Construction of Co-Mn Prussian blue analog hollow spheres for efficient aqueous Zn-ion batteries

Construction of Co-Mn Prussian blue analog hollow spheres for efficient aqueous Zn-ion batteries

Prussian blue analogs (PBAs) are considered as reliable and promising cathode materials for aqueous Zn-ion batteries (AZIBs), but they suffer from low capacity and poor cycling stability due to insufficient active sites and structural damage caused by the ion insertion/extraction processes. Herein,...

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Bibliographic Details
Main Authors: Zeng, Yinxiang, Lu, Xue Feng, Zhang, Song Lin, Luan, Deyan, Li, Sheng, Lou, Xiong Wen David
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2022
Subjects:
Engineering::Chemical engineering
Hollow Spheres
Zn-ion Batteries
Online Access:https://hdl.handle.net/10356/163144
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Institution: Nanyang Technological University
Language: English
Description
Summary:Prussian blue analogs (PBAs) are considered as reliable and promising cathode materials for aqueous Zn-ion batteries (AZIBs), but they suffer from low capacity and poor cycling stability due to insufficient active sites and structural damage caused by the ion insertion/extraction processes. Herein, a template-engaged ion exchange approach has been developed for the synthesis of Co-substituted Mn-rich PBA hollow spheres (CoMn-PBA HSs) as cathode materials for AZIBs. Benefiting from the multiple advantageous features including hollow structure, abundant active sites, fast Zn2+ ion diffusion, and partial Co substitution, the CoMn-PBA HSs electrode shows efficient zinc ion storage properties in terms of high capacity, decent rate capability and prolonged cycle life.

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