Thermal stimulation of aqueous volumes contained in carbon nanotubes: Experiment and modeling

2005-01-01
Yarin, AL
Güvenç Yazıcıoğlu, Almıla
Megaridis, CM
The dynamic response, as caused by thermal stimulation, of aqueous liquid attoliter volumes contained inside multiwall carbon nanotubes is investigated theoretically and experimentally. The experiments indicate an energetically driven mechanism responsible for the dynamic multiphase fluid behavior visualized under high resolution in the transmission electron microscope. The theoretical model is formulated using a continuum approach, which combines temperature-dependent diffusion with intermolecular interactions in the fluid bulk, as well as in the vicinity of the carbon wall. Intermolecular van der Waals forces are modeled by Lennard-Jones 12-6 potentials. Comparisons between theoretical predictions and experimental data demonstrate the ability of the model to describe the major trends observed in the experiments. (C) 2005 American Institute of Physics.
APPLIED PHYSICS LETTERS

Suggestions

Theoretical and experimental investigation of aqueous liquids contained in carbon nanotubes
Yarin, AL; Güvenç Yazıcıoğlu, Almıla; Megaridis, CM; Rossi, MP; Gogotsi, Y (2005-06-01)
The dynamic response-as caused by different means of thermal stimulation or pressurization-of aqueous liquid attoliter volumes contained inside carbon nanotubes is investigated theoretically and experimentally. The experiments indicate an energetically driven mechanism responsible for the dynamic multiphase fluid behavior visualized in real time with high spatial resolution using electron microscopy. The theoretical model is formulated using a continuum approach, which combines temperature-dependent mass di...
Energy band gap and oscillator parameters of Ga4Se3S single crystals
Qasrawi, A. F.; Hasanlı, Nızamı (Elsevier BV, 2007-06-01)
The optical properties of the Bridgman method grown Ga4Se3S crystals have been investigated by means of room temperature, transmittance and reflectance spectral analysis. The optical data have revealed an indirect allowed transition band gap of 2.08 eV. The room temperature refractive index, which was calculated from the reflectance and transmittance data, allowed the identification of the dispersion and oscillator energies, static dielectric constant and static refractive index as 21.08 and 3.85 eV, 6.48 a...
Thermal decomposition of polystyrene-b-poly(2-vinylpyridine) coordinated to co nanoparticles
Elmaci, Ayşegül; Hacaloğlu, Jale; Kayran, Ceyhan; Sakellariou, Georgios; Hadjichristidis, Nikos (2009-11-01)
Direct pyrolysis mass spectrometry analyses of polystyrene-block-poly(2-vinylpyridne), PS-b-P2VP, indicated that the thermal degradation of each component occurred independently through the decomposition pathways proposed for the corresponding homopolymers; depolymerization for PS and depolymerization and loss of protonated oligomers for P2VP by a more complex degradation mechanism. On the other hand, upon coordination to cobalt nanoparticles, thermal decomposition of the P2VP blocks was initiated by loss o...
Electro-chemo-mechanical induced fracture modeling in proton exchange membrane water electrolysis for sustainable hydrogen production
Aldakheel, Fadi; Kandekar, Chaitanya; Bensmann, Boris; Dal, Hüsnü; Hanke-Rauschenbach, Richard (2022-10-01)
This work provides a framework for predicting fracture of catalyst coated membrane (CCM) due to coupled electro-chemo-mechanical degradation processes in proton exchange membrane water electrolysis (PEMWE) cells. Electrolysis in the catalyst layer (CL) bulk, diffusion of Hydrogen proton through the membrane (MEM), and mechanical compression at the interface with the porous transport layer (PTL) generate micro-cracks that influence the catalyst degradation. Based on our experimental observations, we propose ...
Dispersive optical constants of Tl2InGaSe4 single crystals
Qasrawi, A. F.; Hasanlı, Nızamı (IOP Publishing, 2007-09-01)
The structural and optical properties of Bridgman method grown Tl2InGaSe4 crystals have been investigated by means of room temperature x-ray diffraction, and transmittance and reflectance spectral analysis, respectively. The x-ray diffraction technique has shown that Tl2InGaSe4 is a single phase crystal of a monoclinic unit cell that exhibits the lattice parameters of a = 0.77244 nm, b = 0.64945 nm, c = 0.92205 nm and beta = 95.03 degrees . The optical data have revealed an indirect allowed transition band ...
Citation Formats
A. Yarin, A. Güvenç Yazıcıoğlu, and C. Megaridis, “Thermal stimulation of aqueous volumes contained in carbon nanotubes: Experiment and modeling,” APPLIED PHYSICS LETTERS, vol. 86, no. 1, pp. 0–0, 2005, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/93587.