Growth, Properties, and Applications of Branched Carbon Nanostructures

Malik, Sharali; Marchesan, Silvia

doi:10.3390/nano11102728

Cited by 10 publications

(3 citation statements)

References 145 publications

(185 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon nanotubes can be composed of one graphitic layer rolled up in single-walled CNTs (SWCNTs) [ 145 ], or multiple coaxial graphitic nanotubes called multi-walled CNTs (MWCNTs) [ 146 ], which can be grown with branches also [ 147 ]. CNTs can have very different properties; for instance, they can be semiconducting or metallic, depending on their type and chirality [ 148 ].…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanomaterials (CNMs) and Enzymes: From Nanozymes to CNM-Enzyme Conjugates and Biodegradation

et al. 2022

Self Cite

View full text Add to dashboard Cite

Carbon nanomaterials (CNMs) and enzymes differ significantly in terms of their physico-chemical properties—their handling and characterization require very different specialized skills. Therefore, their combination is not trivial. Numerous studies exist at the interface between these two components—especially in the area of sensing—but also involving biofuel cells, biocatalysis, and even biomedical applications including innovative therapeutic approaches and theranostics. Finally, enzymes that are capable of biodegrading CNMs have been identified, and they may play an important role in controlling the environmental fate of these structures after their use. CNMs’ widespread use has created more and more opportunities for their entry into the environment, and thus it becomes increasingly important to understand how to biodegrade them. In this concise review, we will cover the progress made in the last five years on this exciting topic, focusing on the applications, and concluding with future perspectives on research combining carbon nanomaterials and enzymes.

show abstract

Section: Introductionmentioning

confidence: 99%

Carbon Nanomaterials (CNMs) and Enzymes: From Nanozymes to CNM-Enzyme Conjugates and Biodegradation

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…sp 1 , sp 2 , and sp 3 hybridization), carbon nanofoams find application in research fields of great societal and technological importance, such as next generation supercapacitors (3), hydrogen (4) and ion storage (5), advanced catalysis (6), pollutant removal (7), solar energy conversion (8) and laser-driven ion acceleration (9; 10; 11), to name a few. Many methods have been proposed for the synthesis of carbon nanofoams, ranging from pyrolysis and combustion (12; 13) to thermal blowing (14), Chemical Vapour Deposition (15) and Physical Vapour Deposition techniques (16).…”

Section: Introductionmentioning

confidence: 99%

Pulsed Laser Deposition of Carbon Nanofoam

et al. 2022

View full text Add to dashboard Cite

“…The enhanced multifunctional properties of nanostructured polymers have opened up a wide range of engineering applications, including the production of lightweight materials for the automotive and aerospace industries, as well as materials for use in thermal and electrical conductors, energy storage devices, sensors, and more (see, e.g. [20][21][22] ). However, while the mechanical and thermal/electrical conductivity properties of bCNT nanocomposites have been widely studied, their dissipative properties and nonlinear mechanical response features have not been as thoroughly explored in the literature.…”

mentioning

confidence: 99%

Unusual nonlinear switching in branched carbon nanotube nanocomposites

Lacarbonara

Guruva

Carboni

et al. 2023

Sci Rep

View full text Add to dashboard Cite

In this experimental study, we investigate the nonlinear dynamic response of nanocomposite beams composed of polybutylene terephthalate (PBT) and branched carbon nanotubes (bCNTs). By varying the weight fraction of bCNTs, we obtain frequency response curves for cantilever specimens under harmonic base excitations, measuring the tip displacement via 3D scanning laser vibrometry. Our findings reveal a surprising nonlinear softening trend in the steady-state response of the cantilevers, which gets switched into hardening for higher bCNT weight fractions and increasing oscillation amplitudes. The interaction of bCNTs with the thermoplastic hosting matrix results in stick-slip hysteresis, causing a softening nonlinearity that counteracts the geometric hardening associated with the nonlinear curvature of the first mode of the cantilever. However, when the weight fraction of bCNTs is greater than 1%, the bridging of the branched CNTs leads to the formation of a strong network that contributes to the hardening response at higher oscillation amplitudes. This mechanical behavior is detected by the trend of the nonlinear harmonic spectra and the equivalent damping ratio estimated using the half-power bandwidth method. To predict the observed unusual experimental behavior, we use a nonlinear mathematical model of the nanocomposite cantilever samples derived from a 3D mesoscale hysteretic model of the PBT/bCNT material. Our results suggest that the presence of bCNTs in a thermoplastic matrix is the main driver of the highly tunable nonlinear stiffness and damping capacity of the material. The reported experimental and modeling results provide valuable insights into the nonlinear dynamic behavior of PBT/bCNT nanocomposites and have potential applications in the design of advanced materials with tailored mechanical properties.

show abstract

Growth, Properties, and Applications of Branched Carbon Nanostructures

Cited by 10 publications

References 145 publications

Carbon Nanomaterials (CNMs) and Enzymes: From Nanozymes to CNM-Enzyme Conjugates and Biodegradation

Carbon Nanomaterials (CNMs) and Enzymes: From Nanozymes to CNM-Enzyme Conjugates and Biodegradation

Pulsed Laser Deposition of Carbon Nanofoam

Unusual nonlinear switching in branched carbon nanotube nanocomposites

Contact Info

Product

Resources

About