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W. Joshua Kennedy
Researcher at Air Force Research Laboratory
Publications - 24
Citations - 373
W. Joshua Kennedy is an academic researcher from Air Force Research Laboratory. The author has contributed to research in topics: Carbon nanotube & MXenes. The author has an hindex of 7, co-authored 21 publications receiving 158 citations. Previous affiliations of W. Joshua Kennedy include Universal Technical Institute & Wright-Patterson Air Force Base.
Papers
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Journal ArticleDOI
Halogen Etch of Ti3AlC2 MAX Phase for MXene Fabrication.
Ali Jawaid,Asra Hassan,Asra Hassan,Gregory Neher,Gregory Neher,Dhriti Nepal,Ruth Pachter,W. Joshua Kennedy,S. Ramakrishnan,Richard A. Vaia +9 more
TL;DR: In this article, a room-temperature etching method that utilizes halogens in anhydrous media to synthesize MXenes from Ti3AlC2 has been presented, which provides opportunities for controlled surface chemistries to modulate MXene properties.
Journal ArticleDOI
A novel path towards synthesis of nitrogen-rich porous carbon nanofibers for high performance supercapacitors
TL;DR: In this article, a facile and efficient nitrogen doping strategy is proposed to improve the nitrogen content, increase surface area, and tune the configuration of nitrogen-related defects in the carbon nanostructures for application as supercapacitors.
Journal ArticleDOI
Electron-Withdrawing Effect of Native Terminal Groups on the Lattice Structure of Ti3C2Tx MXenes Studied by Resonance Raman Scattering: Implications for Embedding MXenes in Electronic Composites
David B. Lioi,David B. Lioi,Gregory Neher,Gregory Neher,James E. Heckler,James E. Heckler,Tyson C. Back,Faisal Mehmood,Dhriti Nepal,Ruth Pachter,Richard A. Vaia,W. Joshua Kennedy +11 more
TL;DR: In this paper, a fundamental understanding of 2D materials at the scale of individu(e.g., Xenes) is presented. But the authors do not consider the properties of Xenes at the individual level.
Journal ArticleDOI
Chemical dynamics characteristics of Kapton polyimide damaged by electron beam irradiation
Ali Rahnamoun,Daniel P. Engelhart,Sunita Humagain,Hilmar Koerner,Elena Plis,W. Joshua Kennedy,Russell Cooper,Steven Greenbaum,Ryan Hoffmann,Adri C. T. van Duin +9 more
TL;DR: In this paper, the effect of electron irradiation on the breaking of inter-molecular bonds and creation of free radicals in Kapton polyimide was studied using reactive molecular dynamics simulation with the polarizable ReaxFF method and experimentally on pristine and electron irradiated polyimides by vibrational spectroscopy, electron paramagnetic resonance, nuclear magnetic resonance, wide angle xray diffraction, small angle x-ray scattering, and dynamic mechanical analysis.
Journal ArticleDOI
Long-Lived Charged States in Single-Walled Carbon Nanotubes
Christoph Gadermaier,Enzo Menna,Moreno Meneghetti,W. Joshua Kennedy,Z. Valy Vardeny,Guglielmo Lanzani +5 more
TL;DR: Continuous wave photoinduced absorption spectroscopy of single-walled carbon nanotubes dispersed in a polymer matrix points to an efficient migration of the photoexcited states, either the singlet excitons or the charges resulting from their dissociation.