.png){kind=icon}
.png){kind=icon}
Return
Effects of phosphoric acid activation on the nanopore structures of carbon xerogel/carbon nanotubes hybrids and their capacitance storage
.png){kind=icon}
PRE
AI
N
K
Y
DOI：10.1007/s10450-017-9860-y.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
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.
Keywords:
Synthesis
Carbon xerogel
Carbon nanotube
Nitrogen adsorption
Micropore
Mesopore
Capacitance
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
A
IF:
3.1
Papers:
2.1K
Citations:
3.9K
Organization
Cited Papers