Results 21 to 30 of about 17,200 (256)
Investigation on the Origin of Sluggish Anionic Redox Kinetics in Cation-Disordered Cathode
Energies, 2023 Cation-disordered rock salt (DRX) cathodes exhibit high specific capacity due to the simultaneous use of anionic and cationic redox reactions. However, DRX systems face severe challenges that limit their practical applications; a most important challenge
Qi Liang +7 more
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High Reversibility of Lattice Oxygen Redox Quantified by Direct Bulk Probes of Both Anionic and Cationic Redox Reactions [PDF]
Joule, 2019 Summary The reversibility and cyclability of anionic redox in battery electrodes hold the key to its practical employments. Here, through mapping of resonant inelastic X-ray scattering (mRIXS), we have independently quantified the evolving redox states of both cations and anions in Na2/3Mg1/3Mn2/3O2.
Kehua Dai +19 more
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Nanomaterials, 2021 Layered double hydroxides (LDHs) are anionic clays which have found applications in a wide range of fields, including electrochemistry. In such a case, to display good performances they should possess electrical conductivity which can be ensured by the ...
Domenica Tonelli +3 more
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A novel method for Ion Exchange Capacity characterization applied to Anion Exchange Membranes for Water Electrolysers [PDF]
E3S Web of Conferences, 2023 Hydrogen production from water electrolysis, hydrogen fuel cells and redox flow batteries are the right approach for the renewable energy sector because the electricity generated by solar, wind, photovoltaic, hydroelectric can be managed with a carbon ...
D’Alessandro Alessio +4 more
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Local Redox Reaction of High Valence Manganese in Li2MnO3-Based Lithium Battery Cathodes
Cell Reports Physical Science, 2020 Summary: Li2MnO3 endows Li-rich layered oxides with a superior energy density; however, its electron transfer mechanism is still unclear. Here, the electronic and thermodynamic behavior of LixMnO3 (x = 0.5–2) is determined using first-principles ...
Zihe Zhang +3 more
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Unusual double ligand holes as catalytic active sites in LiNiO2
Nature Communications, 2023 Designing efficient catalyst for the oxygen evolution reaction (OER) is of importance for energy conversion devices. The anionic redox allows formation of O-O bonds and offers higher OER activity than the conventional metal sites.
Haoliang Huang +19 more
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Redox activity of surface oxygen anions in oxygen-deficient perovskite oxides during electrochemical reactions [PDF]
Nature Communications, 2015 Surface redox-active centres in transition-metal oxides play a key role in determining the efficacy of electrocatalysts. The extreme sensitivity of surface redox states to temperatures, to gas pressures and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques.
David N, Mueller +3 more
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Nanoscale Research Letters, 2019 Lithia-based materials are promising cathodes based on an anionic (oxygen) redox reaction for lithium ion batteries due to their high capacity and stable cyclic performance.
Byeong Gwan Lee, Yong Joon Park
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Scientific Reports, 2022 The need to better understand the binding mode of antioxidants (sulfur oxyanions) kinetically is a concern in medicine. Hence, a spectrophotometric method was used to study the application of the Piszkiewicz model on the electron transfer reaction of ...
I. U. Nkole +3 more
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Advanced Science, 2021 Li‐excess layered cathode (LLC) materials have a high theoretical specific capacity of 250 mAh g−1 induced by transition metal (cationic) and oxygen (anionic) redox activity.
Yongju Lee +6 more
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