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Poly(ionic liquid)-derived metal-free heteroatom co-doped porous carbons with peroxidase-like activity
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).ORCID-id: 0000-0003-2133-888X
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).ORCID-id: 0009-0001-7095-0429
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).ORCID-id: 0000-0003-1016-5135
Rekke forfattare: 42024 (engelsk)Inngår i: Applied Materials Today, ISSN 2352-9407, Vol. 37, artikkel-id 102081Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Development of affordable, efficient and metal-free heterogeneous catalytic systems has been a persistent challenge in academia and industry. Heteroatom-doped metal-free carbon materials are increasingly recognized as valuable heterogeneous catalysts, and if well-designed, can present comparable performance to, or even surpass transition metal-containing catalysts. Their physicochemical properties and structural characteristics are tunable in a wide range, plus being free of leakage problems of transition metal species into the environment. Herein, three types of hierarchically porous N/X co-doped carbon materials (X denotes B, P or S) were synthesized via using poly(ionic liquid)s (PILs) as carbon precursors and source of heteroatom dopants. The incorporation of sacrificial pore-inducing templating agents which created abundant edge defects, in combination with a heteroatom co-doping strategy, enhanced the number of active sites and their peroxidase-like catalytic activities. Comparison with only nitrogen single-doped porous carbons as reference demonstrated that co-doping with nitrogen and another heteroatom exhibits higher peroxidase-like activity and affinity towards substrates. Among the three types of heteroatom co-doped porous carbonaceous artificial enzymes, the N/B co-doped carbonaceous catalyst displayed the highest specific activities and Vmax values. These observations suggest a synergistic effect of the co-dopants, here N and B in the enzyme that holds a promising potential to further enhance peroxidase-like activity.

sted, utgiver, år, opplag, sider
2024. Vol. 37, artikkel-id 102081
Emneord [en]
Heteroatom co-doped carbon, Metal-free carbonaceous catalyst, Poly(ionic liquid)-derived carbon, Artificial enzyme, Peroxidase-like activity
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Identifikatorer
URN: urn:nbn:se:su:diva-228193DOI: 10.1016/j.apmt.2024.102081ISI: 001176572300001Scopus ID: 2-s2.0-85184007619OAI: oai:DiVA.org:su-228193DiVA, id: diva2:1850422
Tilgjengelig fra: 2024-04-10 Laget: 2024-04-10 Sist oppdatert: 2024-04-10bibliografisk kontrollert

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Saeedi Garakani, SadafSikdar, AnirbanPang, KangleiYuan, Jiayin

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