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Catalytic Activity of Non-Metal Doped Graphene for Electrocatalytic ORR by Jinlong Wang at Abbey's Bookshop,
Catalytic Activity of Non-Metal Doped Graphene for Electrocatalytic ORR
— —
Jinlong Wang

Catalytic Activity of Non-Metal Doped Graphene for Electrocatalytic ORR

Jinlong Wang

$105.95   $84.90

Paperback

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English
Eliva Press
07 November 2025
Chemistry
This book employs DFT to study the electrocatalytic ORR activity of nonmetal-doped graphene. Results show ORR intermediates (O₂, OOH, O, OH) preferentially adsorb on positively charged sites with large atomic magnetic moments, with adsorption strength correlating to these properties. Most dopants (B, P, As, Si, S) lose electrons, becoming positively charged with small magnetic moments, serving as primary active sites. Highly electronegative dopants (N, O, F, Cl) gain electrons, making adjacent carbon atoms the active sites, potentially creating multiple catalytic centers. Adsorption strength directly affects activity: weak adsorption hinders
*O₂/
*OOH hydrogenation, while strong adsorption limits
*O/
*OH hydrogenation, possibly favoring 2e⁻ H₂O₂ formation over the 4e⁻ pathway. By analyzing Gibbs free energy changes, the rate-determining steps were identified. The As-N₄ configuration shows exceptional stability and activity, with an overpotential of 0.53 V. Dual/multiple doping effectively tunes graphene's electronic structure, optimizing intermediate adsorption and enhancing performance. Optimal adsorption energies were determined: O₂ (-0.55 eV), OOH (-1.81 eV), O (-3.33 eV), OH (-2.42 eV). Near these values, ΔG at 1.23 V approaches zero, enabling prediction of rate-limiting steps. This validated method aids in screening high-performance ORR catalysts. In summary, this work provides key insights for improving nonmetal-doped graphene's ORR activity and designing advanced electrocatalysts.
By:  
Imprint:   Eliva Press
Dimensions:   Height: 229mm,  Width: 152mm,  Spine: 5mm
Weight:   145g
ISBN:   9789999326506
ISBN 10:   9999326501
Pages:   102
Publication Date:  
Audience:   General/trade ,  ELT Advanced
Format:   Paperback
Publisher's Status:   Active

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