Bermuda grass derived nitrogen-doped carbon as electrocatalyst in graphite felt electrode to increase the efficiency of all‑iron redox flow batteries

Anarghya, D.; Anantha, M.S.; Venkatesh, Krishna; Santosh, M.S.; Priya, M. Geetha; Muralidhara, H.B.

doi:10.1016/j.jelechem.2020.114577

Cited by 28 publications

(17 citation statements)

References 21 publications

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“…[48,[78][79][80][81][82][83][84] Many studies have been reported by using BDC as an important part of batteries. [50][51][52][53][54][55][56][57][58][59][60] To better understand the research progress of BDC, we summarized the performance improvement diagrams of BDC-based materials in LIBs (Figure 1b), [79,80,[85][86][87][88][89][90][91][92][93][94][95] SIBs (Figure 1c) [8,81,[96][97][98][99][100][101][102][103] and KIBs (Figure 1d) [104][105][106][107][108]…”

Section: Introductionmentioning

confidence: 99%

Biomass‐Derived Carbon for High‐Performance Batteries: From Structure to Properties

Sun

Shi

Yang

et al. 2022

Adv Funct Materials

126

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Owing to the sustainability, environmental friendliness, and structural diversity of biomass-derived materials, extensive efforts have been devoted to use them as energy storage materials in high-energy rechargeable batteries. A timely and comprehensive review from the structures to mechanisms will significantly widen this research field. Here, it starts with the operation mechanism of batteries, and it aims to summarize the latest advances for biomass-derived carbon to achieve high-energy battery materials, including activation carbon methods and the structural classification of biomass-derived carbon materials from zero dimension, one dimension, two dimension, and three dimension. Each strategy starts with carefully selected examples and then moves to illustrate the underlying transport mechanism of electrons in the structure. In the end, challenges, strategies, and outlooks are pointed out for the future development of biomass-derived carbon materials. Overall, this review will help researchers choose appropriate strategies to design biomass-derived carbon materials, thereby promoting the application of biomass materials in battery design.

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Section: Introductionmentioning

confidence: 99%

Biomass‐Derived Carbon for High‐Performance Batteries: From Structure to Properties

Sun

Shi

Yang

et al. 2022

Adv Funct Materials

126

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“…According to the literature, carbon-based electrodes are the majorly used in the field of redox flow batteries because of their low cost, high stability, corrosion resistance, and high conductivity. But, these are poor in kinetic reversibility and electrochemical activity [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Hence it is essential to modify with electrochemically active substances such as metal-oxides, activated carbons, carbon nanotubes, graphene oxide or metal-carbon composites, etc. to increase the electrochemically active sites on the electrode surface [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…Studies reported in the field of energy storage consider carbon spheres as a promising material/catalyst because of their high surface area, chemical stability, and cost-effectiveness [20][21][22][23]. It has explained in the literature that, N-doped carbon materials facilitate the formation of defects sites on the electrode surface which helps in the electrolyte absorption and hence increases the wettability of the electrode [17,18,[24][25][26]. Also, these are described to exhibit greater electrocatalytic property in many electrochemical devices.…”

Section: Introductionmentioning

confidence: 99%

“…The recent studies carried out for the electrode modification in IRFB using nitrogen-doped carbon particles and metal oxide composite reported good cycle life and kinetic reversibility towards Fe 3+ /Fe 2+ reaction using ascorbic acid and glycine as the ligand respectively [18,19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nitrogen-doped carbon spheres-decorated graphite felt as a high-performance electrode for Fe based redox flow batteries

Dinesh

Anantha

Santosh³

et al. 2021

Diamond and Related Materials

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In this paper, the performance of Fe based redox flow batteries (IRFBs) was dramatically improved by coating N-doped carbon spheres (NDCS) on the graphite felt electrodes. NDCS was synthesized by the single-step hydrothermal method using dextrose and ammonia as a precursor and coated over a graphite felt electrode by electrostatic spraying. The weight of NDCS required for the modification of the electrode to achieve the effective performance of the battery was studied using electrochemical techniques. Cyclic voltammetry (CV) and potentiodynamic polarization study was used to evaluate the kinetic reversibility and linear polarization resistance offered by the electrode towards electrolyte. The characterizing features of the NDCS, untreated graphite felt (UGF) electrode, and optimized modified graphite felt (MGF) electrode were analyzed using SEM, EDAX, XRD, and Raman spectroscopy. The charge-discharge studies were performed for the 132 cm 2 IRFB using a 2 mg/cm 2 MGF electrode as a positive electrode by varying the current densities from 20 to 60 mA/cm 2 . The cell resulted in an average coulombic efficiency (CE) of 93%, voltaic efficiency (VE) of 72%, and energy efficiency (EE) of 68% for 15 cycles at the current density of 30 mA/cm 2 . The improvement in the performance of the IRFB is due to the presence of electrochemically active nitrogen-bearing carbon catalysts. In this paper, the pioneering effort has been made to improve the efficiency of the IRFB with an active area of 132 cm 2 using glycine as the ligand.

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A Double‐ligand Chelating Strategy to Iron Complex Anolytes with Ultrahigh Cyclability for Aqueous Iron Flow Batteries

Wang,

Ma,

Niu

et al. 2024

Angewandte Chemie

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Aqueous all‐iron flow batteries (AIFBs) are attractive for large‐scale and long‐term energy storage due to their extremely low cost and safety features. To accelerate commercial application, a long cyclable and reversible iron anolyte is expected to address the critical barriers, namely iron dendrite growth and hydrogen evolution reaction (HER). Herein, we report a robust iron complex with triethanolamine (TEA) and 2‐methylimidazole (MM) double ligands. By introducing two ligands into one iron center, the binding energy of the complex increases, making it more stable in the charge‐discharge reactions. The Fe(TEA)MM complex achieves reversible and stable redox between Fe3+ and Fe2+, without metallic iron growth and HER. AIFBs based on this anolyte perform a high energy efficiency of 80.5% at 80 mA cm‐2 and exhibit a record durability among reported AIFBs. The efficiency and capacity retain nearly 100% after 1,400 cycles. The capital cost of this AIFB is $33.2 kWh‐1 (e.g., 20 h duration), cheaper than Li‐ion battery and vanadium flow battery. This double‐ligand chelating strategy not only solves the current problems faced by AIFBs, but also provides an insight for further improving the cycling stability of other flow batteries.

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Bermuda grass derived nitrogen-doped carbon as electrocatalyst in graphite felt electrode to increase the efficiency of all‑iron redox flow batteries

Cited by 28 publications

References 21 publications

Biomass‐Derived Carbon for High‐Performance Batteries: From Structure to Properties

Biomass‐Derived Carbon for High‐Performance Batteries: From Structure to Properties

Nitrogen-doped carbon spheres-decorated graphite felt as a high-performance electrode for Fe based redox flow batteries

A Double‐ligand Chelating Strategy to Iron Complex Anolytes with Ultrahigh Cyclability for Aqueous Iron Flow Batteries

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