NDLI: Effects of phosphoric acid activation on the nanopore structures of carbon xerogel/carbon nanotubes hybrids and their capacitance storage

Content Provider	Springer Nature Link
Author	Fathy, Nady A. Annamalai, K. P. Tao, Yousheng
Copyright Year	2017
Abstract	This paper aimed to study the electrochemical capacitance behaviors in relation to the nanopore structures of three carbon materials, which were prepared under different conditions and named as carbon xerogels (CXs), carbon xerogels/carbon nanotubes hybrids (CXs/CNTs) and activated carbon xerogels/carbon nanotubes hybrids (aCXs/CNTs). Field emission scanning electron microscopy showed the growth of CNTs on the CXs surface in the CXs/CNTs hybrids. Nitrogen physisorption measurements at 77 K indicated a decrease in the specific surface area and the total pore volume of micropores and mesopores after decorating the CXs surface with CNTs, however an increase after activation with phosphoric acid at 973 K for 180 min. Because of the combination of CNTs and phosphoric acid activation, electrochemical capacitance increased in the order of CXs < CXs/CNTs < aCXs/CNTs and it delivered maximum capacitance of 151 F g− 1 at 2.5 A g− 1 in 1 M H2SO4.
Starting Page	355
Ending Page	360
Page Count	6
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	23
Issue Number	2-3
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2017-01-13
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Synthesis Carbon xerogel Carbon nanotube Nitrogen adsorption Micropore Mesopore Capacitance Industrial Chemistry/Chemical Engineering Surfaces and Interfaces, Thin Films Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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