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520748

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:
Molecular Weight:
122.42
EC Number:
MDL number:
PubChem Substance ID:
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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This Item
6370258.07107348678
Palladium(II) oxide 99.97% trace metals basis

Sigma-Aldrich

520748

Palladium(II) oxide

Cobalt(II,III) oxide nanopowder, <50 nm particle size (TEM), 99.5% trace metals basis

Sigma-Aldrich

637025

Cobalt(II,III) oxide

Palladium foil, thickness 1.0 mm, 99.9% trace metals basis

Sigma-Aldrich

348678

Palladium

form

powder and chunks

form

nanopowder

form

powder

form

foil

mp

870 °C (lit.)

mp

895 °C (dec.) (lit.)

mp

-

mp

1554 °C (lit.)

density

8.7 g/mL at 25 °C (lit.)

density

6.11 g/mL at 25 °C (lit.)

density

-

density

12.02 g/cm3 (lit.)

composition

Pd, 85-87%

composition

-

composition

-

composition

-

reaction suitability

reagent type: catalyst
core: palladium

reaction suitability

-

reaction suitability

reagent type: catalyst
reaction type: Hydrogenations

reaction suitability

-

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

Signal Word

Danger

Hazard Statements

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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A Pd-PdO film potentiometric pH sensor.
V A Karagounis et al.
IEEE transactions on bio-medical engineering, 33(2), 113-116 (1986-02-01)
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
Sylvain Duval et al.
Dalton transactions (Cambridge, England : 2003), 41(11), 3174-3184 (2012-01-31)
Heterometallic cuboidal clusters [Mo(3)S(4)M(H(2)O)(9)Cl](3+) M = Pd or Ni react with the trivacant [AsW(9)O(33)](9-) anion to give tetramodular complexes [(H(2)AsW(9)O(33))(4){Mo(3)S(4)M(H(2)O)(5)}(2)](20-) (M = Pd for anion 2 and M = Ni for anion 3) in good yield. Both anions crystallized as
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
Hongkun He et al.
Molecules (Basel, Switzerland), 15(7), 4679-4694 (2010-07-27)
The preparation of carbon nanotube (CNT)/PdO nanoparticles and graphene oxide (GO)/PdO nanoparticle hybrids via a general aqueous solution strategy is reported. The PdO nanoparticles are generated in situ on the CNTs and GO by a one-step "green" synthetic approach in

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