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Mn by B. N. Vamsi Krishna; Sasidharachari Kammari; Jae Su Yu is a Engineering article available to read on EtoBox.

What is Mn about?

Hierarchical micro/nanostructures are believed to be magnificent electrocatalyst materials capable of competing with noble metals and the most expensive catalyst materials for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Herein, Mn 2 V 2 O 7 -based hierarchical spiked ball structures (MVO SBs) were synthesized using a simple hydrothermal technique as a bifunctional oxygen catalyst for rechargeable Zn-air batteries. The linear sweep voltammetry by a rotating disc electrode was used to investigate the ORR and OER properties and their mechanisms, and the charge transfer mechanism was also studied by electrochemical impedance spectroscopy analysis. When compared with platinum with carbon black (Pt/C), the MVO SB catalyst material exhibited comparable ORR and OER properties. Furthermore, the MVO SB material revealed a 4e À transfer pathway in an electrolyte solution. Furthermore, the prepared MVO SB material demonstrated a lower charge-discharge voltage gap when compared with Pt/C material, which is

Who reads Mn?

Author

B. N. Vamsi Krishna; Sasidharachari Kammari; Jae Su Yu

Publisher

Hindawi Limited

Published

2022

Language

EN

Field

Engineering (Physical Sciences)