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633097

Sigma-Aldrich

Silicon

nanopowder, <100 nm particle size (TEM), ≥98% trace metals basis

Synonym(s):

Silicon anode material

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About This Item

Linear Formula:
Si
CAS Number:
7440-21-3
Molecular Weight:
28.09
EC Number:
231-130-8
MDL number:
MFCD00085311
UNSPSC Code:
12352302
PubChem Substance ID:
24882537
NACRES:
NA.23
Pricing and availability is not currently available.

Assay

≥98% trace metals basis

form

nanopowder

particle size

<100 nm (TEM)

bp

2355 °C (lit.)

mp

1410 °C (lit.)

density

2.33 g/mL at 25 °C (lit.)

SMILES string

[Si]

InChI

1S/Si

InChI key

XUIMIQQOPSSXEZ-UHFFFAOYSA-N

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General description

Our battery-grade silicon nanopowder features a 100 nm particle size with a purity of 98%. This light grey powder is a highly sought-after material for advanced battery research and development due to its exceptional electrochemical properties. It has a high specific surface area, allowing for better electrochemical performance, and its small particle size ensures excellent dispersion within battery electrode formulations. With consistent particle size and high purity, this silicon nanopowder is an excellent choice for battery researchers and manufacturers looking to enhance the performance of their lithium-ion batteries.

Application

Our silicon nanopowder is a highly versatile material with applications in various fields such as energy storage, biomedical, and electronics industries. Its exceptional electrochemical properties make it a highly sought-after material for the development of advanced lithium-ion batteries. The small particle size and high specific surface area of our battery-grade silicon nanopowder make it an excellent candidate for use in the anode of lithium-ion batteries. The high-capacity lithium-ion batteries utilizing silicon nanopowder anodes have the potential to achieve greater energy density and longer cycle life compared to traditional graphite anodes. Furthermore, its high purity and consistent particle size make it a reliable material for battery researchers and manufacturers.

Features and Benefits

This battery-grade silicon nanopowder ensures excellent dispersion within battery electrode formulations due to its small particle size.
  • Superior Dispersion
  • High Specific Surface Area
  • Improved Mechanical Stability
  • Enhanced Performance

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 2

Storage Class Code

4.1B - Flammable solid 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
MKCW2329
MKCV0568
MKCR2401
MKCP8819
MKCP6299

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Silica

Zhenhui Kang et al.
Nanoscale, 3(3), 777-791 (2010-12-17)
Owing to their abundant unique properties and ready compatibility with Si microelectronic technology, Si nanostructures are becoming one of the most important classes of nano semiconductors. Particularly, small-sized Si nanoparticles possess distinctive photoluminescence (PL), biocompatibility, and active surface properties. In
Yuki Kobayashi et al.
Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 19(5), 176-176 (2017-06-06)
Si and its oxide are nonpoisonous materials, and thus, it can be taken for medical effects. We have developed a method of generation of hydrogen by use of reactions of Si nanopowder with water in the neutral pH region. Si
High temperature Boron-based thermoelectric materials
Mori T
Material Matters, 4, 37-37 (2009)
Pil Ju Ko et al.
Journal of nanoscience and nanotechnology, 13(4), 2451-2460 (2013-06-15)
The physical properties of porous materials are being exploited for a wide range of applications including optical biosensors, waveguides, gas sensors, micro capacitors, and solar cells. Here, we review the fast, easy and inexpensive electrochemical anodization based fabrication porous silicon
Seungil Park et al.
Journal of nanoscience and nanotechnology, 13(5), 3397-3402 (2013-07-19)
We investigated the thin film growths of hydrogenated silicon by hot-wire chemical vapor deposition with different flow rates of SiH4 and H2 mixture ambient and fabricated thin film solar cells by implementing the intrinsic layers to SiC/Si heterojunction p-i-n structures.
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Questions

1–3 of 3 Questions  

  1. 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

      Helpful?

  2. 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

      Helpful?

  3. what technique is used to produce this powder (nano Si 100nm)? Gas phase? laser or plasma?

    1 answer

    1. The method of preparation is considered proprietary.

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