Three-dimensional hierarchical pompon-like Co₃O₄ porous spheres for high-performance lithium-ion batteries

Abstract

3D hierarchical pompon-like Co3O4 porous spheres were produced by a simple hydrothermal method. The 3D structure is composed of many nanowires which gathered as a ring in the centre and fanned out via a special self-assembly fashion, resulting in good lithium ion battery performance.

Hierarchical Nanostructures: Design for Sustainable Water Splitting

“…[78,87] Other mechanisms, such as the crystal splitting mechanism, have also been found to play important roles in the synthesis of urchin-like architectures. [79,88] …”

“…Reproduced with permission. [79] Copyright 2014, Royal Society of Chemistry. c) Urchin-like WO 2.72 nanostructures.…”

Template-free synthesis of hierarchical porous Co 3 O 4 microspheres and their application for electrochemical energy storage

“…Their special sphere architectures provide a wide spectrum of applications such as drug delivery [24], Li ion batteries [25,26], and electro-catalysis [27]. To date, several Co 3 O 4 micro/nano microspheres have been prepared by different methods including hydrothermal synthesis (HS) [24,28], solvothermal synthesis [29], template-assisted electro-deposition [7], and chemical precipitation [30,31], and improved electrochemical/chemical properties have been proven in these systems. Inspired by these works, we report a facile template-free method, chemical bath deposition (CBD), for the fabrication of Co 3 O 4 microspheres consisting of interconnected nanoflakes.…”

Synthesis of shish-kebab-like NiO@Co3O4 nanowire arrays and their application for electrochemical energy storage

“…Until now, many nanostructured metal oxides electrodes, including nanowires [9], nanoflakes [10], nanotubes [7] and core/shell structures [11], have been prepared and demonstrated with enhanced electrochemical performance. Particularly, freestanding one-dimensional (1D) core/shell arrays of metal hydroxides/oxides have sparked great interest due to their interesting physical and chemical properties as compared to the single components.…”