Unfortunately, the surface charge has not been determined for these nanoparticles.
544841
Cerium oxide
nanopowder, <25 nm particle size (BET)
別名:
酸化セリウム, 酸化セリウム、セリア
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この商品について
化学式:
CeO2
CAS番号:
分子量:
172.11
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
26111700
EC Number:
215-150-4
MDL number:
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製品名
酸化セリウム(IV), nanopowder, <25 nm particle size (BET)
InChI key
CETPSERCERDGAM-UHFFFAOYSA-N
InChI
1S/Ce.2O
SMILES string
O=[Ce]=O
form
nanopowder
reaction suitability
reagent type: catalyst
core: cerium
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
particle size
<25 nm (BET)
density
7.13 g/mL at 25 °C (lit.)
application(s)
battery manufacturing
greener alternative category
Quality Level
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関連するカテゴリー
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当該品目 | 211575 | 22390 | 700290 |
|---|---|---|---|
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form nanopowder | form powder | form solid | form nanopowder |
| application(s) battery manufacturing | application(s) - | application(s) - | application(s) - |
| reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst | reaction suitability - | reaction suitability - |
| greener alternative product characteristics Design for Energy Efficiency | greener alternative product characteristics Design for Energy Efficiency | greener alternative product characteristics Design for Energy Efficiency | greener alternative product characteristics Design for Energy Efficiency |
| sustainability Greener Alternative Product | sustainability Greener Alternative Product | sustainability Greener Alternative Product | sustainability Greener Alternative Product |
Application
CeO2をCuO/TiO2に添加すると、比表面積が増加し、高温での焼結と細孔径の拡大が抑制されます。
CeO2ナノパウダーは、そのイオン伝導性と高温安定性から、固体酸化物形燃料電池（SOFC）に利用されています。また、電池やスーパーキャパシタの性能向上にも使用されています。さらに、CeO2はガラス産業や半導体産業において研磨剤としても使用されています。その微粒子と硬度は光学部品の優れた表面仕上げを容易に実現します。
General description
酸化セリウム（IV）（CeO₂）は、酸化セリウム（III）、セリア、二酸化セリウムとも呼ばれ、希土類金属セリウムの酸化物です。白色から黄色のナノパウダーで、粒子径は25nm未満（BET法）で、高い表面積と反応性を示します。触媒、電気化学用途、ガラスやセラミックスなど、様々な用途に使用されています。CeO₂は自動車用触媒コンバーターに広く採用されており、有害物質の排出削減に貢献しています。さらに、先端セラミックスの製造、ガラス研磨、様々な化学反応の触媒としても使用されています。その独特な物理的および化学的特性により、光学部品、電池技術、原子力利用、セラミック、ガラス、オプトエレクトロニクス、冶金学、熱ルミネセンス線量計、触媒作用、環境研究、および生物医学用途での使用に適しています。[1]
当社は、グリーンケミストリーの 12 原則の 1 つ以上に則った、より環境に配慮した製品（グリーン代替品）をお客様にお届けできるよう最善の努力をします。本製品は分子太陽熱エネルギー貯蔵システム（MOST）向けに開発されたもので、エネルギー効率が向上しています。詳細はこちらをクリックしてください。
当社は、グリーンケミストリーの 12 原則の 1 つ以上に則った、より環境に配慮した製品（グリーン代替品）をお客様にお届けできるよう最善の努力をします。本製品は分子太陽熱エネルギー貯蔵システム（MOST）向けに開発されたもので、エネルギー効率が向上しています。詳細はこちらをクリックしてください。
Legal Information
Engi-Mat社製
保管分類
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Dengsong Zhang et al.
Nanoscale, 5(3), 1127-1136 (2013-01-04)
The MnO(x) and CeO(x) were in situ supported on carbon nanotubes (CNTs) by a poly(sodium 4-styrenesulfonate) assisted reflux route for the low-temperature selective catalytic reduction (SCR) of NO with NH(3). X-Ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM)
Gao Li et al.
Chemical communications (Cambridge, England), 48(98), 12005-12007 (2012-11-07)
The Au(25)(SR)(18)/CeO(2) nanocluster catalyst showed high activity in the homocoupling of aryl iodides (e.g. up to 99.8% yield with iodobenzene) and excellent recyclability.
Cecilia Mondelli et al.
Chimia, 66(9), 694-698 (2012-12-06)
The heterogeneously catalyzed gas-phase oxidation of HCl to Cl(2) offers an energy-efficient and eco- friendly route to recover chlorine from HCl-containing byproduct streams in the chemical industry. This process has attracted renewed interest in the last decade due to an
Hailong Li et al.
Journal of hazardous materials, 243, 117-123 (2012-11-08)
MnO(x)-CeO(2) mixed-oxide supported on TiO(2) (Mn-Ce/Ti) was synthesized by an ultrasound-assisted impregnation method and employed to oxidize elemental mercury (Hg(0)) at 200°C in simulated coal combustion flue gas. Over 90% of Hg(0) oxidation was achieved on the Mn-Ce/Ti catalyst at
Vishal Shah et al.
PloS one, 7(10), e47827-e47827 (2012-10-31)
Cerium oxide nanoparticles have found numerous applications in the biomedical industry due to their strong antioxidant properties. In the current study, we report the influence of nine different physical and chemical parameters: pH, aeration and, concentrations of MgSO(4), CaCl(2), KCl
資料
Hydrogen is one of the most important resources in providing food, fuel, and chemical products for our everyday life. Sustainable catalytic hydrogen production from bioethanol has gained significant attention in recent years due to globally diminishing fossil fuel supplies, which have necessitated the search for new chemical feedstocks.
As with all types of fuel cells, a Solid Oxide Fuel Cell (SOFC) is capable of efficiently transforming chemical energy into electrical energy.
固体酸化物形燃料電池用材料の現状と今後について解説していただきました。
バイオエタノールからの持続可能な水素製造は、化石燃料供給が減少する中で牽引役となっています。
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What is the charge of these nanoparticles?
1 回答-
役に立ちましたか？
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How can I determine the shelf life / expiration / retest date of this product?
1 回答-
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/418/501/product-dating-information-06-25-mk.pdf役に立ちましたか？
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 回答-
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
役に立ちましたか？
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酸化セリウムnanopowder（544841）を水に分散させると、透明な黄緑色の均一な分散液になりますでしょうか？
1 回答-
This product is available as a 10% dispersion in water under product number 643009. The appearance is an off-white liquid. The clarity is not a specification. However, this material is insoluble in water and is not expected to be a clear solution. Note that product 289744 is an unrelated dispersion of Cerium (IV) oxide in acidified water. The appearance of this item is listed as a yellow-orange liquid. Please see the links below to review a sample or lot-specific Certificate of Analysis for each item.
643009
https://www.sigmaaldrich.com/product/aldrich/643009#product-documentation289744
https://www.sigmaaldrich.com/product/aldrich/289744#product-documentation役に立ちましたか？
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ライフサイエンス、有機合成、材料科学、クロマトグラフィー、分析など、あらゆる分野の研究に経験のあるメンバーがおります。.
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