Edge-Oriented MoS2 Nanoporous Films as Flexible Electrodes for Hydrogen Evolution Reactions and Supercapacitor Devices.

Significance Statement

  Research at Rice University reports the creation of a flexible film with the ability to catalyze the production of hydrogen which can be used for energy storage. They have turned molybdenum disulfide’s MoS2 two-dimensional form into a nanoporous film that can catalyze the production of hydrogen or be used for energy storage.      

Figure Credit: Rice University.

Edge-Oriented MoS2 Nanoporous Films as Flexible Electrodes for Hydrogen Evolution Reactions and Supercapacitor Devices

Journal Reference

Adv. Mater. 2014.

Yang, Y., Fei, H., Ruan, G., Xiang, C. and Tour, J. M.

Department of Chemistry, Rice University, Houston, Texas, USA &

Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas, USA &

Department of Materials Science and NanoEngineering, Rice University, Houston, Texas, USA.

ABSTRACT

A simple method to fabricate edge-oriented MoS2 films with sponge-like morphologies is demonstrated. They are directly fabricated through the reaction of sulfur vapor with anodically formed Mo oxide sponge-like films on flexible Mo substrates. The edge-oriented MoS2 film delivers excellent hydrogen evolution reaction (HER) activity with enhanced kinetics and long-term cycling stability. The material also has superior energy-storage performance when working as a flexible, all-solid-state supercapacitor device.

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