Search Results - "Galvão, Douglas S"

Torsional refrigeration by twisted, coiled, and supercoiled fibers by Wang, Run, Fang, Shaoli, Xiao, Yicheng, Gao, Enlai, Jiang, Nan, Li, Yaowang, Mou, Linlin, Shen, Yanan, Zhao, Wubin, Li, Sitong, Fonseca, Alexandre F, Galvão, Douglas S, Chen, Mengmeng, He, Wenqian, Yu, Kaiqing, Lu, Hongbing, Wang, Xuemin, Qian, Dong, Aliev, Ali E, Li, Na, Haines, Carter S, Liu, Zhongsheng, Mu, Jiuke, Wang, Zhong, Yin, Shougen, Lima, Márcio D, An, Baigang, Zhou, Xiang, Liu, Zunfeng, Baughman, Ray H

“…Higher-efficiency, lower-cost refrigeration is needed for both large- and small-scale cooling. Refrigerators using entropy changes during cycles of stretching…”
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Electrically, Chemically, and Photonically Powered Torsional and Tensile Actuation of Hybrid Carbon Nanotube Yarn Muscles by Lima, Márcio D., Li, Na, de Andrade, Mônica Jung, Fang, Shaoli, Oh, Jiyoung, Spinks, Geoffrey M., Kozlov, Mikhail E., Haines, Carter S., Suh, Dongseok, Foroughi, Javad, Kim, Seon Jeong, Chen, Yongsheng, Ware, Taylor, Shin, Min Kyoon, Machado, Leonardo D., Fonseca, Alexandre F., Madden, John D. W., Voit, Walter E., Galvão, Douglas S., Baughman, Ray H.

“…Artificial muscles are of practical interest, but few types have been commercially exploited. Typical problems include slow response, low strain and force…”
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Scalable Synthesis and Characterization of Multilayer γ‑Graphyne, New Carbon Crystals with a Small Direct Band Gap by Desyatkin, Victor G., Martin, William B., Aliev, Ali E., Chapman, Nathaniel E., Fonseca, Alexandre F., Galvão, Douglas S., Miller, Ericka Roy, Stone, Kevin H., Wang, Zhong, Zakhidov, Dante, Limpoco, F. Ted, Almahdali, Sarah R., Parker, Shane M., Baughman, Ray H., Rodionov, Valentin O.

“…γ-Graphyne is the most symmetric sp2/sp1 allotrope of carbon, which can be viewed as graphene uniformly expanded through the insertion of two-carbon acetylenic…”
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Structural and Thermal Stability of Graphyne and Graphdiyne Nanoscroll Structures by Solis, Daniel A, D. Borges, Daiane, Woellner, Cristiano F, Galvão, Douglas S

“…Graphynes and graphdiynes are generic names for families of two-dimensional carbon allotropes, where acetylenic groups connect benzenoid-like hexagonal rings,…”
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Strain Rate Dependent Shear Plasticity in Graphite Oxide by Vinod, Soumya, Tiwary, Chandra Sekhar, Machado, Leonardo D, Ozden, Sehmus, Cho, Juny, Shaw, Preston, Vajtai, Robert, Galvão, Douglas S, Ajayan, Pulickel M

“…Graphene oxide film is made of stacked graphene layers with chemical functionalities, and we report that plasticity in the film can be engineered by strain…”
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Selective Hydrogenation Promotes the Anisotropic Thermoelectric Properties of TPDH-Graphene by C. Oliveira, Caique, Galvão, Douglas S., Autreto, Pedro A. S.

“…We have combined density functional theory calculations with the Boltzmann semiclassical transport theory to investigate the effect of selective hydrogenation…”
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Self-tearing and self-peeling of folded graphene nanoribbons by Fonseca, Alexandre F., Galvão, Douglas S.

“…A recent experimental study showed that an induced folded flap of graphene can spontaneously drive itself its tearing and peeling off a substrate, thus…”
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Few-Wall Carbon Nanotube Coils by Nakar, Dekel, Gordeev, Georgy, Machado, Leonardo D, Popovitz-Biro, Ronit, Rechav, Katya, Oliveira, Eliezer F, Kusch, Patryk, Jorio, Ado, Galvão, Douglas S, Reich, Stephanie, Joselevich, Ernesto

“…While various electronic components based on carbon nanotubes (CNTs) have already been demonstrated, the realization of miniature electromagnetic coils based…”
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Mechanical, Electronic, and Optical Properties of 8‑16‑4 Graphyne: A 2D Carbon Allotrope with Dirac Cones by Tromer, Raphael M., Pereira Júnior, Marcelo L., L. Lima, Kleuton A., Fonseca, Alexandre F., da Silva, Luciano R., Galvão, Douglas S., Ribeiro Junior, Luiz. A.

“…Graphene’s success has led to the theoretical prediction and experimental synthesis of various 2D carbon-based allotropes. To explore the mechanical,…”
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Controlling Movement at Nanoscale: Curvature Driven Mechanotaxis by Machado, Leonardo D., Bizao, Rafael A., Pugno, Nicola M., Galvão, Douglas S.

“…Locating and manipulating nano‐sized objects to drive motion is a time and effort consuming task. Recent advances show that it is possible to generate motion…”
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Polyfuran-based chemical sensors: Identification of promising derivatives via DFT calculations and fully atomistic reactive molecular dynamics by Lascane, Leonardo G., Oliveira, Eliezer F., Galvão, Douglas S., Batagin-Neto, Augusto

“…[Display omitted] •New polyfuran derivatives were proposed and evaluated.•Simple relations between Hammett indexes and optoelectronic properties are…”
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Enhanced Elastocaloric Effects in γ-Graphyne by Kanegae, Guilherme B, Pereira Junior, Marcelo L, Galvão, Douglas S, Ribeiro Junior, Luiz A, Fonseca, Alexandre F

“…The global emphasis on sustainable technologies has become a paramount concern for nations worldwide. Specifically, numerous sustainable methods are being…”
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Solid-Vapor Reaction Growth of Transition-Metal Dichalcogenide Monolayers by Li, Bo, Gong, Yongji, Hu, Zhili, Brunetto, Gustavo, Yang, Yingchao, Ye, Gonglan, Zhang, Zhuhua, Lei, Sidong, Jin, Zehua, Bianco, Elisabeth, Zhang, Xiang, Wang, Weipeng, Lou, Jun, Galvão, Douglas S., Tang, Ming, Yakobson, Boris I., Vajtai, Robert, Ajayan, Pulickel M.

“…Two‐dimensional (2D) layered semiconducting transition‐metal dichalcogenides (TMDCs) are promising candidates for next‐generation ultrathin, flexible, and…”
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Exploring the elastic properties and fracture patterns of Me-graphene monolayers and nanotubes through reactive molecular dynamics simulations by Pereira, Marcelo L., De Sousa, José. M., Brandão, Wjefferson H.S., Galvão, Douglas. S., Fonseca, Alexandre F., Ribeiro, Luiz A.

“…Me-graphene (MeG) is a novel two-dimensional (2D) carbon allotrope. Due to its attractive electronic and structural properties, it is important to study the…”
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Defect-Free Carbon Nanotube Coils by Shadmi, Nitzan, Kremen, Anna, Frenkel, Yiftach, Lapin, Zachary J, Machado, Leonardo D, Legoas, Sergio B, Bitton, Ora, Rechav, Katya, Popovitz-Biro, Ronit, Galvão, Douglas S, Jorio, Ado, Novotny, Lukas, Kalisky, Beena, Joselevich, Ernesto

“…Carbon nanotubes are promising building blocks for various nanoelectronic components. A highly desirable geometry for such applications is a coil. However,…”
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Consolidation of functionalized graphene at ambient temperature via mechano-chemistry by Kabbani, Mohamad A., Kochat, Vidya, Bhowmick, Sanjit, Soto, Matias, Som, Anirban, Krishnadas, K.R., Woellner, Cristiano F., Jaques, Ygor M., Barrera, Enrique V., Asif, Syed, Vajtai, Robert, Pradeep, Thalappil, Galvão, Douglas S., Kabbani, Ahmad T., Tiwary, Chandra Sekhar, Ajayan, Pulickel M.

“…Graphitic solids are typically produced via high temperature and energy consuming processing (e.g. sintering) of carbon particles. Here, we demonstrate the…”
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New Zero Poisson's Ratio Structures by Gaal, Vladimir, Rodrigues, Varlei, Dantas, Socrates O., Galvão, Douglas S., Fonseca, Alexandre F.

“…Most materials exhibit positive Poisson's ratio (PR) values, but special structures can also present negative and, even rarer, zero (or close to zero) PR. Null…”
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Idealized Carbon-Based Materials Exhibiting Record Deliverable Capacities for Vehicular Methane Storage by Collins, Sean P, Perim, E, Daff, Thomas D, Skaf, Munir S, Galvão, Douglas S, Woo, Tom K

“…Materials for vehicular methane storage have been extensively studied, although no suitable material has been found. In this work, we use molecular simulation…”
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Mechano-chemical stabilization of three-dimensional carbon nanotube aggregates by Koizumi, Ryota, Hart, Amelia H.C., Brunetto, Gustavo, Bhowmick, Sanjit, Owuor, Peter S., Hamel, John T., Gentles, Anieph X., Ozden, Sehmus, Lou, Jun, Vajtai, Robert, Asif, S.A. Syed, Galvão, Douglas S., Tiwary, C.S., Ajayan, P.M.

“…Here we report a combined study of experiments and simulations to understand how chemical functional groups can mechanically stabilize aggregates of carbon…”
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Surface functionalization of two-dimensional metal chalcogenides by Lewis acid–base chemistry by Lei, Sidong, Wang, Xifan, Li, Bo, Kang, Jiahao, He, Yongmin, George, Antony, Ge, Liehui, Gong, Yongji, Dong, Pei, Jin, Zehua, Brunetto, Gustavo, Chen, Weibing, Lin, Zuan-Tao, Baines, Robert, Galvão, Douglas S., Lou, Jun, Barrera, Enrique, Banerjee, Kaustav, Vajtai, Robert, Ajayan, Pulickel

“…Precise control of the electronic surface states of two-dimensional (2D) materials could improve their versatility and widen their applicability in electronics…”
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