Metal oxide mesocrystals with tailored structures and properties for energy conversion and storage applications

2014年5月16日 NPG Asia Materials 6, e5 (2014) doi:10.1038/am.2014.21



Takashi Tachikawa & Tetsuro Majima

Nanotechnology: Superstructures for energy applications
Mesocrystals are periodic arrangements of nanoparticles that form larger structures of several hundreds of nanometers, or even micrometers, in size. Takashi Tachikawa and Tetsuro Majima from Osaka University in Japan review the potential of metal oxide mesocrystals for applications in energy generation and energy storage. Nanoparticles can have very different properties compared to the regular bulk material from which they originate. For example, the larger surface area of mesocrystals is more efficient for water splitting or catalysis. Additionally, the nanoparticles in mesocrystals are held in place, which can further improve their properties — such as the ability to transport electrical charges. Mesocrystals containing titanium dioxide nanoparticles are of particular interest for use in catalytic processes or as electrodes in lithium batteries. Nevertheless, the assembly of these nanoparticle superstructures, which can require complex fabrication processes, has hampered technological applications so far.


NPG Asia Materials ISSN 1884-4049(Print) ISSN 1884-4057(Online)