MOF-directed templating synthesis of a porous multicomponent dodecahedron with hollow interiors for enhanced lithium-ion battery anodes

Abstract

A NiCo2O4/NiO-HD nanocage is synthesized using MOF as a precursor and self-sacrificing template. A lithium-ion battery anode based this novel nanomaterial exhibits outstanding capacity, cycling stability and rate performance.

Hierarchical Nanostructures: Design for Sustainable Water Splitting

“…Figure 9a-h display the digital, SEM and TEM images related to ZIF-67 precursors and the obtained LDH nanocages. [170] It can be seen that the nanocages consist of very thin LDH sheets and the primary polyhedral morphology is well preserved. The formation of the LDH is triggered by the hydrolysis of the Ni(NO) 2 in the ethanol solution because this chemical process increases the solution acidity and causes the release of Co 3+ from the ZIF.…”

“…Reproduced with permission. [170] Copyright 2015, Royal Society of Chemistry. a) Digital photo of ZIF-67 solution.…”

Rational Design of Metal‐Organic Framework Derived Hollow NiCo2O4 Arrays for Flexible Supercapacitor and Electrocatalysis

“…[1][2][3][4][5][6] In particular, due to their porous structures with high surface areas, MOFs are ideal sacrificial templates to derive into various porous active materials, such as carbonaceous materials, metal oxides, and metal phosphides. [11][12][13][14][15][16][17][18][19] For example, a novel hollowed cubic NiS nanoframe electrode was achieved by anion exchange of a Ni-Co MOF with S 2− ions, which demonstrated enhanced capacitive performance for electrochemical capacitors. [11][12][13][14][15][16][17][18][19] For example, a novel hollowed cubic NiS nanoframe electrode was achieved by anion exchange of a Ni-Co MOF with S 2− ions, which demonstrated enhanced capacitive performance for electrochemical capacitors.…”

Decorating nanoporous ZIF-67-derived NiCo2O4 shells on a Co3O4 nanowire array core for battery-type electrodes with enhanced energy storage performance

“…[7][8][9][10][11][12][13][14][15][16][17][18][19] Recently, MOFs have been used as good templates for synthesis of metal oxides/hydroxides with various structures including hollow nanocages, nanoframes and multishelled microboxes. [20][21][22][23][24][25][26][27] For example, Co-containing ZIF-67 templates were converted into Co 3 O 4 /NiCo 2 O 4 double-shelled nanocages by hydrolysis reaction and post-annealing treatment, the targeted nanocages evaluated as electrodes for pseudocapacitors had shown much more superior electrochemical properties to those of general Co 3 O 4 nanomaterials. 26,[28][29][30][31] Unfortunately, all of the reported MOFderived metal oxides/hydroxides are particle-like shape in big size (μm-scale), the agglomeration and low surface area leads to decreased active sites for charge storage.…”