کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
611722 880683 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The study of controlling pore size on electrospun carbon nanofibers for hydrogen adsorption
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
The study of controlling pore size on electrospun carbon nanofibers for hydrogen adsorption
چکیده انگلیسی

Polyacrylonitrile (PAN)-based carbon nanofibers (CNFs) were prepared by using electrospinning method and heat treatment to get the media for hydrogen adsorption storage. Potassium hydroxide and zinc chloride activations were conducted to increase specific surface area and pore volume of CNFs. To investigate the relation between pore structure and the capacity of hydrogen adsorption, textural properties of activated CNFs were studied with micropore size distribution, specific surface area, and total pore volume by using BET (Brunauer–Emmett–Teller) surface analyzer apparatus and the capacity of hydrogen adsorption was evaluated by PCT (pressure–composition–temperature) hydrogen adsorption analyzer apparatus with volumetric method. The surface morphology of activated CNFs was observed by SEM (scanning electron microscope) images to investigate the surface change through activation. Even though specific surface area and total pore volume were important factors for increasing the capacity of hydrogen adsorption, the pore volume which has pore width (0.6–0.7 nm) was a much more effective factor than specific surface area and pore volume in PAN-based electrospun activated CNFs.

HK pore volume of CNFs: (a) as-received, ZC-W2, ZC-W4, and ZC-W6 (ZnCl2 treated samples); (b) as-received, PH-M4, PH-M6, and PH-M8 (KOH treated samples).Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 318, Issue 1, 1 February 2008, Pages 42–49
نویسندگان
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