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520748

Sigma-Aldrich

Palladium(II) oxide

99.97% trace metals basis

Synonym(s):

Palladium monoxide, Palladium oxide

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About This Item

Empirical Formula (Hill Notation):
OPd
CAS Number:
1314-08-5
Molecular Weight:
122.42
EC Number:
215-218-3
MDL number:
MFCD00011172
UNSPSC Code:
12352303
PubChem Substance ID:
24874163
NACRES:
NA.23

Assay

99.97% trace metals basis

form

powder and chunks

composition

Pd, 85-87%

reaction suitability

reagent type: catalyst
core: palladium

mp

870 °C (lit.)

density

8.7 g/mL at 25 °C (lit.)

SMILES string

O=[Pd]

InChI

1S/O.Pd

InChI key

HBEQXAKJSGXAIQ-UHFFFAOYSA-N

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General description

Palladium(II) oxide (PdO) is a p-type semiconductor with a band gap of 2.2-2.7 eV. It is widely used as an efficient catalyst for oxidation reactions of hydrocarbons and for fabrication of gas sensors.

Application

Ceria supported Palladium(II) oxide can be used as a catalyst for ozonation of oxalate, to enhance the degradation of recalcitrant organics in polluted water. PdO provides active sites for the decomposition of ozone to surface atomic oxygen. Itcan be used as a cocatalyst for partial oxidation of alcohols on the WO3catalyst.

Pictograms

Flame over circle
GHS03

Signal Word

Danger

Hazard Statements

H272

Hazard Classifications

Ox. Sol. 2

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000389280
0000389280
MKCW5195
MKCV5543
MKCV2299

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Y J Huang et al.
Chemosphere, 39(13), 2279-2287 (1999-11-27)
Experimentally, decomposition of NO on the alkalized Pd/Al2O3 catalyst is remarkably enhanced at 825-1000 K. The enhancement in N2 yield may be due to the additional basic sites on the alkalized catalyst that can trap NO molecules. However, at T
Hua-Qing Yang et al.
Journal of computational chemistry, 32(16), 3440-3455 (2011-09-16)
The gas-phase reaction mechanism between palladium monoxide and methane has been theoretically investigated on the singlet and triplet state potential energy surfaces (PESs) at the CCSD(T)/AVTZ//B3LYP/6-311+G(2d, 2p), SDD level. The major reaction channel leads to the products PdCH(2) + H(2)O
Young Tack Lee et al.
Nanotechnology, 21(16), 165503-165503 (2010-03-30)
We report on a novel method for the fabrication of highly sensitive hydrogen gas sensors based on palladium oxide thin films and have investigated their hydrogen sensing properties and nanostructures. To our knowledge, this is the first report on the
Qian Liu et al.
Journal of nanoscience and nanotechnology, 7(1), 362-367 (2007-04-26)
The optical reflectance and transmittance of Platinum oxide (PtO(x)) and palladium oxide (PdO(x)) thin films for ultrahigh-density optical storage are investigated using Z-scan technique under irradiation of blue laser (442 nm). The power thresholds of the PtO(x) and PdO(x) decomposition
Qi Li et al.
Environmental science & technology, 43(5), 1534-1539 (2009-04-09)
Removal of arsenic species from water by palladium-modified nitrogen-doped titanium oxide (TiON/PdO) nanoparticles was investigated with and without visible light. For the first time, a high degree of As(III) removal undervisible light illumination was demonstrated on oxide photocatalysts. Over 2
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