Aqueous organic redox flow batteries using naphthoquinone and iodide maintaining pH of electrolytes desirably by adoption of carboxylic acid functionalized carbon nanotube catalyst

Park, Gyunho; Lee, Wonmi; Kwon, Yongchai

doi:10.1002/er.7386

Cited by 10 publications

(10 citation statements)

References 61 publications

(71 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Quinones are a series of carbonyl compounds that contain two carbonyl groups (−C=O) in one aromatic ring [33] . Its derivatives are one of the most frequently studied organic compounds in AORFBs, such as benzoquinone (BQ), [34–36] naphthoquinone (NQ), [37–40] and anthraquinone (AQ), [41–45] as shown in Figure 2. Both of the carbonyl groups store charges by an “ion‐coordination” mechanism in which the C=O groups are reduced to form oxygen anions that can pair with different cations (e. g., H + , Na + , Zn 2+ ) [46]…”

Section: Organic Molecules For Aorfbsmentioning

confidence: 99%

“…Quinones are a series of carbonyl compounds that contain two carbonyl groups (À C=O) in one aromatic ring. [33] Its derivatives are one of the most frequently studied organic compounds in AORFBs, such as benzoquinone (BQ), [34][35][36] naphthoquinone (NQ), [37][38][39][40] and anthraquinone (AQ), [41][42][43][44][45] as shown in Figure 2.…”

Section: Quinones Based Aorfbsmentioning

confidence: 99%

See 1 more Smart Citation

Molecular Engineering of Organic Species for Aqueous Redox Flow Batteries

Zhu

Guo

2022

Chemistry An Asian Journal

View full text Add to dashboard Cite

Redox flow batteries (RFBs) are promising candidates for large-scale energy storage systems (ESSs) due to their unique architecture that can decouple energy and power. Aqueous RFBs based on organic molecules (AORFBs) work with a non-flammable and intrinsically safe aqueous electrolyte, and organic compounds are performed as redox couples. The application of redox-active organics tremendously expands the development space of RFBs owing to the highly tunable molecule structure. Molecular engineering enables the exceptional merits in solubility, stability, and redox potential of different organic molecules. Herein, this review summarizes the application of molecular engineering to several organic compounds, focusing on the fundamental overview of their physicochemical properties and design strategies. We discuss the electrochemical merits and performances along with the intrinsic properties of the designed organic components. Finally, we outline the requirements for rational design of innovative organics to motivate more valuable research and present the prospect of molecule engineering used in AORFBs.

show abstract

Section: Organic Molecules For Aorfbsmentioning

confidence: 99%

Section: Quinones Based Aorfbsmentioning

confidence: 99%

Molecular Engineering of Organic Species for Aqueous Redox Flow Batteries

Zhu

Guo

2022

Chemistry An Asian Journal

View full text Add to dashboard Cite

show abstract

“…[18] As opposed to vanadium-based RFB systems, AORFBs employ electrolytes based on organic redox-active species from earth-abundant elements. [19] Among the most well-investigated compounds for AORFBs are quinones, which includes systems using anthraquinones, [20][21][22][23][24] benzoquinones, [5,25,26] and naphtoquinones, [27,28] viologens, [29][30][31][32] TEMPO-based (2,2,6,6tetramethylpiperidine-1-oxyl) organic radicals, [33][34][35][36] and ferrocenes, [6,37] as well as others. [38][39][40][41] The high interest in quinones as active materials in RFB electrolytes is based on both their ability to feature reversible two-electron redox reactions [42] and their structural diversity.…”

Section: Introductionmentioning

confidence: 99%

Demonstrating the Use of a Fungal Synthesized Quinone in a Redox Flow Battery

Wilhelmsen

Kristensen

Nolte

et al. 2022

Batteries & Supercaps

View full text Add to dashboard Cite

Aqueous organic redox flow batteries (AORFBs) have gained increased interest as a promising solution to store energy from sustainable energy sources. Inspired by naturally occurring bioquinones, we here propose a new electrolyte based on the fungal compound phoenicin. Phoenicin was produced using the filamentous fungus Penicillium atrosanguineum at a concentration of 1.24 g L À 1 liquid medium and extracted using ethyl acetate to a purity exceeding 95 %. The fungus may provide a benefit of high scalability of the biosynthesis-based production of the electroactive substance. Here, we demonstrate the performance of biologically produced phoenicin as a negative electrolyte in an RFB against ferro/ferricyanide, as a proof of concept, giving an initial capacity of 11.75 Ah L À 1 and a capacity decay of 2.85 % day À 1 . For a deeper investigation of the battery setup, in situ attenuated total reflection infrared (ATR-IR) spectra of the phoenicin electrolyte were recorded. Symmetric cell cycling was performed to study the stability of this bio-based active material.

show abstract

“…Aqueous redox flow batteries (ARFBs) have become one of promising candidates for energy storage systems because these could offer the benefits like large capacity and long cycle life. [1][2][3][4][5] In the ARFBs, energy is chemically stored by redox reactions of two liquid electrolytes containing active material and supporting electrolyte, while they are separated by ion exchange membrane. [6][7][8][9][10][11] Regarding the supporting electrolyte included in electrolyte, instead of pure water, acidic or alkaline supporting electrolytes are regarded to increase ion conductivity facilitating charge transfer.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Redox flow batteries using cerium salts and anthraquinone‐2,7‐disulfonic acid as new redox couple dissolved in mixture solution of methanesulfonic and perchloric acids

Permatasari

Lee

Kwon

2022

Intl J of Energy Research

Self Cite

View full text Add to dashboard Cite

Summary Aqueous redox flow batteries (ARFBs) using acidic supporting electrolytes are one of promising future batteries because the acidic supporting electrolytes can increase the solubility of active materials and their ionic conductivity, followed by energy density and efficiencies of ARFBs using these. Nevertheless, discovering proper redox couple with a high open circuit voltage (OCV) in acidic media is still challengeable because a low OCV is a main drawback of the conventional redox couples dissolved in acidic media. To increase OCV without sacrificing the solubility of active materials, a new redox couple consisting of cerium salts and anthraquinone‐2,7‐disulfonic acid (AQDS) that are dispersed in methanesulfonic acid (MSA) is suggested. With cerium salts and AQDS dissolved in acidic MSA, a high OCV of 1.45 V is achieved, while MSA affects the increases in solubility and stability of cerium salts. To further increase the solubility of AQDS and facilitate its redox reactivity, the mixture of MSA and perchloric acid (HClO4) is used as supporting electrolyte. Based on that, the solubility of AQDS is improved from 0.35 to 0.5 M, while ARFB using 1 M cerium ions and 0.5 M AQDS dissolved in the mixture solution of 4 M MSA and 1 M HClO4, shows excellent performances such as discharge capacity of 20.3 Ah L−1, energy efficiency of 86.5%, and capacity retention of ~99% over 100 cycles.

show abstract

Aqueous organic redox flow batteries using naphthoquinone and iodide maintaining pH of electrolytes desirably by adoption of carboxylic acid functionalized carbon nanotube catalyst

Cited by 10 publications

References 61 publications

Molecular Engineering of Organic Species for Aqueous Redox Flow Batteries

Molecular Engineering of Organic Species for Aqueous Redox Flow Batteries

Demonstrating the Use of a Fungal Synthesized Quinone in a Redox Flow Battery

Redox flow batteries using cerium salts and anthraquinone‐2,7‐disulfonic acid as new redox couple dissolved in mixture solution of methanesulfonic and perchloric acids

Contact Info

Product

Resources

About