From Bimetallic Metal‐Organic Framework to Porous Carbon: High Surface Area and Multicomponent Active Dopants for Excellent Electrocatalysis
От биметаллического металл–органического каркаса к пористому углероду: большая удельная поверхность и многокомпонентные активные легирующие добавки для превосходного электрокатализа
2015-07-20
SCID: 54.1/sgxzk4f5
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CoNx moietybimetallic metal-organic frameworksnitrogen/co dopingoxygen reduction reactionporous carbon
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Abstract (AI)
Bimetallic metal-organic frameworks are rationally synthesized as templates and employed for porous carbons with retained morphology, high graphitization degree, hierarchical porosity, high surface area, CoNx moiety and uniform N/Co dopant by pyrolysis. The optimized carbon with additional phosphorus dopant exhibits excellent electrocatalytic performance for the oxygen reduction reaction, which is much better than the benchmark Pt/C in alkaline media.
Key Findings
1
An optimized carbon material with additional phosphorus dopant shows excellent electrocatalytic activity for the oxygen reduction reaction (ORR).
2
Bimetallic metal-organic frameworks were synthesized and used as templates to produce porous carbons that retain MOF morphology.
3
Pyrolyzed carbons exhibit high graphitization, hierarchical porosity, high surface area, and uniform N/Co dopant distribution including CoNx moieties.
4
The phosphorus-doped optimized carbon outperforms benchmark Pt/C catalysts for ORR in alkaline media.
Research Object
Porous carbon materials derived from bimetallic metal–organic frameworks with retained morphology, high graphitization, hierarchical porosity, and N/Co (and P) dopants
Research Subject
Electrocatalytic performance for the oxygen reduction reaction (ORR), including activity improvements due to multicomponent active dopants (CoNx, N, and P), high surface area, and hierarchical porosity compared to Pt/C in alkaline media
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2015-07-20
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