Academic Journal
Redox Reaction in Ti−Mn Redox Flow Battery Studied by X‐ray Absorption Spectroscopy
| العنوان: | Redox Reaction in Ti−Mn Redox Flow Battery Studied by X‐ray Absorption Spectroscopy |
|---|---|
| المؤلفون: | Asakura, Daisuke, Hosono, Eiji, Kitamura, Miho, Horiba, Koji, Magome, Eisuke, Setoyama, Hiroyuki, Kobayashi, Eiichi, Yuzawa, Hayato, Ohigashi, Takuji, Sakai, Takaaki, Kanega, Ryoichi, Funaki, Takashi, Sato, Yukari, Ohira, Akihiro |
| المساهمون: | New Energy and Industrial Technology Development Organization |
| المصدر: | Chemistry – An Asian Journal ; volume 18, issue 1 ; ISSN 1861-4728 1861-471X |
| بيانات النشر: | Wiley |
| سنة النشر: | 2022 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | We performed X‐ray absorption studies for the electrolytes of a Ti−Mn redox flow battery (RFB) to understand the redox reaction of the Ti/Mn ions and formation of precipitates in charged catholyte, because suppression of the disproportionation reaction is a key to improve the cyclability of Ti−Mn RFB and enhance the energy density. Hard X‐ray absorption spectroscopy with a high transmittance and soft X‐ray absorption spectroscopy to directly observe the 3 d orbitals were complementarily employed. Moreover, the Ti/Mn 3 d electronic structure for each precipitate and solution in the charged catholyte was investigated by using scanning transmission X‐ray microscopy: the valence of Mn in the precipitate is mostly attributed to 4+, and the solution includes only Mn 2+ . This charge disproportionation reaction should occur after the Mn ions in the catholyte should be oxidized from Mn 2+ to Mn 3+ by charge. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/asia.202201047 |
| الاتاحة: | http://dx.doi.org/10.1002/asia.202201047 https://onlinelibrary.wiley.com/doi/pdf/10.1002/asia.202201047 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/asia.202201047 |
| Rights: | http://creativecommons.org/licenses/by-nc/4.0/ |
| رقم الانضمام: | edsbas.65F7C5CF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/asia.202201047 |
|---|