Pulsed Laser Deposition of Ruthenium Oxide Thin Films for Electrocatalytic Splitting of Water for Oxygen and Hydrogen Evolution Reactions

POSTER

Abstract

This presentation reports the synthesis, structural characterization and evaluation of electrocatalytic properties of crystalline ruthenium oxide (RuO2) thin films. The films were grown

using Pulsed Laser Deposition technique on a variety of single-crystal substrates, sapphire (Al2O3) and titanium dioxide (TiO2) while varying oxygen pressures from 5mTorr to 50mTorr, and

substrate temperatures from 400°C to 700°C. The films were structurally characterized using xray diffraction, x-ray photon spectroscopy and scanning electron microscopy. Cyclic-voltammetry and Linear-sweep-voltammetry were also measured and used to evaluate the electrochemical properties during OER, with the aim of providing insights into role crystal structure and surface orientation on the electrochemical properties of the films.

*We would like to thank the NSF PREM program, which has allowed us to set up a PREM center on “Collaborative research and education in advanced materials (CREAM”) via grant number DMR-2425119 at NCAT. This research has been possible due to this CREAM center.

Publication: In preparation - Pulsed Laser Deposition of Ruthenium Oxide Thin Films for Electrocatalytic
Splitting of Water for Oxygen and Hydrogen Evolution Reactions
Anansi Coleman, Wisdom Akande, Ikenna Chris-Okoro, Sheilah Cherono, Mengxin Liu, Dhananjay
Kumar and Abebe Kebede

Presenters

  • Anansi Coleman

    • NC A&T State University

Authors

  • Anansi Coleman

    • NC A&T State University

  • Wisdom Akande

    • NC A&T State University

  • Ikenna Chris-Okoro

    • NC A&T State University

  • Sheilah Cherono

    • NC A&T State University

  • Mengxin Liu

    • NC A&T State University

  • Dhananjay Kumar

    • NC A&T State University

  • Abebe B Kebede

    • North Carolina A&T State University
    • NC A&T State University