SEM and/or TEM are not performed on this product. However, studies have been published by other researcher using both SEM and TEM analysis. Please see the link below to review one such publication:
Interaction of hydrogen with ZnO nanopowders—evidence of hydroxyl group formation
https://iopscience.iop.org/article/10.1088/0957-4484/23/1/015705/pdf
544906
氧化锌
nanopowder, ≤50 nm particle size
别名:
Zinc monoxide, Zinc white
并加购，请在购物车里查看协议价、货期和发货地。
选择规格
变更视图
| 规格/货号 | 是否有货 | 价格 |
|---|---|---|
10 g | 请联系客服了解存货情况 | $96.80 |
50 g | 请联系客服了解存货情况 | $266.00 |
请联系客服了解存货情况 | $273.00 |
关于此项目
线性分子式:
ZnO
化学文摘社编号:
分子量:
81.39
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-222-5
MDL number:
assay
~80% Zn basis
Quality Segment
form
nanopowder
composition
ZnO
reaction suitability
core: zinc
surface area
10-25 m2/g
particle size
≤50 nm
application(s)
glass & ceramic
perovskite solar cells
SMILES string
O=[Zn]
InChI
1S/O.Zn
InChI key
XLOMVQKBTHCTTD-UHFFFAOYSA-N
General description
氧化锌（ZnO）纳米粉是一种金属氧化物，是一种带隙为3.37 eV的n型直接带隙半导体材料。其性质包括高化学稳定性、光稳定性和高电化学耦合系数。它被归类为II-VI类半导体，其键能为60 meV，在环境温度下具有很高的热机械稳定性。
Application
ZnO纳米粉可用于多种应用，例如催化剂、光学材料、紫外线吸收剂、气体传感器和化妆品。
用于制备NaZnSiO3OH，一种新型手性骨架材料，其在离子交换、吸附或催化方面具有潜在的应用价值。
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此商品 | |||
|---|---|---|---|
| reaction suitability core: zinc | reaction suitability - | reaction suitability - | reaction suitability core: zinc |
| assay ~80% Zn basis | assay >97% | assay 99-100.5% (calc. for dried substance) | assay 99.99% trace metals basis |
| form nanopowder | form nanopowder | form powder | form powder |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| particle size ≤50 nm | particle size <50 nm (BET) | particle size - | particle size - |
| surface area 10-25 m2/g | surface area >10.8 m2/g | surface area - | surface area - |
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
存储类别
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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What are its Characterization SEM , TEM etc
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Does this nanopowder consist of spherical particles?
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The particle size of this material is ? 50 nm. However, the spherical morphology is not verified.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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May I know its band gap value?
1 answer-
The band gap value of this material has not been determined. However, information available in the literature suggests this semiconducting material demonstrates a band gap of 3.37 eV at room temperature. Please refer to the link below to review additional information:
https://www.sciencedirect.com/science/article/pii/S003810982030661X#:~:text=The%20band%20gap%20of%20bulk,at%20room%20temperature%20%5B6%5D.Helpful?
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How the ZnO nanoparties product 544906 is synthesised?
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The method of synthesis is considered proprietary. The shareable information for this product can be found on the product page, COA, and SDS.
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Please tell me the "Purity" of the ZnO powder, Product number: 544906?
1 answer-
The purity of this product is measured by the Zinc content. The compound is approximately 80% Zn as stated in the 'PROPERTIES' section in 'Assay'.
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