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Lignin-Based Electrolytes for Aqueous Redox Flow Batteries

Chakraborty, Monalisa ; Battestini Vives, Mariona LU ; Abdelaziz, Omar Y. LU ; Henriksson, Gunnar ; Wreland Lindström, Rakel ; Hulteberg, Christian P. LU orcid and Khataee, Amirreza (2024) In ACS Sustainable Chemistry & Engineering 12(42). p.15409-15417
Abstract
Lignin is one of the most naturally occurring biopolymers on Earth and exists in a relatively large portion of the residual stream of the pulp and paper industry. Technical lignin is water-soluble, nontoxic, and rich in quinone-type groups; therefore, it could be a potential redox species for next-generation aqueous redox flow batteries (RFBs). Despite having attractive features, lignin does not show a reversible electrochemical behavior. Herein, we implemented a straightforward approach to modify the structure of soda-based lignin by oxidative depolymerization. The modified lignin showed good electrochemical activity through cyclic voltammetry with distinct redox peaks, which match lignin monomers, such as vanillin and acetovanillone. The... (More)
Lignin is one of the most naturally occurring biopolymers on Earth and exists in a relatively large portion of the residual stream of the pulp and paper industry. Technical lignin is water-soluble, nontoxic, and rich in quinone-type groups; therefore, it could be a potential redox species for next-generation aqueous redox flow batteries (RFBs). Despite having attractive features, lignin does not show a reversible electrochemical behavior. Herein, we implemented a straightforward approach to modify the structure of soda-based lignin by oxidative depolymerization. The modified lignin showed good electrochemical activity through cyclic voltammetry with distinct redox peaks, which match lignin monomers, such as vanillin and acetovanillone. The modified lignin was used as the negolyte of the RFB setup with potassium ferrocyanide as the counterpart. The RFB was cycled for over 200 cycles with an average Coulombic efficiency of 91%. In addition, the modified lignin electrolyte maintained the (electro)chemical properties even after four months of storage, as proven by RFB tests. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ACS Sustainable Chemistry & Engineering
volume
12
issue
42
pages
9 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85206454971
ISSN
2168-0485
DOI
10.1021/acssuschemeng.4c04227
language
English
LU publication?
yes
id
9b1a84d3-6b77-4c34-b63c-8aaed54f58eb
date added to LUP
2024-10-21 15:58:24
date last changed
2024-10-31 09:52:17
@article{9b1a84d3-6b77-4c34-b63c-8aaed54f58eb,
  abstract     = {{Lignin is one of the most naturally occurring biopolymers on Earth and exists in a relatively large portion of the residual stream of the pulp and paper industry. Technical lignin is water-soluble, nontoxic, and rich in quinone-type groups; therefore, it could be a potential redox species for next-generation aqueous redox flow batteries (RFBs). Despite having attractive features, lignin does not show a reversible electrochemical behavior. Herein, we implemented a straightforward approach to modify the structure of soda-based lignin by oxidative depolymerization. The modified lignin showed good electrochemical activity through cyclic voltammetry with distinct redox peaks, which match lignin monomers, such as vanillin and acetovanillone. The modified lignin was used as the negolyte of the RFB setup with potassium ferrocyanide as the counterpart. The RFB was cycled for over 200 cycles with an average Coulombic efficiency of 91%. In addition, the modified lignin electrolyte maintained the (electro)chemical properties even after four months of storage, as proven by RFB tests.}},
  author       = {{Chakraborty, Monalisa and Battestini Vives, Mariona and Abdelaziz, Omar Y. and Henriksson, Gunnar and Wreland Lindström, Rakel and Hulteberg, Christian P. and Khataee, Amirreza}},
  issn         = {{2168-0485}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{42}},
  pages        = {{15409--15417}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Sustainable Chemistry & Engineering}},
  title        = {{Lignin-Based Electrolytes for Aqueous Redox Flow Batteries}},
  url          = {{http://dx.doi.org/10.1021/acssuschemeng.4c04227}},
  doi          = {{10.1021/acssuschemeng.4c04227}},
  volume       = {{12}},
  year         = {{2024}},
}