مناهج المؤرخين المعاصرين في كتابة السيرة النبوية: شلبي وشاكر أنموذجا

This paper encompassed the methods of contemporary historians in presenting the Prophet's biography: Shalabī and Shākir as a model. The purpose of this research was a comparative study of the methods of two different contemporary writers in the field of biography. The method used for the research was comparative. This fact was established that there are very few contemporary historians who contributed in writing of the Prophet's biography, but although these two important historians were diligent researchers with good works and successful writings, but much that they have benefited from history needs and objected even settled facts like some of the correct aḥādīth and some important events that took place in the in reference no is there as (صلى الله عليه وسلم) Muhammad Prophet Great the of biography the books to the sources relied on in the historical narratives, nor in the narration of the biography. There are many shortcomings in the two books which are in the most important Islamic arts, especially in the Encyclopedia of Dr. Shākir, and special research and books should be devoted to the answers to the silence of such shortcomings, and there is a strong need to compose valuable books in response to the shortcomings of such sporadic encyclopedias. Special books in such art must be devoted to the important Islamic arts, and do not include a variety of subjects on general history. (صلى الله عليه وسلم) biography Muhammad s'Prophet the of art the inc

Synthesis, Characterization and Fabrication of Metal Organic Framework Composites for Adsorption and Electrochemical Applications

Four metal organic frameworks [Zn(3-bpmh)(1,4-bdc)]n, [Cd(3-bpmh)(1,4-bdc)]n [C8H10CdO7]n.4H2O and C15H17N2NiO8 (Ni-BTC) were synthesized and characterized. N-doped nanostructured porous carbon materials coded as PCN920 and PCN900 were obtained through the thermal treatment of two frameworks [Zn(3-bpmh)(1,4-bdc)]n and [Cd(3-bpmh)(1,4-bdc)]n, respectively under argon gas environment, while the third compound [C8H10CdO7]n.4H2O had produced porous carbon material (PC900) through the same heating process as described earlier. The thermal evaporation of Zn metal yielded impressively high surface area carbon (PCN920), which is found to be 1171 m2g-1, while Cd metal elimination from [Cd(3-bpmh)(1,4-bdc)]n and [C8H10CdO7]n.4H2O had generated relatively low surface area carbon i.e. 407 m2g -1 for PCN900 and 877 m2g -1 for PC900. The derived carbon materials PCN920, PCN900 and PC900 had been utilized for the synthesis of bimetallic composites with 10% Pt and 5% second metal (Ni, Cu, Er) through polyol reduction procedure. The bimetallic composites synthesized from PCN920 are coded as Pt-Ni@PCN920, Pt-Cu@PCN920 and Pt-Er@PCN920, while that were prepared from PCN900 are coded as Pt-Er@PCN900 and Pt-Ni@PCN900 and Pt-Cu@PCN900. The PC900 used as support to prepare composites are Pt-Er@PC900 and Pt-Ni@PC900 and Pt-Cu@PC900. The layered cadmium framework [C8H10CdO7]n.4H2O was synthesized in crystal form and characterized through single crystal X-ray analysis. The infrared spectroscopy (IR), UV-Vis spectroscopy and terahertz time-domain spectroscopy (THz TDS) were performed for cadmium metal organic framework. The computational investigations of the framework were performed at B3LYP/LANL2DZ level in gas phase to support our experimental results. The terahertz time domain spectroscopy of [C8H10CdO7]n.4H2O was performed and its refractive index along with absorption coefficient in 0.2-1.3 THz range x were calculated. The Nonlinear optical properties analysis reveals that the first static hyperpolarizability of [C8H10CdO7]n.4H2O is 38 times greater than that of urea. All the composites have been characterized through PXRD, FTIR, RAMAN, BET, XPS, ICP, CHNS/O, EDX, SEM and TEM. The composites Pt-Ni@PCN920, Pt-Cu@PCN920, Pt-Er@PCN920, Pt-Er@PCN900, Pt-Ni@PCN900 and Pt-Cu@PCN900 were analyzed for three important electrocatalytic reactions oxygen evolution (OER), hydrogen evolution (HER) and oxygen reduction reactions (ORR), while Pt-Er@PC900, Pt-Ni@PC900 and Pt-Ni@PC900 were used as electrocatalysts to perform HER and ORR. The performance of Pt-Ni@PCN920 is found to be better than Pt-Er@PCN920 and Pt-Cu@PCN920 having the same substrate PCN920. Secondly, Pt-Er@PCN900 showed excellent performance for HER, OER and ORR than Pt-Ni@PCN900 and Pt-Cu@PCN900. The durability and stability of Pt-Er@PCN900 was marvelous. Thirdly, the performance of Pt-Er@PC900 was superb than Pt-Ni@PC900 and Pt-Cu@PC900. The Nickel metal organic framework, graphene oxide (GO) and their composites Ni-BTC@GO(1%), Ni-BTC@GO(2%), Ni-BTC@GO(3%), Ni-BTC@GO(4%) and Ni-BTC@GO(8%) were synthesized, characterized and used as adsorbents for denitrogenation of synthesized model fuel. The porosity of the composite was enhanced by adding GO as compared to pristine Ni-MOF. The composite material with enhanced porosity and high surface area was used as adsorbent to remove indole, pyridine and quinoline from synthesized model fuel. The adsorption results showed profound increase in the adsorption capacity of the Ni-MOF@GO composite as compared to the pristine MOF. The composites also showed good regenerative ability and reusability.