FePc/C exhibits higher electroactivity towards the ORR in basic media in terms of onset potential and current density, a similar number of electrons exchange and production of by-products and enhanced long-term stability and methanol tolerance than Pt/C [121,[125], [126], [127], [128],17...
Furthermore, the oxidation number of organic carbons and the number of transferred electrons of a given organic compound can be determined by the derived mathematical equations.Yuen, Pong KauLau, Cheng Man DianaChemistry Teacher International
All cyclic voltammograms were normalized by the geometric surface area of the pyrolyzed carbon fiber electrodes. Full size image Here, n is the number of electrons transferred, F is the Faraday’s constant, v is the scan rate, R is the universal gas constant, and D O and D R are ...
To examine the ORR performance, the number of electrons (n) was conducted according to Koutecky-Levich (K-L) equation: Where J is the measured current density, Jk and JL are the kinetic and diffusion-limiting current density, respectively. B is Levich slope which is given by (2). n is...
After the analysis of several studies, we concluded that to have good adsorption, it is necessary to choose the right treatment with the right activating agent to obtain the appropriate functions that will enhance the adsorption process. In addition, the functions that can react with the ...
This huge number of heteroatoms influences the performances of hard carbons during electrochemical operation. The impact of the presence of heteroatoms on potentiogram of hard carbons has been illustrated in subsequent sections. To understand the thermal stability of ASR, the ASR was subjected to ...
Electronically, the structure is stabilized by a favourable sandwich type charge distribution and satisfaction of the octet rule for ppCs. Note that all the valence electrons in the nanoribbon are locally delocalized within each ppC moiety, representing a new type of ribbon aromaticity, which should...
It has an atomic number of 6, with an atomic mass of approximately 12.01 g/mol, making it a lightweight, nonmetallic, and tetravalent element—characteristics that allow it to form four bonds with other atoms due to the four electrons present in its outer shell. Remarkably, carbon ranks as...
(c) Number of electrons transferred during ORR calculated based on ring currents. For all RRDE measurements, the catalyst loadings were 0.6 mg cm−2. The electrode rotation speed was 1600 rpm and the scan rate was 5 mV s−1. Full size image The very high ORR activity of FeCo...
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