A study of the stability of aqueous suspensions of functionalized carbon nanotubes

被引：3

作者：

Zakharychev, E. A. ^{[1
]}

Kabina, M. A. ^{[1
]}

Razov, E. N. ^{[2
]}

Semenycheva, L. L. ^{[1
]}

机构：

[1] Lobachevsky Nizhny Novgorod State Univ, Pr Gagarina 23, Nizhnii Novgorod 603950, Russia

[2] Russian Acad Sci, Inst Machine Construct Problems, Ul Belinskogo 85, Nizhnii Novgorod 603024, Russia

来源：

COLLOID JOURNAL | 2016年 / 78卷 / 05期

关键词：

SURFACE; DISPERSION; OXIDATION; CHEMISTRY;

D O I：

10.1134/S1061933X16050240

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The properties of aqueous suspensions of carbon nanotubes have been studied as depending on the conditions of their functionalization in a mixture of sulfuric and nitric acids. The elemental composition and contents of carboxyl, lactone, and hydroxyl groups in carbon nanotubes have been determined at different durations and temperatures of functionalization. The influence of functionalization conditions on the value of the electrokinetic potential of carbon nanotubes in aqueous suspensions and the nanotube solubility in water has been investigated. It has been found that the absolute value of the electrokinetic potential of nanotubes and their solubility in water increase with both the duration and temperature of functionalization due to a rise in the number of functional groups on their surface. The optimal regimes of functionalization of carbon nanotubes have been determined from the point of view of preserving their structure and stability in aqueous dispersions.

引用

页码：602 / 607

页数：6

共 50 条

[21] Thermal stability of functionalized carbon nanotubes studied by in situ transmission electron microscopy
Luo, Zhiping
Oki, Aderemi
Carson, Laura
Adams, Luqman
Neelgund, Gururaj
Soboyejo, Nathaniel
Regisford, Gloria
Stewart, Melisa
Hibbert, Kemar
Beharie, Gavannie
Kelly-Brown, Cordella
Traisawatwong, Pasakorn
CHEMICAL PHYSICS LETTERS, 2011, 513 (1-3) : 88 - 93
[22] Synthesis and Characterization of Nitro-Functionalized Single-Walled Carbon Nanotubes
Forohar, Farhad
Whitaker, Craig M.
Uber, Ian C.
Bellitto, Victor
JOURNAL OF ENERGETIC MATERIALS, 2012, 30 (01) : 55 - 71
[23] Impact of surfactant and clay platelets on electrokinetic potential and size distribution in carbon nanotubes aqueous suspensions
Manilo, M.
Bohacs, K.
Lebovka, N.
Barany, S.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2018, 544 : 205 - 212
[24] Colloidal Properties of Aqueous Suspensions of Acid-Treated, Multi-Walled Carbon Nanotubes
Smith, Billy
Wepasnick, Kevin
Schrote, K. E.
Bertele, A. H.
Ball, William P.
O'Melia, Charles
Fairbrother, D. Howard
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (03) : 819 - 825
[25] Carbon nanotubes prevent the coagulation at high shear rates of aqueous suspensions of equiaxed ceramic nanoparticles
Candelario, Victor M.
Moreno, Rodrigo
Ortiz, Angel L.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (03) : 555 - 563
[26] Doubly functionalized multiwall carbon nanotubes with enhanced solubility
Rosca, Iosif D.
Barsan, Mirela M.
Butler, Ian S.
Kozinski, Janusz A.
CARBON, 2009, 47 (10) : 2552 - 2555
[27] Characterization of the electric double layers of multi-walled carbon nanotubes, laponite and nanotube plus laponite hybrids in aqueous suspensions
Manilo, Maryna
Lebovka, Nikolai
Barany, Sandor
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2014, 462 : 211 - 216
[28] The stability of suspensions of multiwalled carbon nanotubes in organic solvents in the presence of triton X-165
Gigiberiya, V. A.
Ar'ev, I. A.
Lebovka, N. I.
COLLOID JOURNAL, 2012, 74 (06) : 663 - 667
[29] Supramolecular aggregation of functionalized carbon nanotubes
Quintana, Mildred
Prato, Maurizio
CHEMICAL COMMUNICATIONS, 2009, (40) : 6005 - 6007
[30] Selection of dispersants for stabilization of unfunctionalized carbon nanotubes in high pH aqueous suspensions: Application to cementitious matrices
Bogas, J. A.
Hawreen, A.
Olhero, S.
Ferro, A. C.
Guedes, M.
APPLIED SURFACE SCIENCE, 2019, 463 : 169 - 181

← 1 2 3 4 5 →