File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher


Ryu, Jungki
Bioinspired Functional Materials Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Facile method to synthesize water oxidation catalyst from polyoxometalate for solar energy storage system

Han, YujinRyu, JungkiOh, HyunmyungJeon, Dasom
Issued Date
한국재료학회 2017 춘계학술대회
Water oxidation is the key to efficient conversion of solar energy to chemical fuels in artificial photosynthesis since it can provide electrons and protons for further chemical reactions. To promote electron transfer across the solid-electrolyte interface (SEI), water oxidation catalysts (WOCs) are often introduced on semiconducting photoanodes to facilitate the four-electron water oxidation reaction. Here, we report a simple method to synthesize efficient and stable WOCs through simple heat treatment of polyoxometalates (POMs). Amorphous and crystalline transition metal tungstate nanoparticles were readily formed by heat treatment of transition metal substituted polyoxometalate at 400 and 500 oC, respectively. It was found that amorphous metal tungstates have a higher catalytic activity than crystalline ones and can be readily deposited on a photoelectrode by simple annealing process. We believe that this results provide a simple and universal method to synthesize and deposit WOCs on photoelectrode for stable and improved water oxidation reaction.


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.