Development of reduced graphene oxide from biowaste as an electrode material for vanadium redox flow battery

Abbas, Ali; Eng, Xue Er; Ee, Nicholas; Saleem, Faisal; Wu, Dan; Chen, Wenqian; Handayani, Murni; Tabish, Tanveer A.; Wai, Nyunt; Lim, Tuti Mariana

doi:10.1016/j.est.2021.102848

Cited by 46 publications

(21 citation statements)

References 61 publications

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“…[64] Abbas et al synthesized rGO from spent coffee beans, and in a static VRFB cell, reported an energy efficiency of 94% at a current density of 25 mA cm −2 . [43] Overall, the results presented here appear comparable to those reported in prior literature. Among potential sources of concern with the stability of the flow deposition technique over longer durations of cell operation are whether the electrocatalysts remain adhered to the fiber scaffold surface and resist fouling, both of which would reduce the cell performance.…”

Section: Evaluation Of Rgo In a Single Vrfb Cellsupporting

confidence: 90%

“…However, increased product yields are realized at the expense of quality, thus motivating research efforts to improve the morphology and surface chemistry of rGO material through optimization of the agents and process step conditions in the synthesis route. [20,[40][41][42][43] Towards electrochemical applications, high surface area graphene has been demonstrated to promote ionic adsorption and to improve the electrode performance for VRFBs, oxygen evolution from water, and remediation of environmental pollutants. [6,[44][45] A growing body of work has focused on leveraging the properties of graphene-based materials in RFBs, [20,46] investigating various elemental dopings [32,[47][48] and porous structures, [49][50] in combination with different cell chemistries (i.e., all-iron [51] and all-vanadium [12] ).…”

Section: Introductionmentioning

confidence: 99%

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Exploration of reduced graphene oxide microparticles as electrocatalytic materials in vanadium redox flow batteries

Alazmi¹,

Wan²,

Costa³

et al. 2022

Journal of Energy Storage

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Section: Evaluation Of Rgo In a Single Vrfb Cellsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Exploration of reduced graphene oxide microparticles as electrocatalytic materials in vanadium redox flow batteries

Alazmi¹,

Wan²,

Costa³

et al. 2022

Journal of Energy Storage

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“…Finally, to produce rGO, the suspension was filtered and dried in a 60 °C oven. Because of its consistent performance and efficiency, biomass-derived rGO has the potential to be a low-cost alternative to commercialized graphite as an electrode component for VRB. , Table has a brief summary and comparison of the synthesis of graphene and its variants via biowaste along with their applications in different arenas in electric applications, sensors, biosensors, batteries, cells, the biomedical field, etc. via different techniques.…”

Section: Graphene From Biowastesmentioning

confidence: 99%

Sustainable Approach for Developing Graphene-Based Materials from Natural Resources and Biowastes for Electronic Applications

Jindal

Anand

Sharma

et al. 2022

ACS Appl. Electron. Mater.

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Graphene, attributable to its exceptional electrical, chemical, physical, mechanical, thermal, structural, and optical characteristics, has evolved into a remarkable and revolutionary substance with which scientists are tinkering and molding its various forms. Currently, as greener resources are more approachable, for environmental and human health reasons, researchers are now employing diverse forms of natural resources, such as plant resources (flowers, wood, leaves, etc.), edibles (fruits, vegetables, cookies, chocolate, coffee, tea, etc.), biowaste, or any other kind of natural resources, by using different methods for their synthesis, such as the hydrothermal method, chemical vapor deposition, thermal exfoliation, freeze-drying, and so on, for framing different forms of graphene or its hybrids or even for the synthesis of graphene itself. In this review, we highlight several natural resources along with the biowaste materials to fabricate widely approachable graphenes which can also be transformed into different forms to make them more environmentally protected. We included here the safer synthetic processes, as well as many sectors where graphene and its various forms have intriguing potential. Future graphene research is anticipating new paths as the demand for the protection of the environment and sustainable alternatives is increasing.

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“…Another very popular source of biomass-waste carbon is spent coffee grounds and have been the focus of several reviews [58][59][60]. rGO derived from spent coffee grounds has been reported as electrode material for RFBs [61]. The coffee grounds were washed and dried, then were carbonized at 850 • C in nitrogen for 2 (rGO-2) or 3 h (rGO-3), chemically activated via modified Hummer's method to prepare GO [62], then reduced by hydrazine monohydrate reduction to produce rGO [63], obtaining BET surface areas of 72 m 2 g −1 for both rGO-2 and rGO-3.…”

Section: Boosting Activity Of Carbon Felts Via Decoration With Biomas...mentioning

confidence: 99%

Sustainable electrodes for the next generation of redox flow batteries

2022

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The development of alternative energy storage technologies is key to advance renewable energy resources. Among them, redox flow batteries (RFBs) have been identified to be one of the most promising technologies in the field of stationary batteries. The carbon-based electrodes in these batteries are a crucial component and play an important part in achieving high efficiency and performance. A further leap into this direction is the design of fossil-free materials by incorporating sustainable alternative resources as the carbon component in the processing of the electrodes. The use of biomass as carbon precursor for electrode applications has also been a focus of research for other energy storage devices and in the case of RFBs, it has become an emergent topic in recent years. This short review presents the recent advances in the design of biomass-derived carbon materials as electrodes in RFBs, strategies to enhance their electrocatalytic properties, challenges, and future outlook in the design of sustainable electrode materials.

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Development of reduced graphene oxide from biowaste as an electrode material for vanadium redox flow battery

Cited by 46 publications

References 61 publications

Exploration of reduced graphene oxide microparticles as electrocatalytic materials in vanadium redox flow batteries

Exploration of reduced graphene oxide microparticles as electrocatalytic materials in vanadium redox flow batteries

Sustainable Approach for Developing Graphene-Based Materials from Natural Resources and Biowastes for Electronic Applications

Sustainable electrodes for the next generation of redox flow batteries

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