Controllable nitrogen-doping of nanoporous carbons enabled by coordination frameworks

Literature Information

Publication Date 2018-12-13
DOI 10.1039/C8TA09817D
Impact Factor 12.732
Authors

Wei Zhang, Saiyu Bu, Qinghong Yuan, Ming Hu


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Abstract

Doping nitrogen into nanoporous carbons is of great significance in various applications. However, in situ synthesis of N-doped nanoporous carbons with controllable/predictable N configurations remains a challenge. On the basis of first-principles calculations, we developed a temperature-control strategy to tailor the N configurations in nanoporous carbons based on the different thermal stabilities of the N dopants. By annealing the coordinated 2-methylimidazole molecules in a range of temperatures, the content of the N dopants in the obtained nanoporous carbons can be controlled, eventually leading to a maximized percentage of pyridinic-N. The K-ion storage capacity of the N-doped nanoporous carbons showed a strong correlation with the N configurations according to a carbon/K half-cell test. The nanoporous carbon with the maximum percentage of pyridinic-N showed a remarkable rate performance and cycling stability, matching with the prediction of the first-principles calculations.

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Source Journal

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
Self-citation Rate: 4.7%
Articles per Year: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

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