Sitemap     |     CAS     |     Chinese
Search
Introduction  
  Brief Introduction
Presidents
Location Map
Administration
 
  Location: Home > Research results
Melamine-assisted to fabricate pure α-Fe2O3 polyhedron with high-index facet exposed as an effective photoelectrode
Close
Text Size: A A A
Print

Abstract: Introducing high-index facet into crystals is a promising way to provide additional catalytically active sites for boosting intrinsic activity. This work presents a simple one-pot annealing way to fabricate highly photoactive pristine polyhedral alpha-Fe2O3 single crystal, using melamine as solvent and coordination agent. The HR-TEM results realized that the as-prepared sample was enclosed by high-index (116} facet, which was always not presented in traditional hydrothermal method. The photoelectrochemical (PEC) measurements have been carried out and showed that the polyhedron samples exhibited significantly enhancement in the photocurrent density, which is nearly 28 times higher than that of the alpha-Fe2O3 prepared without melamine under the same conditions. Our work may guide future designs for high index crystal facet exposed of metal oxides and suggest paths for further improvements to allow technological development and use.

 

KeyWords Plus: ENHANCED PHOTOCATALYTIC ACTIVITY; LITHIUM-ION BATTERY; WATER OXIDATION; VISIBLE-LIGHT; ENERGY-STORAGE; CATALYTIC PERFORMANCE; CERIA NANORODS; HEMATITE; OXIDE; FILMS  

Published in JOURNAL OF POWER SOURCES, 343 94-102; 10.1016/j.jpowsour.2017.01.035 MAR 1 2017 

Copyright © 2005-2008, lanzhou Branch;Chinese Academy of Sciences
E-mail:lzb@lzb.ac.cn Tel:2198855 Fax:8279855
In Lz city Tsr 2
site statistics :