Transition metal loaded carbon penta-belt SACs for hydrogen and oxygen evolution reactions and identification of systematic DFT method to characterize the main interacting orbital for non-periodic system

Allangawi, Abdulrahman; Ayub, Khurshid; Gilani, Mazhar Amjad; Imran, Muhammad; Mahmood, Tariq

doi:10.1016/j.ijhydene.2023.11.333

International Journal of Hydrogen Energy

2024

DOI: 10.1016/j.ijhydene.2023.11.333

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Transition metal loaded carbon penta-belt SACs for hydrogen and oxygen evolution reactions and identification of systematic DFT method to characterize the main interacting orbital for non-periodic system

Abdulrahman Allangawi,

Khurshid Ayub,

Mazhar Amjad Gilani

et al.

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Cited by 5 publications

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Theoretically Insight into Co and S Pairs Dispersed on N‐Doped Graphene: Promising Bifunctional Electrocatalysts for Oxygen Reduction/Evolution Reactions

Zhang,

Yu,

et al. 2024

Advcd Theory and Sims

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Single atom catalysts (SACs) are considered as efficient catalysts for hydrogen‐based energy conversion and storage because of their excellent catalytic performance for oxygen evolution reactions (OER) and oxygen reduction reactions (ORR). In the present work, a new concept of SACs is proposed with the capacity to form d‐p orbital hybridization. These computationally designed SACs contain a metal and non‐metal pair embedded in the N‐doped graphene framework (MX@N6). Based on the overpotential evaluation by the first principle theory calculations, CoS@N6 containing Co and S atom pair possessed a low overpotential of 0.37 V/0.29 V when used as a bifunctional ORR/OER catalyst. These overpotentials are much lower than Co@N6 without S atom. The electronic structure analysis revealed that non‐metal atoms of the catalyst can regulate the electronic structure of active metal sites and facilitate the adsorption and charge transfer between intermediates and the catalyst resulting in enhanced catalytic performance. This work demonstrates an alternative way to further improve the catalytic activity of SACs by introducing a non‐metal atom that may shed light on the rational design of advanced SACs for ORR/OER with high efficiency and stability.

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Theoretically Insight into Co and S Pairs Dispersed on N‐Doped Graphene: Promising Bifunctional Electrocatalysts for Oxygen Reduction/Evolution Reactions

Zhang,

Yu,

et al. 2024

Advcd Theory and Sims

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The first row transition metal-corrole complexes as a single atom catalyst for electrochemical hydrogen evolution reaction: A DFT insight

Yaseen,

Hashmi,

Ain

et al. 2024

International Journal of Hydrogen Energy

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Highly active late second-row transition metals loaded B12P12 nanocages as bifunctional single atom catalysts toward hydrogen and oxygen evolution reactions

Allangawi,

Ayub,

Gilani

et al. 2024

International Journal of Hydrogen Energy

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Transition metal loaded carbon penta-belt SACs for hydrogen and oxygen evolution reactions and identification of systematic DFT method to characterize the main interacting orbital for non-periodic system

Cited by 5 publications

References 81 publications

Theoretically Insight into Co and S Pairs Dispersed on N‐Doped Graphene: Promising Bifunctional Electrocatalysts for Oxygen Reduction/Evolution Reactions

Theoretically Insight into Co and S Pairs Dispersed on N‐Doped Graphene: Promising Bifunctional Electrocatalysts for Oxygen Reduction/Evolution Reactions

The first row transition metal-corrole complexes as a single atom catalyst for electrochemical hydrogen evolution reaction: A DFT insight

Highly active late second-row transition metals loaded B12P12 nanocages as bifunctional single atom catalysts toward hydrogen and oxygen evolution reactions

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