DataVXACS Applied Energy MaterialsPaper
journal article·2024-02-26

In Situ Structural Self-Optimization and Oxygen Vacancy Creation to Boost the Stability of Bi-MOF Derived Bi2O3@C and BiOCl@C Anodes

Yanting Ma, Yan Tang, Yajuan Xu, Suisui Su, Shuzhen Chen, Shizheng Zheng, Changyuan Hu, Xin Li, Kejie Dai, Rongbin Zhang

ACS Applied Energy Materials· Volume 7· Issue 4
Publisher page
Source abstract

Abstract

Metal oxides are promising alkaline battery electrodes with high theoretical capacity, but the low energy density and poor stability make them far away from actual application. Herein, single Bi-MOF derived ultrastable Bi 2 O 3 @C and BiOCl@C anodes are architected via a two-for-one manner. Specifically, optimal Bi 2 O 3 @C anode with hierarchical and porous structure delivers high specific capacity (278.3 mAh g –1 at 1 A g –1 ) owing to the exposed electrochemical active sites, fast charge transfer, and efficient ion diffusion. More importantly, ultrahigh stability (110%, 5000 cycles) is achieved due to the in situ morphological self-optimization and oxygen vacancy creation. Similarly, BiOCl@C anode also displays remarkable capacity and ultralong cycling stability (94%, 15000 cycles) due to the conductive and protective carbon layer, abundant reactive centers, and ion transport channels. Moreover, the in situ phase transition of BiOCl to Bi 2 O 2 CO 3 also contributes to the outstanding stability. Our work provides rational guidance for architecting high capacitive and ultrastable anodes for aqueous rechargeable alkaline battery.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced battery technologies research · Supercapacitor Materials and Fabrication · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China

School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China

Institute of Foreign Languages, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, People’s Republic of China

The Key Laboratory for Environment and Energy Catalysis of Jiangxi Province, Nanchang University, Nanchang 330013, People’s Republic of China

Funding

National Natural Science Foundation of China · Jiangxi Science and Technology Normal University · Jiangxi Provincial Key Laboratory of Environment and Energy Catalysis, Nanchang University

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