ORCID Profile
0000-0002-8052-428X
Current Organisation
University of Sussex
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Publisher: American Chemical Society (ACS)
Date: 25-01-2021
Publisher: American Chemical Society (ACS)
Date: 11-12-2018
Publisher: Elsevier BV
Date: 10-2016
Publisher: Elsevier BV
Date: 04-0006
Publisher: American Chemical Society (ACS)
Date: 29-06-2020
Publisher: American Chemical Society (ACS)
Date: 15-11-2018
Abstract: Graphene structural defects, namely edges, step-edges, and wrinkles, are susceptible to severe mechanical deformation and stresses under tribo-mechanical operations. Applied forces may cause deformation by folding, buckling, bending, and tearing of these defective sites of graphene, which lead to a remarkable decline in normal and friction load bearing capacity. In this work, we experimentally quantified the maximum sustainable normal and friction forces, corresponding to the damage thresholds of the different investigated defects as well as their pull-out (adhesion) forces. Horizontal wrinkles (with respect to the basal plane, i.e., folded) sustained the highest normal load, up to 317 nN, during sliding, whereas for vertical (i.e., standing) wrinkles, step-edges, and edges, the load bearing capacities are up to 113, 74, and 63 nN, respectively. The related deformation mechanisms were also experimentally investigated by varying the normal load up to the initiation of the damage from the defects and extended with the numerical results from molecular dynamics and finite element method simulations.
Publisher: Elsevier BV
Date: 10-2018
Publisher: American Chemical Society (ACS)
Date: 02-08-2019
Abstract: Nanohybrid materials based on nanoparticles of the intrinsically microporous polymer PIM-1 and graphene oxide (GO) are prepared from aqueous dispersions with a reprecipitation method, resulting in the surface of the GO sheets being decorated with nanoparticles of PIM-1. The significant blueshift in fluorescence signals for the GO/PIM-1 nanohybrids indicates modification of the optoelectronic properties of the PIM-1 in the presence of the GO due to their strong interactions. The stiffening in the Raman G peak of GO (by nearly 6 cm
Publisher: Wiley
Date: 08-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5NR06273J
Abstract: The tribological properties of metal-supported few-layered graphene depend strongly on the grain topology of the metal substrate.
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Manoj Tripathi.