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Platinum(IV) oxide (
) nanopowder, commonly known as Adams' catalyst, is a high-surface-area, brown-black powder used primarily as a potent hydrogenation and oxidation catalyst in organic synthesis, pharmaceutical, and electronic industries. It often exists as a hydrate (
) and, due to its nanoscale size, provides high catalytic efficiency for hydrogen absorption and reduction reactions, often serving as a precursor to platinum black in situ.
Key Properties
- Appearance: Dark brown-black, fine powder or nanocrystals.
- Particle Size: Typically <100 nm (also available in 20-80 nm range).
- Purity: Available in high purities, typically 99.5+% to 99.999%.
- Surface Area: Roughly 80 for standard Adams' catalyst.
- Density: $\simcm^3$.
- Solubility: Insoluble in water and cold aqua regia, but soluble in hot acids and caustic potash solutions.
- Thermal Stability: Decomposes at approximately 450°C–500°C.
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Web results
Platinum Oxide (PtO2) Nanopowder /Nanoparticles, Purity
powdernano.com
https://powdernano.com › product › platinum-pt-nanop...
powdernano.com
https://powdernano.com › product › platinum-pt-nanop...
Platinum oxide nanopowder is an indispensable material in catalysis, energy storage, fuel cells, and environmental protection, offering exceptional performance ...Read more
$1,372.23In stock
Platinum Oxide (PtO2) Nanopowder/Nanoparticles, Purity
nanomaterialpowder.com
https://nanomaterialpowder.com › nano › platinum-oxi...
nanomaterialpowder.com
https://nanomaterialpowder.com › nano › platinum-oxi...
Platinum Oxide (PtO2) Nanopowder/Nanoparticles, Purity: 99.5+%, Size: <100 nm. €210.00 – €838.00. Quantity. Choose an option ...Read more
In stock
Platinum Oxide (PtO2) Nanopowder/Nanoparticles, Purity
Nanografi Advanced Materials
https://shop.nanografi.com › nanoparticles › platinum-ox...
Nanografi Advanced Materials
https://shop.nanografi.com › nanoparticles › platinum-ox...
Platinum Oxide (PtO2) Nanopowder/Nanoparticles is generally used as a catalyst for oxidation of sugars, hydrogenation reactions, hydroxycyclopropanation ...
High Purity PtO2 Nanopowder Nano Platinic Oxide Particle
Hongwu International Group Ltd
https://www.hwnanomaterial.com › high-purity-pto2-na...
Hongwu International Group Ltd
https://www.hwnanomaterial.com › high-purity-pto2-na...
Nano Platinic oxide Particle is good as hydrogenation catalyst. Hongwu Nano customizes high purity PtO2 nanopowder with particle size from 20nm--1um, 99.95% ...
Matexcel NMP-1079 Platinum Oxide (PtO2) Nanopowder
MatWeb
https://www.matweb.com › search › datasheettext
MatWeb
https://www.matweb.com › search › datasheettext
NMP-1079; Platinum Oxide (PtO2) Nanopowder; Metal Powder; Nanopowder; micro powder. Morphology: Powder. Key Words: Synonyms: Platinum Oxide (PtO2) Nanopowder.
Platinum Oxide Nanoparticles / Nanopowder
American Elements
https://www.americanelements.com › platinum-oxide-na...
American Elements
https://www.americanelements.com › platinum-oxide-na...
Platinum Oxide Nanopowder or Nanoparticles, nanodots or nanocrystals are spherical or faceted high surface area oxide magnetic nanostructured particles.Read more
Platinum Oxide (PtO2) Nanopowder/Nanoparticles, Purity ... - Store
Nanochemazone
https://store.nanochemazone.com › product › platinum-...
Nanochemazone
https://store.nanochemazone.com › product › platinum-...
Platinum Oxide (PtO2) Nanopowder/Nanoparticles, Purity: 99.5+%, Size: <100 nm. 1 gram/140 € 5 grams/559 €. Please contact us for quotes on larger quantities ...
Adam's catalyst / PtO2 batch sizes & ratios
Gold Refining & Metal Extraction Forum
https://goldrefiningforum.com › threads › adams-cataly...
Gold Refining & Metal Extraction Forum
https://goldrefiningforum.com › threads › adams-cataly...
Nov 26, 2012 — If a considerable quantity of platinum oxide is desired it is more satisfactory to prepare several runs of the size indicated than one large run.Read more
Platinum(IV) oxide 99.9 trace metals 12137-21-2
Sigma-Aldrich
https://www.sigmaaldrich.com › Products › Catalysts
Sigma-Aldrich
https://www.sigmaaldrich.com › Products › Catalysts
Platinum(IV) oxide monohydrate 99.9% trace metals basis; CAS Number: 12137-21-2; EC Number: 215-223-0; Linear Formula: PtO2·H2O at Sigma-Aldrich.
$297.00In stock$25.24 delivery
Roles of catalytic PtO2 nanoparticles on nitric oxide ...
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
by S Singkammo2018Cited by 34 — The gas-sensing test results showed that PtO2 loading on SnO2 nanoparticles at a very low content of 0.2 wt% led to a drastically enhanced ...Read more
