ISO/TS 23690:2023 纳米技术 多壁碳纳米管 用热重分析法测定碳杂质含量

标准编号：ISO/TS 23690:2023

中文名称：纳米技术 多壁碳纳米管 用热重分析法测定碳杂质含量

英文名称：Nanotechnologies — Multiwall carbon nanotubes — Determination of carbon impurity content by thermogravimetric analysis

发布日期：2023-07

标准范围

本文件规定了一种温和氧化方法，用于在二氧化碳气氛下通过热重分析(TGA)测定不如多壁碳纳米管(MWCNT)稳定的碳杂质(不是CNT形式的碳材料含量，包括无定形碳和痕量的其他类型的结构化碳)的含量。本文件适用于通过化学气相沉积（CVD）制备的MWCNT样品中碳杂质含量的表征。其他方法制备的MWCNT样品中碳杂质的测定可参考本文。该方法不适用于官能化的MWCNT样品或具有包封剂物质的MWCNT样品。笔记？该方法适用于单级TG曲线的情况。

This document specifies a mild oxidation method to determine the content of carbon impurities (carbon material content not in the form of CNT, including amorphous carbon and trace amountd of other types of structured carbon) less stable than multiwall carbon nanotubes (MWCNTs) by thermogravimetric analysis (TGA) under carbon dioxide atmosphere.

This document is applicable to the characterization of carbon impurities content in MWCNT samples prepared by chemical vapour deposition (CVD). Measurement of carbon impurities in MWCNT samples prepared by other methods can refer to this document. This method is not applicable to functionalized MWCNT samples or MWCNT samples with encapsulant species.

NOTE       This method is applicable for the case of TG curves with a single-stage.

标准预览图