Titanium Nitride Nanorods Array-Decorated Graphite Felt as Highly Efficient Negative Electrode for Iron-Chromium Redox Flow Battery.

Iron-chromium redox flow batteries have attracted widespread attention because of their low cost. However, the performance of these batteries is still lower than that of vanadium redox flow batteries due to the poor electrochemical activity of Cr3+ /Cr2+ redox couples on graphite felt electrodes. Herein, binder-free TiN nanorods array-decorated 3D graphite felt composite electrode-is demonstrated. The dendrite-like TiN nanorods array increases the specific surface area of the electrode. The nitrogen and oxygen elements on the surface provide more adsorption sites and electrochemically active sites for Cr3+ /Cr2+ . The contact resistance of the composite electrode is effectively reduced and its homogeneity and stability are improved by avoiding the use of a binder and mixing process. A battery prepared using the TiN nanorods array-decorated 3D graphite felt electrode has enabled the maximum power density to be 427 mW·cm-2 , which is 74.0% higher than a battery assembled with TiN nanoparticles bonded to graphite felt. At a current density of 80 mA·cm-2 , the TiN nanorods battery exhibits the highest coulombic efficiency of 93.0%, voltage efficiency of 90.4%, and energy efficiency of 84.1%. Moreover, the battery efficiency and composite electrode structure remains stable during a redox flow battery cycle test.

[1]  T. Zhao,et al.  An Electrolyte with Elevated Average Valence for Suppressing the Capacity Decay of Vanadium Redox Flow Batteries , 2022, ACS central science.

[2]  Shuai Zhao,et al.  Improved performance of iron-chromium flow batteries using SnO2-coated graphite felt electrodes , 2022, Ceramics International.

[3]  Chuanwei Yan,et al.  Advanced dual-gradient carbon nanofibers/graphite felt composite electrode for the next-generation vanadium flow battery , 2022, Journal of Materials Science & Technology.

[4]  Yiyang Liu,et al.  Polyoxometalate-based electrolyte materials in redox flow batteries: Current trends and emerging opportunities , 2022, Materials Reports: Energy.

[5]  M. Ye,et al.  Capacitive Heavy Metal Ion Removal of 3D Self-Supported Nitrogen-Doped Carbon-Encapsulated Titanium Nitride Nanorods via the Synergy of Faradic-Reaction and Electro-Adsorption , 2022, Chemical Engineering Journal.

[6]  Chuanyu Sun,et al.  A review of the development of the first-generation redox flow battery : iron chromium system. , 2021, ChemSusChem.

[7]  Yuyan Shao,et al.  Reversible ketone hydrogenation and dehydrogenation for aqueous organic redox flow batteries , 2021, Science.

[8]  Jianguo Liu,et al.  Excellent stability and electrochemical performance of the electrolyte with indium ion for iron–chromium flow battery , 2021 .

[9]  J. Choi,et al.  High-Performance Bifunctional Electrocatalyst for Iron-Chromium Redox Flow Batteries , 2020 .

[10]  Yuesong Shen,et al.  TiN nanoparticles hybridized with Fe, N co-doped carbon nanosheets composites as highly efficient electrocatalyst for oxygen reduction reaction , 2020 .

[11]  K. Venkatesh,et al.  Improved performance of iron-based redox flow batteries using WO3 nanoparticles decorated graphite felt electrode , 2020 .

[12]  Michael P. Marshak,et al.  Effect of Chelation on Iron–Chromium Redox Flow Batteries , 2020 .

[13]  Huang Zhang,et al.  SiO2-decorated graphite felt electrode by silicic acid etching for iron-chromium redox flow battery , 2020 .

[14]  Huang Zhang,et al.  Investigations on physicochemical properties and electrochemical performance of graphite felt and carbon felt for iron‐chromium redox flow battery , 2020, International Journal of Energy Research.

[15]  Huamin Zhang,et al.  A TiN Nanorod Array 3D Hierarchical Composite Electrode for Ultrahigh‐Power‐Density Bromine‐Based Flow Batteries , 2019, Advanced materials.

[16]  Huang Zhang,et al.  Investigation of Nafion series membranes on the performance of iron‐chromium redox flow battery , 2019, International Journal of Energy Research.

[17]  Huang Zhang,et al.  A comparative study of Nafion and sulfonated poly(ether ether ketone) membrane performance for iron-chromium redox flow battery , 2019, Ionics.

[18]  Yi Tan,et al.  Polarization Effects of a Rayon and Polyacrylonitrile Based Graphite Felt for Iron‐Chromium Redox Flow Batteries , 2019, ChemElectroChem.

[19]  Feng Li,et al.  A gradient bi-functional graphene-based modified electrode for vanadium redox flow batteries , 2018, Energy Storage Materials.

[20]  Yiyang Liu,et al.  The effect of Nafion membrane thickness on performance of all tungsten-cobalt heteropoly acid redox flow battery , 2018, Journal of Power Sources.

[21]  Yiyang Liu,et al.  Enhanced electrochemical activity of carbon felt for V2+/V3+ redox reaction via combining KOH-etched pretreatment with uniform deposition of Bi nanoparticles , 2017 .

[22]  Yiyang Liu,et al.  An Aqueous Redox Flow Battery with a Tungsten–Cobalt Heteropolyacid as the Electrolyte for both the Anode and Cathode , 2017 .

[23]  L. Zeng,et al.  Highly catalytic and stabilized titanium nitride nanowire array-decorated graphite felt electrodes for all vanadium redox flow batteries , 2017 .

[24]  Xuelong Zhou,et al.  The effects of design parameters on the charge-discharge performance of iron-chromium redox flow batteries , 2016 .

[25]  Xiaohui Yan,et al.  Performance enhancement of iron-chromium redox flow batteries by employing interdigitated flow fields , 2016 .

[26]  Xuelong Zhou,et al.  A high-performance flow-field structured iron-chromium redox flow battery , 2016 .

[27]  Xuelong Zhou,et al.  A comparative study of all-vanadium and iron-chromium redox flow batteries for large-scale energy storage , 2015 .

[28]  Yiyang Liu,et al.  Titanium nitride as an electrocatalyst for V(II)/V(III) redox couples in all-vanadium redox flow batteries , 2015 .

[29]  Bin Li,et al.  Cost and performance model for redox flow batteries , 2014 .

[30]  Teng Zhai,et al.  Hydrogenated TiO2 nanotube arrays for supercapacitors. , 2012, Nano letters.

[31]  M. A. Reid,et al.  A Bismuth‐Based Electrocatalyst for the Chromous‐Chromic Couple in Acid Electrolytes , 1986 .

[32]  M. A. Reid,et al.  Chemical and Electrochemical Behavior of the Cr(III)/Cr(II) Half‐Cell in the Iron‐Chromium Redox Energy Storage System , 1985 .

[33]  D. Cheng,et al.  The Influence of Thallium on the Redox Reaction Cr3+/Cr2+ , 1985 .

[34]  Yanrong Lv,et al.  Electrode materials for vanadium redox flow batteries: Intrinsic treatment and introducing catalyst , 2022 .

[35]  C. Flox,et al.  Redox flow batteries: Status and perspective towards sustainable stationary energy storage , 2021, Journal of Power Sources.