Coaxial Carbon Nanotube Supported TiO2@MoO2@Carbon Core–Shell Anode for Ultrafast and High-Capacity Sodium Ion Storage
Source abstract
Abstract
The sluggish kinetic in electrode materials is one of the critical challenges in achieving high-power sodium ion storage. We report a coaxial core–shell nanostructure composed of carbon nanotube (CNT) as the core and TiO2@MoO2@C as shells for a hierarchically nanoarchitectured anode for improved electrode kinetics. The 1D tubular nanostructure can effectively reduce ion diffusion path, increase electrical conductivity, accommodate the stress due to volume change upon cycling, and provide additional interfacial active sites for enhanced charge storage and transport properties. Significantly, a synergistic effect between TiO2 and MoO2 nanostructures is investigated through ex situ solid-state nuclear magnetic resonance. The electrode exhibits a good rate capability (150 mAh g–1 at 20 A g–1) and superior cycling stability with a reversibly capacity of 175 mAh g–1 at 10 A g–1 for over 8000 cycles.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Shanghai Electrochemical Energy Devices Research Centre, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States
Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 33172, United States
Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
Zhejiang Natrium Energy Inc., Shaoxing 312000, China
Funding
Natural Science Foundation of Shanghai · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Division of Materials Research
References (67)
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