A Graphene Revolution?

Figure 1 from http://www.cnn.com/2014/12/23/tech/innovation/tomorrow-transformed-graphene-battery/index.html

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As our supply of non-renewable energy sources becomes increasingly scarce, it is becoming more and more apparent that the survival of our planet is dependent almost solely on our ability to implement both efficient and conservational practices in our daily energy usage. Researchers at Manchester University in the United Kingdom have made a very progressive step towards this goal with the discovery of graphene––a newfound substance with the same atomic structure as the graphite found in a pencil. Figure 1 shows a graphene sample scaled next to the tip of a graphite pencil.

CNN’s Tomorrow Transformed column calls graphene “the most revolutionary advance in battery technology yet.” The substance earned this praise for its energy-efficient properties with regard to electrical power, such as its ability to conduct electricity even better than copper. In its simplest form, graphene is only one atom thick and more than 1 million times thinner than a human hair. Despite the fact that it is extremely thin and almost weightless (in fact it is the first two dimensional crystal known to science), graphene is harder than a diamond and 200 times stronger than steel, making it extremely durable and long-lasting. Manchester University’s Graham Templeton states, “No known material can approach this combination of abilities.” This makes graphene far superior to other substances (such as copper and steel), which are vital components of the electronic appliances that we use everyday such as smartphones, laptops, television sets, etc. This is because it lasts very long, does not need to be replenished frequently, and conducts electricity with minimal risk of wasted energy. Figure 2 displays the atomic makeup of graphene in its simplest form.

Figure 2 from http://www.cnn.com/2014/12/23/tech/innovation/tomorrow-transformed-graphene-battery/index.html

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Arguably the most groundbreaking discovery that Manchester University’s researchers made was a graphene membrane’s ability to literally harvest hydrogen from the atmosphere. The researchers claim that this harvesting “could be combined with fuel cells to create a mobile electric generator fueled simply by hydrogen present in air.” This method of hydrogen generation is far superior to our current method, in which hydrogen is obtained almost entirely from fossil fuels such as coal, oil, and natural gas.

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