Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Gonu | - |
dc.contributor.author | Oh, Misol | - |
dc.contributor.author | Park, Yiseul | - |
dc.date.available | 2017-07-05T08:33:53Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2016-09 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/2194 | - |
dc.description.abstract | As an alternative to the photoelectrochemical water splitting for use in the fuel cells used to generate electrical power, this study set out to develop a solar energy rechargeable battery system based on photoelectrochemical water oxidation. We refer to this design as a "solar water battery". The solar water battery integrates a photoelectrochemical cell and battery into a single device. It uses a water oxidation reaction to simultaneously convert and store solar energy. With the solar water battery, light striking the photoelectrode causes the water to be photo-oxidized, thus charging the battery. During the discharge process, the solar water battery reduces oxygen to water with a high coulombic efficiency (>90%) and a high average output voltage (0.6 V). Because the reduction potential of oxygen is more positive [E0(O2/H2O) = 1.23 V vs. NHE] than common catholytes (e.g., iodide, sulfur), a high discharge voltage is produced. The solar water battery also exhibits a superior storage ability, maintaining 99% of its specific discharge capacitance after 10 h of storage, without any evidence of self-discharge. The optimization of the cell design and configuration, taking the presence of oxygen in the cell into account, was critical to achieving an efficient photocharge/discharge. © The Author(s) 2016. | - |
dc.language | English | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Solar-rechargeable battery based on photoelectrochemical water oxidation: Solar water battery | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/srep33400 | - |
dc.identifier.scopusid | 2-s2.0-84987880965 | - |
dc.identifier.bibliographicCitation | Scientific Reports, v.6 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | CELLS | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | COUPLES | - |
dc.subject.keywordPlus | DUAL-PHASE ELECTROLYTES | - |
dc.subject.keywordPlus | Electrodes | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | Photoanode | - |
dc.subject.keywordPlus | REDOX FLOW BATTERY | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | WO3 | - |
dc.citation.title | Scientific Reports | - |
dc.citation.volume | 6 | - |