Results 61 to 70 of about 2,946,685 (403)

Enhanced Efficiency in Dye-Sensitized Solar Cells by Electron Transport and Light Scattering on Freestanding TiO2 Nanotube Arrays

Nanomaterials, 2017
Dye-sensitized solar cells (DSSCs) were fabricated with closed- or open-ended freestanding TiO2 nanotube arrays as photoelectrodes that were decorated with carbon materials and large TiO2 nanoparticles (NPs) to enhance energy conversion efficiency.
Won-Yeop Rho, Da Hyun Song, Sang Hun Lee, Bong-Hyun Jun   +3 more
doaj   +1 more source

Enhancement of Friction between Carbon Nanotubes: An Efficient Strategy to Strengthen Fibers

, 2009
Interfacial friction plays a crucial role in the mechanical properties of carbon nanotube based fibers, composites, and devices. Here we use molecular dynamics simulation to investigate the pressure effect on the friction within carbon nanotube bundles ...
Berendsen H. J. C., Brenner D. W., Cumings J., Dienwiebel M., Dumitrica T., Elliott J. A., Elliott J. A., Gadagkar V., Hearle J. W. S., Li Q., Lu J. P., Mao Z., Motta M., Motta M., Peters M. J., Qian D., Ruoff R. S., Salvetat J.-P., Shanavas K. V., Sun D. Y., Syue S.-H., Tran C. D., Treacy M. M. J., Venkateswaran U. D., Yang T., Ye X., Ye X., Yu M.-F., Zang J., Zhang M., Zhang X., Zhang X., Zhang X. H., Zhang X. H., Zhang X. H., Zhang X.-H.   +35 more
core   +1 more source

Electron transport in semiconducting carbon nanotubes with hetero-metallic contacts [PDF]

, 2004
We present an atomistic self-consistent study of the electronic and transport properties of semiconducting carbon nanotube in contact with metal electrodes of different work functions, which shows simultaneous electron and hole doping inside the nanotube
, Datta S, Dekker C, Hoffmann R, Mark A Ratner, Rochefort A, Xue Y, Xue Y, Yongqiang Xue   +8 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Quantum conductance of a helically coiled carbon nanotube

Science and Technology of Advanced Materials, 2005
Using a π-orbital tight-binding model, we investigate the transport properties of a coiled carbon nanotube (also called carbon nanotube spring), which we construct by connecting carbon nanotubes periodically in three-dimensional (3D) space.
Wengang Lu
doaj  

Impact of topological line defects on wall roughness and thermal conductivity of carbon nanotubes: A molecular dynamics study

AIP Advances, 2019
Understanding the influence of defects on thermal conductivity of nanowires and nanomaterials is important due to its application for heat management in the nanodevices.
Farrokh Yousefi, Farhad Khoeini
doaj   +1 more source

Theory of superconductivity of carbon nanotubes and graphene

, 2006
We present a new mechanism of carbon nanotube superconductivity that originates from edge states which are specific to graphene. Using on-site and boundary deformation potentials which do not cause bulk superconductivity, we obtain an appreciable ...
Bachtold A., Barnett R., Connétable D., Dubay O., Eliashberg G. M., Fujita M., Fujita M., Haruyama J., Jiang J., Kamide K., Kasumov A. Y., Kevan S. D., Kobayashi Y., Kulik I. O., Nakada K., Nambu Y., Niimi Y., Porezag D., Saito R., Sasaki K., Sasaki K., Sasaki K., Sugawara K., Suzuura H., Takesue I., Tang Z. K., Wakabayashi K.   +26 more
core   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Stabilization of carbon nanotubes by filling with inner tubes: An optical spectroscopy study on double-walled carbon nanotubes under hydrostatic pressure

, 2012
The stabilization of carbon nanotubes via the filling with inner tubes is demonstrated by probing the optical transitions in double-walled carbon nanotube bundles under hydrostatic pressure with optical spectroscopy.
Anis, B., Börrnert, F., Dunsch, L., Haubner, K., Kuntscher, C. A., Rümmeli, M. H.   +5 more
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source