Journal of the American Chemical Society· 2015Q1
Thermal Conversion of Core–Shell Metal–Organic Frameworks: A New Method for Selectively Functionalized Nanoporous Hybrid Carbon
- 1,506citations
- Q1SCImago
- 2015year
Short summary
A new method converts core-shell ZIF-8@ZIF-67 metal-organic frameworks into hybrid carbon materials with nitrogen-doped carbon (NC) cores and graphitic carbon (GC) shells.
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Key points
- Core-shell ZIF-8@ZIF-67 crystals were synthesized via seed-mediated growth.
- Thermal treatment produced hybrid carbon materials with NC cores and GC shells.
- This is the first instance of integrating NC and GC at the nanoscale within one particle.
- The hybrid carbon showed a specific capacitance of 270 F·g⁻¹ at 2 A·g⁻¹.
AI-generated from the title and abstract; the full text is not read.
Abstract
Core-shell structured ZIF-8@ZIF-67 crystals are well-designed and prepared through a seed-mediated growth method. After thermal treatment of ZIF-8@ZIF-67 crystals, we obtain selectively functionalized nanoporous hybrid carbon materials consisting of nitrogen-doped carbon (NC) as the cores and highly graphitic carbon (GC) as the shells. This is the first example of the integration of NC and GC in one particle at the nanometer level. Electrochemical data strongly demonstrate that this nanoporous hybrid carbon material integrates the advantageous properties of the individual NC and GC, exhibiting a distinguished specific capacitance (270 F·g(-1)) calculated from the galvanostatic charge-discharge curves at a current density of 2 A·g(-1). Our study not only bridges diverse carbon-based materials with infinite metal-organic frameworks but also opens a new avenue for artificially designed nanoarchitectures with target functionalities.
The authors' abstract, as published at the source. Journal of the American Chemical Society, 2015 · DOI ↗
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Field: Inorganic Chemistry
Inorganic ChemistryChemistry