Platinum loaded molybdenum thin film: An advanced electrocatalyst for the hydrogen evolution reaction

POSTER

Abstract

In this work, we report the performance of a novel transition metal based electrocatalyst thin film for the hydrogen evolution reaction (HER). A DC magnetron sputter-deposited molybdenum (Mo) thin film with traceable amount of Pt i.e., Pt loaded Mo (Mo-Pt) as an electrocatalyst for the HER in both alkali and acidic media. The Mo-Pt electrocatalyst presents high catalytic activity with low overpotentials of 100 mV and 250 mV to achieve current densities 10 mA cm-2 and 45 mA cm-2, respectively. Differential electrochemical mass spectrometry (DEMS) results show that the Mo-Pt electrocatalyst produced hydrogen at a rate comparable with that of a pristine Pt sample. The Mo-Pt sample was also found to be stable after 1000 cycles of continuous operation, thus, making it durable. Overall, the Mo-Pt electrocatalyst exhibited high catalytic activity and stability towards HER.

*Research at the Elizabeth City State University was supported by Department of national Nuclear Security Administration grant (NA0003979), the Office of Naval Research (N00014-17-1-2331).

Presenters

  • Baleeswaraiah Muchharla

    • Elizabeth City State University

Authors

  • Baleeswaraiah Muchharla

    • Elizabeth City State University

  • Praveen Malali

    • Elizabeth City State University

  • Wei Cao

    • Old Dominion University

  • Hani E. E Elsayed-Ali

    • Old Dominion University

  • Adetayo Adedeji

    • Elizabeth City State University

  • Abdennaceur Karoui

    • North Carolina Central University

  • Kishor Kumar Sadasivuni

    • Qatar University

  • Bijandra Kumar

    • Elizabeth City State University