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Redox Flow Batteries Vanadium to Earth Quinones

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Redox Flow Batteries Vanadium to Earth Quinones ( redox-flow-batteries-vanadium-earth-quinones )

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6.2 6.3 7 7.1 7.2 7.3 7.4 7.5 7.3.4.2 Enhanced carbon-based electrodes.......................................199 7.3.4.2.1 Sodium 4,5-dihydroxybenzene-1,3-disulfonate (+) vs. anthraquinone 2,7- Disulfonic acid disodium salt (-) ............................199 Conclusions ....................................................................................204 Perspective of Organic Redox Flow Devices.........................................206 6.1.3.1 Characterization.................................................................108 6.1.3.1.1 6.1.3.1.2 6.1.3.1.3 Structural characterization ................................................ 108 Chemical Characterization ................................................ 111 Electrochemical characterization ........................................ 116 6.1.3.2 Single cell performance.......................................................122 6.1.3.3 Mechanism proposed .......................................................... 128 6.1.4 Cerium oxide (CeO2).................................................................131 6.1.4.2 Characterization ............................................................... 133 Electrochemical characterization........................................135 Single cell performance.......................................................140 Conclusions ....................................................................................146 Vanadium redox flow batteries perspective. ........................................ 148 Organic Redox Flow Batteries.......................................150 Current trend in Redox Flow Batteries................................................150 Rise of the organic active materials ...................................................150 Quinones as electroactive molecules .................................................. 152 7.3.1 Selection criteria for electrolyte..................................................156 7.3.2 Cathodic electroactive species....................................................162 6.1.4.1 6.1.4.1.1 7.3.2.1 7.3.2.1.1 7.3.2.1.2 Electrodes enhancement .....................................................162 Characterization .............................................................. 163 Electrochemical characterization........................................167 7.3.3 Anodic electroactive species ......................................................176 7.3.3.1 7.3.3.1.1 7.3.3.1.2 Electrode enhancement.......................................................177 Characterization .............................................................. 177 Electrochemical characterization........................................181 7.3.4 Single cell performance.............................................................187 7.3.4.1 7.3.4.1.1 disodium 7.3.4.1.2 disodium Carbon-based electrodes.....................................................187 1,4-benzoquinone (+) vs. anthraquinone 2,7- Disulfonic acid salt (-) .............................................................................188 1,2-benzoquinone (+) vs. anthraquinone 2,7- Disulfonic acid salt (-) .............................................................................193 7.3.4.1.3 anthraquinone 2,7- Disulfonic acid disodium salt (-) ............................195 Sodium 4,5-dihydroxybenzene-1,3-disulfonate (+) vs.

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