Cited by 279Advanced battery technologies researchAdvancements in Battery MaterialsElectrocatalysts for Energy Conversion

Reversible ketone hydrogenation and dehydrogenation for aqueous organic redox flow batteries

Feng, Ruozhu, Zhang, Xin, Murugesan, Vijayakumar, Hollas, Aaron, Chen, Ying, Shao, Yuyan, Walter, Eric, Wellala, Nadeesha P. N. +3 more·2021·Science

Abstract

Aqueous redox flow batteries with organic active materials offer an environmentally benign, tunable, and safe route to large-scale energy storage. Development has been limited to a small palette of organics that are aqueous soluble and tend to display the necessary redox reversibility within the water stability window. We show how molecular engineering of fluorenone enables the alcohol electro-oxidation needed for reversible ketone hydrogenation and dehydrogenation at room temperature without the use of a catalyst. Flow batteries based on these fluorenone derivative anolytes operate efficiently and exhibit stable long-term cycling at ambient and mildly increased temperatures in a nondemanding environment. These results expand the palette to include reversible ketone to alcohol conversion but also suggest the potential for identifying other atypical organic redox couple candidates.

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Registry

Crossref · 10.1126/science.abd9795

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43 of 43 references verified0 citation errors · 0 not checkable

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  • Flow batteries are well suited for large-scale energy storage because they have high safety, high efficiency, and flexibility.

    “flow batteries are well suited for large-scale energy storage applications because they have high safety, high efficiency, and flexibility.102”

    From Technologies and perspectives for achieving carbon neutrality (2021) · cites this paper as [102]

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Authors
Feng, R., Zhang, X., Murugesan, V., Hollas, A., Chen, Y., Shao, Y., Walter, E., Wellala, N. P. N., Yan, L., Rosso, K. M., & Wang, W.
Affiliations
  • Pacific Northwest National Laboratory (US)
  • Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99354, USA.
Venue
Science
Published
2021-05-21
Volume
372
Issue
6544
Pages
836-840
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3161746307
Cited by
279
References
43
Citations by year
2026: 44 · 2025: 59 · 2024: 49 · 2023: 56 · 2022: 52 · 2021: 19
FWCI
12.94
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. DOE Office of Electricity Energy Storage Program (57558)
  • Pacific Northwest National Laboratory Laboratory Directed Research and Development Energy Storage Materials Initiative
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced battery technologies research
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Battery Materials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
Keywords
aqueous redox flow batteries, organic redox couples, ketone hydrogenation, fluorenone derivatives, alcohol electrooxidation, energy storage

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