1D N-doped hierarchically porous hollow carbon tubes derived from a supramolecular template as metal-free electrocatalysts for a highly efficient oxygen reduction reaction
| Autor: | Guo-Sheng Huang, Jing-Jia Zhang, Jia-Zhan Li, Xu-Lei Sui, Qing-Yan Zhou, Lei Zhao, Zhen-Bo Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Supramolecular chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences 0104 chemical sciences Catalysis Supramolecular assembly chemistry.chemical_compound chemistry Chemical engineering Melamine cyanurate General Materials Science 0210 nano-technology Porosity Mesoporous material Carbon |
| Zdroj: | Journal of Materials Chemistry A. 6:6212-6219 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c8ta01296b |
| Popis: | For the first time, a supramolecular template-derived synthesis approach is reported to fabricate 1D nitrogen-doped hollow carbon tubes (h-NCTs) with a hierarchical micro/mesoporous structure. A melamine cyanurate supramolecular assembly is used as the tubular-structure guiding template and nitrogen source, endowing the obtained h-NCTs catalyst with proliferative catalytic active sites, a high surface area as well as a well-defined multiscale pore system. The sample prepared at 900 °C (h-NCT-900) displays an exceptional half-wave potential of 0.86 V versus RHE, which is one of the best values recorded in the literature for a metal-free electrocatalyst. |
| Databáze: | OpenAIRE |
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