Results 41 to 50 of about 365,943 (301)

Raman spectroscopy of graphene under ultrafast laser excitation [PDF]

EPJ Web of Conferences, 2019
The out-of-equilibrium Raman response of graphene is addressed by pulsed laser excitation. Phonon spectrum is rationalized by revisiting the electron-phonon picture in the light of a transient broadening of the Dirac cone.
Ferrante Carino, Virga Alessandra, Benfatto Lara, Martinati Miles, De Fazio Domenico, Sassi Ugo, Fasolato Claudia, Ott Anna K., Postorino Paolo, Yoon Duhee, Cerullo Giulio, Mauri Francesco, Ferrari Andrea C., Scopigno Tullio   +13 more
doaj   +1 more source

Use of Functionalized Graphene-Based Materials on Grease

Lubricants, 2023
The growing awareness of reduced friction losses and new demands for electrical powertrains demand improved lubricants. Due to their unique properties, such as high thermal and electrical conductivity, graphene and its derivatives have been investigated ...
Eduardo Tomanik, Paulo Berto, Wania Christinelli, Gabriela Papoulias, Xavier Raby, Valdirene Peressinotto   +5 more
doaj   +1 more source

Graphene nanoplatelets in epoxy system: dispersion, reaggregation, and mechanical properties of nanocomposites [PDF]

, 2015
The use of graphene nanocomposites in advanced applications has attracted much attention in recent years. However, in order to substitute traditional epoxy reinforcements with graphene, there are still some issues like dispersion, homogenization, and ...
Wei, Jiacheng, Inam, Fawad, Vo, Thuc, Atif, Rasheed   +3 more
core   +1 more source

Growth mechanism of graphene-skinned glass fibre fabrics driven by various carbon sources

Nano Research
The direct growth of graphene via chemical vapour deposition on dielectric materials is a promising approach for transfer-free applications. However, large-scale production using this technique is hindered by the slow growth on non-catalytic substrates ...
Jianjian Shi, Chaojie Yu, Ruojuan Liu, Zhiyu Jing, Xiucai Sun, Wei Gu, Longfei Liu, Wanjian Yin, Yue Qi, Xiaoli Sun, Zhongfan Liu   +10 more
doaj   +1 more source

Wien effect in interfacial water dissociation through proton-permeable graphene electrodes

Nature Communications, 2022
Direct observation of electric field effects in the water dissociation reaction remains elusive. Here, the authors report an exponential acceleration of the reaction as function of the interfacial electric field using graphene electrodes decorated with ...
J. Cai, E. Griffin, V. H. Guarochico-Moreira, D. Barry, B. Xin, M. Yagmurcukardes, S. Zhang, A. K. Geim, F. M. Peeters, M. Lozada-Hidalgo   +9 more
doaj   +1 more source

Scattering of Graphene Plasmons by Defects in the Graphene Sheet [PDF]

ACS Nano, 2013
A theoretical study is presented on the scattering of graphene surface plasmons by defects in the graphene sheet they propagate in. These defects can be either natural (as domain boundaries, ripples and cracks, among others) or induced by an external gate.
García Pomar, Juan Luis, Nikitin, Alexey Y., Martín-Moreno, Luis   +2 more
openaire   +4 more sources

Investigations of Vacancy Structures Related to Their Growth in h-BN Sheet

Nanoscale Research Letters, 2017
The atomic, electronic, and magnetic properties of vacancy structures with triangular shape related to their growth in single hexagonal boron nitride (h-BN) sheet are investigated using density functional theory calculations.
Junga Ryou, Jinwoo Park, Suklyun Hong
doaj   +1 more source

Water friction in nanofluidic channels made from two-dimensional crystals

Nature Communications, 2021
Flow through nanometer scale channels facilitates an unmasked study of water-surface molecular interactions. Here, Keerthi et al. show with conduits made from graphite and hexagonal boron nitride that strong hydrophobicity does not rule out enhanced ...
Ashok Keerthi, Solleti Goutham, Yi You, Pawin Iamprasertkun, Robert A. W. Dryfe, Andre K. Geim, Boya Radha   +6 more
doaj   +1 more source

Review and recent development of lithium-sulfur batteries

Journal of Aeronautical Materials, 2022
Lithium-sulfur battery is a kind of energy storage system with high specific capacity, low production cost and environmental friendliness. It has great development potential and application prospect in portable electronic device energy storage.
YAN Shaojiu, YANG Xiaochen, WANG Chaojun, CHEN Xiang, LIU Jiarang, NAN Wenzheng, LIU Jin   +6 more
doaj   +1 more source

Graphene–Graphene Interactions: Friction, Superlubricity, and Exfoliation [PDF]

Advanced Materials, 2018
AbstractGraphite's lubricating properties due to the “weak” interactions between individual layers have long been known. However, these interactions are not weak enough to allow graphite to readily exfoliate into graphene on a large scale. Separating graphite layers down to a single sheet is an intense area of research as scientists attempt to utilize ...
Robert C. Sinclair, James L. Suter, Peter V. Coveney   +2 more
openaire   +2 more sources