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پروفیسر حا فظ محمود خان شیرانی

پروفیسر حافظ محمود خان شیرانی مرحوم
ہم کو ابھی تک اپنے ملک کے علماء اور محققین کی پوری قدر نہیں ہوئی، کیسے افسوس کی بات ہے کہ ہماری قوم اور ملک کے ایک نامور محقق پروفیسر حافظ محمود خان شیرانی کا انتقال ۱۶؍ فروری ۱۹۴۶؁ء کو ٹونک میں ہوگیا، اور ہم میں سے بہتوں کو اس کی خبر نہیں ہوئی۔
شیرانی مرحوم کا وطن ٹونک تھا، شیرانی پٹھان تھے، اور ان کو اپنے پٹھان ہونے پر فخر تھا، ٹونک ہمیشہ سے علماء اور محققین کا مقام رہا، وہاں کا نادر کتب خانہ اکثر محققوں کو اپنی طرف کھینچ کر لے جایا کرتا ہے، اور شیرانی کا تو وہ وطن ہی تھا، شیرانی صاحب کی انگریزی کی استعداد پوری تھی، فارسی کی تعلیم متوسط اور عربی کی معمولی مگر ان میں تحقیق و تلاش کا مادہ فطرۃً تھا، تاریخ اور خصوصاً تاریخ ادب سے ان کو بے حد شغف تھا، تاریخ کے ذوق سے ان کو کتبوں اور سکون کا شوق تھا، اسی شوق سے وہ لکھنؤ بھی آتے تھے، اور چونکہ ہمارے مدرسہ دارالعلوم ندوۃ العلماء کے درس اول و شیخ الحدیث مولانا حیدر حسن خان صاحب مرحوم بھی ٹونکی تھے، اس تعلق سے وہ کبھی کبھی ہمارے مدرسہ میں بھی ٹھہرتے تھے اور اسی واسطہ سے میری ان کی ملاقات ہوئی، اور اس کے بعد جب وہ لاہور تھے، تو کئی بار ملنا ہوا۔
مرحوم کا سال پیدایش ۱۲۹۸؁ھ ہے، عمر قریباً سرسٹھ برس تھی ۱۹۰۴؁ء میں اسکول کی تعلیم چھوڑ کر بیرسٹری کے لیے لندن گئے، جہاں سے والد کی وفات پر ۱۹۰۶؁ء میں واپس آئے، پھر فوراً واپس گئے، اور ۱۹۱۴؁ء میں واپس آئے، بیرسٹرتو نہیں ہوئے، مگر قلمی کتابوں کا شوق پید اہوگیا، پیرس کے قومی کتب خانہ میں تین ماہ مصروف رہے، اور وہیں بعض فرانسیسی اہل علم کے ساتھ مل کر...

قرآن كا سات حروف پر نازل ہونا

According to Hadith literature, the Quran is revealed in seven Ahruf, the plural of harf. Ahruf are distinct from Qira'at. This is a very momentous and lengthy topic, indeed, one of the most complicated discussions on the sciences of the Qur’an. It is very difficult to discuss it in full details in this work but the important things about it are being presented in this article. The first problem we face with this Hadith is what is meant by the Revelation of Qur’an on Seven “Ahruf”? We find a great deal of difference of opinion on this subject. Up to thirty five different views have been quoted by Ibn al-‘Arabi and others. Some of the popular views are quoted in this article. The context of these narrations indicates clearly that the word ‘seven’ does not denote an unspecified large number but it denotes the specific numerical value ‘seven’. Hence, in the light of these narrations this view (that seven means more than that) does not hold good and the majority of scholars reject it. In the vast collections of Hadiths, we do not find any mention of difference in the Qur’an other than that accounted for in “ahruf”. How then may we explain differences in reading and “ahruf”? I have not been able to find a satisfactory answer to this confusion with the advocates of this theory.

Functional Carbon Materials Derived from Metal-Organic Frameworks Mofs for Electrochemical Energy Storage and Coversion

World electricity demand is estimated to double by the mid-century and to triple by the end of the century, even after efficient conservation technology development. Fossil fuels such as natural gas and oil, the major contributors to global electricity generation, are anticipated to peak-over in the following few decades. The generation of electrical energy from renewable resources instead of from fossil fuels has received great interest due to the resource limitations and environmental impacts of the latter. Renewables such as solar radiation and wind face significant challenges of time-dependent intensity fluctuation and natural geographical distribution. Among the different strategies for smoothing the disordered renewables, the electrical energy storage and conversion has been recognized the most efficient and effective approach. Energy storage in the form of charges include supercapacitors and battery technologies, the former is very effective in terms of power density while the latter is the best option in terms of energy density. Energy conversion devices include fuel cells, which can generate electricity from chemical fuels with large efficiency and zero pollutant emission and are very suitable for use in vehicle engines and portable electronics. In the first part of this research work, different MOFs precursors, namely MOF-5, Zn-BTC, MOF-199, MIL-101(Cr) and ZIF-12 are converted to pure carbon, and metal oxide decorated carbon structures by the inert-atmosphere template carbonization approach. MOF-derived carbon nanospheres and microporous carbons have delivered specific capacitance in the range of 150 to 350 F g–1, the optimum performance of the designed electrode materials in comparison to the literature. In long-term cycling performance, the copper oxide decorated graphitic carbons and the chromium oxide decorated turbostratic graphitic carbons retained about 95% of their initial capacitance. The novel innovative hybrid composite of cobalt oxide embedded N-doped carbon nanotubes (CNTs) from single-step calcination of ZIF-12 has shown an excellent lithium charge/discharge and storage, retaining ~95% capacity after 50 cycles and a reversible capacity of ~1100 mA h g–1 at a current density of 0.1 A g–1, which far exceeds the performance of conventional lithium ion battery anode materials under similar conditions. In the second part of this research work, platinum group metal-type (PGM-type) catalysts were deposited on MOF-5-derived high-surface area carbon and electrochemically evaluated for the fuel cell cathodic sluggish oxygen reduction reaction (ORR). The Pt-Ni composition (1:1) exhibited a pronounced positive shift of 90 mV in onset-potential while the Pt-Cu composition (1:1) has delivered an outstanding stability and longevity when evaluated against the commercial Pt/C (20%) catalyst. The significantly improved activity and stability of the catalysts can be attributed to the Pt electron interaction with first-row transition metals and carbon support that prevents the nanoparticles from agglomeration and dissolution as has been proved in X-ray and microscopic analysis.
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