Functionalization of Carbon Nanocomposites with Ruthenium Bipyridine and Terpyridine Complex

Author(s):  
Huayang Li ◽  
Issifu Harruna

Ruthenium bipyridine or terpyridine complexes functionalized carbon-based nanocomposites have special properties in the electromagnetic and photochemical research field. The aims of this chapter include development of functionalized fullerene, carbon nanotubes, and graphene with ruthenium complex and characterization of their nanostructural properties. Such nanocomposites can be accomplished using either covalent or non-covalent functionalization methods.

Carbon ◽  
2004 ◽  
Vol 42 (14) ◽  
pp. 2849-2854 ◽  
Author(s):  
M.C. Paiva ◽  
B. Zhou ◽  
K.A.S. Fernando ◽  
Y. Lin ◽  
J.M. Kennedy ◽  
...  

2001 ◽  
Vol 706 ◽  
Author(s):  
Matthew Bratcher ◽  
Bonnie Gersten ◽  
Helen Ji ◽  
Jimmy Mays

AbstractIn the past, the dispersion of carbon nanotubes (CNTs) in both liquids and solids has been difficult due to the high surface interactions between the tubes. Dispersion of polymer CNT composites is important for such benefits as structural reinforcement of composites, the percolation threshold of CNT based conducting materials, and the thermal properties with the exploitation of the high surface area of CNTs. Here we discuss two approaches towards addressing dispersion of multiwalled nanotubes (MWNTs). One approach is the use of surfactant chemicals selected on the basis that they interact with CNT chemical groups. The second approach is the functionalization through covalent bonding of the CNTs with various polymers including polyethylenimine (PEI), and poly(methyl methacrylate) (PMMA). The two approaches were evaluated to determine whether covalent functionalization was more beneficial than the use of surfactants. Characterization of the dispersion was performed using various microscopy techniques.


Radiocarbon ◽  
2018 ◽  
Vol 60 (4) ◽  
pp. 1101-1114
Author(s):  
Tibor Szabó ◽  
Róbert Janovics ◽  
Marianna Túri ◽  
István Futó ◽  
István Papp ◽  
...  

ABSTRACTCarbon-based nanomaterials of different dimensions (1–3D, tubes, bundles, films, papers and sponges, graphene sheets) have been created and their characteristic properties have been discussed intensively in the literature. Due to their unique advantageous, tunable properties these materials became promising candidates in new generations of applications in many research laboratories and, recently, in industries as well. Protein-based bio-nanocomposites are referred to as materials of the future, which may serve as conceptual revolution in the development of integrated optical devices, e.g. optical switches, microimaging systems, sensors, telecommunication technologies or energy harvesting and biosensor applications. In our experiments, we designed various carbon-based nanomaterials either doped or not doped with nitrogen or sulfur during catalytic chemical vapor deposition synthesis. Radio- and isotope analytical studies have shown that the used starting materials, precursors and carriers have a strong influence on the geometry and physico-/chemical characteristics of the carbon nanotubes produced. After determining the 14C isotope constitution 53 m/m% balance was found in the reaction center protein/carbon nanotubes complex in a sensitive way that was prepared in our laboratory. The result is essential in determining the yield of conversion of light energy to chemical potential in this bio-hybrid system.


2006 ◽  
Vol 6 (5) ◽  
pp. 1381-1386 ◽  
Author(s):  
Massimo Bottini ◽  
Andrea Magrini ◽  
Almerinda Di Venere ◽  
Stefano Bellucci ◽  
Marcia I. Dawson ◽  
...  

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