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New Methane Storage Technology Exceeds DOE Goals

Date:
January 24, 2008
Source:
American Chemical Society
Summary:
In a major advance in alternative fuel technology, researchers report development of a sponge-like material with the highest methane storage capacity ever measured. It can hold almost one-third more methane than the U.S. Department of Energy's (DOE) target level for methane-powered cars, they report in a new study.

This colorful image represents a nano-sized crystalline cage that shows promise as a superior storage material for methane.
Credit: Courtesy of Shengqian Ma, Miami University

In a major advance in alternative fuel technology, researchers report development of a sponge-like material with the highest methane storage capacity ever measured. It can hold almost one-third more methane than the U.S. Department of Energy's (DOE) target level for methane-powered cars, they report in a new study.

Hong-Cai Zhou and colleagues note that lack of an effective, economical and safe on-board storage system for methane gas has been one of the major hurdles preventing methane-driven automobiles from competing with traditional ones.

Methane stands out among various alternative fuels when its profusion and availability are considered. However, the lack of an effective, economic and safe on-board storage system is one of the major technical barriers preventing methane-driven automobiles from competing with the traditional ones, say the study authors.

Recently, highly-porous, crystalline materials called metal-organic frameworks (MOFs) have emerged as promising storage materials due to their high surface areas. However, none of the MOF compounds have reached DOE target levels considered practical for fuel storage applications, the scientists say.

The report describes development of a new type of MOF, called PCN-14, that has a high surface area of over 2000 m2/g. Laboratory studies show that the compound, composed of clusters of nano-sized cages, has a methane storage capacity 28 percent higher than the DOE target, a record high for methane-storage materials, the researchers say.

The article "Metal-Organic Framework from an Anthracene Derivative Containing Nanoscopic Cages Exhibiting High Methane Uptake" is scheduled for the Jan. 23 issue of ACS' Journal of the American Chemical Society.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "New Methane Storage Technology Exceeds DOE Goals." ScienceDaily. ScienceDaily, 24 January 2008. <www.sciencedaily.com/releases/2008/01/080121101027.htm>.
American Chemical Society. (2008, January 24). New Methane Storage Technology Exceeds DOE Goals. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2008/01/080121101027.htm
American Chemical Society. "New Methane Storage Technology Exceeds DOE Goals." ScienceDaily. www.sciencedaily.com/releases/2008/01/080121101027.htm (accessed September 21, 2014).

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