38 Matching Results

Search Results

Results: 1 - 24 next
open access

Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions

Description: Article investigates the influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of 𝑉𝑂π‘₯ films. The results presented in this work provide a better understanding of 𝑉𝑂π‘₯-based composites, thereby enabling the development of new, versatile and functional materials for device applications.
Date: February 12, 2023
Creator: Philipose, Usha; Littler, Chris; Jiang, Yan; Naciri, Alia; Harcrow, Michael & Syllaios, A. J.
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Triplet photosensitizer-nanotube conjugates: synthesis, characterization and photochemistry of charge stabilizing, palladium porphyrin/carbon nanotube conjugates

Description: Author Manuscript version of an article investigating the ability of a triplet photosensitizer to generate long-lived charge separated states, in contrast to traditionally used singlet photosensitizers, in covalently functionalized single-walled carbon nanotube hybrids.
Date: April 21, 2020
Creator: Arellano, Luis M.; Gobeze, Habtom B.; GΓ³mez-Escalonilla, MarΓ­a J.; Fierro, Jose Luis G.; D'Souza, Francis & Langa, Fernando
Item Type: Refine your search to only Article
Partner: University of North Texas
open access

Resistant energy analysis of self-pulling process during dropwise condensation on superhydrophobic surfaces

Description: Article describes an energy-based analysis on the formation and growth of condensate droplets on two-tier superhydrophobic surfaces, which are fabricated by decorating carbon nanotubes (CNTs) onto microscale fluorinated pillars.
Date: December 20, 2018
Creator: Vandadi, Aref; Zhao, Lei & Cheng, Jiangtao
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Low-Energy Electron Irradiation of Preheated and Gas-Exposed Single-Wall Carbon Nanotubes

Description: We investigate the conditions under which electron irradiation of single-walled carbon nanotube (SWCNT) bundles with 2 keV electrons produces an increase in the Raman D peak. We find that an increase in the D peak does not occur when SWCNTs are preheated in situ at 600 C for 1 h in ultrahigh vacuum (UHV) before irradiation is performed. Exposing SWCNTs to air or other gases after preheating in UHV and before irradiation results in an increase in the D peak. Small diameter SWCNTs that are not pr… more
Date: December 2016
Creator: Ecton, Philip
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Description: This review contains the authors' recent progress on the design and fabrication of 3D carbon nanostructures, their performance in Li-ion batteries (LIBs), and their implementation into large-scale, lightweight, and flexible LIBs.
Date: October 26, 2016
Creator: Kang, Chiwon; Cha, Eunho; Patel, Mumukshu D.; Wu, H. Felix & Choi, Wonbong
Item Type: Refine your search to only Review
Partner: UNT College of Engineering
open access

Rationally designed graphene-nanotube 3D architectures with a seamless nodal junction for efficient energy conversion and storage

Description: This article discusses the development of a strategy of creating 3D graphene-carbon nanotube hollow fibers with radially aligned CNTs (RACNTs) seamless sheathed by a cylindrical graphene layer through a one-step chemical vapor deposition using an anodized aluminum wire template.
Date: September 4, 2015
Creator: Xue, Yuhua; Ding, Yong; Niu, Jianbing; Xia, Zhenhai; Roy, Ajit; Chen, Hao et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Effect of surfactants on pressure-sensitivity of carbon nanotube filled cement mortar composites

Description: In this article, the pressure-sensitivity of CNT filled cement mortar composites with different concentrations of MWNT and different surfactants is investigated under repeated loading and impulsive loading, respectively. Experimental results indicate that the response of the electrical resistance of composites with NaDDBS to external force is more stable and sensitive than that of composites with SDS. Therefore, NaDDBS has higher efficiency than SDS for the dispersion of MWNT in cement mortar, … more
Date: November 6, 2014
Creator: Han, Baoguo & Yu, Xun
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Polymeric Materials Reinforced with Multiwall Carbon Nanotubes: A Constitutive Material Model

Description: This article discusses the modification of an existing material model to take into account softening and residual strain effects observed in polymeric materials reinforced with carbon nanotubes when subjected to loading and unloading cycles.
Date: July 16, 2013
Creator: CΓ³rdova, RenΓ© K.; ElΓ­as-ZΓΊΓ±iga, Alex; Elizalde, Luis E.; Siller Carrillo, HΓ©ctor Rafael; SΓ‘nchez, JosΓ© Antonio; RodrΓ­guez, Ciro A. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

High-Precision Micropipette Thermal Sensor for Measurement of Thermal Conductivity of Carbon Nanotubes Thin Film

Description: The thesis describes novel glass micropipette thermal sensor fabricated in cost-effective manner and thermal conductivity measurement of carbon nanotubes (CNT) thin film using the developed sensor. Various micrometer-sized sensors, which range from 2 Β΅m to 30 Β΅m, were produced and tested. The capability of the sensor in measuring thermal fluctuation at micro level with an estimated resolution of Β±0.002oC is demonstrated. The sensitivity of sensors was recorded from 3.34 to 8.86 Β΅V/oC, which is … more
Date: August 2011
Creator: Shrestha, Ramesh
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Mechanism and the Effect of Microwave-Carbon Nanotube Interaction

Description: A series of experimental results about unusual heating of carbon nanotubes by microwaves is analyzed in this dissertation. Two of vibration types, cantilever type (one end is fixed and the other one end is free), the second type is both ends are fixed, have been studied by other people. A third type of forced vibration of carbon nanotubes under an alternating electromagnetic field is examined in this paper. Heating of carbon nanotubes (CNTs) by microwaves is described in terms of nonlinear dyna… more
Date: December 2005
Creator: Ye, Zhou
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Effective dielectric constants of photonic crystal of aligned anisotropic cylinders and the optical response of a periodic array of carbon nanotubes

Description: This article discusses effective dielectric constants of photonic crystal of aligned anisotropic cylanders and the optical response of a periodic array of carbon nanotubes.
Date: October 25, 2005
Creator: Reyes, E.; Krokhin, Arkadii A. & Roberts, James A.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Charge Interaction Effects in Epoxy with Cation Exchanged Montmorillonite Clay and Carbon Nanotubes.

Description: The influence of charge heterogeneity in nanoparticles such as montmorillonite layered silicates (MLS) and hybrid systems of MLS + carbon nanotubes was investigated in cured and uncured epoxy. Epoxy nanocomposites made with cation-exchanged montmorillonite clay were found to form agglomerates near a critical concentration. Using differential scanning calorimetry it was determined that the mixing temperature of the epoxy + MLS mixture prior to the addition of the curing agent critically influenc… more
Date: May 2005
Creator: Butzloff, Peter Robert
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A magnetorheological study of single-walled and multi-walled carbon nanotube dispersions in mineral oil and epoxy resin.

Description: Single wall carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) were dispersed in mineral oil and epoxy resin. The magnetorheological properties of these dispersions were studied using a parallel plate rheometer. Strain sweeps, frequency sweeps, magneto sweeps and steady shear tests were conducted in various magnetic fields. G', G", h* and ty increased with increasing magnetic field, which was partially attributed to the increasing degree of the alignment of nanotubes in a strong… more
Date: May 2005
Creator: Yang, Zhengtao
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
Back to Top of Screen