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Fuel cell research at Rensselaer will get a significant boost thanks to an unusual package received recently by Brian Benicewicz, professor of chemistry and director of the New York State Center for Polymer Synthesis at Rensselaer. The center is working with Celanese Ventures GmbH (a division of Celanese AG of Germany), the state of New York, and Plug Power Inc. to develop a more economical polymer membrane for use in PEM (proton exchange membrane) fuel cells. Fuel cells have emerged as a promising new technology in helping to meet the worlds energy needs. They are electrochemical devices that combine hydrogen and oxygen to produce electric power without combustion. Polymer membranes play a critical role in the devices. The Rensselaer research is going well so well that Celanese recently delivered nearly 200 pounds of a special monomer used to create polybenzimidazole (PBI), the polymer Benicewicz is studying for fuel cell use. The monomer is valued at more than $400,000. Our ability to prepare new polymers is an underlying strength of our research program, and we utilize this key monomer in all of the synthesis work, says Benicewicz. In the past, Celanese has supplied us with sufficient quantities of this monomer on an as-needed basis. The company decided to send us enough to ensure a constant supply. Benicewicz says that the monomer is available commercially, but not in the quality and purity that is available to Celanese. He notes, If we were to buy the equivalent quantity of monomer from a standard supply house which only sells it in very small amounts it would cost more than $400,000. This represents generous support of the program and a vote of confidence by Celanese, which also has contributed $2 million to the R&D program for fuel cell research. I have been asked by many researchers about our supply of monomer, since it is well-known that the monomer is expensive and difficult to obtain in high purity, states Benicewicz. Our arrangement with Celanese is a huge advantage to our work since other research groups, worldwide, do not have access to such supplies. The availability of the large amount of this key polymer building block will allow researchers to go beyond normal laboratory-scale work, and permit the research of the Center for Polymer Synthesis to make more rapid progress. |
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| Rensselaer Magazine: March 2003 | ||||
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