Academic literature on the topic 'Electronegative double layer'

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Journal articles on the topic "Electronegative double layer"

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Kawamura, E., A. J. Lichtenberg, M. A. Lieberman, and J. P. Verboncoeur. "Double layer formation in a two-region electronegative plasma." Physics of Plasmas 16, no. 12 (December 2009): 122114. http://dx.doi.org/10.1063/1.3276155.

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Chabert, P., A. J. Lichtenberg, and M. A. Lieberman. "Theory of a double-layer in an expanding electronegative plasma." Physics of Plasmas 14, no. 9 (September 2007): 093502. http://dx.doi.org/10.1063/1.2769989.

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Sharma, Shailesh, Chanel Linnane, David Gahan, Stephen Daniels, and Mike B. Hopkins. "Formation of a Double Layer in Electronegative ${\rm O}_{2}$ Plasma." IEEE Transactions on Plasma Science 42, no. 10 (October 2014): 2798–99. http://dx.doi.org/10.1109/tps.2014.2313179.

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Kolobov, V. I., and D. J. Economou. "Ion–ion plasmas and double layer formation in weakly collisional electronegative discharges." Applied Physics Letters 72, no. 6 (February 9, 1998): 656–58. http://dx.doi.org/10.1063/1.120837.

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Chabert, P., N. Plihon, C. S. Corr, J. L. Raimbault, and A. J. Lichtenberg. "Equilibrium model for two low-pressure electronegative plasmas connected by a double layer." Physics of Plasmas 13, no. 9 (September 2006): 093504. http://dx.doi.org/10.1063/1.2345353.

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Plihon, N., C. S. Corr, and P. Chabert. "Double layer formation in the expanding region of an inductively coupled electronegative plasma." Applied Physics Letters 86, no. 9 (February 28, 2005): 091501. http://dx.doi.org/10.1063/1.1869533.

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Mehdipoor, M., and T. Mohsenpour. "Some aspects of the double layer structure in magnetized electronegative plasmas with q-nonextensive electrons." Physics of Plasmas 22, no. 11 (November 2015): 112110. http://dx.doi.org/10.1063/1.4935698.

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McKay, Kirsty, Ding-Xin Liu, Felipe Iza, Ming-Zhe Rong, and Michael G. Kong. "Double-Layer Structures in Low-Temperature Atmospheric-Pressure Electronegative RF Microplasmas: Separation of Electrons and Anions." IEEE Transactions on Plasma Science 39, no. 11 (November 2011): 2138–39. http://dx.doi.org/10.1109/tps.2011.2156815.

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Chen, Xiao Feng, Ying Jun Wang, Na Ru Zhao, Jian Dong Ye, Yu Dong Zheng, Cheng Yun Ning, and Gang Wu. "Microstructure and Bio-Mineralization Behavior of the Sol-Gel Derived Bioactive Materials." Key Engineering Materials 280-283 (February 2007): 1609–12. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1609.

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The biomaterials in system CaO-P2O5-SiO2 were synthesized via sol-gel method. The biomaterials can be applied to bone reparation and bone tissue engineering scaffolds The nano-pore structure, degradability, bioactivity and bio-mineralization characteristic of the biomaterials were investigated in details using XRD, SEM/EDX, FTIR, BET and DSC/TG techniques. It was indicated that the sol-gel derived biomaterials have a higher bioactivity than that of the melt derived bioactive glasses or glass-ceramics. It just takes 4-8 hours for HCA to form on the surface of the sol-gel samples in SBF solution at 37°C. The spherical HCA crystal clusters formed on the surface of the sol-gel derived samples immersed in SBF for 8 hours have a low crystallinity. Owing to their interconnected nano-sized pores, the sol-gel samples possess much higher surface areas and the hydrous porous SiO2 gel layer containing a great amount of ºSi-OH groups can be rapidly formed on the biomterials’ surface through a quick ion exchange between H3O+ in the solution and Ca2+ in the surface of the materials. ºSi-OH groups can play a very important role in inducing formation of HCA. They make the material surfaces electronegative, which resulted in a double electrode layer formed between the samples surface and SBF solution. The double electrode layer is in favor of formation of HCA on the surface of the materials.
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Meige, A., N. Plihon, G. J. M. Hagelaar, J. P. Boeuf, P. Chabert, and R. W. Boswell. "Propagating double layers in electronegative plasmas." Physics of Plasmas 14, no. 5 (May 2007): 053508. http://dx.doi.org/10.1063/1.2736946.

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Dissertations / Theses on the topic "Electronegative double layer"

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Meige, Albert, and albert@meige net. "Numerical modeling of low-pressure plasmas: applications to electric double layers." The Australian National University. Research School of Physical Sciences and Engineering, 2006. http://thesis.anu.edu.au./public/adt-ANU20070111.002333.

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Inductive plasmas are simulated by using a one-dimensional particle-in-cell simulation including Monte Carlo collision techniques (pic/mcc). To model inductive heating, a non-uniform radio-frequency (rf) electric field, perpendicular to the electron motion is included into the classical particle-in-cell scheme. The inductive plasma pic simulation is used to confirm recent experimental results that electric double layers can form in current-free plasmas. These results differ from previous experimental or simulation systems where the double layers are driven by a current or by imposed potential differences. The formation of a super-sonic ion beam, resulting from the ions accelerated through the potential drop of the double layer and predicted by the pic simulation is confirmed with nonperturbative laser-induced fluorescence measurements of ion flow. It is shown that at low pressure, where the electron mean free path is of the order of, or greater than the system length, the electron energy distribution function (eedf) is close to Maxwellian, except for its tail which is depleted at energies higher than the plasma potential. Evidence supporting that this depletion is mostly due to the high-energy electrons escaping to the walls is given. ¶ A new hybrid simulation scheme (particle ions and Boltzmann/particle electrons), accounting for non-Maxwellian eedf and self-consistently simulating low-pressure high-density plasmas at low computational cost is proposed. Results obtained with the “improved” hybrid model are in much better agreement with the full pic simulation than the classical non self-consistent hybrid model. This model is used to simulate electronegative plasmas and to provide evidence supporting the fact that propagating double layers may spontaneously form in electronegative plasmas. It is shown that critical parameters of the simulation were very much aligned with critical parameters of the experiment.
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Meige, Albert. "Numerical modeling of low-pressure plasmas: applications to electric double layers." Phd thesis, 2006. http://hdl.handle.net/1885/45749.

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Inductive plasmas are simulated by using a one-dimensional particle-in-cell simulation including Monte Carlo collision techniques (pic/mcc). To model inductive heating, a non-uniform radio-frequency (rf) electric field, perpendicular to the electron motion is included into the classical particle-in-cell scheme. The inductive plasma pic simulation is used to confirm recent experimental results that electric double layers can form in current-free plasmas. These results differ from previous experimental or simulation systems where the double layers are driven by a current or by imposed potential differences. The formation of a super-sonic ion beam, resulting from the ions accelerated through the potential drop of the double layer and predicted by the pic simulation is confirmed with nonperturbative laser-induced fluorescence measurements of ion flow. It is shown that at low pressure, where the electron mean free path is of the order of, or greater than the system length, the electron energy distribution function (eedf) is close to Maxwellian, except for its tail which is depleted at energies higher than the plasma potential. Evidence supporting that this depletion is mostly due to the high-energy electrons escaping to the walls is given. ¶ A new hybrid simulation scheme (particle ions and Boltzmann/particle electrons), accounting for non-Maxwellian eedf and self-consistently simulating low-pressure high-density plasmas at low computational cost is proposed. Results obtained with the “improved” hybrid model are in much better agreement with the full pic simulation than the classical non self-consistent hybrid model. This model is used to simulate electronegative plasmas and to provide evidence supporting the fact that propagating double layers may spontaneously form in electronegative plasmas. It is shown that critical parameters of the simulation were very much aligned with critical parameters of the experiment.
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Book chapters on the topic "Electronegative double layer"

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Kumar Cheedarala, Ravi. "3D Ionic Networked Hydrophilic-Hydrophobic Nano Channeled Triboelectric Nanogenerators." In Novel Nanomaterials. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95324.

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The power demand is increasing day by day owing to the diminishing of fossil fuel reserves on the globe. To overcome the future energy crises, there is a strong need to fulfill the energy loophole by novel technologies such as triboelectric nanogenerators to harvest miniature resources from renewable natural resources. Here, I discussed the synthesis and fabrication of novel triboelectric nanogenerators (TENGs) using highly reproducible power generators as electropositive surfaces from the monomers of naphthalene tetracarboxylic dianhydride, benzdiene diamine, and sulfonated polyimide (Bno-Spi), and modified nonwoven carbon fibers (Wcf) and polytetrafluoroethylene (PTFE) and polyvinylidene difluoride (PVDF) as electronegative TENG electrodes, respectively. Here, novel double characteristic hydrophilic and hydrophobic nano-channels concerned with Bno-Spi films were proposed through contact electrification process through ion and electron transfer by an electron-donor-acceptor complex mechanism. The proposed Bno-Spi-TENG system High triboelectric open circuit voltage 75 V (Voc) and short circuit current 1 μA (Jsc) have been achieved from Bno-Spi-TENGs, in particular, and for SO3H.Bno-Spi-TENG at 6 Hz. Besides that, we used improved knitted woven carbon fiber composite (wcf-COOH), as one of the TENGs to generate a greater open-circuit voltage (Voc), and short circuit current (Isc). Also, I aimed the contact and separation mode TENG which is using spring structure through oxidation of Wcf into Wcf-COOH followed by coupling of aniline through and one-step oxidative polymerization to get woven carbon fiber-polyaniline emraldine salt (Wcf-Pani.Es). The Wcf-PANI.Es composite film (thickness ~ 100 nm) shows the surface resistivity of 0.324 Ω m, and functions as a rubbing surface to produce charges through harvesting of energy using vertical contact-separation mode TENG. The vibrant exchanges of novel Wcf-Pani.Es, and PVDF membrane produced higher Voc of 95 V, and Isc of 180 μA, correspondingly. In specific, Wcf-Pani.Es -TENG is shown an enhancement of 498% of Voc concerning Wcf-COOH-TENG due to the availability of the Pani.Es layer. The novel Bno-Spi-TENGs and Wcf-Pani.Es are the potential candidates for fulfilling the need for improved energy harvesting devices as an alternate substantial choice for contact-separation mode TENGs.
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Conference papers on the topic "Electronegative double layer"

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Kawamura, E., M. A. Lieberman, A. J. Lichtenberg, and J. P. Verboncoeur. "Double layer formation in a two-region electronegative plasma." In 2009 IEEE 36th International Conference on Plasma Science (ICOPS). IEEE, 2009. http://dx.doi.org/10.1109/plasma.2009.5227251.

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Mannan, A., A. A. Mamun, and P. K. Shukla. "Nonplanar ion-acoustic gardner solitons and double layers in electronegative plasma with nonthermal electrons." In 2012 IEEE 39th International Conference on Plasma Sciences (ICOPS). IEEE, 2012. http://dx.doi.org/10.1109/plasma.2012.6383589.

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Hershkowitz, Noah, Young-chul Ghim, and Chi-Shung Yip. "Do double layers separate an electronegative core and an electropositive halo in weakly collisional negative ion plasmas?*." In 2009 IEEE 36th International Conference on Plasma Science (ICOPS). IEEE, 2009. http://dx.doi.org/10.1109/plasma.2009.5227734.

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Henderson, C., and N. Hershkowitz. "Simulation of Current Free Double layers in highly electronegative plasma using Monte Carlo Collision in OOPIC Pro and XOOPIC." In 2011 IEEE 38th International Conference on Plasma Sciences (ICOPS). IEEE, 2011. http://dx.doi.org/10.1109/plasma.2011.5992901.

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