Cationic Effect on the Electrochemical Characteristics of the Hydrothermally Grown Manganese Dioxide
Journal of Electronic Materials, ISSN: 0361-5235, Vol: 46, Issue: 4, Page: 2232-2240
2017
- 16Citations
- 9Captures
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Article Description
Hydrothermal growth of manganese dioxide (MnO) nanostructures was carried out on indium tin dioxide glass substrates at 95°C for 24 h to study the effect of cations such as K, Li, and Na on their properties. It was observed that presence of cations affected the MnO phase and morphology: amorphous MnO (no cations) showed columnar-like structure, ε-MnO (K) presented nanowires, α-MnO (Na) was composed of agglomerates of spherical nanoparticles, while β-MnO (Li) consisted of spherical aggregates of nanoparticles. The different electrochemical performance depending on the structure is expected to be useful for application in Li-ion batteries. As-grown ε-MnO exhibited lower charge resistance and higher ionic diffusion rate, providing the electrode with enhanced specific discharge capacity of 910 mAh g and capacity retention of 98% after 500 scans. Hence, K can support tunnel structures and stabilize the structure compared with the smaller cations Na and Li.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85000948306&origin=inward; http://dx.doi.org/10.1007/s11664-016-5163-4; http://link.springer.com/10.1007/s11664-016-5163-4; http://link.springer.com/content/pdf/10.1007/s11664-016-5163-4.pdf; http://link.springer.com/article/10.1007/s11664-016-5163-4/fulltext.html; https://dx.doi.org/10.1007/s11664-016-5163-4; https://link.springer.com/article/10.1007/s11664-016-5163-4
Springer Nature
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