Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries
Understanding the oxygen reduction reaction kinetics in the presence of Na ions and the formation mechanism of discharge product(s) is key to enhancing Na–O2 battery performance. Here we show NaO2 as the only discharge product from Na–O2 cells with carbon nanotubes in 1,2-dimethoxyethane from X-ray...
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| Format: | Article |
| Language: | en_US |
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American Chemical Society (ACS)
2016
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| Online Access: | http://hdl.handle.net/1721.1/105427 https://orcid.org/0000-0002-6525-4891 https://orcid.org/0000-0002-6442-9901 https://orcid.org/0000-0003-3649-1270 https://orcid.org/0000-0002-2919-3235 https://orcid.org/0000-0001-7840-6682 https://orcid.org/0000-0001-6755-8760 https://orcid.org/0000-0002-0121-8285 |
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| author | Ortiz Vitoriano, Nagore Batcho, Thomas Peter Kwabi, David Gator Han, Binghong Pour, Nir Yao, Koffi Pierre Claver Thompson, Carl Vernette Shao-Horn, Yang |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Ortiz Vitoriano, Nagore Batcho, Thomas Peter Kwabi, David Gator Han, Binghong Pour, Nir Yao, Koffi Pierre Claver Thompson, Carl Vernette Shao-Horn, Yang |
| author_sort | Ortiz Vitoriano, Nagore |
| collection | MIT |
| description | Understanding the oxygen reduction reaction kinetics in the presence of Na ions and the formation mechanism of discharge product(s) is key to enhancing Na–O2 battery performance. Here we show NaO2 as the only discharge product from Na–O2 cells with carbon nanotubes in 1,2-dimethoxyethane from X-ray diffraction and Raman spectroscopy. Sodium peroxide dihydrate was not detected in the discharged electrode with up to 6000 ppm of H2O added to the electrolyte, but it was detected with ambient air exposure. In addition, we show that the sizes and distributions of NaO2 can be highly dependent on the discharge rate, and we discuss the formation mechanisms responsible for this rate dependence. Micron-sized (∼500 nm) and nanometer-scale (∼50 nm) cubes were found on the top and bottom of a carbon nanotube (CNT) carpet electrode and along CNT sidewalls at 10 mA/g, while only micron-scale cubes (∼2 μm) were found on the top and bottom of the CNT carpet at 1000 mA/g, respectively. |
| first_indexed | 2024-09-23T13:05:02Z |
| format | Article |
| id | mit-1721.1/105427 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:05:02Z |
| publishDate | 2016 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1054272022-09-28T11:55:07Z Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries Rate-Dependent Nucleation and Growth of NaO2 in Na-O2 Batteries Ortiz Vitoriano, Nagore Batcho, Thomas Peter Kwabi, David Gator Han, Binghong Pour, Nir Yao, Koffi Pierre Claver Thompson, Carl Vernette Shao-Horn, Yang Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Electrochemical Energy Laboratory Massachusetts Institute of Technology. Research Laboratory of Electronics Ortiz Vitoriano, Nagore Batcho, Thomas Peter Kwabi, David Gator Han, Binghong Pour, Nir Yao, Koffi Pierre Claver Thompson, Carl Vernette Shao-Horn, Yang Understanding the oxygen reduction reaction kinetics in the presence of Na ions and the formation mechanism of discharge product(s) is key to enhancing Na–O2 battery performance. Here we show NaO2 as the only discharge product from Na–O2 cells with carbon nanotubes in 1,2-dimethoxyethane from X-ray diffraction and Raman spectroscopy. Sodium peroxide dihydrate was not detected in the discharged electrode with up to 6000 ppm of H2O added to the electrolyte, but it was detected with ambient air exposure. In addition, we show that the sizes and distributions of NaO2 can be highly dependent on the discharge rate, and we discuss the formation mechanisms responsible for this rate dependence. Micron-sized (∼500 nm) and nanometer-scale (∼50 nm) cubes were found on the top and bottom of a carbon nanotube (CNT) carpet electrode and along CNT sidewalls at 10 mA/g, while only micron-scale cubes (∼2 μm) were found on the top and bottom of the CNT carpet at 1000 mA/g, respectively. Seventh Framework Programme (European Commission) (Marie Curie International Outgoing Fellowship, 2007-2013)) National Science Foundation (U.S.) (MRSEC Program, award number DMR-0819762) Robert Bosch GmbH (Bosch Energy Research Network (BERN) Grant) China Clean Energy Research Center-Clean Vehicles Consortium (CERC-CVC) (award number DE-PI0000012) Skolkovo Institute of Science and Technology (Skoltech-MIT Center for Electochemical Energy Storage) 2016-11-22T19:51:33Z 2016-11-22T19:51:33Z 2015-06 2015-06 Article http://purl.org/eprint/type/JournalArticle 1948-7185 http://hdl.handle.net/1721.1/105427 Ortiz-Vitoriano, Nagore, Thomas P. Batcho, David G. Kwabi, Binghong Han, Nir Pour, Koffi Pierre Claver Yao, Carl V. Thompson, and Yang Shao-Horn. "Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries." Journal of Physical Chemistry Letters 6:13 (June 2015), pp.2636-2643. https://orcid.org/0000-0002-6525-4891 https://orcid.org/0000-0002-6442-9901 https://orcid.org/0000-0003-3649-1270 https://orcid.org/0000-0002-2919-3235 https://orcid.org/0000-0001-7840-6682 https://orcid.org/0000-0001-6755-8760 https://orcid.org/0000-0002-0121-8285 en_US http://dx.doi.org/10.1021/acs.jpclett.5b00919 Journal of Physical Chemistry Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Prof. Thompson via Angie Locknar |
| spellingShingle | Ortiz Vitoriano, Nagore Batcho, Thomas Peter Kwabi, David Gator Han, Binghong Pour, Nir Yao, Koffi Pierre Claver Thompson, Carl Vernette Shao-Horn, Yang Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title | Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title_full | Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title_fullStr | Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title_full_unstemmed | Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title_short | Rate-Dependent Nucleation and Growth of NaO[subscript 2] in Na-O[subscript 2] Batteries |
| title_sort | rate dependent nucleation and growth of nao subscript 2 in na o subscript 2 batteries |
| url | http://hdl.handle.net/1721.1/105427 https://orcid.org/0000-0002-6525-4891 https://orcid.org/0000-0002-6442-9901 https://orcid.org/0000-0003-3649-1270 https://orcid.org/0000-0002-2919-3235 https://orcid.org/0000-0001-7840-6682 https://orcid.org/0000-0001-6755-8760 https://orcid.org/0000-0002-0121-8285 |
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