EC - tremendously under heat changes The core of his...

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Tanisha Billups Bio 120 November 15, 2010 A Brief History of Carbon By Dr. Robert F. Curl “A Brief History of Carbon” was presented by Dr. Robert F. Curl on Monday November 15, 2010 at Spelman College. His discussion was on the nature and importance of the element Carbon. The beginning of his lecture was about the origins of Carbon and its forms: graphite and diamond. In his introduction, he also gave some fun facts about the world’s largest diamond, found in Africa weighing 2000 carats. He then discussed the categories of amorphous carbon: activated charcoal, fiber, and vitreous carbon. Vitreous carbon is chemically inert and can be heated up to 3000 C without any physical or chemical changes but can expand its surface area
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Unformatted text preview: tremendously under heat changes. The core of his lecture was about fullerenes. He gave a detailed explanation of its nature. Fullerenes are molecules that are made of only carbon atoms forming a 3D molecule. The most famous structure is the soccer ball which contains 60 carbon atoms and is made of connected benzene and pentagon rings. The fullerene contains 12 pentagons regardless of its size and has a minimum of 24 carbon atoms. Dr. Curl also discussed the Arc Apparatus for Making Fullerenes in his lecture. The apparatus can make fullerene molecules using a bell jar and graphite bars....
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