萝莉社

Professor Hamdeh's research in experimental condensed matter physics focuses on magnetic materials in different forms and states. These systems include bulk, nano-size particles, and thin films of soft and hard magnets, ferrites, and magnetic oxides. Other interests include nano-particle catalyst. The primary techniques for studying these materials are magnetic susceptibility and M枚ssbauer spectroscopy in high magnetic fields and at temperatures ranging from 4.2 to 1000 K. The goal of his work is to correlate the physical magnetic properties to the state of materials and the size growth of nano-scale particles. Dr. Hamdeh has published over 100 articles and presented an equal number of papers at national or international conferences.

• Wenping Ma, et. al., 鈥淓ffect of H2S in syngas on the Fischer-Tropsch Synthesis performance of a precipitated iron catalyst鈥�, DOI:10.1016/j.apcata.2015.035, available on line, December 30, 2015, Applied Catalysis A: General, 513, 127-137 (2016)
• Muthu Kumaran Gnanmani, et. al., "Hydrogenation of carbon oxide over Fe-Co bimetallic catalysts", DOI: 10.1021/acscatal.5b01346, publication date (Web), December 24, 2015, ACS catalysis, 2016, 6, 913-927
• Muthu Kumaran Gnanamani, Hussein H. Hamdeh, Dennis E Sparks, Burtron H Davis, 鈥淔ischer-Tropsch Synthesis: Activity and selectivity of 蠂-Fe5C2 and ?-Fe3C carbides鈥�, to be published March, 2016 in Fischer-Tropsch Synthesis, Catalysts, and Catalysis: Advances and Applications, CRC Press, ISBN: 9781466555297- CAT# K15363
• A.M. Elshahawy, M.H. Mahmoud, Salah A. Makhlouf and H.H. Hamdeh, 鈥淩ole of Cu2+ substitution on the structural and magnetic properties of Ni-ferrite nanoparticles synthesized by the microwave-combustion method鈥�, Ceramic International, volume 41, issue 9, 11264-11271, doi:10.1016/j.ceramint.2015.05.079 (2015)
• Wenping Ma, et. al., 鈥淔ischer-Tropsch Synthesis: Effect of hydrohalic acids and hydrogen cynide in syngas on a precipitated iron catalyst鈥� ,ACS Catalysis, 2015, 5, 3124-3136, Publication Date (Web): April 8, 2015 (Article) DOI: 10.1021/acscatal.5b00023
• Wenping Ma, et. al., 鈥淔ischer-Tropsch Synthesis: Effect of ammonia in syngas on the javascript:void(%200%20)Fischer-Tropsch synthesis performance of a precipitated iron catalyst鈥�, J. of Catalysis, 326 (2015) 149-160, DOI:10:1016/j.cat.2015.04.004
• Zein K. Heiba, Mohamed Maker Mohamed, H.H. Hamdeh and M.A. Ahmed, 鈥淪tructural Analysis and Cations Distribution of nanocrystalline Ni1-xZnxFe1.7Ga0.3O4鈥�, Journal of Metals and Compounds, 618 (2015) 755-760, DOI 10.1016/j.jallcom.2014.08.241
• Muthu Kumaran Gnanamani, Hussein H. Hamdeh, Dennis E Sparks, Burtron H Davis, 鈥淔ischer-Tropsch Synthesis: Activity and selectivity of 蠂-Fe5C2 and ?-Fe3C carbides鈥�, Proceedings, Volume 59 # 2, 248th ACS national meeting &exhibition, San Francisco, CA, 10-14 August 2014
• Venkat Ramana Rao Pendyala, et. al., 鈥淔ischer-Tropsch synthesis: effect of potassium promoter loading over precipitated iron catalyst鈥�, Catalysis Letters (2014) 144, 1704-1716, DOI: 10.1007/s10562-014-1336-z
• Venkat Ramana Rao Pendyala, et. al., 鈥淔ischer-Tropsch synthesis: effect of activation gas after varying Cu promoter loading over K-promoted Fe-based catalyst鈥�, Catalysis Letters, (2014) 144, 1624-1635, DOI: 10.1007/s10562-014-1302-9
• Venkat Ramana Rao Pendyala, et. al., 鈥淔ischer-Tropsch synthesis: morphology, phase transformation and carbon layer growth of iron-based catalysts鈥�, ChemCatChem (2014) 6, 1952-1960, DOI: 10.1002/cctc.201402073
• M.H. Mahmoud, A.M. Elshahawy, Salah A. Makhlouf and H.H. Hamdeh, 鈥淪ynthesis of highly ordered 30 nm NiFe2O4 particles by microwave-combustion method鈥�, JMMM, 369 (2014) 55-61, DOI:10.1016/j.jmmm.2014.06.011
• G.S.N. Rao, et. al., 鈥淚nfluence of copper substitution on magnetostrictive properties of cobalt ferrite鈥�, digest, Intermag 2014
• G.S.N. Rao, B. Parvatheeswara Rao, H.H. Hamdeh, 鈥淢枚ssbauer spectroscopic study of high magnetostrictive cobalt chromium ferrites for automobile torque sensors鈥�, Procedia Materials Science 6, 1511 1515 (2014)
• Zein K. Heiba, et. al., 鈥淐ations Distribution and dielectric properties of nanocrystalline Gallium substituted Nickel ferrite鈥�, Journal of Metals and Compounds, 586 (2014) 773-781, DOI 10.1016/j.jallcom.2013.10.137
• M.H. Mahmoud, A.M. Elshahawy, and H.H. Hamdeh, 鈥淢枚ssbauer spectroscopy study of annealed Ni-ferrite synthesized by microwave-combustion method鈥�, International Conference on the Application of the M枚ssbauer Effect, ICAME 2013, Opatija Croatia, 1-6 September (2013).
• Muthu Kumaran Gnanamani, et. al., 鈥淓ffect of potassium on Activity and Selectivity for oxide and carbide Fe catalysis鈥�, Catalysis Letters, Volume 143, Issue 11, Page 1123-1131 (DOI 10-1007/s10562-013-1110-7) (2013)
• M.H. Mahmoud, A.M. Elshahawy, Salah Makhlouf, and H.H. Hamdeh, 鈥淢枚ssbauer and Magnetization Studies of Nickel Ferrite Nanoparticles Synthesized by the Microwave-Combustion Method鈥�, JMMM, 243, 21-26 (2013)
• Muthu Kumaran Gnanamani, et. al., 鈥淔ischer-Tropsch Synthesis: M枚ssbauer investigation of Iron containing catalysts for Hydrogenation of Carbon Dioxide鈥� Catalysis Today, 207, 50-56 (2013)
• Gnanamani, M.K., et.al, 鈥淔ischer-Tropsch Synthesis: Effect of Pretreatment Conditions on Activity and Selectivity of Fe Catalysts鈥�, Synfuel 2012, June 29-30, Munich, Synfuel 2012 Symposium Proceedings, pp 82-83, 2012.
• Musa S. Shongwe, et. al., 鈥淎ccessibility and Selective Stabilization of the Principal Spin States of Iron by Pyridyl versus Phenolic Ketimines: Modulation of the 6A1 鈫� 2T2 Ground State Transformation of the [FeN4O2]+ Chromopohore鈥�, ACS/Inorganic Chemistry dx.doi.org/10.1021/ic300732r/Inorg.chem.2012,51,8241-8253
• M.A. Ahmed, et. al., 鈥淪tructural Analysis of Zinc Ferrite nano Particles by means of X-ray Powder Diffraction and M枚ssbauer Spectroscopy鈥�, Int. J. Nanoparticles, Vol. 5, No. 1, 56-63 (2012)
• A. Surdu, et. al., 鈥淓nhancement of the critical current density for FeO coated MgB2 thin films at high fields鈥�, Beilstein Journal of Nanotechnology, 2011, 2, 809-813, doi:10.3762/bjnano.2.89
• N.I. Aljaried, et. al., 鈥淪tructural Properties of Pseudobrookite Fe2Ti1O5 Powder Prepared by a New Method鈥� , Int. J. Nanoparticles, Vol. 4, No.1 (2011)
• G.S.N. Rao, O.F. Caltun, K.H. Rao, B. Parvatheeswara Rao, H.H. Hamdeh, 鈥淐ompositional Dependence of Magnetostrictive Properties of Cobalt Ferrite鈥�, AIP Conf. Proc. 1347, 293-296 (2011)
• H.H. Hamdeh, et. al., 鈥淢枚ssbauer Spectroscopy of Spin Dynamics in MnxFe1-xSe0.85 Superconductors: Evidence for an Incommensurate Spin-Density-Wave State鈥�, EPL, 89 , 67009 (2010)
• H.H. Hamdeh, et. al., 鈥淢agnetism in nanoparticles of semiconducting FeSi2鈥�, J. of Magnetism and Magnetic Materials, 322, 2227-2230 (2010)
• Venkat Ramana Rao Pendyala, et. al., 鈥淔ischer-Tropsch Synthesis: Effect of Water Over Iron-Based Catalysts鈥�, Catal Letters, 140, 98-105 (2010)