SiO2-decorated graphite felt electrode by silicic acid etching for iron-chromium redox flow battery

Chen, Na; Zhang, Huan; Luo, Xudong; Sun, Chuanyu

doi:10.1016/j.electacta.2020.135646

Cited by 41 publications

(28 citation statements)

References 53 publications

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“…Carbon is a significant component used in electrochemical applications, such as batteries, supercapacitors, photoelectrochemical water splitting, solar cells, fuel cells, sensors, etc. The advanced large-scale energy storage devices, redox flow cells, are also reliant on carbon-based electrodes [1,2]. Initially, lithium-ion battery research was focused on positive and negative electrodes, wherein the negative electrodes commonly investigated were based on Li metal and lithium alloys [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Graphene: Chemistry and Applications for Lithium-Ion Batteries

et al. 2022

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In the present era, different allotropes of carbon have been discovered, and graphene is the one among them that has contributed to many breakthroughs in research. It has been considered a promising candidate in the research and academic fields, as well as in industries, over the last decade. It has many properties to be explored, such as an enhanced specific surface area and beneficial thermal and electrical conductivities. Graphene is arranged as a 2D structure by organizing sp2 hybridized C with alternative single and double bonds, providing an extended conjugation combining hexagonal ring structures to form a honeycomb structure. The precious structure and outstanding characteristics are the major reason that modern industry relies heavily on graphene, and it is predominantly applied in electronic devices. Nowadays, lithium-ion batteries (LIBs) foremostly utilize graphene as an anode or a cathode, and are combined with polymers to use them as polymer electrolytes. After three decades of commercialization of the lithium-ion battery, it still leads in consumer electronic society due to its higher energy density, wider operating voltages, low self-discharge, noble high-temperature performance, and fewer maintenance requirements. In this review, we aim to give a brief review of the domination of graphene and its applications in LIBs.

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Section: Introductionmentioning

confidence: 99%

Graphene: Chemistry and Applications for Lithium-Ion Batteries

et al. 2022

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“…Considering that in practical applications, the process of adding catalyst should follow the principle of convenience and low cost, Chen et al employed silicic acid impregnated GF to introduce SiO 2 as the catalyst during the heat treatment process. [40] Under the action of hot air, silicic acid etches the GF and leaves holes, which increases the effective specific surface area of the felt and provides more reactive sites. Concurrently, the SiO 2 formed by the thermal decomposition of silicic acid not only hinders the further oxidation and etching of GF by hot air, but also has electrocatalytic activity.…”

Section: Catalystsmentioning

confidence: 99%

Review of the Development of First‐Generation Redox Flow Batteries: Iron‐Chromium System

2021

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The iron-chromium redox flow battery (ICRFB) is considered the first true RFB and utilizes low-cost, abundant iron and chromium chlorides as redox-active materials, making it one of the most cost-effective energy storage systems. ICRFBs were pioneered and studied extensively by NASA and Mitsui in Japan in the 1970-1980s, and extensive studies on ICRFBs have been carried out over the past few decades. In addition, ICRFB is considered to be one of the most promising directions for costeffective and large-scale energy storage applications, as its cost can theoretically be lower than that of zinc-bromine and all-vanadium RFBs, giving it the potential for large-scale promotion. With the resolution of problems such as hydrogen evolution and electrolyte intermixing, the ICRFB technology is moving out of the laboratory and striving for greater power and more stable industrialization requirements. This Review summarizes the history, development, and research status of key components (carbon-based electrode, electrolyte, and membranes) in the ICRFB system, aiming to give a brief guide to researchers who are involved in the related subject.

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“…However, for many applications, a cost-effective approach to mass manufacturing is necessary. Pt catalysts on catalytically graphitized CNF performed exceptionally well in terms of ORR activity and durability [75]. Different forms of Pt catalysts such as Pt/CNF, Pt/GCF-HT, and Pt/GCF-(Co) were thoroughly investigated towards ORR.…”

Section: Carbon Nanofiber-based Electrode Materialsmentioning

confidence: 99%

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

et al. 2022

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Carbon-based nanocomposites have developed as the most promising and emerging materials in nanoscience and technology during the last several years. They are microscopic materials that range in size from 1 to 100 nanometers. They may be distinguished from bulk materials by their size, shape, increased surface-to-volume ratio, and unique physical and chemical characteristics. Carbon nanocomposite matrixes are often created by combining more than two distinct solid phase types. The nanocomposites that were constructed exhibit unique properties, such as significantly enhanced toughness, mechanical strength, and thermal/electrochemical conductivity. As a result of these advantages, nanocomposites have been used in a variety of applications, including catalysts, electrochemical sensors, biosensors, and energy storage devices, among others. This study focuses on the usage of several forms of carbon nanomaterials, such as carbon aerogels, carbon nanofibers, graphene, carbon nanotubes, and fullerenes, in the development of hydrogen fuel cells. These fuel cells have been successfully employed in numerous commercial sectors in recent years, notably in the car industry, due to their cost-effectiveness, eco-friendliness, and long-cyclic durability. Further; we discuss the principles, reaction mechanisms, and cyclic stability of the fuel cells and also new strategies and future challenges related to the development of viable fuel cells.

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SiO2-decorated graphite felt electrode by silicic acid etching for iron-chromium redox flow battery

Cited by 41 publications

References 53 publications

Graphene: Chemistry and Applications for Lithium-Ion Batteries

Graphene: Chemistry and Applications for Lithium-Ion Batteries

Review of the Development of First‐Generation Redox Flow Batteries: Iron‐Chromium System

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

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