This report describes a new route to synthesize single-crystalline manganese-containing spinel nanowires (NWs) by a two-step hydrothermal and solid-state synthesis. Interestingly, a nanowire or nanorod morphology is maintained during conversion from MnO2/MnOOH to CuMn2O4/Mg2MnO4, despite the massive structural rearrangement this must involve. Linear sweep voltammetry (LSV) curves of the products give preliminary demonstration that CuMn2O4 NWs are catalytically active towards the oxygen evolution reaction (OER) in alkaline solution, exhibiting five times the magnitude of current density found with pure carbon black.
|Number of pages||7|
|Journal||Journal of Solid State Chemistry|
|State||Published - Aug 1 2016|
Bibliographical noteFunding Information:
This work was supported by the National Science Foundation under award 1355438 and NASA Kentucky under NASA award NNX10AL96H . In addition, we thank Dr. Kenneth Graham and Zhiming Liang for assistance collecting XPS data, and the Kentucky Geological Survey and the UK Electron Microscopy Center for use of their facilities for characterization.
© 2016 Elsevier Inc.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry