TY - GEN
T1 - Electrodes based on carbon nanomaterials
T2 - 5th International Science and Practice Conference on Nanotechnology and Nanomaterials, NANO 2017
AU - Volfkovich, Yurii
AU - Bograchev, Daniil
AU - Mikhalin, Alexey
AU - Rychagov, Alexey
AU - Sosenkin, Valentin
AU - Milyutin, Vitaly
AU - Park, Daewook
N1 - Publisher Copyright:
© Springer International Publishing AG, part of Springer Nature 2018.
PY - 2018
Y1 - 2018
N2 - Both fibrous- and corpuscular-like materials based on activated carbon, which are considered as electrodes for capacitive deionization, were investigated with a method of standard contact porosimetry. Nanosized pores as well as micro- and macropores have been recognized for the investigated materials. It was found that the hydrophilic specific surface area that is provided by the smallest mesopores and micropores has been found to reach 520–850 m2 g−1; total surface area is 940–1520 m2 g−1. Galvanostatic measurements of dependences of cell voltage on time were performed in a static cell; capacitance of the electrodes was determined from the plateau of the curves. The capacitance of electric double layer was calculated. For the CH900 material, which is characterized by the highest volume of hydrophilic micropores and nanosized voids, this value achieves 63 F g−1. The model for capacitive deionization in a static cell has been developed; the approach allows one to calculate the process using only experimental parameters (surface conductivity and capacitance of electric double layer).
AB - Both fibrous- and corpuscular-like materials based on activated carbon, which are considered as electrodes for capacitive deionization, were investigated with a method of standard contact porosimetry. Nanosized pores as well as micro- and macropores have been recognized for the investigated materials. It was found that the hydrophilic specific surface area that is provided by the smallest mesopores and micropores has been found to reach 520–850 m2 g−1; total surface area is 940–1520 m2 g−1. Galvanostatic measurements of dependences of cell voltage on time were performed in a static cell; capacitance of the electrodes was determined from the plateau of the curves. The capacitance of electric double layer was calculated. For the CH900 material, which is characterized by the highest volume of hydrophilic micropores and nanosized voids, this value achieves 63 F g−1. The model for capacitive deionization in a static cell has been developed; the approach allows one to calculate the process using only experimental parameters (surface conductivity and capacitance of electric double layer).
UR - http://www.scopus.com/inward/record.url?scp=85049672937&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-91083-3_9
DO - 10.1007/978-3-319-91083-3_9
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AN - SCOPUS:85049672937
SN - 9783319910826
T3 - Springer Proceedings in Physics
SP - 127
EP - 146
BT - Nanooptics, Nanophotonics, Nanostructures, and Their Applications - Selected Proceedings of the 5th International Conference Nanotechnology and Nanomaterials, NANO 2017
A2 - Fesenko, Olena
A2 - Yatsenko, Leonid
Y2 - 23 August 2017 through 26 August 2017
ER -