Issue 5, 2017

Highly active, durable and pH-universal hybrid oxide nanocrystals for efficient oxygen evolution

Abstract

The development of an active, durable, and low-cost catalyst remains hitherto a grand challenge in energy conversion technologies. Herein, hybrid Ptx–NiMnO3 nanocrystals (NCs) (x = 0.1, 0.5, and 1.0 mM) were synthesized by a modified citrate-gel approach and utilized as efficient catalysts towards the oxygen evolution reaction (OER). The results showed that the size of Ptx–NiMnO3 NCs decreases with increasing the initial concentration of Pt. Meanwhile, the OER activity and durability of the as-synthesized Pt–NiMnO3 under different pH conditions are found to be Pt-content-dependent. Particularly, Pt1–NiMnO3 showed superior OER efficiency relative to its counterparts Pt0.5–NiMnO3, Pt0.1–NiMnO3, NiMnO3, and commercial Pt/C at different pH values, ascribed to the size, morphology, and composition effects as confirmed via XRD, XPS and electrochemical characterization.

Graphical abstract: Highly active, durable and pH-universal hybrid oxide nanocrystals for efficient oxygen evolution

Supplementary files

Article information

Article type
Paper
Submitted
24 Feb 2017
Accepted
08 Apr 2017
First published
10 Apr 2017

Sustainable Energy Fuels, 2017,1, 1123-1129

Highly active, durable and pH-universal hybrid oxide nanocrystals for efficient oxygen evolution

Y. H. Ahmad, K. A. Eid, S. Y. AlQaradawi and N. K. Allam, Sustainable Energy Fuels, 2017, 1, 1123 DOI: 10.1039/C7SE00111H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements