Facile preparation of an oxygen-functionalized carbon felt electrode to improve VO2+/VO2+ redox chemistry in vanadium redox flow batteries

Kwon, Sang Mo; Suharto, Yustian; Kim, Ki Jae

doi:10.1016/j.jiec.2021.03.049

Cited by 14 publications

(16 citation statements)

References 22 publications

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“…[145] The chemical treatment method capable to achieve outstanding energy efficiency of 75 % at a current density of 100 mAcm À 2 . [56] While Lv et al [147] found excellent discharge capacity of 350 mAh at 250 mAcm À 2 and EE 79.2 % by using carbon nanonetwork wrapped graphite felt electrodes in VRFBs.…”

Section: Carbon Feltmentioning

confidence: 99%

“…Table 3 shows the previous studies on the effectiveness of CF electrodes in VRFB with different types of catalysts. One such advancement is electrode surface treatment, which involves attacking the C=C or CÀ H bonds in CF using BPO to generate free radicals, as demonstrated by Kwon et al [56] The resulting BPO-treated CF electrode showed a remarkable EE of 75 % at a current density of 100 mAcm À 2 , outperforming the pure CF electrode in the VO 2 + /VO 2 + redox process. N-doping in carbon-based materials can enhance VRFB performance by forming ion adsorption sites.…”

Section: Carbon Feltmentioning

confidence: 99%

See 1 more Smart Citation

Evolution of Vanadium Redox Flow Battery in Electrode

Hossain

Abdullah

Tan

et al. 2023

The Chemical Record

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The vanadium redox flow battery (VRFB) is a highly regarded technology for large‐scale energy storage due to its outstanding features, such as scalability, efficiency, long lifespan, and site independence. This paper provides a comprehensive analysis of its performance in carbon‐based electrodes, along with a comprehensive review of the system‘s principles and mechanisms. It discusses potential applications, recent industrial involvement, and economic factors associated with VRFB technology. The study also covers the latest advancements in VRFB electrodes, including electrode surface modification and electrocatalyst materials, and highlights their effects on the VRFB system‘s performance. Additionally, the potential of two‐dimensional material MXene to enhance electrode performance is evaluated, and the author concludes that MXenes offer significant advantages for use in high‐power VRFB at a low cost. Finally, the paper reviews the challenges and future development of VRFB technology.

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Section: Carbon Feltmentioning

confidence: 99%

Section: Carbon Feltmentioning

confidence: 99%

Evolution of Vanadium Redox Flow Battery in Electrode

Hossain

Abdullah

Tan

et al. 2023

The Chemical Record

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“…Yadav et al proposed a preparation method of electrospinning with fibers possessing a ribbon-like cross-sectional shape to manufacture electrodes, studied various physical and transmission characteristics of the electrode, and compared it with Freudenberg H23 carbon paper; the results show that the ribbon-based electrode had better performance and power density. Kwon et al applied benzoyl peroxide (BPO) to a VRFB with a carbon felt electrode and demonstrated an excellent 75% EE at a current density of 100 mA cm –2 , suggesting that BPO has a strong electrocatalytic effect on the surface.…”

Section: Key Component Materialsmentioning

confidence: 99%

Comprehensive Analysis of Critical Issues in All-Vanadium Redox Flow Battery

Huang

et al. 2022

ACS Sustainable Chem. Eng.

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Vanadium redox flow batteries (VRFBs) can effectively solve the intermittent renewable energy issues and gradually become the most attractive candidate for large-scale stationary energy storage. However, their low energy density and high cost still bring challenges to the widespread use of VRFBs. For this reason, performance improvement and cost reduction of VRFBs are the keys to their commercialization and large-scale energy storage applications. On the basis of this, this perspective briefly describes the development status of renewable energy and energy storage technology and summarizes the existing bottlenecks that affect the development of VRFBs. Meanwhile, the critical technologies of VRFBs are reviewed, and the research progress in recent years and the challenges that need to be overcome are introduced. This perspective focuses on four aspects, including core component material, system modeling, optimization operations, and future business challenges. Then, a comprehensive analysis of critical issues and solutions for VRFB development are discussed, which can effectively guide battery performance optimization and innovation. The views in this perspective are expected to provide effective and extensive understanding of the current research and future development of vanadium redox flow batteries.

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“…[ 44 , 45 ]. Recently, incorporation of oxygen-containing functional groups on carbon-based electrodes has gained popularity due to its extraordinary ability to improve the catalytic activity, surface area and electrochemical properties of CC [ 46 , 47 ]. Dangling bonds and structural flaws are added to the carbon structure by oxygen functional groups.…”

Section: Introductionmentioning

confidence: 99%

“…The enhanced hydrophilicity of electrodes in polar solvents, as a result, improves the biocatalytic activity by increasing the electron transfer between microbes and anodes [ 48 ]. Oxygen functional groups can be incorporated by treating CC with compounds like nitric acid [ 46 ], potassium ferrate [ 45 ], benzoyl peroxide [ 47 ], etc. However, these processes require multiple levels of treatment that include strong acids and/or noble metals.…”

Section: Introductionmentioning

confidence: 99%