BookR: School of Health Core Facilities Booking
PubMed Publications| Keyword search (4,163 papers available) |  |
"Jónsson E" Authored Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | In situ electrochemical recomposition of decomposed redox-active species in aqueous organic flow batteries | Jing Y; Zhao EW; Goulet MA; Bahari M; Fell EM; Jin S; Davoodi A; Jónsson E; Wu M; Grey CP; Gordon RG; Aziz MJ; | 35710986 ENCS |
| Title: | In situ electrochemical recomposition of decomposed redox-active species in aqueous organic flow batteries | ||||
| Authors: | Jing Y, Zhao EW, Goulet MA, Bahari M, Fell EM, Jin S, Davoodi A, Jónsson E, Wu M, Grey CP, Gordon RG, Aziz MJ | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/35710986/ | ||||
| DOI: | 10.1038/s41557-022-00967-4 | ||||
| Publication: | Nature chemistry | ||||
| Keywords: | |||||
| PMID: | 35710986 | Category: | Date Added: | 2022-06-17 | |
| Dept Affiliation: |
ENCS
1 Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA. 2 Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK. 3 Magnetic Resonance Research Center, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, the Netherlands. 4 John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. 5 Department of Chemical and Materials Engineering, Concordia University, Montreal, Quebec, Canada. 6 Materials and Metallurgical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran. 7 Sichuan University-Pittsburgh Institute, Sichuan University, Chengdu, China. 8 Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK. cpg27@cam.ac.uk. 9 Department of Chemistry and Chemical |
||||
Description: |
Aqueous organic redox flow batteries offer a safe and potentially inexpensive solution to the problem of storing massive amounts of electricity produced from intermittent renewables. However, molecular decomposition represents a major barrier to commercialization-and although structural modifications can improve stability, it comes at the expense of synthetic cost and molecular weight. Now, utilizing 2,6-dihydroxy-anthraquinone (DHAQ) without further structural modification, we demonstrate that the regeneration of the original molecule after decomposition represents a viable route to achieve low-cost, long-lifetime aqueous organic redox flow batteries. We used in situ (online) NMR and electron paramagnetic resonance, and complementary electrochemical analyses to show that the decomposition compound 2,6-dihydroxy-anthrone (DHA) and its tautomer, 2,6-dihydroxy-anthranol (DHAL) can be recomposed to DHAQ electrochemically through two steps: oxidation of DHA(L)2- to the dimer (DHA)24- by one-electron transfer followed by oxidation of (DHA)24- to DHAQ2- by three-electron transfer per DHAQ molecule. This electrochemical regeneration process also rejuvenates the positive electrolyte-rebalancing the states of charge of both electrolytes without introducing extra ions. |
