Search Results - "Galvao, D.S."

Site-dependent hydrogenation on graphdiyne by Autreto, P.A.S., de Sousa, J.M., Galvao, D.S.

“…Graphene is one of the most important materials in science today due to its unique and remarkable electronic, thermal and mechanical properties. However in its…”
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Hierarchically buckled sheath-core fibers for superelastic electronics, sensors, and muscles by Liu, Z. F., Fang, S., Moura, F. A., Ding, J. N., Jiang, N., Di, J., Zhang, M., Lepró, X., Galvão, D. S., Haines, C. S., Yuan, N. Y., Yin, S. G., Lee, D. W., Wang, R., Wang, H. Y., Lv, W., Dong, C., Zhang, R. C., Chen, M. J., Yin, Q., Chong, Y. T., Zhang, R., Wang, X., Lima, M. D., Ovalle-Robles, R., Qian, D., Lu, H., Baughman, R. H.

“…Superelastic conducting fibers with improved properties and functionalities are needed for diverse applications. Here we report the fabrication of highly…”
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Mechanical properties and fracture patterns of graphene (graphitic) nanowiggles by Bizao, R.A., Botari, T., Perim, E., Pugno, Nicola M., Galvao, D.S.

“…Graphene nanowiggles (GNW) are graphene-based nanostructures obtained by making alternated regular cuts in pristine graphene nanoribbons. GNW were recently…”
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Hydrogen storage in carbon nanoscrolls: An atomistic molecular dynamics study by Braga, S.F., Coluci, V.R., Baughman, R.H., Galvão, D.S.

“…Carbon nanoscrolls are formed from helically wrapped graphite layers. Molecular dynamics simulations show that they can be attractive nanostructure for…”
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Elastic properties of graphyne-based nanotubes by De Sousa, J.M., Bizao, R.A., Sousa Filho, V.P., Aguiar, A.L., Coluci, V.R., Pugno, N.M., Girao, E.C., Souza Filho, A.G., Galvao, D.S.

“…[Display omitted] Graphyne nanotubes (GNTs) are nanostructures obtained from rolled up graphyne sheets, in the same way carbon nanotubes (CNTs) are obtained…”
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On the Mechanical Properties of Popgraphene‐Based Nanotubes: a Reactive Molecular Dynamics Study by Brandão, W. H. S., Aguiar, A. L., Ribeiro, L. A., Galvão, D. S., De Sousa, J. M.

“…Carbon‐based tubular materials have sparked a great interest in future electronics and optoelectronics device applications. In this work, we computationally…”
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Strong spatial beryllium doping selectivity on InGaP layers grown on pre-patterned GaAs substrates by chemical beam epitaxy by de Castro, M.P.P., von Zuben, A.A., Frateschi, N.C., Santo, L.L.E., Galvão, D.S., Bettini, J., de Carvalho, M.M.G.

“…We present an investigation of beryllium doping selectivity in InGaP layers grown by chemical beam epitaxy on pre-patterned substrates. We observed a…”
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Energy harvesting using two-dimensional magnesiochromite (MgCr2O4) by Mahapatra, P.L., Singh, A.K., Tromer, R., Kumbhakar, P., Sinha, S.K., Lahiri, B., Kundu, T.K., Galvao, D.S., Tiwary, C.S.

“…Two-dimensional (2D) materials with high surface activity can be utilized for harvesting energy from small mechanical sources using flexoelectricity. In the…”
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Synthesis of two-dimensional van der waals superlattices, heterostructures, and alloys from conversion of sequentially layered sub-nanometer metal films by Motala, M.J., Zhang, X., Kumar, P., Oliveira, E.F., Benton, A., Miesle, P., Rao, R., Stevenson, P.R., Moore, D., Alfieri, A., Lynch, J., Austin, D., Post, S., Gao, G., Ma, S., Zhu, H., Wang, Z., Petrov, I., Stach, E.A., Kennedy, W.J., Vangala, S., Tour, J.M., Galvao, D.S., Jariwala, D., Muratore, C., Snure, M., Ajayan, P.M., Glavin, N.R.

“…Manipulation of bulk material properties by controlling layer-by-layer chemistry and structure of nanomaterials has remained an overarching goal of nanoscience…”
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Torsional “superplasticity” of graphyne nanotubes by de Sousa, J.M., Brunetto, G., Coluci, V.R., Galvão, D.S.

“…Graphyne is a planar two-dimensional carbon allotrope formed by atoms in sp, sp2, and sp3 hybridized states. Topologically graphyne nanotubes (GNTs) can be…”
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Mechanical properties of tetragraphene single-layer: A molecular dynamics study by Brandão, Wjefferson H.S., Aguiar, Acrisio L., Fonseca, Alexandre F., Galvão, D.S., De Sousa, J.M.

“…Recently, a quasi-2D semiconductor carbon allotrope called tetragraphene (TG), was proposed. TG is composed of square and hexagonal rings. Some of the TG…”
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Computational study of elastic, structural stability and dynamics properties of penta-graphene membrane by De Sousa, J.M., Aguiar, A.L., Girão, E.C., Fonseca, Alexandre F., Souza Filho, A.G., Galvão, D.S.

“…Recently, a new two-dimensional carbon allotrope called Penta-graphene membrane was proposed. The Penta-graphene membrane exhibits interesting mechanical and…”
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2D Hemiporphyrazine: A new nanoporous material by Tromer, R.M., Pereira, M.L., Ribeiro, L.A., Galvão, D.S.

“…Crystalline microporous materials are solids formed by interconnected pores of less than 2 nm in size. Typically, they possess large surface areas desirable…”
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Dynamical formation of graphene and graphane nanoscrolls by Pereira Júnior, M.L., Ribeiro Júnior, L.A., Galvão, D.S., De Sousa, J.M.

“…[Display omitted] •The formation mechanism of double nanoscrolls is revealed.•Hydrogenation impact on the formation of carbon nanoscrolls is presented.•The…”
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A computational study on the mechanical properties of Pentahexoctite single-layer: Combining DFT and classical molecular dynamics simulations by Brandão, W.H.S., Aguiar, A.L., Ribeiro, L.A., Galvão, D.S., De Sousa, J.M.

“…Studies aimed at designing new allotropic forms of carbon have received much attention. Recently, a new 2D graphene-like allotrope named Pentahexoctite was…”
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Hydrogenation Dynamics Process of Single-Wall Carbon Nanotube Twisted by De Sousa, J.M., Autreto, P.A.S., Galvão, D.S.

“…[Display omitted] •Carbon nanotubes (CNTs) have been considered promissing nanostructures for new technological applications in several areas.•CNTs show…”
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Mechanical properties of single-walled penta-graphene-based nanotubes: A DFT and Classical molecular dynamics study by De Sousa, J.M., Aguiar, A.L., Girão, E.C., Fonseca, Alexandre F., Coluci, V.R., Galvão, D.S.

“…•Mechanical properties of different penta-graphene nanotubes were provided.•One type of PGNT presents less total energy than that of penta-graphene sheet.•All…”
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First-principles and reactive molecular dynamics study of the elastic properties of pentahexoctite-based nanotubes by Brandão, W.H.S., De Sousa, J.M., Aguiar, A.L., Galvão, D.S., Ribeiro, Luiz A., Fonseca, Alexandre F.

“…Pentahexoctite (PH) is a pure sp2 hybridized planar carbon allotrope whose structure consists of a symmetric combination of pentagons, hexagons, and octagons…”
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Dynamics and structural transformations of carbon onion-like structures under high-velocity impacts by Pereira Júnior, M.L., da Cunha, W.F., de Sousa Junior, R.T., Amvame Nze, G.D., Galvão, D.S., Ribeiro Júnior, L.A.

“…Carbon nano-onions (CNO) are multilayered fullerenes. They exhibit good electrical conductivity and large surface area, being of interest for several…”
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On the elastic properties of single-walled phagraphene nanotubes by Júnior, M.L. Pereira, De Sousa, J.M., Brandão, W.H.S., Aguiar, A.L., Bizao, R.A., Júnior, L.A. Ribeiro, Galvão, D.S.

“…[Display omitted] •First comprehensive study of the mechanical properties of phagraphene nanotubes.•Similar brittle fracture between phagraphene (PhaNTs) and…”
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