Will nanotechnology save the planet?
Sunday, May 20th, 2007
It might, according to UK’s Department for Environment, Food and Rural Affairs (DEFRA). They’ve issued a report [pdf] listing the many areas where nanotech could create huge improvements in efficiency and reduce our carbon footprint. Their main areas of focus:
- Hydrogen economy - Nanotech could help create hydrogen through photolysis, the separation of hydrogen and oxygen by light. Fuel cells could be improved by “nanosizing the catalyst,” eliminating or reducing the need for rare metals like platinum. The storage challenge might be met with spongelike nanostructures that retain hydrogen more efficiently than regular tanks.
- Fuel efficiency - Cerium oxide fuel additives which reduce the combustion temperature of diesel could reduce fuel consumption by 5%. Special ceramic coatings on jet turbines could allow them to run hotter, and therefore faster, and more efficiently.
- Solar power - a series of technologies are available, at different levels of completion. Some mimic photosynthesis, like the Grätzel cell — others arrange conventional silicon into nanoparticles.
- Batteries - Nanotechnologies can greatly increase the surface area of an electrode. While this has an advantage of increased lifespan, the greatest advantage is that it can greatly decrease charging time, and work in more extreme climates. A more advanced battery would increase the range of electric vehicles and plug-in hybrids. Supercapacitors using carbon nanotubes could also be a key storage technology.
- Insulation - Nanogels are already on the market for industrial and commercial uses. For mass foam insulation, similar technologies are in development stages.
The paper is a good read, especially if you’re looking for a few companies to invest in. Many of the technologies have already hit the blogs at one point or another, but it’s nice to see a bird’s eye view of all the potential advances.
Via Treehugger.
It might, according to UK’s Department for Environment, Food and Rural Affairs (DEFRA). They’ve issued a report [pdf] listing the many areas where nanotech could create huge improvements in efficiency and reduce our carbon footprint. Their main areas of focus:
- Hydrogen economy - Nanotech could help create hydrogen through photolysis, the separation of hydrogen and oxygen by light. Fuel cells could be improved by “nanosizing the catalyst,” eliminating or reducing the need for rare metals like platinum. The storage challenge might be met with spongelike nanostructures that retain hydrogen more efficiently than regular tanks.
- Fuel efficiency - Cerium oxide fuel additives which reduce the combustion temperature of diesel could reduce fuel consumption by 5%. Special ceramic coatings on jet turbines could allow them to run hotter, and therefore faster, and more efficiently.
- Solar power - a series of technologies are available, at different levels of completion. Some mimic photosynthesis, like the Grätzel cell — others arrange conventional silicon into nanoparticles.
- Batteries - Nanotechnologies can greatly increase the surface area of an electrode. While this has an advantage of increased lifespan, the greatest advantage is that it can greatly decrease charging time, and work in more extreme climates. A more advanced battery would increase the range of electric vehicles and plug-in hybrids. Supercapacitors using carbon nanotubes could also be a key storage technology.
- Insulation - Nanogels are already on the market for industrial and commercial uses. For mass foam insulation, similar technologies are in development stages.
The paper is a good read, especially if you’re looking for a few companies to invest in. Many of the technologies have already hit the blogs at one point or another, but it’s nice to see a bird’s eye view of all the potential advances.
Via Treehugger.


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