541206
Potassium niobate
Synonym(s):
Niobium potassium oxide (KNbO3 ), Potassium metaniobate, Potassium niobium trioxide
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About This Item
Linear Formula:
KNbO3
CAS Number:
Molecular Weight:
180.00
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
234-744-4
MDL number:
form
powder
SMILES string
[K+].[O-][Nb](=O)=O
InChI
1S/K.Nb.3O/q+1;;;;-1
InChI key
UKDIAJWKFXFVFG-UHFFFAOYSA-N
General description
Potassium niobate (KNbO3, KN) is a perovskite-type well-known ferroelectric material with a wide range of applications in electromechanical, nonlinear optical, frequency doubler, and holographic storage system applications. Single crystal of a KNbO3 is known to have high piezoelectric activity because of its high electromechanical coupling factors. Therefore KN materials have received much interest in the development of lead-free piezoelectric materials.
Application
Potassium niobate can be used to prepare bismuth sodium titanate(BNT)-KN ceramics (BNT–KN ceramics) by the mixed oxide method. The addition of KN to the BNT system increases the dielectric and piezoelectric properties of the BNT-KN ceramics. These properties of the ceramic system are suitable for the development of lead-free capacitors. Cu dopped KNbO3 single crystals also found application in semiconductor laser technology because Cu doping resulted in electronic states with near-infrared absorption bands.
Storage Class
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Regulatory Information
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Articles
A significant limiting factor for wearable electronics and wireless sensors is the finite amount of energy that can be stored in on-board batteries.
Among various ceramics, one-dimensional (1-D) piezoelectric ceramics have attracted significant scientific attention for use in energy harvesting.
Phase formation and electrical properties of lead-free bismuth sodium titanate-potassium niobate ceramics
Pengpat K, et al.
Current Applied Physics, 8(3-4), 241-245 (2008)
Seungwook Kim et al.
Journal of the American Chemical Society, 135(1), 6-9 (2012-12-14)
We report the synthesis of KNbO(3) nanowires (NWs) with a monoclinic phase, a phase not observed in bulk KNbO(3) materials. The monoclinic NWs can be synthesized via a hydrothermal method using metallic Nb as a precursor. The NWs are metastable
Teruyuki Nakato et al.
ACS applied materials & interfaces, 4(8), 4338-4347 (2012-08-02)
We investigated emulsions stabilized with particles of layered hexaniobate, known as a semiconductor photocatalyst, and photocatalytic degradation of dyes in the emulsions. Hydrophobicity of the niobate particles was adjusted with the intercalation of alkylammonium ions into the interlayer spaces to
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 541206-25G | 04061832567037 |