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773875

Sigma-Aldrich

Platinum, nanoparticle dispersion

3 nm particle size, 1,000 ppm in H2O, 99.99% trace metals basis

Synonym(s):

Platinum colloid, Pt NP, Pt dispersion

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About This Item

Empirical Formula (Hill Notation):
Pt
Molecular Weight:
195.08
MDL number:
MFCD00011179
UNSPSC Code:
12352302
PubChem Substance ID:
329767643
NACRES:
NA.23
Pricing and availability is not currently available.

Assay

99.99% trace metals basis

form

dispersion
nanoparticle

reaction suitability

reagent type: catalyst
core: platinum

concentration

1,000 ppm in H2O

particle size

3 nm

density

0.997 g/mL at 25 °C

SMILES string

[Pt]

InChI

1S/Pt

InChI key

BASFCYQUMIYNBI-UHFFFAOYSA-N

Related Categories

Application

Platinum nanoparticles are used in several important catalytic applications including fuel cells [1] and photocatalysts[2]. Platinum nanocrystal arrays have also been studied as nonvolatile memory systems[3].

WGK

nwg

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW9180
MKCV6766
MKCS6466
MKCP3801
MKCK9962

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Lee; C.;
Journal of Electronic Materials, 34, 1-11 (2005)
Yongyan Mu et al.
The journal of physical chemistry. B, 109(47), 22212-22216 (2006-07-21)
We report a novel process to prepare well-dispersed Pt nanoparticles on CNTs. Pt nanoparticles, which were modified by the organic molecule triphenylphosphine, were deposited on multiwalled carbon nanotubes by the organic molecule, which acts as a cross linker. By manipulating
L Martinaga Pintarić et al.
Polymers, 12(6) (2020-05-30)
In this research, a textile surface was modified by the sol-gel methodology with a new antimicrobial coating containing nanoparticles active against bacteria resistant to antibiotics. The effect of ultrasonic irradiation power (40 to 90 kHz), the concentration of reagents (nanoparticles
Wang; X.;
Chemistry (Weinheim An Der Bergstrasse, Germany), 11, 2997-3004 (2005)

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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Is there an explanation for the presence of chlorine in the solution of the product? It is observed that a large amount of chlorine indicated in the EDS spectrum after placing it in the TEM. Could this be attributed to the precursor materials?

    1 answer

    1. During the production process, the nano-platinum powder needs to be completely dispersed into platinum water. The dispersant used contains chlorine, which cannot be avoided.

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