MOF Gas Storage Title
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Gas storage in metal organic frameworks. 1. Metal organic frameworks has surface area more than 40 tennis courts per gram. So, it has high adsorption capacity. 2. Gas storage in a cylinder filled with MOFs can store much more gas than empty cylinder. 3. Apart from storage ,MOFs can also be used for Gas Separation.
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MOF Gas Storage Title
- 1. Gas Storage in Metal- Organic Frameworks Nitish Kumar APE UP (2015-2019) University of petroleum and energy studies, Dehradun Uttarakhand, India MOFs
- 2. Content Introduction Environmental Issues Solution Synthesis Application Conclusion
- 3. INTRODUCTION DEFINITION Metal-organic frameworks (MOFs) are a new class of ultra porous, highly crystalline materials linking inorganic and organic units by stong linking bonds or linkers. It has world record in large surface area ( i.e. from 100 to over 6000 m2 g-1) pore size (i.e. 0.2 to 3.8 nm) and lower densities (i.e. 1.00 to 0.09 g cm-3). Highly Flexible High Tunability
- 4. Example - UiO-66 is an archetypal zirconium-based metal–organic framework (MOF)
- 5. 1. Relation with Environment Green House Effect Main greenhouse effect causing gases are • Carbon dioxide • Methane
- 6. Solution Carbon Capture and sequestration The structural tunability and flexibility of MOFs helps in easy selective adsorption of Carbon dioxde at room temperature. Desorption can be done by heating “MOFs have been identified as the most promising next-generation technology for carbon capture.” US Department of Energy
- 7. 2.Relation with Environment Air pollution According to the WHO, Air pollution in India is estimated to kill 1.5 million people from chronic respiratory diseases and asthma every year. In November 2017, in an event known as the Great smog of Delhi, it was found out that Levels of PM2.5 and PM 10 (particulate matter) hit 999 micrograms per cubic meter, while the safe limits = 60 and 100 respectively. Low visibility has resulted in accidents across the city, notably a 24 vehicle pile-up on the Yamuna Expressway.
- 8. 2.Solution Fine particles capture through electrostatic adsorption by MOFs. According to a study published in Nature journal , the MOFs can filter up to 99.5% of PM 2.5 and PM 10 in lab tests. (PM 2.5 and PM 10 are small particles less than 2.5 and 10 micrometers in diameter respectively. ) Under the irradiation of visible light, MOFs leads to sunlight catalysis, decomposing harmful organic matter into carbon dioxide and water, which makes the filtration efficiency sustained, long-lasting and without secondary pollution.
- 9. Applications Gas Separation Gas storage (hydrogen , methane) Carbon Dioxide capture separation of CO2 from flue gas. MOFs have adsorption properties and can increase the performance of heat exchanging systems i.e. in industrial cooling systems.
- 10. Other APPLICATIONS Apart from all this the MOF have several number of applications like- Hydrogen and methane storage Selective gas adsorption . Catalysis due to active metal sites And researches is still going…….
- 11. Conclusion MOFs is one of the best solution to cope with pollution issues ,notably in Delhi. In future ,Cars and Chimneys with inbuilt MOFs may directly adsorb carbon dioxde from the exhaust. Open metal site MOFs preferentially adsorb carbon dioxide over nitrogen or methane Catalysis due to active metal sites And researches is still going…….
- 12. Thank you