Fuel
Platinum For Fuel Cells Gets Cheaper
The D
OE laboratory I work for recently published some promising results of one of our fuel cell experiments. Researchers with the Department of Energy’s SLAC National Accelerator Laboratory and the University of Houston recently found a way to get platinum to be more conductive. It doesn’t sound like much, but this is big for fuel cell technology. Anders Nilsson, one of the scientists involved explained that although fuel cell technology has been around for the past 100 years or so, it hasn’t been able to make any strides in the technology.
First, a little background on fuel cells. Fuel cells are the way we create energy from hydrogen. A fuel cell creates electricity from a chemical reaction involving oxygen and hydrogen. One of the most exciting things about fuel cell technology is that the only byproducts are two hydrogen atoms and one oxygen atom, also known as water! Platinum is currently the best catalyst we have to use with fuel cells. However if you’ve looked at the price of platinum recently, you know that the costs can be astounding for even just a plain platinum ring.
Many researchers have looked for ways around using a commodity as high priced as platinum for fuel cells. In 2008, researchers at Wuhan University in China found a way to bypass the platinum catalyst used in most fuel cells. They used a nickel anode and a silver cathode, and a powerful polymer membrane that can withstand the harshly acidic environment of the fuel cell. This acidic environment is the main reason that the high-cost precious metals are necessary in the first place. This polymer membrane has not yet proved to be even close in performance to platinum, but has proven that the idea itself has potential.
Beer Powered Cars, Ethanol Fuel from Beer Waste – I’ll Drink to That!
Sierra Nevada Brewery did something pretty green and innovative recently- they are converting their waste products into fuel for their automotive fleets. They are using the EFuel100 MicroFueler home ethanol maker along with the bottom of the barrel brewery waste of yeast and sugar to create Ethanol (E85) fuel. It’s starting out as a pilot program for just their own fleet, but they hope to expand it to include employees, distributors, and may go even further with it through E-Fuel’s distribution network.
These refrigerator-sized portable ethanol refineries raise the alcohol content in the mix to 15 percent and remove the water. With 1.6 million gallons of waste created each year (currently sold to farmers as feed), there is quite a bit of potential fuel. Creative waste solutions and environmental awareness are starting to gain traction among many micro-brewery’s, appealing to many of their ‘green minded’ customers. I love to see brewerys go green!
[via dvice]
Eco Biofuel From Biodiesel B5, B20 and B99 to Flexfuel E85 – The Future of Alternative Fuel?
Propel Biofuel Station - South Lake Union, Seattle
I was walking around the South Lake Union area of Seattle when i happened across a pretty little fueling station named Propel. It had a green roof, planters and educational interpretive signs like something you might find at a wetland or bird observation area. It looked more like a grade school garden experiment funded and built by green design architect parents. It changed the way i looked at biofuel and biodiesel stations. I was used to the more home-grown bio-diesel stations you find in Berkeley, or the backyard cookers. The ones that are old, kind of junky and funky, but at the same time give you that › Continue reading
