纳米制造.关键控制特性.第6-13部分:石墨烯粉末.氧官能团含量:Boehm滴定法

[中文适用范围]： 本文件建立了一种标准化方法，用于通过Boehm滴定法测定氧化石墨、氧化石墨烯、还原氧化石墨烯及其他功能化石墨烯的化学关键控制特性——含氧官能团含量。本文件中测量的官能团包括羧基（包括环状酸酐形式）、内酯基、羟基和活性羰基。不表现出反应性的含氧官能团（如环氧基）无法测量。含氧官能团含量是通过分散的石墨烯粉末消耗的NaHCO3、Na2CO3、NaOH和C2H5ONa的差值计算得出的。本文件确定的含氧官能团含量被列入石墨烯空白详细规范IEC 62565-3-1中的关键控制特性。该方法适用于可从水和乙醇中通过离心或过滤分离的石墨烯粉末及石墨烯相关二维碳材料（如氧化石墨烯粉末和还原氧化石墨烯粉末）。本文件不适用于磺酸改性石墨烯。本文件中，羧基、内酯基、羟基和羰基的检测下限分别为0.015 mmol/g、0.037 mmol/g、0.014 mmol/g和0.072 mmol/g。本文件旨在指导石墨烯制造商和下游用户进行材料设计、生产和质量控制。 [外文原描述]： IEC TS 62607-6-13:2020 establishes a standardized method to determine the chemical key control characteristic • oxygen functional group content on graphite oxide, graphene oxide, reduced graphene oxide and other types of functionalized graphene by • Boehm titration method. In this document, the measured functional groups are carboxyl groups (also in the form of their cyclic anhydrides), lactone groups, hydroxyl groups and reactive carbonyl groups. Oxygen functional groups that exhibit no reactivity such as epoxides cannot be measured The contents of the corrigendum 1 of October 2020 have been included in this copy.