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Over onsWaar vindt u onsdr. A.H. (Ahmed) Ayyad

dr. A.H. Ayyad

Lab. Management and Research

Dr. A. H. Ayyad

Ph.D. Physical chemistry / Karlsruhe University / 2002

0031-6 43743417 (mobile).

Email: a.h.ayyad@rug.nl

Personal information

Last name:                 Ayyad

First name:                 Ahmed

Title:                            Dr. rer.nat. /Ph.D.

Place of birth:            Jerusalem

Marital state:             Married to Anne-Claire Heijns since 1997

Children:                     Three children

Nationality:                 Dutch

Eligibility for work:     EU national (Netherlands)

Academic Education

1999-2002     Ph.D. in physical chemistry, magna cum laude.

Karlsruhe University (TH), Institute for Physical and Electrochemistry (group: physical chemistry of condensed matter), Karlsruhe, Germany.

Thesis: Wetting, pre-wetting and surface freezing transitions in liquid Ga-Bi and Ga-Pb alloys: a surface light scattering study under UHV conditions.

Promotor: Prof. Dr. Werner Freyland.

1996-1998       M.Sc./drs. in physical chemistry.

Leiden University, Institute for Physical and Macromolecular Chemistry, Gorlaeus Laboratories, Leiden, The Netherlands.

Thesis: Physical properties of linear polysaccharides pullulan and pullox: a static and dynamic light scattering study.

Supervisor: Dr. Jan Smit.

1991-1995:       B.Sc. in chemistry, minor: chemical technology.

Jerusalem University, East Jerusalem.

Post-graduate training/courses

 2004:                Radiation protection course certificate. HASYlab, German 

                          Synchrotron, Hamburg.

2012:                Academic teacher training certificate. Hebron University, Center for

                         Excellence in Teaching.

Employment

Oct. 2018 - now:   Lab. Manager, Groningen university, Zernike institute of advanced

                               materials, Surfaces and thin films, Group of Prof. Petra Rudolf

 2015-2017:          Associate Professor of Physical Chemistry, Hebron University

2007-2015:           Assistant Professor of Physical Chemistry, Hebron University.

 Post-docs: 

2003-2005:       Post-doc, Christian-Albrechts University Kiel, Institute for Applied and Experimental Physics, Kiel, Germany, research group ’surfaces and interfaces’, Prof. Dr. Olaf Magnussen.

Project: In-situ surface X-ray scattering studies of the electrodeposition of metal ions on metal single crystal substrates (e.g. Au on Au(111), Au(100), Pt(111)). Synchrotron experiments at ESRF, Grenoble, France, and at HASYlab, Hamburg, Germany.

Sept. 2003-2005: as an Alexander-von-Humboldt fellow (Alexander-von-Humboldt Foundation, Germany).

Research visit

 June-Aug. 2009. Short research stay (3 months).

Forschungszentrum Juelich (FZJ), Germany, Institute for Bio- and Nanosystems.

Responsibility: offering support in UHV instruments design/building.

Technical skills

Instrument design:

Ultra High Vacuum chamber design, maintain and measurements

Electrochemical cell design

Language skills

English:           good professional level

Dutch:             proficient

German:         Satisfactory

Arabic:             native

Publications (chronologically)

  1. A. H. Ayyad, Test of the des Cloiseaux Law by Membrane Osmometry on Pullulan, Macromolecular Rapid Communications 22(8) (2001) 652.
  2. N. F. El-Ansary, G. A. Hoshoudy, A. S. Abd-Elrady, A. H. A. Ayyad, Effects of surface tension and rotation on the Rayleigh–Taylor instability, Physical Chemistry Chemical Physics 4 (2002) 1464.
  3. A. H. Ayyad, I. Mechdiev, W. Freyland, Light scattering study of surface freezing and surface viscoelasticity in a eutectic liquid Ga–Bi alloy, Chemical Physics Letters 6 (2002).
  4. A. H. Ayyad and W. Freyland, Surface free energy and wetting in Ga-Bi alloys: a capillary wave spectroscopy study, Surface Science 506 (2002) 1-11.
  5. W. Freyland and A. Ayyad, Wetting, prewetting and surface freezing transitions in fluid Ga-based alloys: Surface light scattering study, Journal of Physics Condensed Matter 15 (2003) 151.
  6. A. H. Ayyad, J. Stettner, O. M. Magnussen, Electrocompression of the Au(111) surface layer during Au electrodeposition, Physical Review Letters 94(6) (2005) 066106.
  7. K. Krug, A. Ayyad, K. Koelln, J. Stettner and O.M. Magnussen, In-situ X-ray investigation of the electrodeposition of Au on Au single crystal surfaces, Fruehjahrstagung der Deutschen Physikalischen Gesellschaft Berlin DPG2005 (2005).
  8. D. Kaminski, K. Krug, A.H. Ayyad and J. Stettner, In situ diffraction studies of Au(001) electrode surface structure during Au electrodeposition, poster (2006).
  9. O. M. Magnussen, K. Krug, A.H. Ayyad, J. Stettner, In situ diffraction studies of electrode surface structure during gold electrodeposition, Electrochimica Acta (2008).
  10. A. H. Ayyad, Theoretical calculation of the temperature coefficient of surface excess entropy of pure liquid metals, Applied Surface Science; 256 (2010) 4081.
  11. A. Ayyad, F. Aqra, Theoretical consideration of the anomalous temperature dependence of the surface tension of pure liquid Gallium, Theoretical Chemistry Accounts 127(5-6) (2010) 443.
  12. A. H. Ayyad, 2D-isothermal compressibility of deposited gold layer on Au(111) surface, Applied Surface Science; 256 (2010) 3303.
  13. A. Ayyad, F. Aqra, Physicochemical properties of two-layer liquid drop, Journal of Emerging Trends in Engineering and Applied Sciences1(1) (2010) 109.
  14. A. Ayyad, F. Aqra, Application of Young’s Equation to Two Immiscible Liquids Resting on a Solid Substrate, Russian Journal of Physical Chemistry 84(13) (2010) 2290.
  15. A. H. Ayyad, Thermodynamic derivation of the Young-Dupré form equations for the case of two immiscible liquid drops resting on a solid substrate, Journal of Colloid and Interface Science 346(2) (2010) 483.
  16. F. Aqra, A. Ayyad, F. Takrori, Model calculation of the surface tension of liquid Ga–Bi alloy, Applied Surface Science 257(8) (2011) 3577.
  17. F. Aqra, A. Ayyad, Theoretical study of a thermophysical property of molten semiconductors, Journal of Metallurgy (Article ID 436704) (2011) 5 pages.
  18. F. Aqra, A. Ayyad, Theoretical temperature-dependence surface tension of pure liquid gold, Materials Letters 65(14) (2011) 2124.
  19. A. Ayyad, F. Aqra, Mechanical stability of two immiscible liquid drops resting on a solid substrate, Physics and Chemistry of Liquids  49(4) (2011) 430. 
  20. F. Aqra, A. Ayyad, Surface tension of pure liquid bismuth and its temperature dependence: Theoretical calculations, Materials Letters 65(4) (2011) 760.
  21. F. Aqra, A. Ayyad, Erratum: Theoretical calculations of the surface tension of liquid transition metals, Metallurgical and Materials Transactions B42B(2) (2011) 435.
  22. A. H. Ayyad, Takrori, Can a Heavier Liquid Float on Top of a Lighter One? Chinese Physics Letters 28 (2011) 1.
  23. F. Aqra, A. Ayyad, Surface Tension of Liquid Alkali, Alkaline, and Main Group Metals: Theoretical Treatment and Relationship Investigations, Metallurgical and Materials Transactions A42(9) (2011) 2680.
  24. F. Aqra, A. Ayyad, Theoretical Estimation of Temperature-Dependent Surface Tension of Liquid Antimony, Boron, and Sulfur, Metallurgical and Materials Transactions B 42(3) (2011) 437.
  25. F. Aqra, A. Ayyad, Theoretical calculations of the surface tension of Ag(1−x)–Cu(x) liquid alloys, Journal of Alloys and Compounds 509(19) (2011) 5736.
  26. F. Aqra, A. Ayyad, Surface energies of metals in both liquid and solid states, Applied Surface Science 257(15) (2011) 6372.
  27. F. Aqra, A. Ayyad, Surface tension (γLV), surface energy (γSV) and crystal-melt interfacial energy (γSL) of metals, Current Applied Physics 12(1) (2012) 31.
  28. F. Aqra, A. Ayyad, Surface tension of pure liquid lanthanide and early actinide metals, Physics and Chemistry of Liquids 50(3) (2012) 336.
  29. F. Aqra, A. Ayyad and F. Takrori, Empirical relations for calculating selected physical properties of pure liquid metals and binary liquid alloys, Hebron University Research Journal (A). Vol.(6), pp.(01 – 17), 2012.
  30. F. Aqra and A. Ayyad, Surface free energy of alkali and transition metal nanoparticles, Applied Surface Science 314 (2014) 308–313.
  31. F. Aqra and A. Ayyad, Correlations of the surface tension and some thermodynamic and transport properties of the alkali metal halides at their melting temperatures based on their corresponding molar volumes, Fluid Phase Equilibria 385 (2015) 134–138.
  32. M. Natsheh, A. Ayyad, Temperature-induced adsorption of sodium poly(styrenesulfonate) to the Water-Air Interface, Materials Letters 160 (2015) 378-380.
  33. A. Ayyad, On the Surface Tension of Molten Salts and its Temperature Dependence, Physics and Chemistry of Liquids, 55 (2017), 120-130.

34. F.M. Takrori and A. Ayyad. Surface Energy of Alloy Nanoparticles, Applied    Surface Science 401, 65-68 (2017).

Laatst gewijzigd:17 oktober 2018 10:25