English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Preparation of amorphous and nanocrystalline sodium tantalum oxide photocatalysts with porous matrix structure for overall water splitting

Tüysüz, H., & Chen, C. (2013). Preparation of amorphous and nanocrystalline sodium tantalum oxide photocatalysts with porous matrix structure for overall water splitting. NANO ENERGY, 2(1), 116-123. doi:10.1016/j.nanoen.2012.08.003.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Tüysüz, Harun1, Author              
Chen, C.K.2, Author
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Arizona State Univ, Sch Engn Matter Transport & Energy, Mat Sci & Engn Program, Tempe, AZ USA, ou_persistent22              

Content

show
hide
Free keywords: Water splitting; Hydrogen production; Photocatalyst; Porous materials; Nanomaterials; Sodium tantalum oxide
 Abstract: Herein, we report the preparation of a series of surfactant-free nanostructured sodium tantalum oxide using NaTa(OC3H7)6 as a single precursor. The reaction conditions for the novel synthetic method were optimized and the morphology and crystal structure of the prepared materials were investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Condensation and polymerization of NaTa(OC3H7)6 under atmospheric pressure gave a porous amorphous structure that could be converted to crystalline NaTaO3 while crystalline Na2Ta2O6 nanocrystals with a 25 nm average particle size could be obtained from a hydrothermal method using NH3 as a base catalyst. In addition, the photocatalytic behaviors of the prepared materials were investigated for overall water splitting into hydrogen and oxygen. Unexpectedly, porous amorphous sodium tantalum oxide showed much better catalytic activity over the crystalline one. The synthesized Na2Ta2O6 nanocrystals also indicated promising activity for overall water splitting without any co-catalyst in comparison to bulk NaTaO3

Details

show
hide
Language(s):
 Dates: 2013-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.nanoen.2012.08.003
ISSN: 2211-2855
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: NANO ENERGY
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 2 (1) Sequence Number: - Start / End Page: 116 - 123 Identifier: -