کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7851332 1508851 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-pot titration methodology for the characterization of surface acidic groups on functionalized carbon nanotubes
ترجمه فارسی عنوان
یک روش اندازه گیری یک تکه برای مشخص کردن گروه های اسیدی سطحی در نانولوله های کربنی کارکرد
کلمات کلیدی
نانولوله کربنی، گروه اسیدی سطحی، خصوصیات سطحی، تیتراسیون یک گلدان، تیتراسیون مستقیم تثبیت غیر مستقیم،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
Functionalization is one of the key procedures for real applications of carbon nanotubes (CNTs) as it involves the generation of the acidic functional groups on their surfaces. In these procedures, precise elucidation of these surface acidic groups is significant for the proper utilization of the functionalized CNTs. For easy characterization of the practical acidic groups on CNTs, one-pot titration methodology is developed, breaking the boundary between the conventional indirect and direct titration methods. The practical acidic functional groups including carboxylic, lactonic, and phenolic groups were successfully computed from the acid ionization constant (pKa) distribution from the direct titration of nitric acid-oxidized multi-walled CNTs by means of a one-pot titration methodology. These results were fairly identical to the results of the popular indirect titration method, showing that the developed methodology is essentially applicable for the surface characterization of acidic groups on CNTs and potentially extended to the other carbon nanomaterials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 96, January 2016, Pages 729-741
نویسندگان
, ,