المنھج اللغوي في التفسير و تاريخه

The Holy Quran was revealed in Arabic Language, it is, therefore necessary to seek Arabic Diction to gain the direct guidance from it. The companions of Holy Prophetr, Tabeen, and the reverent Imams strictly rebuked those interpreters who interpret the Holy Quran without having command over Arabic Language. The verses of Quran that are clear in comprehension, explicit and easy, do require the source of interpretation as “Arabic Diction”. This method highlights the positive trends to Arabic Diction. But in the matter of ambiguity and resemblance in verses and deduction of Masael, this Diction will be given second priority. Mere Diction and Arabic Socio-Diction may not be titled as most authentic. Diction is not the ‘last word. ’ The very first priority will be given to the verses of Quran, Hadith e Nabvi and Quotations of Companions of Holy Prophetr. The companions themselves were the native Arabs but they used to do consult some Quranic terms with the Holy Prophetr. As time passed, some strayed sects and atheists ignored this positive trend (Tafseer-bil-Mathur), and accustomed a new trend of interpretation of Holy Quran i. E. Depending upon Arabic Diction only so that they may endorse their own thoughts. It was a negative source of interpreting the Holy Quran i. E. Only by Arabic Diction. The present article explores its historical perspectives after evaluating its negative trends. The Motazila sect got this trend nourished. The representing interpretations of Holy Quran of this trend have been analyzed in this article. At the end, Molana Ameen Ahsan Islahi’s approach to Diction and his Tafseer ‘Tadabbur e Quran’ has been evaluated.

Efficient Electrochemical Energy Conversion of Carbon from Coal and Waste

Direct carbon fuel cell directly converts the chemical energy stored in the fuel (carbon) to electricity. It is a high-temperature fuel cell having practical efficiency of 80%, normally operates at or above 700 oC with significantly low CO2 emission compared to coal burning power plants which release large amount of notorious gases NO2, SO2 and CO2. In this PhD research work main objectives are to synthesize combination of efficient electrolytes and electrodes materials not only operational compatible with carbon fuel, but also are electrochemical stable, having high conductivity and should provide excellent performance. Further, this thesis is divided into three parts; Electrolytes, Electrodes and theoretical calculation. Therefore, commonly used coprecipitation technique has been employed to synthesize various electrolytes, calcium doped ceria, single carbonate- doped ceria, binary carbonate-doped ceria, and ternary carbonate-doped ceria, barium co-doped ceria, calcium co-doped ceria, magnesium co-doped ceria and strontium co-doped ceria. However, in addition to electrolytes mainly two types of electrodes known as oxides LiNiCuZnO (LNCZO), LiNiCuZnFeO (LNCZFO) and perovskite LaSrNiTiO3-d (LSNT), LaSrFeTiO3-d (LSFT), LaSrCoTiO3-d (LSCT) and LaSrZnTiO3-d (LSZT) have been prepared using sol-gel technique. The prepared materials are characterized using various structural techniques; X-ray diffraction (XRD), Scanning electron microscopy, Thermal analysis, UV-Visible spectroscopy, Raman spectroscopy, Fourier transforms infrared spectroscopy, DC/AC conductivity and electrochemical performance. On the top of all characterization the XRD results reveal the prominent cubic structure of all the electrolytes and perovskite electrodes, whereas composite structure of LNCZO and LNCZFO is confirmed. Moreover, two types of carbon fuel categorized as coal based (lignite, bituminous, sub-bituminous) and waste biochar (walnut shells, almond shells) have been used to evaluate the overall electrochemical performance of direct carbon fuel cell (DCFC). xi Amongst all the discussed electrolytes (Li,Na)2CO3–doped ceria(LN-SDC) has shown the highest ionic conductivity of 0.31 Scm-1 with maximum performance of 617 mWcm-2 in combination of LNCZO electrode at 600 oC forhydrogen as fuel and air as oxidant. Secondly the combination of co-doped ceria electrolyte calcium co-doped ceria (CSDC) and LNCZFO electrode had depicted the performance of 630mWcm-2 at 650 oC with hydrogen fuel, where as co-doped ceria electrolyte (CSDC) has shown highest ionic conductivity of 0.124 Scm-1. Nevertheless in comparison above mentioned electrolytes LN-SDC with LNCZFO electrodes exhibited a performance of 58mWcm-2 for sub-bituminous fuel. Instead of obtained power densities of the cell comprised of cathode-electrolyte- anode (LSCF|LN-SDC|LSFT) are 78,73,57,29 and 26 mWcm-2 at 700 oC with fuel as sub-bituminous, walnut shells, almond shells, bituminous and lignite respectively. The prepared LSFT and LSCT also have been tested as cathode which shows good performance with carbon fuel. Further to elaborate, theoretical calculations using Density Functional Theory (DFT) technique are performed to co-relate the effect of structure, dopant radius, lattice constant of doped system, density of states and band gap with the experimental results and at some point both DFT simulation and experimental results have shown the best match in terms of increase in lattice constant by decreasing band gap