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Enhancement on $PrBa_{0.5}Sr_{0.5}Co_{1.5}Fe_{0.5}O_{5}$ Electrocatalyst Performance in the Application of Zn-Air Battery
| Content Provider | MDPI |
|---|---|
| Author | Wang, Chengcheng Zheng, Ziheng Chen, Zian Luo, Xinlei Hou, Bingxue Gholizadeh, Mortaza Gao, Xiang Fan, Xincan Tan, Zanxiong |
| Copyright Year | 2022 |
| Description | Due to the insufficient stability and expensive price of commercial precious metal catalysts like Pt/C and $IrO_{2}$, it is critical to study efficiently, stable oxygen reduction reaction as well as oxygen evolution reaction (ORR/OER) electrocatalysts of rechargeable Zn-air batteries. $PrBa_{0.5}Sr_{0.5}Co_{1.5}Fe_{0.5}O_{5}$ (PBSCF) double perovskite was adopted due to its flexible electronic structure as well as higher electro catalytic activity. In this study, PBSCF was prepared by the citrate-EDTA method and the optimized amount of PBSCF-Pt/C composite was used as a potential ORR/OER bifunctional electrocatalyst in 0.1 M KOH. The optimized composite exhibited excellent OER intrinsic activity with an onset potential of 1.6 V and Tafel slope of 76 mV/dec under $O_{2}$-saturated 0.1 M KOH. It also exhibited relatively competitive ORR activity with an onset potential of 0.9 V and half-wave potential of 0.78 V. Additionally, Zn–air battery with PBSCF composite catalyst showed relatively good stability. All these results illustrate that PBSCF-Pt/C composite is a promising bifunctional electrocatalyst for rechargeable Zn-air batteries. |
| Starting Page | 800 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal12070800 |
| Journal | Catalysts |
| Issue Number | 7 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-20 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Electrochemistry Prba0.5sr0.5co1.5fe0.5o5 Double Perovskite Orr Oer Rechargeable Zn-air Battery |
| Content Type | Text |
| Resource Type | Article |
