کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1786727 1023424 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characteristic of platinum catalyst deposited on boron-doped carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Preparation and characteristic of platinum catalyst deposited on boron-doped carbon nanotubes
چکیده انگلیسی

In this work, boron doped multi-walled carbon nanotubes (BMWNTs) were introduced as a Pt catalyst support due to their unique physicochemical properties. The effect of BMWNTs on methanol oxidation was investigated with different Pt loading contents. The surface and structural properties of the modified MWNT supports were characterized by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), respectively. The Pt loading contents in the catalysts were confirmed by inductive coupled plasma-mass spectrometer (ICP-MS) and the morphological structures of the catalysts were analyzed by transmission electron microscopy (TEM). The electrocatalytic activity of Pt/MWNTs was investigated by cyclic voltammetry measurement. As a result, the boron oxide vapor reacted with MWNTS to form BMWNTs, which led to enhancing the properties, such as graphitization and electrochemical behaviors. Moreover, Pt deposited on BMWNTs exhibited better electrocatalytic activity than on MWNTs for methanol oxidation. Consequently, it was found that partial boron doped MWNTs could influence on the properties of the MWNTs, resulting in enhancing the electrocatalytic activity of the catalysts for DMFCs.


► Boron-doped MWNTs (BMWNTs) are prepared as a Pt catalyst support.
► Boron-doping could influence on surface properties of MWNT.
►  Pt/BMWNTs exhibit better electrocatalytic activity than on Pt/MWNTs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 12, Issue 5, September 2012, Pages 1248–1251
نویسندگان
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