Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/2130
Title: No More HF: Teflon-Assisted Ultrafast Removal of Silica to Generate High-Surface-Area Mesostructured Carbon for Enhanced CO2 Capture and Supercapacitor Performance
Authors: Singh, Dheeraj Kumar
Krishna, Katla Sai
Harish, Srinivasan
Sampath, Srinivasan
Eswaramoorthy, M.
Keywords: Chemistry
gas storage
ordered mesoporous carbons
silica
supercapacitors
Teflon
Ordered Mesoporous Carbon
Graphitic Pore Walls
Hydrogen Storage
Porous Carbon
Frameworks
Polymers
Transformation
Graphene
Nitrogen
Density
Issue Date: 2016
Publisher: Wiley-V C H Verlag Gmbh
Citation: Singh, D. K.; Krishna, K. S.; Harish, S.; Sampath, S.; Eswaramoorthy, M., No More HF: Teflon-Assisted Ultrafast Removal of Silica to Generate High-Surface-Area Mesostructured Carbon for Enhanced CO2 Capture and Supercapacitor Performance. Angewandte Chemie-International Edition 2016, 55 (6), 2032-2036 http://dx.doi.org/10.1002/anie.201509054
Angewandte Chemie-International Edition
55
6
Abstract: An innovative technique to obtain high-surface-area mesostructured carbon (2545m(2)g(-1)) with significant microporosity uses Teflon as the silica template removal agent. This method not only shortens synthesis time by combining silica removal and carbonization in a single step, but also assists in ultrafast removal of the template (in 10min) with complete elimination of toxic HF usage. The obtained carbon material (JNC-1) displays excellent CO2 capture ability (ca. 26.2wt% at 0 degrees C under 0.88bar CO2 pressure), which is twice that of CMK-3 obtained by the HF etching method (13.0wt%). JNC-1 demonstrated higher H-2 adsorption capacity (2.8wt%) compared to CMK-3 (1.2wt%) at -196 degrees C under 1.0bar H-2 pressure. The bimodal pore architecture of JNC-1 led to superior supercapacitor performance, with a specific capacitance of 292Fg(-1) and 182Fg(-1) at a drain rate of 1Ag(-1) and 50Ag(-1), respectively, in 1m H2SO4 compared to CMK-3 and activated carbon.
Description: Restricted Access
URI: http://hdl.handle.net/10572/2130
ISSN: 1433-7851
Appears in Collections:Research Articles (Eswaramoorthy M.)

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