Strain effects on hydrogen storage capability of metal-decorated graphene: A first-principles study

Miao Zhou; Yunhao Lu; Chun Zhang; Yuan Ping Feng
September 2010
Applied Physics Letters;9/6/2010, Vol. 97 Issue 10, p103109
Academic Journal
We report an investigation on strain-engineered adsorption of metal atoms on graphene and hydrogen storage capabilities of metal-decorated graphene by using first-principles approach based on density functional theory. We show that an applied strain not only stabilizes the supported metal atoms and prevents them from clustering but further increases the hydrogen storage capacity. Specifically, a tensile strain of 10% in graphene increases the adsorption energy of Li (Ti) atom by around 75% (71%) and the gravimetric density of hydrogen storage up to 15.4 wt % (9.5 wt %), with a binding energy of ∼0.2 eV/H2.


Related Articles

  • Atomic-force-microscopy investigation of the formation and evolution of Ge islands on Ge[sub x]Si[sub 1-x] strained layers. Huang, C. J.; Hunag, C.J.; Li, D. Z.; Li, D.Z.; Yu, Z.; Cheng, B. W.; Cheng, B.W.; Yu, J. Z.; Yu, J.Z.; Wang, Q. M.; Wang, Q.M. // Applied Physics Letters;7/17/2000, Vol. 77 Issue 3 

    A constant amount of Ge was deposited on strained Ge[sub x]Si[sub 1-x] layers of approximately the same thickness but with different alloy compositions, ranging from x=0.06 to x=0.19. From their atomic-force-microscopy images, we found that both the size and density of Ge islands increased with...

  • The physics of phages. Gelbart, William M.; Knobler, Charles M. // Physics Today;Jan2008, Vol. 61 Issue 1, p42 

    The article discusses the energetics behind packaging a virus with DNA and the DNA's injection into a cell and the role played by phages. The author states that viruses have played an important role in the question of how simple a biological system must be before attempts to understand it from a...

  • Formation mechanism of hydrogen-associated defect centers at silica optical fiber surfaces. Hibino, Yoshinori; Hanafusa, Hiroaki // Journal of Applied Physics;3/1/1987, Vol. 61 Issue 5, p1806 

    Presents information on a study which examined the influences on the 11.9-megaton (mT) center of the drawing-induced strain and adsorbed water molecules at the fiber surface. Measurement of the electron spin resonance spectrum; Investigation of the formation mechanism of the 11.9-mT center;...

  • Atomic Force Microscopy Investigation of Ribonuclease A. Paulino da Silva, Luciano // Protein & Peptide Letters;Aug2001, Vol. 8 Issue 5, p343 

    Ribonuclease A (RNase A) molecules have been adsorbed onto mica surfaces from aqueous solution at pH 7.4. Atomic force microscopy (AFM) images of native RNase A show aggregates of monomers each having a diameter of 9 nm. This is consistent with a globular unit the size of which would be...

  • Near the static fatigue limit in glass. Wiederhorn, S. M.; Dretzke, A.; Rödel, J. // International Journal of Fracture;May2003, Vol. 121 Issue 1/2, p1 

    Fracture surfaces formed near the crack growth threshold in soda-lime-silicate glass are examined by atomic force microscopy. Cracks held below the apparent crack growth threshold for 16 h alter their mode of growth. The fracture plane changes from a flat surface to one that exhibits substantial...

  • Time-Dependent Degradation of AlGaN/GaN Heterostructures Grown on Silicon Carbide. Gotthold, David W.; Guo, S. P.; Birkhahn, R.; Albert, B.; Florescu, D.; Peres, B. // Journal of Electronic Materials;May2004, Vol. 33 Issue 5, p408 

    The AlGaN/GaN heterostructure field-effect transistors (HFETs) were grown on 4H-SiC substrates by metal-organic chemical-vapor deposition (MOCVD) with a range of A1 compositions (30-35%) and AlGaN barrier thicknesses. Films with higher strains exhibited a time-dependent degradation of the...

  • Cantilever surface stress sensors with single-crystalline silicon piezoresistors. Rasmussen, P. A.; Hansen, O.; Boisen, A. // Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p203502 

    We present a cantilever with piezoresistive readout optimized for measuring the static deflection due to isotropic surface stress on the surface of the cantilever [Sens. Actuators B 79(2–3), 115 (2001)]. To our knowledge nobody has addressed the difference in physical regimes, and its...

  • Mechanics and contraction dynamics of single platelets and implications for clot stiffening. Lam, Wilbur A.; Chaudhuri, Ovijit; Crow, Ailey; Webster, Kevin D.; Tai-De Li; Kita, Ashley; James Huang; Fletcher, Daniel A. // Nature Materials;Jan2011, Vol. 10 Issue 1, p61 

    Platelets interact with fibrin polymers to form blood clots at sites of vascular injury. Bulk studies have shown clots to be active materials, with platelet contraction driving the retraction and stiffening of clots. However, neither the dynamics of single-platelet contraction nor the strength...

  • Effects of the lateral ordering of self-assembled SiGe nanoislands grown on strained SiGe buffer layers. Strelchuk, V.; Nikolenko, A.; Lytvyn, P.; Kladko, V.; Gudymenko, A.; Valakh, M.; Krasilnik, Z.; Lobanov, D.; Novikov, A. // Semiconductors;May2012, Vol. 46 Issue 5, p647 

    Atomic-force microscopy, micro-Raman spectroscopy, and high resolution X-ray diffraction are applied to study the spatial ordering in single layers of SiGe nanoislands grown on a strained SiGe buffer sublayer. It is shown that, apart from stimulating the spatial ordering of nanoislands, the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics