Tailoring the Electrochemical Behaviors of Bismuth Ferrite Using Ca Ion Doping

Chao-Jie Ma; Chao-Jie Ma; Chao-Jie Ma; Na Li; Na Li; Na Li; Wei-Li Song; Wei-Li Song

doi:10.3389/fmats.2020.00015

Frontiers in Materials (Jan 2020)

Tailoring the Electrochemical Behaviors of Bismuth Ferrite Using Ca Ion Doping

Chao-Jie Ma,
Chao-Jie Ma,
Chao-Jie Ma,
Na Li,
Na Li,
Na Li,
Wei-Li Song,
Wei-Li Song

Affiliations

Chao-Jie Ma: Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, China
Chao-Jie Ma: Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, China
Chao-Jie Ma: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
Na Li: Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, China
Na Li: Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, China
Na Li: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
Wei-Li Song: Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, China
Wei-Li Song: Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, China

DOI: https://doi.org/10.3389/fmats.2020.00015
Journal volume & issue: Vol. 7

Abstract

Read online

Bismuth ferrite (BFO) is considered as a significant (ABO3) perovskite ceramic in electronics and energy storage. Since the A site (Bi3+) presents electrochemical active feature, electrochemical performance of the perovskite bismuth ferrite as an electrode material is improved by proper calcium ion doping in the aqueous basic electrolyte environment. For substantially promoting the electronic transport capabilities, Ca2+ ions are used for substituting partial Bi3+ ions at A site via introducing oxygen vacancies. The electrochemical performance suggests that utilization of 10% Ca2+ doping (BFO-10%Ca) would offer 305.5 mAh g−1 at 1 A g−1. Specifically, the assembled BFO-10%Ca//graphene asymmetric energy storage devices could deliver a stable energy storage capability up to 3,000 cycles at a current density of 5 A g−1. The results indicate that heterogeneous ion doping would be an effective strategy for improving the electrochemical performance for energy storage application.

Published in Frontiers in Materials

ISSN: 2296-8016 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology
Website: https://www.frontiersin.org/journals/materials

About the journal

Abstract

Keywords