Porphyrinic MOF derived Single-atom electrocatalyst enables methanol oxidation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F22%3A73618790" target="_blank" >RIV/61989592:15640/22:73618790 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1385894722033745?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894722033745?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cej.2022.137888" target="_blank" >10.1016/j.cej.2022.137888</a>

Result language
angličtina
Original language name
Porphyrinic MOF derived Single-atom electrocatalyst enables methanol oxidation
Original language description
Electrochemical methanol oxidation reaction (MOR) serves as a key route for renewable energy technologies. However, unmet challenges remain in the preparation of low-cost, efficient and robust electrocatalysts for MOR. Herein, a porphyrinic metal–organic framework (MOF) with spatially isolated Ni centres is prepared. Upon pyrolysis, this affords a single-atom Ni implanted nitrogen-doped porous carbon (20% Ni-N-C). Integrating abundant and accessible single-atom Ni sites, hierarchical porosity, excellent conductivity with stable Ni-N4 moieties all in one, the derived ultra-stable 20% Ni-N-C exhibits high MOR activity, impressive durability and CO tolerance, thereby outperforming state-of-the-art nonprecious metal based electrocatalysts. Computational insights reveal a low energy barrier of 1.19 eV for the rate-determining step, in agreement with the experimental observations of superior MOR activity. As the first foray into improving MOR efficiency with nonprecious metal based single-atom electrocatalysts, the yet-unrealized potential for MOFs and related modular hybrids is demonstrated.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project
<a href="/en/project/EF16_019%2F0000754" target="_blank" >EF16_019/0000754: Nanotechnologies for Future</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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