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High Capacity MoO2/Graphite Oxide Composite Anode for Lithium-Ion Batteries
1†Department of Chemical Engineering, New Mexico State University, Las Cruces, New Mexico 88003, United States.
The Journal of Physical Chemistry Letters
|August 20, 2015
Summary
Synthesized nanostructured molybdenum dioxide (MoO2)/graphite oxide (GO) composites show enhanced performance for energy storage. The MoO2/GO composite demonstrates superior reversible capacity and rate capability due to synergistic effects.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Molybdenum dioxide (MoO2) is a promising material for energy storage applications.
- Graphite oxide (GO) can enhance the properties of other materials through synergistic interactions.
Purpose of the Study:
- To synthesize nanostructured MoO2/graphite oxide (GO) composites.
- To investigate the structural evolution and electrochemical performance of MoO2/GO composites.
Main Methods:
- Solvothermal synthesis method.
- X-ray diffraction (XRD) and transmission electron microscopy (TEM) for structural analysis.
- Electrochemical testing to evaluate capacity and cycling performance.
Main Results:
- MoO2 nanostructures (rods to nanoparticles) uniformly distributed on GO sheets.
- MoO2/GO composite with 10 wt% GO achieved 720 mAh/g at 100 mA/g and 560 mAh/g at 800 mA/g after 30 cycles.
- Demonstrated improved reversible capacity, rate capacity, and cycling stability.
Conclusions:
- The synthesized MoO2/GO composites exhibit excellent electrochemical performance.
- Synergistic effects between MoO2 and GO contribute to enhanced energy storage properties.
- Nanostructured MoO2/GO composites are promising for advanced energy storage devices.
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