Hybrid materials based on perfluorosulfonic acid membrane and functionalized carbon nanotubes: Synthesis, investigation and transport properties

2016 ◽  
Vol 41 (34) ◽  
pp. 15585-15592 ◽  
Author(s):  
I.A. Prikhno ◽  
E. Yu Safronova ◽  
A.B. Yaroslavtsev
Keyword(s):  
Carbon Nanotubes ◽  
Transport Properties ◽  
Hybrid Materials ◽  
Perfluorosulfonic Acid ◽  
Functionalized Carbon Nanotubes

Proton Transfer in Perfluorosulfonic Acid Functionalized Carbon Nanotubes

2010 ◽  
Vol 1269 ◽  
Author(s):  
Bradley F Habenicht ◽  
Stephen J Paddison ◽  
Mark Tuckerman
Keyword(s):  
Carbon Nanotubes ◽  
Sulfonic Acid ◽  
Negative Charge ◽  
Ab Initio Molecular Dynamics ◽  
Water Molecules ◽  
Perfluorosulfonic Acid ◽  
Functionalized Carbon Nanotubes ◽  
Hydronium Ion ◽  
Proton Dissociation ◽  
Sulfonic Acid Groups

AbstractProton dissociation and transfer are investigated with ab initio molecular dynamics (AIMD) simulations of carbon nanotubes (CNT) functionalized with perfluorosulfonic acid (-CF2SO3H) groups with 3 H2O/–SO3H. The CNT systems were constructed both with and without fluorine atoms covalently bound to the inner walls to determine the effects of the presence of fluorine on proton dissociation, hydration, and stabilization. The results of the AIMD trajectories show that decreasing the separation of sulfonic acid groups increases the propensity for proton dissociation. The simulations also revealed that the dissociated proton was preferentially stabilized as a hydrated hydronium (H3O+) cation in the CNT systems with the fluorine. This feature is attributed to the fluorine atoms providing a localized negative charge that promotes hydrogen bonding of the water molecules coordinated to the central hydronium ion. The hydrated H3O+ ion differed from a traditional Eigen cation (H9O4+) as it donated hydrogen bonds to sulfonate oxygen atoms, as well as water molecules.

scholarly journals Preparation and catalytic performance of perfluorosulfonic acid-functionalized carbon nanotubes

2014 ◽  
Vol 35 (11) ◽  
pp. 1874-1882 ◽  
Author(s):  
Mengxiao Zhang ◽  
Cuican Li ◽  
Weiming Hua ◽  
Yinghong Yue ◽  
Zi Gao
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Performance ◽  
Perfluorosulfonic Acid ◽  
Functionalized Carbon Nanotubes

Structural Conductivity of Carbon Nanotubes

2008 ◽  
Vol 59 (10) ◽  
pp. 1169-1171 ◽  
Author(s):  
Zoltan Borsos ◽  
Viorel-Puiu Paun ◽  
Irinel Casian Botez ◽  
Cristina-Maria Stoica ◽  
Petrica Vizureanu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fractal Dimension ◽  
Electrical Properties ◽  
Transport Properties ◽  
Structural Form ◽  
Structural Symmetry

In this paper, the explicit connection between the high structural symmetry of the carbon nanotubes and the electrical properties is studied. An interesting path effect on the transport properties will be proved. For a bidimensional lattice, the conductivity sx depends on the structural form, which determines the shape of electron path, respectively it is direct proportional to the fractal dimension of this path.

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