Interactive Features | Energy & Sustainability

Reinventing the Leaf: Artificial Photosynthesis to Create Clean Fuel, Made Interactive

This Web-only article is a special rich-media presentation of the feature, "Reinventing the Leaf," which appears in the October 2010 issue of Scientific American. The presentation was created by Zemi media. Find all our other interactive offerings here.



 

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  1. 1. R.Blakely 11:00 AM 9/24/10

    Carbon dioxide is not causing climate change. It absorbs totally all 15-micron light but it is very transparent to other important infrared wavelengths. More carbon dioxide cannot absorb more light to make the Earth warmer.
    A carbon dioxide laser is very efficient and it can be powered by sunlight. The l0.7 micron laser output can be converted directly to electricity, which can then charge batteries or produce hydrogen or alcohol-type fuels. Work should be done on the laser and the cell that produces electricity from 10.7-micron light. A catalyst is useful but it is only one way to solve a problem that the CO2 laser already solves.

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  2. 2. jmuielewicz 09:08 PM 9/27/10

    Wahoo!!! Here's the real deal http://photoengineering.org. Apparently Al Gore stole my pdf application when I applied for venture capital. I sent him a personal email with the data. The patents for this research is mine, if they continue with this research they and anyone else WILL be sued and everything taken away. That 135M grant and that venture capital should have gone to my company for R&D but you see what thieves MIT and CalTech are, you gotta wonder just how much intellectual property IS being stolen? I know just Google is stealing enough to employ 20,000 people to anayliss it, according to CNBC. Its amazing they don't have 1000 or 10000 lawsuits against them considering all that data that goes into their search box is the property of the person who puts it in, according to intellectual property law, and google simply steals it and makes billions from it. Everyone who uses it could pretty much sue for at least a million!

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  3. 3. YetAnotherBob 09:42 PM 9/29/10

    Some interesting tech here. I don't know if it would scale, or if it would supply enough energy.

    There are no numbers. There are no cost figures. A winning technology will have to work, and cost less than the current technology.

    If we look around enough, we will find something. The search needs to go on.

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  4. 4. whdisme 10:20 PM 10/3/10

    Nate, what is the deal with the 'Mother' nature term? This is 2010, and even God isn't referred to as 'him' much any more.

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  5. 5. WaterBalanceMgr 07:56 PM 10/7/10

    I would think the atmospheric scientists might refute or concur with Blakley.

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  6. 6. polaris in reply to R.Blakely 03:53 PM 10/8/10

    You say, quote -- "Carbon dioxide is not causing climate change. It absorbs totally all 15-micron light but it is very transparent to other important infrared wavelengths. More carbon dioxide cannot absorb more light to make the Earth warmer" --

    Even as you say CO2 absorbs only the 15 micron band, it still allows the rest, note that it is bi-directional -- both (from sun) into atmosphere as well as out (into space) from atmosphere -- and the net is what we are interested in. The net direction (of heat) has been observed to be positive (into the atmosphere) is increasing as CO2 levels are increasing. In fact, green-house effect is indeed that and can be easily illustrated and demonstrated, in a smaller scale.

    Lasers use a very tiny amount of CO2, and so is its energy, and converting that into useful (electricity) ? Do you have a demo or an idea of how that can be done? Also, can CO2 levels be reduced by building CO2 lasers ?

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  7. 7. tushar in reply to jmuielewicz 12:06 PM 10/9/10

    are you serious about what you said about that research being yours?

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  8. 8. rocket7777 09:38 AM 10/15/10

    It is better to convert it to ELECTRIC energy.

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  9. 9. eco-steve 07:34 PM 10/17/10

    Evolution has spent billions of years perfecting leaves which capture sunlight all over the World. So Pyrolysing biomass produces carbon and hydrogen. Likewise, pyrolysing fossil hydrocarbons produce carbon and hydrogen. Put the carbon in landfill to avoid expensive CCS and use the hydrogen as an energy source. This technology can be miniaturised to power vehicles or scaled up to industrial levels. See www.eprida.com or look at Wikipedia 'Biomass Pyrolysis'. Cheap, clean, safe energy for the future.

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  10. 10. Cachorro 07:25 PM 10/19/10

    I agree with Philopeantube it is true that human technology is not enough to improve the world and it is too late to do anything to help it.

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  11. 11. AleÁlvarez 04:41 PM 10/20/10

    Sugar cane is used in Brazil as fuel for cars and car producers have been working with cars powered by electricity. Man has to find ways to use and produce energy. Capturing sun rays to produce fuel seems could be an excellent idea. I agree with it since it is harmless to human beings.

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  12. 12. alatorre.3 06:01 PM 10/20/10

    it's very intersting proposal about how some elements as carbon can be produces and how energy be created for industry, and as a result of these our planet could live much longer.

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  13. 13. FannyRojas 06:01 PM 10/20/10

    Estoy de acuerdo con "yetanotherBob" podemos usar y Chean tecnología nueva y si miramos a nuestro alrededor nos encontraremos con algo, que puede ser útil y enaugh.

    Estoy de acuerdo con "R. Blakely" puede preservar los recursos naturales de un laseris dióxido de carbono puede ser alimentado por la luz del sol y se puede convertir directos prestados al electrycity, que puede bateadores de energía o producción de hidrógeno o el alcohol. Tecnología Nueva y si miramos un algoritmo Nuestro nep alrededor encontraremos en contra, los servicios Que PUEDE Útil y enaugh.

    Estoy Acuerdo de Madrid y en contra "R. Blakely" PUEDE Preservar los Recursos Naturales de las Naciones Unidas laseris dioxido de Carbono Puede Ser alimentado Por la luz del Sol y SE PUEDE Convertir Directos prestados al electrycity, Que PUEDE bateadores de Energía o Producción de Hidrógeno o el alcohol el.

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  14. 14. FannyRojas 06:10 PM 10/20/10

    I agree with " yetanotherBob" we can use and chean new technology,and if we look around we will find something, which can be helpful and enaugh.
    I agree with "R.Blakely" can preserve natural resources a carbon dioxide laseris can be powered by sun light and can be converted directy to electricity can then power batters or produce hydrogen or alcohol.

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  15. 15. alonsoalondra 08:29 PM 10/20/10

    I agree with this technology because we have to make the best for our planet.
    It´s very important for live on Earth.
    This new technology is fast but it is more important to sate the word.
    CARRILLO

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  16. 16. Cruz Martinez in reply to YetAnotherBob 09:45 PM 10/20/10

    i agree with this commental because think it's very interesting how the technology helps the planet

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  17. 17. flores diaz 11:09 PM 10/20/10

    I agree with polaris, because, well, the person who proposed this project explain the things that cause the green-house effect like the gases given off by the earth and how that increases the CO2 and how with this lasers it is possible to reduce CO2 we can't stop all these changes and at the same time, convertig this into electric energy without having any idea about how you can carry out this project, it's completly absurd to pretend that you can do it, but, haven't got any idea about you could make it.

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  18. 18. Chong in reply to eco-steve 11:58 PM 10/20/10

    I agree with Eco-Steve.
    Because the world has taken the sun's energy. Pyrolosing formen carbon and hidrogen biomass it, also produces carbon sossil fuels that can be used as a source of energy for industry which is clean and safe for the future

    Omar Chong

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  19. 19. Andiee.Becerril in reply to R.Blakely 06:02 PM 10/21/10

    I agree with R. Blakely for his interesting idea: Carbon dioxide laser could be used to charge batteries & it doesn't need more but the sunlight to convert 10.7 micron light in electricity. Too I agree that the carbon dioxide does not cause the climate change.

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