Abstract Title
The Effect of Water in Solid TiO2 Nanoparticle Electrode Material for Metal Ion Batteries
Additional Funding Sources
The project described was supported by the Pacific Northwest Louis Stokes Alliance for Minority Participation through the National Science Foundation under Award No. HRD-1410465.
Abstract
Physically and chemically adsorbed water is present in water-assisted crystallization of amorphous titanium dioxide (TiO2) nanoparticles. In this case, the trend follows a decrease in crystallinity with an increase of water content, which can dramatically change the charge storage kinetics of the transition metal oxide electrode for metal ion batteries. Through this work, we will investigate the effect of water on TiO2 nanoparticles with controlled crystallinity and uniform size. The removal of water via heat treatments will allow a variety of water containing TiO2 nanoparticle to be analyzed and may refine the crystallinity of TiO2 nanoparticle to become a more efficient anode. This phenomenon could improve the charge and discharge capacity of the material. Moreover, complete removal of water from the TiO2 nanoparticle could negatively affect Li-ion diffusion through the crystal. This research intends to identify the optimal heat treatment to remove the optimal quantity of water from TiO2 nanoparticles by annealing at 120, 200, 300, and 400°C and electrochemically testing via half-cell batteries. Through the study, we can understand the intricacies of water on the performance of the anatase TiO2 anodes for LIBs.
The Effect of Water in Solid TiO2 Nanoparticle Electrode Material for Metal Ion Batteries
Physically and chemically adsorbed water is present in water-assisted crystallization of amorphous titanium dioxide (TiO2) nanoparticles. In this case, the trend follows a decrease in crystallinity with an increase of water content, which can dramatically change the charge storage kinetics of the transition metal oxide electrode for metal ion batteries. Through this work, we will investigate the effect of water on TiO2 nanoparticles with controlled crystallinity and uniform size. The removal of water via heat treatments will allow a variety of water containing TiO2 nanoparticle to be analyzed and may refine the crystallinity of TiO2 nanoparticle to become a more efficient anode. This phenomenon could improve the charge and discharge capacity of the material. Moreover, complete removal of water from the TiO2 nanoparticle could negatively affect Li-ion diffusion through the crystal. This research intends to identify the optimal heat treatment to remove the optimal quantity of water from TiO2 nanoparticles by annealing at 120, 200, 300, and 400°C and electrochemically testing via half-cell batteries. Through the study, we can understand the intricacies of water on the performance of the anatase TiO2 anodes for LIBs.
Comments
W27