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Title: Preparation and CO 2 adsorption properties of soft-templated mesoporous carbons derived from chestnut tannin precursors

This paper presents a soft templating approach for mesoporous carbon using the polyphenolic heterogeneous biomass, chestnut tannin, as the carbon precursor. By varying synthesis parameters such as tannin:surfactant ratio, cross-linker, reaction time and acid catalyst, the pore structure could be controllably modulated from lamellar to a more ordered hexagonal array. Carbonization at 600 °C under nitrogen produced a bimodal micro-mesoporous carbonaceous material exhibiting enhanced hydrogen bonding with the soft template, similar to that shown by soft-templating of phenolic-formaldehyde resins, allowing for a tailorable pore size. By utilizing the acidic nature of chestnut tannin (i.e. gallic and ellagic acid), hexagonal-type mesostructures were formed without the use of an acid catalyst. The porous carbon materials were activated with ammonia to increase the available surface area and incorporate nitrogen-containing functionality which led to a maximum CO 2 adsorption capacity at 1 bar of 3.44 mmol/g and 2.27 mmol/g at 0 °C and 25 °C, respectively. The ammonia-activated carbon exhibited multiple peaks in the adsorption energy distribution which indicates heterogeneity of adsorption sites for CO 2 capture.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [2] ;  [2] ;  [4] ;  [3]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Cornell College, Mount Vernon, IA (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Microporous and Mesoporous Materials
Additional Journal Information:
Journal Volume: 222; Journal ID: ISSN 1387-1811
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; mesoporous carbon; chestnut tannin; self-assembly; carbon dioxide; adsorption
OSTI Identifier:
1244196
Alternate Identifier(s):
OSTI ID: 1396330

Nelson, Kimberly M., Mahurin, Shannon Mark, Mayes, Richard T., Teague, Craig M., Binder, Andrew J., Baggetto, Loic, Veith, Gabriel M., Dai, Sheng, and Williamson, Ben. Preparation and CO2 adsorption properties of soft-templated mesoporous carbons derived from chestnut tannin precursors. United States: N. p., Web. doi:10.1016/j.micromeso.2015.09.050.
Nelson, Kimberly M., Mahurin, Shannon Mark, Mayes, Richard T., Teague, Craig M., Binder, Andrew J., Baggetto, Loic, Veith, Gabriel M., Dai, Sheng, & Williamson, Ben. Preparation and CO2 adsorption properties of soft-templated mesoporous carbons derived from chestnut tannin precursors. United States. doi:10.1016/j.micromeso.2015.09.050.
Nelson, Kimberly M., Mahurin, Shannon Mark, Mayes, Richard T., Teague, Craig M., Binder, Andrew J., Baggetto, Loic, Veith, Gabriel M., Dai, Sheng, and Williamson, Ben. 2015. "Preparation and CO2 adsorption properties of soft-templated mesoporous carbons derived from chestnut tannin precursors". United States. doi:10.1016/j.micromeso.2015.09.050. https://www.osti.gov/servlets/purl/1244196.
@article{osti_1244196,
title = {Preparation and CO2 adsorption properties of soft-templated mesoporous carbons derived from chestnut tannin precursors},
author = {Nelson, Kimberly M. and Mahurin, Shannon Mark and Mayes, Richard T. and Teague, Craig M. and Binder, Andrew J. and Baggetto, Loic and Veith, Gabriel M. and Dai, Sheng and Williamson, Ben},
abstractNote = {This paper presents a soft templating approach for mesoporous carbon using the polyphenolic heterogeneous biomass, chestnut tannin, as the carbon precursor. By varying synthesis parameters such as tannin:surfactant ratio, cross-linker, reaction time and acid catalyst, the pore structure could be controllably modulated from lamellar to a more ordered hexagonal array. Carbonization at 600 °C under nitrogen produced a bimodal micro-mesoporous carbonaceous material exhibiting enhanced hydrogen bonding with the soft template, similar to that shown by soft-templating of phenolic-formaldehyde resins, allowing for a tailorable pore size. By utilizing the acidic nature of chestnut tannin (i.e. gallic and ellagic acid), hexagonal-type mesostructures were formed without the use of an acid catalyst. The porous carbon materials were activated with ammonia to increase the available surface area and incorporate nitrogen-containing functionality which led to a maximum CO2 adsorption capacity at 1 bar of 3.44 mmol/g and 2.27 mmol/g at 0 °C and 25 °C, respectively. The ammonia-activated carbon exhibited multiple peaks in the adsorption energy distribution which indicates heterogeneity of adsorption sites for CO2 capture.},
doi = {10.1016/j.micromeso.2015.09.050},
journal = {Microporous and Mesoporous Materials},
number = ,
volume = 222,
place = {United States},
year = {2015},
month = {10}
}