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Sigma-Aldrich

Nickel(II) oxide

greener alternative

nanopowder, <50 nm particle size (TEM), 99.8% trace metals basis

Synonym(s):

Nickel monooxide, Nickelous oxide

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25 G
$81.20
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$221.00

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Estimated to ship onApril 23, 2026FromMILWAUKEE

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25 G
$81.20
100 G
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About This Item

Linear Formula:
NiO
CAS Number:
1313-99-1
Molecular Weight:
74.69
EC Number:
215-215-7
MDL number:
MFCD00011145
UNSPSC Code:
12352302
PubChem Substance ID:
24882831
NACRES:
NA.23

$81.20

Estimated to ship onApril 23, 2026FromMILWAUKEE

Request a Bulk Order

Quality Level

100

assay

99.8% trace metals basis

form

nanopowder

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

color

green to black

particle size

<50 nm (TEM)

density

6.67 g/mL at 25 °C (lit.)

bulk density

0.51 g/mL

application(s)

battery manufacturing

greener alternative category

Enabling

SMILES string

[Ni]=O

InChI

1S/Ni.O

InChI key

GNRSAWUEBMWBQH-UHFFFAOYSA-N

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General description

Nickel(II) oxide (NiO) is a metal oxide based nanomaterial with a good semiconducting property. Nanosized nickel oxide can be found in a variety of morphologies which include nanoflowers, spheres, wires, and tubes. It exhibits high performance in applications which require charge transfer and charge transport based processes. It can be prepared by a variety of physical and thermal methods such as sol-gel, hydrothermal and solvothermal techniques.[1][2]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and is intended for Molecular Solar Thermal Energy Storage Systems (MOST). Click here for more information.

Application

NiO can be used for a variety for energy and coating based applications such as lithium ion batteries,[3] solar cells,[4] electrochromic coatings,[5] semiconducting films,[6] and gas based sensors.[7]

pictograms

Health hazardExclamation mark
GHS08,GHS07

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Danger

Hazard Classifications

Aquatic Chronic 4 - Carc. 1A Inhalation - Skin Sens. 1 - STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS6153
MKCC7153
MKCD6764
MKCC1162
MKBX7741V

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A p-type NiO-based dye-sensitized solar cell with an open-circuit voltage of 0.35 V
Gibson EA, et al.
Angewandte Chemie (International ed. in English), 48(24), 4402-4405 (2009)
A novel precursor in preparation and characterization of nickel oxide nanoparticles via thermal decomposition approach
Salavati-Niasari M, et al.
Journal of alloys and compounds, 493(1-2), 163-168 (2010)
Fabrication of NiO nanowall electrodes for high performance lithium ion battery
Varghese B, et al.
Chemistry of Materials, 20(10), 3360-3367 (2008)
PbS-NiO nanocomposite material with enhanced magnetic, photocatalytic and antifungal properties
Suganya M, et al.
Materials Science and Engineering, B, 229(1), 118-125 (2018)
Hierarchical NiO hollow microspheres assembled from nanosheet-stacked nanoparticles and their application in a gas sensor
Zhu G, et al.
Royal Society of Chemistry Advances, 2(10), 4236-4241 (2012)
View All Related Papers

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Advances in Materials for Solid Oxide Fuel Cells

As with all types of fuel cells, a Solid Oxide Fuel Cell (SOFC) is capable of efficiently transforming chemical energy into electrical energy.

Self-Propagating Reactions Induced by Mechanical Alloying

An article concerning self-propagating reactions induced by mechanical alloying, presented by Sigma-Aldrich.com.

Soft Magnetic Nanocrystalline Alloys: Materials

Magnetic materials find diverse applications from data storage to renewable energy.

Questions

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  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

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  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

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