Transportation

Pennsylvania State University (Penn State) is developing a novel sunlight to chemical fuel conversion system. This innovative technology is based on tuning the properties of nanotube arrays with co-catalysts to achieve efficient solar conversion of CO2 and water vapor to methane and other hydrocarbons. The goal of this project is to build a stand-alone collector which can achieve ~2% sunlight to chemical fuel conversion efficiency via CO2 reduction.

Iowa State University (ISU) is genetically engineering a species of aquatic microalgae called Chlamydomonas for more energy efficient conversion of sunlight and carbon dioxide to biofuels. Current microalgae genetic technologies are imprecise and hinder the rapid engineering of a variety of desirable traits into Chlamydomonas. In the absence of genetic engineering, it remains unlikely that current microalgae technologies for biofuel production will be able to economically compete with traditional fossil fuels.

Inorganic Specialists’ project consists of material and manufacturing development for a new type of Li-Ion battery material, a silicon-coated paper. Silicon-based batteries are advantageous due to silicon’s ability to store large amounts of energy. Yet, the technology has not been able to withstand multiple charge/discharge cycles. The thinner the silicon-based material, the better it can handle multiple charge/discharge cycles. Inorganic Specialists’ extremely thin silicon-coated paper can store 4 times more energy than existing Li-Ion batteries.

FastCAP Systems is improving the performance of an ultracapacitor—a battery-like electronic device that can complement, and possibly even replace, an HEV or EV battery pack. Ultracapacitors have many advantages over conventional batteries, including long lifespans (over 1 million cycles, as compared to 10,000 for conventional batteries) and better durability. Ultracapacitors also charge more quickly than conventional batteries, and they release energy more quickly.

Exelus is developing a method to convert olefins from oil refinery exhaust gas into alkylate, a clean-burning, high-octane component of gasoline. Traditionally, olefins must be separated from exhaust before they can be converted into another source of useful fuel. Exelus' process uses catalysts that convert the olefin to alkylate without first separating it from the exhaust. The ability to turn up to 50% of exhaust directly into gasoline blends could result in an additional 46 million gallons of gasoline in the U.S. each year.

Ceres is developing bigger and better grasses for use in biofuels. The bigger the grass yield, the more biomass, and more biomass means more biofuel per acre. Using biotechnology, Ceres is developing grasses that will grow bigger with less fertilizer than current grass varieties. Hardier, higher-yielding grass also requires less land to grow and can be planted in areas where other crops can't grow instead of in prime agricultural land.

E. I. du Pont de Nemours & Company (DuPont) and Bio Architecture Lab are exploring the commercial viability of producing fuel-grade isobutanol from macroalgae (seaweed). Making macroalgae an attractive substrate for biofuel applications however, will require continued technology development. Assuming these developments are successful, initial assessments suggest macroalgae aquafarming in our oceans has the potential to produce a feedstock with cost in the same range as terrestrial-based substrates (crop residuals, energy crops) and may be the feedstock of choice in some locations.

Arizona State University (ASU) is developing a new class of metal-air batteries. Metal-air batteries are promising for future generations of EVs because they use oxygen from the air as one of the battery's main reactants, reducing the weight of the battery and freeing up more space to devote to energy storage than Li-Ion batteries. ASU technology uses Zinc as the active metal in the battery because it is more abundant and affordable than imported lithium.

Arizona State University (ASU) is engineering a type of photosynthetic bacteria that efficiently produce fatty acids—a fuel precursor for biofuels. This type of bacteria, called Synechocystis, is already good at converting solar energy and carbon dioxide (CO2) into a type of fatty acid called lauric acid. ASU has modified the organism so it continuously converts sunlight and CO2 into fatty acids—overriding its natural tendency to use solar energy solely for cell growth and maximizing the solar-to-fuel conversion process.

Michigan State University (MSU) is developing a new engine for use in hybrid automobiles that could significantly reduce fuel waste and improve engine efficiency. In a traditional internal combustion engine, air and fuel are ignited, creating high-temperature and high-pressure gases that expand rapidly. This expansion of gases forces the engine's pistons to pump and powers the car. MSU's engine has no pistons.