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biomineral金蟲(chóng) (著名寫(xiě)手)
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[交流]
請(qǐng)問(wèn)碳納米管純化后金屬殘余的測(cè)定 已有2人參與
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我做碳納米管的電學(xué)性質(zhì),需要盡量提純碳納米管,其中金屬雜質(zhì)的影響會(huì)很大。我提純后想確定一下產(chǎn)品中金屬例如鐵元素的含量,請(qǐng)問(wèn)有相關(guān)文獻(xiàn)嗎?一般是不是用原子光譜來(lái)測(cè)定?萬(wàn)分感謝! 發(fā)自小木蟲(chóng)IOS客戶端 |
wulishi8在碳材料和其他專業(yè)問(wèn)題的回復(fù) |
金蟲(chóng) (著名寫(xiě)手)
至尊木蟲(chóng) (著名寫(xiě)手)
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X射線電子能譜XPS,X射線衍射XRD,X射線能譜元素分布EDS等都能測(cè)碳管里的金屬。AAS/AES當(dāng)然也可以,把碳管消解后進(jìn)樣就成了。前三者可參見(jiàn): TJ Aitchison et al. Purification, Cutting, and Sidewall Functionalization of Multiwalled Carbon Nanotubes Using Potassium Permanganate Solutions. J Phys Chem C 2007, 111: 2440-2446. JS Wang et al. Purification of Single-Walled Carbon Nanotubes Using a Supercritical Fluid Extraction Method. J Phys Chem C 2007, 11: 13007-13012. S Scaccia et al. Study of Purification Process of Single-Walled Carbon Nanotubes by Thermoanalytical Techniques. Thermochimica Acta 2005, 435: 209-212. |

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金蟲(chóng) (著名寫(xiě)手)
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