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| 1 | Combustion synthesis and luminescence properties of LaPO4: Eu (5%)显示文摘稀土元素做的材料由于他们象在盖住全部可见的域的高温度和轻排放的稳定性那样的优秀性能是黄磷的一种重要类型。在单斜晶的 LaPO4 的酸 pH 的燃烧合成:Eu (5%) 粉末被描述。La (NO3 ) 的混合物 3 ?? | Mounir Ferhi Karima Horchani-Naifer Mokhtar Férid | 2009 | Journal of Rare Earths2009,27,2: | 8 |
| 2 | Conduction properties of condensed lanthanum phosphates:La(PO_3)_3 and LaP_5O_(14)显示文摘Single crystals of LaP3O9·3H2O were prepared using a classical method of aqueous chemistry whereas those of the ultraphosphate LaP5O14 were obtained by flux method.Thermal treatment of LaP3O9·3H2O up to 700 °C allowed us to obtain the lanthanum polyphosphate La(PO3)3.The conductivity as well as the vibrational study of the lanthanum ultraphosphate and polyphosphate were analysed in order to explain the mechanism of conduction.Activation energies of 0.45 and 0.84 eV,deduced from the Arrhenius relation,were respectively found for the polyphosphate and the ultraphosphate.Taking into account the structural features of these materials we linked the origin of their electrical properties to the incorporation of atmospheric humidity.Thus,it was a proton conduction phenomenon which took place as a result of the establishment of hydrogen bonds as well as the reorganisation of water molecules already incorporated into these structures.Referring to the Grotthuss mechanism,a proton transfer model inside the polyphosphate's structure was suggested. | Ines Hammas Karima Horchani-Naifer Mokhtar Férid | 2010 | Journal of Rare Earths2010,28,3: | 3 |
| 3 | Crystal structure and infrared spectrum of thallium holmium polyphosphate, TlHo(PO_3)_4显示文摘Crystals of thallium-holmium polyphosphate TlHo(PO3)4 were grown by flux method technique and characterized by single crys- tal X-ray diffraction. Structure of TlHo(PO3)4 was solved for the first time, and it crystallized in the monoclinic P21/n space group with the following unit-cell dimensions: a=1.02225(3) nm, b=0.88536(2) nm, c=1.09541(4) nm, β=105.888(1)°, V=0.95354(5) nm3 and Z=4. The crystal structure was solved from 2174 independent reflections with final R1(F2)=0.0442 and Rw(F2)=0.0861 refined with 164 parameters. The atomic arrangement could be described as a long chain polyphosphate organization. Holmium atoms had eightfold coordination. The structure of TlHo(PO3)4 consisted of HoO8 polyhedra sharing oxygen atoms with phosphoric group PO4. Infrared spectrum was investigated at room temperature in the frequencies range, 350–4000 cm–1, showing some characteristic vibration bands of infinite chain structure of PO4 tetrahedra linked by bridging oxygen. | Karima Horchani-Naifer Jaouher Amami Mokhtar Férid | 2008 | Journal of Rare Earths2008,26,6: | 2 |
| 4 | Energy transfers between Sm 3+ and Eu 3+ in YPO 4 , LaP 5 O 14 and LaP 3 O 9 phosphates. Potential quantum cutters for red emitting phosphors显示文摘 | S. Hachani B. Moine A. El-akrmi M. Férid | 2010 | Journal of Luminescence2010,,10: | 1 |
| 5 | Thermal dehydration of CeP 3 O 9 ·3H 2 O by controlled rate thermal analysis显示文摘 | K. Nahdi M. Férid Malika Trabelsi Ayadi | 2009 | Journal of Thermal Analysis and Calorimetry2009,,2: | 1 |
| 6 | 显示文摘 | Ines Hammas Karima Horchani-Naifer Mokhtar Férid | 2010 | Journal of Rare Earths2010,,03: | 1 |
| 7 | Depositional and Diagenetic Controls on the Reservoir Quality of Lower Cretaceous Pendencia Sandstones, Potiguar Rift Basin,Brazil显示文摘 | DOS ANJOS S M C DE RIDS L F DE SOUZA R S | 2000 | AAPG Bulletin2000,84,11: | 1 |
| 8 | Surface modification of zinc-containing hydroxyapatite by tartaric acid显示文摘 | Thouraya Turki Masseoud Othmani Christophe Goze Bac Férid Rachdi Khaled Bouzouita | 2013 | Applied Surface Science2013,,: | 1 |
| 9 | Equilibrium diagram of KPO 3 –Y(PO 3 ) 3 system, chemical preparation and characterization of KY(PO 3 ) 4显示文摘 | Anis Jouini Mokhtar Férid Malika Trabelsi-Ayadi | 2002 | Thermochimica Acta2002,,: | 1 |
| 10 | Etude du diagramme d’equilibre du systeme NaPO3?Pr(PO3)3显示文摘 | M. Férid D. Ben Hassen-Chehimi N. Kbir-Ariguib M. Trabelsi-Ayedi | 1994 | Journal of Thermal Analysis1994,,5: | 1 |
| 11 | Synthesis and Crystal Structure of a New Potassium Yttrium Diphosphate Dihydrate KYP_2O_7·2H_2O显示文摘The dihydrated potassium yttrium diphosphate=KYP2O7·2H2O=has been synthe- sized for the first time. Single-crystal XRD study has allowed the determination of its structure and correct formula. It crystallizes in the monoclinic system=space group P21/c=with the cell parameters a=7.7069(3)=b=10.5801(4)=c=10.0204(5)=β=93.24(3)°=V=815.76(6)3=Z=4=Mr=337.98=F(000)=656=Dc=2.752 g/cm3 and μ=8.073 mm-1. The single-crystal structure was solved from 1856 unique reflections with the final R=0.0365 and wR=0.0772=refined with 119 parameters. The atomic arrangement of KYP2O7·2H2O is built by the P2O7 groups=the YO7 and the KO10 polyhedrons which are connected by corner and edge-sharing to form a three- dimensional framework. Water molecules are directly bonded to the Y and K atoms=and they are located in channels running along the a direction. | Férid M Horchani-Naifer K | 2008 | Chinese Journal of Structural Chemistry2008,27,10: | 0 |