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Both challenging and necessary, as shown by the introduction of low-cost, high-performance, and durable integrated bifunctional flexible air electrodes for use in Zn-Air batteries. We describe a fast and scalable electropolymerization process used to produce an electrode material of heavily N-doped carbon filming single-wall carbon nanotube networks. The resulting core/shell structure hybrid electrode has the ability, mechanics, and three-dimensional interconnected porous structure of SWCNT films, as well as abundant pyridinic N, giving it excellent catalytic activity for both the oxygen reduction and evolution reactions.
Source link: https://europepmc.org/article/PPR/PPR530471
The introduction of V O in MnO 2 can bring the value of the Gibbs free energy of Zn 2+ adsorption near V O to a thermal neutral value. The Zn 2+ adsorption/desorption process on V O -MnO 2 is more reversible than that on u03b1-MnO 2, according to the thermal neutrality results. - MnO 2 battery with as-built Zn/V O - 0-1 and high energy density up to 408. 5 Wh kg -1 - can be delivered with a large capacity of 305. 0 mAh g -1 and high energy density up to 408. 5 Wh kg -1. V O. The good energy storage results can be attributed to V O. In addition, the V O/MnO 2 /CNPK/G composite has the same structure as nanotube arrays, as a result of the vertical growth of u03b1-MnO 2 nanotubes on CNPK. By compositing with G and CNPK, V O -MnO 2's electrochemical results have been vastly enhanced.
Source link: https://europepmc.org/article/MED/35939330
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