NOTE TO JOURNALISTS: A photo of Allan Jacobson is available on
the Web at http://www.uh.edu/media/nr/2004/04apr/41504jacobson_photo.html.
A high-resolution photo is available by contacting Lisa Merkl.
SPIRIT OF TEAMWORK EARNS
PROFESSOR UH’S TOP FACULTY AWARD
Allan Jacobson, Farfel Award Recipient, at Forefront of Energy Alternatives
Research
HOUSTON, April 21, 2004 – An expert collaborator and leading
innovator in the field of materials chemistry, UH Chemistry Professor
Allan Jacobson is this year’s recipient of the Esther Farfel
Award, the University of Houston’s highest faculty honor.
Carrying with it a cash prize of $10,000, the Farfel Award is described
as “a symbol of overall career excellence.” A prime
example of that has been Jacobson’s fuel cell research that
has uncovered a bevy of other discoveries. Jacobson was honored
last week at a ceremonial dinner, along with other UH educators
who had won awards this year. (See related release.)
“This is a very important award for a faculty member at UH,
and it is a great honor to have been selected,” Jacobson said.
“Of course, one of the most important things about this university
has been the opportunity to collaborate with people, not only in
the chemistry department but in other departments, such as chemical
engineering and physics. That has been very important in my research
and has made a real difference in the work I do.”
In his roles as the Robert A. Welch Chair of Science and director
for the UH Center for Materials Chemistry, Jacobson has the enviable
position of working with a number of talented researchers, as well
as participating in his own cutting-edge materials experimentation,
that one day will influence electric power generation.
Cheap, clean power has been a top goal for energy researchers,
and Jacobson may be well on his way to making it happen. Thoroughly
enjoying his work, he seeks out particularly complicated scientific
problems and then embarks on a journey to decipher how everything
fits together to arrive at various solutions.
While the road to the next generation electric power industry might
ultimately include hydrogen-cooled superconducting transmission
lines, nuclear energy and renewables, it is, in fact, paved with
many hidden treasures. More specifically, the goal of lowering energy
costs while reducing chemical and noise pollution is initially leading
to such perks as “silent” generators and small oxygen
boxes replacing bulky tanks in hospitals, compact and distributed
power in urban areas and auxiliary power units for a variety of
industries.
“With fuel cells, it’s all about reaction rates,”
Jacobson said. “Chemical reaction rates determine power output,
with higher temperatures resulting in faster rates that leads to
more power generated. Our goal is to investigate different materials
used as components in fuel cells in an attempt to make these reactions
work at lower temperatures.”
If successful, Jacobson’s solid oxide fuel cell (SOFC) research
has the potential to substantially improve how electricity is generated,
making it less expensive and more environmentally friendly. From
a cost perspective, a key approach is to reduce the temperature
at which SOFCs operate. Intermediate temperature operation has a
significant impact on cost by allowing the use of less expensive
materials, such as metals, in interconnects and heat exchangers
and by increasing reliability. Improvements in the properties of
the materials and the development of inexpensive fabrication processes
is thus a main focus of Jacobson’s research.
Environmental benefits include high-energy conversion efficiency
that means generating more power with the same amount of fuel, resulting
in less greenhouse gases. Additionally, since fuel cell power generation
does not use combustion, pollutants such as nitrogen and sulfur
oxides would be reduced. Another benefit with SOFCs is noise reduction.
Relying on electrochemical reactions rather than combustion, fuel
cells have few moving parts, resulting in the absence of noise.
This silence would be particularly beneficial in using SOFCs as
back-up power for hospitals and public buildings. In fact, the Central
Park Precinct police station in New York City kept going during
the mass power outage this past year because of its fuel cell power
system. The system was installed because it was less expensive to
use the existing natural gas line than to put in more transmission
lines. So, the concept of using distributed power in high-rise buildings
or even in individual homes, may not be so far off in the future.
Jacobson, however, feels that initial SOFC application will be
with auxiliary power units for use in more niche markets. Providing
diesel engine powered trucks with fuel cell power units to maintain
air conditioning and refrigeration when the vehicle is stationary
is in the more immediate future. This would aid in saving fuel and
sparing the environment when big-rig drivers switch to such a mode
when staying over in rest stops while needing to keep their loads
refrigerated.
Perhaps even better known for the work being done with ion-transport
membrane reactors, Jacobson and his colleagues at the UH Center
for Materials Chemistry have been investigating this cost-effective
alternative to conventional methane conversion processes since the
mid-1990s. This technology is able to integrate oxygen separation
and methane partial oxidation into a single step at a cost savings
of 30 percent relative to existing processes.
“This technology is being developed by a number of companies
in the United States,” Jacobson said. “It’s a
separation technology that primarily separates oxygen from air at
high temperatures by the process of oxygen ion rather than molecule
transport. This produces extremely pure oxygen.”
A way to simplify how oxygen is made, the ion-transport membranes
process could result in a base application to produce ultra high-purity
oxygen for use in hospitals, replacing oxygen tanks with small space-saving
generators.
An even stronger driver and ultimate commercial goal for this application
is its ability to make additional use of the most cost-intensive
component of fuel production by integrating it with other high-temperature
steps in the process. Simply put, ion-transport membranes reduce
the cost of producing oxygen, which is the element needed to convert
natural gas to synthetic gas (commonly called syn gas), used in
hydrogen production and making liquid fuels. This cost savings could
eventually lead to liquid fuels at a price competitive with refined
products from oil. Hydrogen production, currently a very expensive
proposition, is one of the other main targets for this technology.
Connecting this back to Jacobson’s SOFC research, the same
types of materials are being investigated for application in both
processes in order to obtain improved properties and to make things
much more feasible from a cost standpoint. Both of these programs
are significantly furthered by recent Department of Energy grants,
as well as UH’s participation in multiple consortiums with
other universities and private-sector corporations.
SOURCE: Jacobson 713-743-2785; ajjocob@uh.edu
Web page: http://www.chem.uh.edu/Faculty/Jacobson/Index.html
About the University of Houston
The University of Houston, Texas’ premier metropolitan research
and teaching institution, is home to more than 40 research centers
and institutes and sponsors more than 300 partnerships with corporate,
civic and governmental entities. UH, the most diverse research university
in the country, stands at the forefront of education, research and
service with more than 35,000 students.
About the Center for Materials Chemistry
The Center for Materials Chemistry at UH is the continuation of
the Materials Center that was established by the National Science
Foundation in September 1996. A multi-disciplinary center, the group
brings together researchers from physics, chemistry and chemical
engineering. With its two major research themes of advanced oxides
and nanoscience, the center conducts basic and applied research,
as well as utilizing experimental and theoretical methods, to synthesize,
characterize and process existing and new materials. These materials
are then used in applications ranging from fuel cells and sensors
to microelectronic devices and tissue engineering. Education and
training of material scientists and engineers are important components
of the program, providing hands-on research experience.
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For more information about UH visit the universitys Newsroom at www.uh.edu/admin/media/newsroom.
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