABs). However, the bifunctional activity of catalysts is still unsatisfactory, which restricts the fast -charge performance of ZABs. In this work, we constructed a hydrophobic-aerophilic bifunctional catalyst, where CoFe nanoparticles (NPs) and single atoms (SAs) are separately loaded on zeolite imidazolate fame (ZIF)-derived carbon and hollow carbon tubes respectively (CoFe NP@SA). Thereinto, CoFe SAs are known to be highly active to ORR reaction. Moreover, the in -situ Raman illustrates that CoFe NPs are transformed to CoOOH and FeOOH by electrochemical reconstruction, which can boost the OER activity. Furthermore, the hydrophobic-aerophilic surface can repel water molecules to create abundant solid-liquid-gas three-phase reaction interfaces and expose active sites, which consequently promote the diffusion of reactive molecules/ions across the interface and the oxygen adsorption. Thus, the CoFe NP@SA catalyst exhibit an ultralow ORR/OER potential gap of 0.6 V. After assembled as zinc -air battery (ZAB), it demonstrates a low charge potential (2.09 V) under a high current density of 50 mA cm -2 with the 1200-hour durability. This strategy paves the way to realize the high-power-density and fast-charging ZABs.

Hydrophobic-aerophilic surface Bifunctional catalysts Graphitic carbon nanotubes Electrochemical reconstruction Fast-charging Zn -air batteries

SCI

英语

通讯

Southern University of Science and Technology, Shenzhen["518055","Y01256331"] ; Macau Science and Technology Development Fund["FDCT 0092/2019/A2","0013/2021/AMJ","0082/2022/A2","MYRG2020-00283-IAPME","MYRG2022-00266-IAPME","(MYRG-GRG2023-00224-IAPME-UMDF)"]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:001167042400001

ELSEVIER SCIENCE SA

ENGINEERING

Web of Science

1.Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Taipa 999078, Macao, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Soochow Univ, Soochow Inst Energy & Mat Innovat, Coll Energy, Jiangsu Prov Key Lab Adv Carbon Mat & Wearable Ene, Suzhou 215006, Peoples R China
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
5.Stockholm Univ, Dept Mat & Environm Chem, Stockholm, Sweden

Xu, Zian,Jiao, Chuanlai,Shu, Zheng,et al. Hydrophobic-aerophilic composite catalysts enable the fast-charging Zn-air battery to operate 1200 h at 50 mA cm-2[J]. CHEMICAL ENGINEERING JOURNAL,2024,481.

Xu, Zian.,Jiao, Chuanlai.,Shu, Zheng.,Xia, Yu.,Chen, Shaoqing.,...&Wang, Hsing-Lin.(2024).Hydrophobic-aerophilic composite catalysts enable the fast-charging Zn-air battery to operate 1200 h at 50 mA cm-2.CHEMICAL ENGINEERING JOURNAL,481.

Xu, Zian,et al."Hydrophobic-aerophilic composite catalysts enable the fast-charging Zn-air battery to operate 1200 h at 50 mA cm-2".CHEMICAL ENGINEERING JOURNAL 481(2024).