کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
181514 | 459404 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Towards surface acid–base property of the carboxylic multi-walled carbon nanotubes by zero current potentiometry
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Towards surface acid–base property of the carboxylic multi-walled carbon nanotubes by zero current potentiometry Towards surface acid–base property of the carboxylic multi-walled carbon nanotubes by zero current potentiometry](/preview/png/181514.png)
چکیده انگلیسی
The surface acid–base property of carboxylic multi-walled carbon nanotubes (MWNTs) is investigated by zero current potentiometry with a new electrochemical measurement system. The pH dependent interface potential variation at the interface of carboxylic MWNTs/solution is investigated by measuring zero current potential Ezcp. In the pH range of 1–11, the pH response of carboxylic MWNTs exhibits two linear relationships according to the following equations: Ezcp = 0.791–0.0535 pH (pH 1–5.1) and Ezcp = 0.643–0.0241 pH (pH 5.1–11), respectively. The intersection at pH 5.1 of two regions indicates the surface pKa value of carboxylic group terminated MWNTs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 11, Issue 6, June 2009, Pages 1285–1288
Journal: Electrochemistry Communications - Volume 11, Issue 6, June 2009, Pages 1285–1288
نویسندگان
Wei Gao, Junfeng Song,