As gasoline prices climb ever higher and the U.S. Senate backs oil drilling in Alaskas Arctic National Wildlife Refuge, the possibility of a hydrogen economy -- where drivers tank up on clean-burning hydrogen fuel -- gleams more brightly. But two Northwestern University engineers stress the need to get more out of the fuel we are already using.
"A hydrogen economy is not a perfectly clean system," said Scott A. Barnett, professor of materials science and engineering. "You have to process fossil fuels at a plant to produce hydrogen fuel as well as develop an infrastructure to get that fuel into vehicles. We have bypassed these technological hurdles by basically bringing the hydrogen plant inside and pairing it with a high-temperature fuel cell in one compact unit that has a fuel efficiency of up to 50 percent."
In a paper to be published online today (March 31) by the journal Science, Barnett and graduate student Zhongliang Zhan report the development of a new solid oxide fuel cell, or SOFC, that converts a liquid transportation fuel -- iso-octane, a high-purity compound similar to gasoline -- into hydrogen which is then used by the fuel cell to produce energy. The cells could lead to cost-effective, clean and efficient electrical-power sources for applications ranging from aircraft and homes to cars and trucks.
Megan Fellman | EurekAlert!
Linear potentiometer LRW2/3 - Maximum precision with many measuring points
17.05.2017 | WayCon Positionsmesstechnik GmbH
First flat lens for immersion microscope provides alternative to centuries-old technique
17.05.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences
The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.
The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
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23.05.2017 | Event News
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29.05.2017 | Physics and Astronomy
29.05.2017 | Physics and Astronomy
29.05.2017 | Earth Sciences