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Sigma-Aldrich

Palladium(II) oxide

99.97% trace metals basis

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Synonym(s):
Palladium monoxide, Palladium oxide
Empirical Formula (Hill Notation):
OPd
CAS Number:
1314-08-5
Molecular Weight:
122.42
EC Number:
215-218-3
MDL number:
MFCD00011172
PubChem Substance ID:
24874163
NACRES:
NA.23

Quality Level

100

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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Tao Zhang et al.
Environmental science & technology, 45(21), 9339-9346 (2011-10-06)
The cerium supported palladium oxide (PdO/CeO(2)) at a low palladium loading was found very effective in catalytic ozonation of oxalate, a probe compound that is difficult to be efficiently degraded in water with hydroxyl radical oxidation and one of the
Bas L M Hendriksen et al.
Nature chemistry, 2(9), 730-734 (2010-08-24)
Atomic steps at the surface of a catalyst play an important role in heterogeneous catalysis, for example as special sites with increased catalytic activity. Exposure to reactants can cause entirely new structures to form at the catalyst surface, and these
Simon Penner et al.
Physical chemistry chemical physics : PCCP, 9(19), 2428-2433 (2007-05-12)
The oxidation of pure V(2)O(3) and Pd/V(2)O(3) films was studied by Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED) in the temperature range 673-773 K. Thin films of V(2)O(3) were prepared by reactive deposition of V metal in
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
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