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Meet the first lady of graphene, turning harmful gases into the wonder stuff


Post Date: 08 Dec 2014    Viewed: 323

The birthplace of graphene – the one-atom-thick carbon – is Manchester University, where it was created by two physicists. But Cambridge could become the adopted home of the so-called wonder-material.

A vast new facility that can make up to five tonnes of the ultra-valuable black dust each year is being built in the city and is due to open in 2015.

Cambridge Nanosystems, a university spin-out, led by chief scientist Catharina Paukner, 30, has built the factory with the help of a £500,000 grant from the Technology Strategy Board.

“It’s mind-blowing to think that not long ago, it was only possible to make a ladleful in a year. Now we can make enough to fill a whole building,” she tells The Sunday Telegraph. “And we have the capacity to increase that 100-fold.”

Graphene is one of the most interesting inventions of modern times. Stronger than steel, yet light, the material conducts electricity and heat. It has been used for a wide variety of applications, from strengthening Novak Djokovic’s tennis racket to building semiconductors.

Paukner’s two-year-old company is leading the charge to commercialise graphene. She and fellow Cambridge alumni Krzysztof Koziol have devised a way to make the material in large volumes, without compromising on quality.

Unlike existing graphene manufacturers that use graphite as their source material, or use a thermal process to bake it out of methane, Cambridge Nanosystems uses a patented plasma system to turn biogas into graphene.

This gas can either come out of the pipeline – the same natural gas that is pumped into our houses – or using waste gas.

“In America, they are starting to capture methane from cows and using it to burn for heating,” says Paukner. “But we could go one better, and convert all those methane hydrocarbons into a high-value product.”

If the idea of strapping giant gas canisters to cows seems a little far-fetched, Cambridge Nanosystems has found a more immediate source of methane.

“Landfill sites produce a lot of methane, which is a greenhouse gas,” she explains. “You can’t just let it into the atmosphere, so companies spend a lot of money flaring it off. This produces carbon dioxide, which is also bad for the planet. If we take that gas, we can make graphene, with water being the only waste product.”

Cambridge Nanosystems is running a project at a biogas plant to prove it can create graphene using this process reliably and consistently.

Cambridge Nanosystems was spun out to build equipment for the creation of graphene, but Paukner and her co-founders soon realised that graphene itself had the greatest potential.

“The possibilities are endless,” says Paukner. “I’m passionate about applications for the building industry. Imagine radiators that you can spray on any surface. We can create a kind of black ink using graphene that can be painted on to a wall or a floor.”

By attaching an electrical current to the painted area, conductive graphene heats immediately, warming the room. Plumbers would not have to install radiators, just a paintbrush, she explains.

Koziol is more excited about 3D printing with graphene. He has built a 3D printer that can make simple devices. “By using graphene in manufacturing process, costs could be reduced dramatically,” he says.

Cambridge Nanosystems is constantly developing new ways to use graphene, but will partner with corporations to bring them to market. “We have to make the prototypes to show them what can be done,” says Paukner.

The company is in talks with some of the world’s biggest aerospace and automotive corporations about ways to use graphene in composites to make super lightweight, indestructible machines that never rust.

Construction firms too are excited by the firm’s spray-on heaters and the fire retardant properties of graphene. The company is fielding enquiries from as far afield as Japan, the US and Australia.

All of these deals are subject to non-disclosure agreements, but are forecast to generate revenues of £2m within the next two years. Last year, the firm employed four people, this year they hired 10 and next year, another 20 will be brought in to cope with demand.

The Government is also keen to see graphene developed. George Osborne mentioned it in his Autumn Statement this week; he is spending £235m on a new advanced materials centre in Manchester.

The new Cambridge facility means that graphene will be available to scientists in large quantities. This may speed up breakthroughs, while Cambridge Nanosystems’ partnerships with companies ensures plenty of interest and investment. Paukner says: “I want other people to fulfil their dreams, just as we are fulfilling ours.” 


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