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Updated: Feb 24, 2026
Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
Published on: February 10, 2023
Versatile NiO/mesoporous carbon nanodisks: controlled synthesis from hexagon shaped heterobimetallic metal-organic
Dehong Zeng1, Ying Yang, Feng Yang
1State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Changping, Beijing 102249, China. bjliu@cup.edu.cn.
Abstract:
Hexagonal NiO/mesoporous carbon nanodisks (NiO/MCN) are facilely and controllably synthesized via constructing nickel-zinc trimesic acid heterobimetallic metal-organic framework (HMOF) disks before pyrolysis at 910 °C. Tailoring the Ni/(Zn + Ni) feed ratio and the reaction time during the HMOF synthesis creates a well-defined hexagonal carbon nanodisk with properly populated NiO nanocrystals while maintaining high porosity and conductivity. Such an elaborately fabricated NiO/MCN is highly stable, and exhibits the largest specific capacitance of 261 F g-1 and the highest specific activity factor of 1.93 s-1 g-1 of any composite nanodisk during the capacitive test and 4-nitrophenol reduction, respectively.
