排序方式: 共有15条查询结果,搜索用时 15 毫秒
1.
Laabaissi T. Benhiba F. Rouifi Z. Rbaa M. Oudda H. Zarrok H. Lakhrissi B. Guenbour A. Warad I. Zarrouk A. 《Protection of Metals and Physical Chemistry of Surfaces》2019,55(5):986-1000
Protection of Metals and Physical Chemistry of Surfaces - New benzodiazepine derivatives, namely 8-Chloro-1,2,3,4,10,11-hyxahydrospiro[cyclohexane-1,11-dibenzo[1,4]diazipine] and... 相似文献
2.
3.
Siddiqui MR Alshehri S Warad IKh Abd El-Salam NM Mahfouz RM 《International journal of molecular sciences》2010,11(9):3600-3609
Kinetic studies for the non-isothermal decomposition of unirradiated and γ-irradiated silver acetate with 10(3) kGy total γ-ray doses were carried out in air. The results showed that the decomposition proceeds in one major step in the temperature range of (180-270 °C) with the formation of Ag(2)O as solid residue. The non-isothermal data for un-irradiated and γ-irradiated silver acetate were analyzed using Flynn-Wall-Ozawa (FWO) and nonlinear Vyazovkin (VYZ) iso-conversional methods. These free models on the investigated data showed a systematic dependence of Ea on α indicating a simple decomposition process. No significant changes in the thermal decomposition behavior of silver acetate were recorded as a result of γ-irradiation. Calcinations of γ-irradiated silver acetate (CH(3)COOAg) at 200 °C for 2 hours only led to the formation of pure Ag(2)O mono-dispersed nanoparticles. X-ray diffraction, FTIR and SEM techniques were employed for characterization of the synthesized nanoparticles. 相似文献
4.
5.
Abderrahim Titi Mouslim Messali Rachid Touzani Mohammed Fettouhi Abdelkader Zarrouk Nabil Al-Zaqri Ali Alsalme Fahad A. Alharthi Amjad Alsyahi Ismail Warad 《International journal of molecular sciences》2020,21(22)
A new double-open-cubane core Cd(II)-O-Cu(II) bimetallic ligand mixed cluster of type [Cl2Cu4Cd2(NNO)6(NN)2(NO3)2].CH3CN was made available in EtOH/CH3CN solution. The 1-hydroxymethyl-3,5-dimethylpyrazole (NNOH) and 3,5-dimethylpyrazole (NNH) act as N,O-polydentate anion ligands in coordinating the Cu(II) and Cd(II) centers. The structure of the cluster in the solid state was proved by XRD study and confirmed in the liquid state by UV-vis analysis. The XRD result supported the construction of two octahedral and one square pyramid geometries types around the four Cu(II) centers and only octahedral geometry around Cd(II) two centers. Interestingly, NNOH ligand acts as a tetra-µ3-oxo and tri-µ2-oxo ligand; meanwhile, the N-N in NNH acts as classical bidentate anion/neutral ligands. The interactions in the lattice were detected experimentally by the XRD-packing result and computed via Hirschfeld surface analysis (HSA). The UV-vis., FT-IR and Energy Dispersive X-ray (EDX), supported the desired double-open cubane cluster composition. The oxidation potential of the desired cluster was evaluated using a 3,5-DTB-catechol 3,5-DTB-quinone as a catecholase model reaction. 相似文献
6.
Assem Barakat Mousa Al-Noaimi Mohammed Suleiman Abdullah S. Aldwayyan Belkheir Hammouti Taibi Ben Hadda Salim F. Haddad Ahmed Boshaala Ismail Warad 《International journal of molecular sciences》2013,14(12):23941-23954
[NiCl2(C14H12N2)(H2O)] complex has been synthesized from nickel chloride hexahydrate (NiCl2·6H2O) and 2,9-dimethyl-1,10-phenanthroline (dmphen) as N,N-bidentate ligand. The synthesized complex was characterized by elemental analysis, infrared (IR) spectroscopy, ultraviolet-visible (UV-vis) spectroscopy and differential thermal/thermogravimetric analysis (TG/DTA). The complex was further confirmed by single crystal X-ray diffraction (XRD) as triclinic with space group P-1. The desired complex, subjected to thermal decomposition at low temperature of 400 ºC in an open atmosphere, revealed a novel and facile synthesis of pure NiO nanoparticles with uniform spherical particle; the structure of the NiO nanoparticles product was elucidated on the basis of Fourier transform infrared (FT-IR), UV-vis spectroscopy, TG/DTA, XRD, scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDXS) and transmission electron microscopy (TEM). 相似文献
7.
Venkatesan A. Muthuvel A. Mohana V. Mahendran N. Al-Zaqri Nabil Boshaala Ahmed Warad Ismail 《Journal of Materials Science: Materials in Electronics》2022,33(27):21246-21257
Journal of Materials Science: Materials in Electronics - The green pigment cobalt aluminate nanoparticles have been prepared by the simple and cost-effective co-precipitation method. And also, the... 相似文献
8.
Warad I Omar Abd-Elkader H Al-Resayes S Husein A Al-Nuri M Boshaala A Al-Zaqri N Ben Hadda T 《International journal of molecular sciences》2012,13(5):6279-6291
Novel hybrid xerogel materials were synthesized by a sol-gel procedure. n-octadecyltriethoxysilane was co-condensed with and without different cross-linkers using Q(0) and T(0) mono-functionalized organosilanes in the presence of n-hexadecylamine with different hydroxyl silica functional groups at the surface. These polymer networks have shown new properties, for example, a high degree of cross-linking and hydrolysis. Two different synthesis steps were carried out: simple self-assembly followed by sol-gel transition and precipitation of homogenous sols. Due to the lack of solubility of these materials, the compositions of the new materials were determined by infrared spectroscopy, (13)C and (29)Si CP/MAS NMR spectroscopy and scanning electron microscopy. 相似文献
9.
10.
F. Benhiba Z. Benzekri A. Guenbour M. Tabyaoui A. Bellaouchou S. Boukhris H. Oudda I. Warad A. Zarrouk 《中国化学工程学报》2020,28(5):1436-1458