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901019

Sigma-Aldrich

多层碳纳米管

50-90 nm diameter, >95% carbon basis

同義詞:

MWNT, 多壁碳纳米管

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About This Item

CAS號碼:
308068-56-6
MDL號碼:
MFCD00133992
分類程式碼代碼:
12352103
NACRES:
NA.23
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描述

D/G ratio: 0.1 (by Raman spectroscopy)
Real density: 2.1 g/cm^3 (by Pycnometer)

品質等級

100

化驗

>95% carbon basis

長寬比

>100 , by FE-SEM

表面積

28 m2/g , by N<SUB>2</SUB> adsorption

直徑

50-90 nm
65 nm (by FE-SEM)

mp

3652-3697 °C (lit.)

密度

~2.1 g/mL at 25 °C (lit.)

體積密度

0.007 g/cm3 (by HCC method)

SMILES 字串

[C]

InChI

1S/C

InChI 密鑰

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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相關類別

一般說明

碳纳米管是碳原子组成的中空圆柱体。它们是卷起来的石墨烯片，其中的碳原子通过sp2杂化以共价键相互连接。由于其良好的机械和电学性质，它们被广泛应用于柔性和可穿戴电子设备领域。

應用

以聚合物共混物功能化修饰的多壁碳纳米管（MWCNT） 可用作可见光下结晶紫分解的 复合催化剂。

由于其高磁灵敏度，MWCNT/锰– 铁酸锌纳米复合材料可用于集成纳米电子系统。

由于其高机械弹性和稳定性，它们也可用于制造应力传感应用中的传感器。

特點和優勢

  • 极好的 电导性
  • 质量 轻
  • 化学 稳定性
  • 大 表面积
  • 高机械强度

準備報告

化学气相沉积 (CVD) 法

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類（WGK）

WGK 3

閃點（°F）

Not applicable

閃點（°C）

Not applicable

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCF3630
MKCF3628

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Questions

1–4 of 4 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 is the mean number of walls in MWCNT?

    1 answer

    1. There are 88 - 100 walls in these multi-walled carbon nanotubes.

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  4. What's the length of these tubes?

    1 answer

    1. The length of this product is typically > 6.5 micron.

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