Doe Science news source

The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
  • 2010-02-01 19:30:00
  • Article ID: 560981

Researchers Show Applied Electric Field Can Significantly Improve Hydrogen Storage Properties

  • Credit: Image courtesy of Qian Wang, Ph.D./VCU.

    This image illustrates that an applied electric field polarizes hydrogen molecules and the substrate, inducing hydrogen absorption with good thermodynamics and kinetics.

Sathya Achia Abraham

VCU Communications and Public Relations

Phone: (804) 827-0890

Email: sbachia@vcu.edu

www.news.vcu.edu

RICHMOND, Va. (Feb. 1, 2010) – An international team of researchers has identified a new theoretical approach that may one day make the synthesis of hydrogen fuel storage materials less complicated and improve the thermodynamics and reversibility of the system.

Many researchers have their sights set on hydrogen as an alternative energy source to fossil fuels such as oil, natural gas and coal that contain carbon, pollute the environment and contribute to global warming. Known to be the most abundant element in the universe, hydrogen is considered an ideal energy carrier – not to mention that it’s clean, environmentally friendly and non-toxic. However, it has been difficult to find materials that can efficiently and safely store and release it with fast kinetics under ambient temperature and pressure.

The team of researchers from Virginia Commonwealth University; Peking University in Beijing; and the Chinese Academy of Science in Shanghai; have developed a process using an electric field that can significantly improve how hydrogen fuel is stored and released.

“Although tremendous efforts have been devoted to experimental and theoretical research in the past years, the biggest challenge is that all the existing methods do not meet the Department of Energy targets for hydrogen storage materials. The breakthrough can only be achieved by exploring new mechanisms and new principles for materials design,” said Qiang Sun, Ph.D., research associate professor with the VCU team, who led the study.

“We have made such an attempt, and we have proposed a new principle for the design of hydrogen storage materials which involves materials with low-coordinated, non-metal anions that are highly polarizable in an applied electric field,” he said.

“Using an external electric field as another variable in our search for such a material will bring a hydrogen economy closer to reality. This is a paradigm shift in the approach to store hydrogen. Thus far, the efforts have been on how to modify the composition of the storage material. Here we show that an applied electric field can do the same thing as doped metal ions,” said Puru Jena, Ph.D., distinguished professor in the VCU Department of Physics.

“More importantly, it avoids many problems associated with doping metal ions such as clustering of metal atoms, poisoning of metal ions by other gases, and a complicated synthesis process. In addition, once the electric field is removed, hydrogen desorbs, making the process reversible with fast kinetics under ambient conditions,” he said.

The team found that an external electric field can be used to store hydrogen just as an internal field can store hydrogen due to charge polarization caused by a metal ion.

“This work will help researchers create an entirely new way to store hydrogen and find materials that are most suitable. The challenge now is to find materials that are easily polarizable under an applied electric field. This will reduce the strength of the electric field needed for efficient hydrogen storage,” said Jena.

The research is published online in the Early Edition of the Proceedings of the National Academy of Sciences and will be highlighted in the front section of the print edition, ‘In this Issue.’

The research is based on a 1992 published polarization theory by Jena, the late B.K. Rao, a former professor of physics at VCU, and their student, J.Niu.

This work is supported by grants from the National Natural Science Foundation of China, the Foundation of National Laboratory for Infrared Physics, the National Grand Fundamental Research 973 Program of China, the U.S. National Science Foundation and the U.S. Department of Energy.

EDITOR’S NOTE: A copy of the study is available for reporters by email request from the PNAS News Office at (202) 334-1310 or pnasnews@nas.edu.

###

About VCU and the VCU Medical Center: Virginia Commonwealth University is a major, urban public research university with national and international rankings in sponsored research. Located on two downtown campuses in Richmond, VCU enrolls more than 32,000 students in 211 certificate and degree programs in the arts, sciences and humanities. Sixty-nine of the programs are unique in Virginia, many of them crossing the disciplines of VCU’s 13 schools and one college. MCV Hospitals and the health sciences schools of Virginia Commonwealth University compose the VCU Medical Center, one of the nation’s leading academic medical centers. For more, see www.vcu.edu.

X
X
X
  • Filters

  • × Clear Filters

new DOE

testing new DOE

Cold and Bubbly: The Sensory Qualities that Best Quench Thirst

New research from the Monell Center finds that oral perceptions of coldness and carbonation help to reduce thirst. The findings could guide sensory approaches to increase fluid intake in populations at risk for dehydration, including the elderly, soldiers, and athletes.

J.R. Macdonald Lab receives nearly $8 million DOE grant renewal

MANHATTAN -- A nearly $8 million grant from the U.S. Department of Energy is supporting the "bread and butter" physics research at Kansas State University's James R. Macdonald Laboratory. The grant is a three-year renewal award, "Structure and Dynamics of Atoms, Ions, Molecules and Surfaces." "This big operational grant is our bread-and-butter," said Itzik Ben-Itzhak, university distinguished professor of physics and director of the J.

University contributes art to the new downtown arena

A number of Sac State artworks are joining Jeff Koons' "Coloring Book" in exhibits at the new Golden 1 Center. (Sacramento State/Rob Neep) More photosSac State Professor Rachel Clarke and alumnus Bryan Valenzuela check out the installation of Valenzuela's "Multitudes Converge" glass sculpture at the Golden 1 Center.

test videoa

test videoa

Test Head

Test Desc

New Method for Reporting Solar Data

A straightforward new way to calculate, compile, and graphically present solar radiation measurements in a format that is accessible to decision makers and the general public has been developed by researchers at the University of Texas at Austin and is described in the Journal of Renewable and Sustainable Energy.

Trapped Sunlight Cleans Water

High energy costs are one drawback of making clean water from waste effluents. According to an article in the journal Biomicrofluidics, a new system that combines two different technologies proposes to break down contaminants using the cheapest possible energy source, sunlight.

Report: Policies to Spur Renewable Energy Can Lower Energy Costs

The South could pay less for its electricity in 20 years than is currently projected if strong public policies are enacted to spur renewable energy production and use, according to a report released today by researchers at the Georgia Institute of Technology and Duke University.


  • Filters

  • × Clear Filters

Citi Grant Helps University Students Succeed

Citi Community Development, part of the Citi family of businesses, supports an innovative Academic Success Program at South Dakota State University. The program is designed to help students who have been re-admitted to SDSU following suspension due to low academic achievement.

Iowa State Engineer and Goodrich Partner to Develop Fuel Nozzles

Hui Hu, an Iowa State University associate professor of aerospace engineering, is working with engineers from the Goodrich Corp. to test and characterize the next generation of fuel nozzles.

CSB to Hold Public Hearing Tomorrow, December 15, as Part of the CSB Deepwater Horizon Investigation

CSB Board Will Hear Testimony on how Offshore Drilling is Managed and Regulated in Other Countries

Cornell Joins Team Taking Head-first Plunge Into Algae Biofuels

Cornell University researchers have joined other scientists and a biofuel research company on a mission to develop a commercial-scale algae-to-fuel facility by 2015. The effort is backed by a $9 million award from the U.S. Department of Energy.

Engineering Researchers Partner With Toyota; DOE Grant Will Further Work Toward a More Efficient Charger for Hybrid-Electric Vehicles

A $3.9 million award from the U.S. Department of Energy will allow electrical engineering researchers at the University of Arkansas to continue contributing to the development of a compact and highly efficient silicon-carbide charger for hybrid electric vehicles. The benefits of the project extend beyond vehicles into other areas, such as wind and solar power, and could lead to reduced energy consumption in the United States.

Research Looks at Alternative Power for Military

South Dakota State University has a major role in a $10 million project to deliver alternative power technologies to help the U.S. military supply power to units in the field. The three-year project began in May 2009.

Mixing Blood and Oil: Conference Tackles Similar Challenges from Two Major Industries

Scientists and engineers from two of the nation's largest industries - medicine and energy - came together this week to explore the synergies in moving oil and pumping blood.

Time Ripe to Move Energy Storage Idea Off Drawing Board

Need has caught up with Case Western Reserve University researcher Gerhard Welsch's design for a self-healing, high-energy capacitor he patented a decade ago. ARPA-E has granted Welsch $2.25 million to start producing the small and lightweight device for hybrid and electric cars and more.

Registration Open for Sandia-Sponsored 4th International Conference on Integration of Renewable and Distributed Energy Resources

Registration is open for the 4th International Conference on the Integration of Renewable and Distributed Energy Resources, the premier event for technical discussion of electric integration of new energy resources.

Advanced Energy Conference To Illuminate Latest Technologies For 21st Century Clean Energy Economy

Leading Energy Organizations to Highlight Latest Job-Producing Energy Technologies at Nov. 8-9 Conference in N.Y.C.


  • Filters

  • × Clear Filters
No articles in this channel.

Spotlight

Tuesday December 07, 2010, 05:00 PM

UC San Diego Installing 2.8 Megawatt Fuel Cell to Anchor Energy Innovation Park

University of California San Diego

Monday November 01, 2010, 12:50 PM

Rensselaer Smart Lighting Engineering Research Center Announces First Deployment of New Technology on Campus

Rensselaer Polytechnic Institute (RPI)

Friday September 10, 2010, 12:40 PM

Ithaca College Will Host Regional Clean Energy Summit

Ithaca College

Tuesday July 27, 2010, 10:30 AM

Texas Governor Announces $8.4 Million Award to Create Renewable Energy Institute

Texas Tech University

Friday May 07, 2010, 04:20 PM

Creighton University to Offer New Alternative Energy Program

Creighton University

Wednesday May 05, 2010, 09:30 AM

National Engineering Program Seeks Subject Matter Experts in Energy

JETS Junior Engineering Technical Society

Wednesday April 21, 2010, 12:30 PM

Students Using Solar Power To Create Sustainable Solutions for Haiti, Peru

Rensselaer Polytechnic Institute (RPI)

Wednesday March 03, 2010, 07:00 PM

Helping Hydrogen: Student Inventor Tackles Challenge of Hydrogen Storage

Rensselaer Polytechnic Institute (RPI)

Thursday February 04, 2010, 02:00 PM

Turning Exercise into Electricity

Furman University

Thursday November 12, 2009, 12:45 PM

Campus Leaders Showing the Way to a Sustainable, Clean Energy Future

National Wildlife Federation (NWF)

Tuesday November 03, 2009, 04:20 PM

Furman University Receives $2.5 Million DOE Grant for Geothermal Project

Furman University

Thursday September 17, 2009, 02:45 PM

Could Sorghum Become a Significant Alternative Fuel Source?

Salisbury University

Wednesday September 16, 2009, 11:15 AM

Students Navigating the Hudson River With Hydrogen Fuel Cells

Rensselaer Polytechnic Institute (RPI)

Wednesday September 16, 2009, 10:00 AM

College Presidents Flock to D.C., Urge Senate to Pass Clean Energy Bill

National Wildlife Federation (NWF)

Wednesday July 01, 2009, 04:15 PM

Northeastern Announces New Professional Master's in Energy Systems

Northeastern University

Friday October 12, 2007, 09:35 AM

Kansas Rural Schools To Receive Wind Turbines

Kansas State University

Thursday August 17, 2006, 05:30 PM

High Gas Prices Here to Stay, Says Engineering Professor

Rowan University

Wednesday May 17, 2006, 06:45 PM

Time Use Expert's 7-Year Fight for Better Gas Mileage

University of Maryland, College Park





Showing results

0-4 Of 2215