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Updated: Feb 3, 2026

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods
Published on: September 14, 2017
Atomic-level structure engineering of metal oxides for high-rate oxygen intercalation pseudocapacitance
Tao Ling1,2, Pengfei Da1, Xueli Zheng3
1Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
Atomic-level engineering of ZnCo O enhances its pseudocapacitive properties by enabling ion intercalation for superior energy storage. This breakthrough offers high energy and power density for advanced batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Atomic-level structure engineering significantly impacts material properties.
- Understanding atomic-scale effects on electrode capacitive properties is limited.
- Achieving fast ion and electron transport in electrode materials is a key challenge for energy storage.
Purpose of the Study:
- To investigate the effects of atomic-level structure engineering on the pseudocapacitive properties of ZnCo O.
- To explore the charge storage mechanism in engineered ZnCo O.
- To develop high-performance electrode materials for advanced energy storage devices.
Main Methods:
- Atomic-level structure engineering of ZnCo O.
- Characterization of charge storage mechanisms (surface redox vs. ion intercalation).
- Electrochemical performance testing (capacitance, rate capability, energy/power density).
Main Results:
- Engineered ZnCo O exhibits a shift in charge storage from surface redox to bulk ion intercalation.
- Simultaneous fast ion and electron transport achieved, approaching theoretical capacity.
- High capacitance of 450 F g-1 at 1 V s-1 and high energy density (67.3 Wh kg-1) at a power density of 1.67 kW kg-1 in a symmetric device.
Conclusions:
- Rational atomic-scale design of electrode materials is a promising strategy for advanced energy storage.
- Engineered ZnCo O offers competitive performance for high-rate pseudocapacitors.
- This work opens new avenues for developing high power/energy density electrode materials.
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