Conference proceeding
Acid-leached alpha-MnO2 nanowires for electrochemical energy storage
NANOEPITAXY: MATERIALS AND DEVICES VI, v 9174, pp 91740Z-91740Z-8
01 Jan 2014
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We present synthesis, acid-leaching, characterization and electrochemistry of alpha-MnO2 nanowires with tunnel crystal structure. This material is used as a matrix for lithium ions intercalation to provide insights into the effects of postsynthesis treatment on charge storage properties. Hydrothermal treatment of precursors produced 20 - 200 nm thick and tens of microns long nanowires. Acid leaching was carried out in the concentrated nitric acid at room temperature and resulted in the change of material composition and surface area. Original alpha-MnO2 nanowires showed initial discharge specific capacity of 96 mAh/g, while acid-leached material exhibited higher capacity values. This work forms the basis for future study aimed at understanding of correlation between crystal structure, composition and morphology of the "host" matrix and nature of the "guest" ions for beyond lithium electrochemical energy storage. In addition, we demonstrate single nanowire electrochemical cells for the study of electrochemically-correlated mechanical properties of the nanowires.
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Details
- Title
- Acid-leached alpha-MnO2 nanowires for electrochemical energy storage
- Creators
- Bryan Byles - Drexel UniversityArunkumar Subramanian - Virginia Commonwealth UniversityEkaterina Pomerantseva - Drexel University
- Contributors
- N P Kobayashi (Editor)A A Talin (Editor)A V Davydov (Editor)M S Islam (Editor)
- Publication Details
- NANOEPITAXY: MATERIALS AND DEVICES VI, v 9174, pp 91740Z-91740Z-8
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 8
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000354521700009
- Scopus ID
- 2-s2.0-84937459644
- Other Identifier
- 991019168138804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Materials Science, Multidisciplinary
- Optics
- Physics, Applied