Fabrication and Electrochemical Performance of Polyoxometalate-Based Three-Dimensional Metal Organic Frameworks Containing Carbene Nanocages
| Autor: | Jianzhuang Jiang, Jingquan Sha, Yu-Fei Song, Yanyan Chen, Pei-Pei Zhu, Xi-Ya Yang |
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| Rok vydání: | 2018 |
| Předmět: |
Fabrication
Materials science 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Anode law.invention chemistry.chemical_compound Nanocages chemistry Chemical engineering law Polyoxometalate General Materials Science Metal-organic framework 0210 nano-technology Carbene |
| Zdroj: | ACS Applied Materials & Interfaces. 10:16660-16665 |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | Two new polyoxometalate (POM)-based three-dimensional metal organic carbene frameworks, [Ag10(trz)4(H2O)2][HPW12O40] (POMs@MCNCs-1) and [Ag10(trz)4(H2O)6][H2SiW12O40] (POMs@MCNCs-2), were hydrothermally synthesized, in which Keggin-type polyoxoanions as templates induce the formation of two different kinds of metal–carbene nanocages (MCNCs) for the first time. Combination of the reversible multielectron redox behavior and electron storage functions of POMs with the good electrical conductivity of the single-walled carbon nanotubes (SWNTs) renders the POMs@MCNCs-1/SWNT composite excellent electrochemical performance and good stability as anode materials of lithium-ion batteries, with up to 2000 mA h g–1 for the first discharge capacity and ca. 859 mA h g–1 for the second cycle at a current density of 100 mA g–1. The successful fabrication of unprecedented MCNCs into the POM-based three-dimensional metal–organic frameworks in the present work must initiate extensive research interests in diverse fields. |
| Databáze: | OpenAIRE |
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