2019 Graduate Student Showcase

Title of Submission

Amorphous to Cubic Nanoporous Niobium Oxide Electrodes for Lithium-Ion Batteries

Degree Program

Material Science and Engineering, PhD

Major Advisor Name

Hui (Claire) Xiong

Type of Submission

Scholarly Poster


New electrode materials are needed to produce the next generation of electrochemical energy storage (EES) devices. In the case of amorphous metal oxides, lower energy and power densities have been reported, in general. Nevertheless, amorphous oxides should not be overlooked as a potential electrode material. We report here on the electrochemically driven amorphous-to-crystalline phase transformation of an anodically grown nano-channeled niobium oxide (NCNO) electrode. The crystalline NCNO has exhibited improvements in stability and rate capability compared to its amorphous form. This work aims to gain a fundamental understanding of the structural evolution of the metal oxide and charge storage and transport mechanism.

Funding Information

National Science Foundation under Grant No. DMR-145984 and DMR-1408949

This document is currently not available here.