ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
1/1
5 files

Direct Observation of Ni–Mo Catalyst Formation via Thermal Reduction of Nickel Molybdate Nanorods

preprint
revised on 14.05.2020, 21:14 and posted on 15.05.2020, 10:38 by Rituja Patil, Stephen House, Aayush Mantri, Judith C. Yang, James McKone
Ni-Mo composites are known to catalyze several industrial relevant reactions involving hydrogen. Our interest is in Ni-Mo composites for hydrogen evolution reaction in alkaline anion exchange membrane water electrolyzers. We recently found that Ni-Mo composites comprise of core-shell structure where the core is metallic, rich in Ni while the shell is Mo-rich oxide. The transformation of the oxide intermediate into a core-shell architecture is studied in this work using in situ transmission electron microscopy. We reduced nickel molybdate nanorods in environmental transmission electron microscope and observed its transformation into the Ni-Mo catalyst composite. We further correlated these chemical transformations with the observed hydrogen evolution activity.

History

Email Address of Submitting Author

rbp25@pitt.edu

Institution

University of Pittsburgh

Country

United States

ORCID For Submitting Author

0000-0001-5037-448X

Declaration of Conflict of Interest

No conflict of interest

Exports