الـ”فيفا” تصدم حكام الجزائر تزامنا مع انطلاق الـ”شان” والقرار حرك غضب الكابرانات
الرئيسة الجمعة 06 يناير 2023 12:37 مساءً
حاسي سيتي
ضربة موجعة، تلك التي وجهها الاتحاد الدولي لكرة القدم “فيفا”، إلى السلطات الجزائر، بعد أن قرر تنظيم قرعة بطولة كأس العالم للأندية، المزمع تنظيمها بالمغرب، بداية شهر فبراير المقبل، بالموازاة مع يوم افتتاح بطولة إفريقيا للمنتخبات المحلية (الشان) التي تنظمها الجارة الشرقية بداية من الـ 13 من الشهر الجاري.
وكانت السلطات الجزائرية تراهن على حضور “جياني إنفانتينو”، رئيس الاتحاد الدولي لكرة القدم، بمعية رئيس الـ “الكاف”، الجنوب إفريقي “باتريس موتسيبي”، خلال افتتاح الـ”الشان” الإفريقي، من أجل إضفاء شرعية على هذه التظاهرة الكروية التي أثارت جدلا واسعا قبل انطلاقها، خاصة بعد الغموض الذي يلف قرار منع نقل الوفد المغربي عبر طائرة خاصة، في رحلة مباشرة من الرباط صوب قسنطينة.
غير أن رياح الـ”فيفا” أتت بما لا تشتهي سفن الجارة الشرقية، سيما بعدما قرر رئيسي الـ”فيفا” والـ”كاف” حضور مراسم قرعة مونديال الأندية التي ستنظم بالمركز الرياضي محمد السادس، يوم الـ 13 من شهر يناير الجاري، وهو نفس اليوم الذي سيشهد انطلاق فعاليات بطولة كأس إفريقيا للمنتخبات المحلية الذي سينظم في الجزائر.
هذا القرار بحسب كل المتابعين في الجارة الشرقية، اعتبر صفعة قوية لحكام الجزائر، الذين كانوا يمنون النفس بحضور مسؤولي الاتحادين الدولي والإفريقي، بهدف كسب إشعاع دولي، غير أن أهمية وأولوية حدث المونديال الذي سيحتضنه المغرب، عجل باتخاذ هذا القرار الذي سيجعل من “شان” الجزائر، حدثا كرويا دون أهمية، الأمر الذي حرك غضب حكام الجارة الشرقية ومن يحومون في فلكهم، بل ودفعهم إلى استصدار أحكام جاهزة ضد المغرب، مفادها أن “لقجع” هو من كان وراء تنظيم قرعة مونديال الأندية في نفس اليوم الذي سيشهد انطلاق بطولة الـ”الشان”.
Copper oxide recycling Recently, there has been growing interest in developing efficient and selective catalytic processes for the conversion of carbon dioxide (CO2) to valuable chemicals such as ethanol. In this regard, metal-organic frameworks (MOFs) have emerged as promising solid catalysts due to their tunable pore structures, high surface area, and versatile chemistry. In a recent study, a team of researchers developed a new MOF catalyst featuring cooperative copper centres that offers high selectivity towards the conversion of CO2 to ethanol. The catalyst was prepared by incorporating copper ions into the pores of a MOF called HKUST-1, which is known for its high stability. The researchers found that the presence of multiple copper ions in close proximity to each other within the MOF framework created a synergistic effect that promoted the reduction of CO2 to ethanol with high selectivity. The copper centres cooperatively activated the CO2 and then catalysed the conversion of the resulting intermediate species to ethanol. The team used a combination of experimental techniques and computational modelling to understand the mechanism of this cooperative behaviour. They found that the copper ions interacted with each other through bridging oxygen atoms in the MOF framework, which allowed for efficient electron transfer between them and facilitated the reduction of CO2. In addition to its high selectivity, the MOF catalyst also exhibited high stability over multiple catalytic cycles. The researchers attribute this to the strong interaction between the copper ions and the MOF framework, which prevented the leaching of the metal species. Overall, this study demonstrates the potential of MOFs as promising solid catalysts for converting CO2 into high-value chemicals such as ethanol, and highlights the importance of cooperative interactions between metal centres for achieving high catalytic activity and selectivity Scrap metal trade associations Export procedures for Copper scrap Industrial copper decommissioning Copper scrap export and trade Copper scrap reuse Metal waste removal
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Copper oxide recycling Recently, there has been growing interest in developing efficient and selective catalytic processes for the conversion of carbon dioxide (CO2) to valuable chemicals such as ethanol. In this regard, metal-organic frameworks (MOFs) have emerged as promising solid catalysts due to their tunable pore structures, high surface area, and versatile chemistry. In a recent study, a team of researchers developed a new MOF catalyst featuring cooperative copper centres that offers high selectivity towards the conversion of CO2 to ethanol. The catalyst was prepared by incorporating copper ions into the pores of a MOF called HKUST-1, which is known for its high stability. The researchers found that the presence of multiple copper ions in close proximity to each other within the MOF framework created a synergistic effect that promoted the reduction of CO2 to ethanol with high selectivity. The copper centres cooperatively activated the CO2 and then catalysed the conversion of the resulting intermediate species to ethanol. The team used a combination of experimental techniques and computational modelling to understand the mechanism of this cooperative behaviour. They found that the copper ions interacted with each other through bridging oxygen atoms in the MOF framework, which allowed for efficient electron transfer between them and facilitated the reduction of CO2. In addition to its high selectivity, the MOF catalyst also exhibited high stability over multiple catalytic cycles. The researchers attribute this to the strong interaction between the copper ions and the MOF framework, which prevented the leaching of the metal species. Overall, this study demonstrates the potential of MOFs as promising solid catalysts for converting CO2 into high-value chemicals such as ethanol, and highlights the importance of cooperative interactions between metal centres for achieving high catalytic activity and selectivity Scrap metal trade associations Export procedures for Copper scrap Industrial copper decommissioning Copper scrap export and trade Copper scrap reuse Metal waste removal
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