e-space
Manchester Metropolitan University's Research Repository

Precious Metal-Free Nickel Nitride Catalyst for the Oxygen Reduction Reaction.

Kreider, Melissa E, Gallo, Alessandro, Back, Seoin, Liu, Yunzhi, Siahrostami, Samira, Nordlund, Dennis, Sinclair, Robert, Nørskov, Jens K, King, Laurie A ORCID logoORCID: https://orcid.org/0000-0002-0772-2378 and Jaramillo, Thomas F (2019) Precious Metal-Free Nickel Nitride Catalyst for the Oxygen Reduction Reaction. ACS Applied Materials and Interfaces, 11 (30). pp. 26863-26871. ISSN 1944-8244

[img]
Preview
Accepted Version
Download (885kB) | Preview

Abstract

With promising activity and stability for the oxygen reduction reaction (ORR), transition metal nitrides are an interesting class of non-platinum group catalysts for polymer electrolyte membrane fuel cells. Here, we report an active thin-film nickel nitride catalyst synthesized through a reactive sputtering method. In rotating disk electrode testing in a 0.1 M HClO4 electrolyte, the crystalline nickel nitride film achieved high activity and selectivity to four-electron ORR. It also exhibited good stability during 10 and 40 h chronoamperometry measurements in acid and alkaline electrolyte, respectively. A combined experiment-theory approach, with detailed ex situ materials characterization and density functional theory calculations, provides insight into the structure of the catalyst and its surface during catalysis. Design strategies for activity and stability improvement through alloying and nanostructuring are discussed.

Impact and Reach

Statistics

Activity Overview
6 month trend
537Downloads
6 month trend
215Hits

Additional statistics for this dataset are available via IRStats2.

Altmetric

Actions (login required)

View Item View Item