Video: Solid acid fuel cells—a 20-year journey to advancing the hydrogen economy

There are many challenges to realizing a hydrogen economy that occur all along the supply chain. One challenge—converting the carrier molecule ammonia back into hydrogen—could be solved using solid acid fuel cells. ACerS Fellow Sossina Haile first developed this type of fuel cell in the late 1990s. Today’s CTT looks at Haile’s 20-year journey with her first Ph.D. student, Calum R. I. Chisholm, to realize the potential of this technology.

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Aerated concrete: A ‘pore’fect tool in the construction industry’s advance toward sustainability

Reducing the amount of raw material needed to produce concrete is one way to help cut emissions in this industry. Aerated concrete, a lightweight and porous construction material, contains less raw material per volume than many other building products. Today’s CTT contains a brief overview of this material, including its history, production methods, applications, and ways to improve its end-of-life sustainability.

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Multifunctional materials for next-gen devices: Flame-resistant composite achieves low thermal and high electrical conductivities

As new energy conversion and miniaturized electronic systems are developed, it is desirable to have a material that exhibits both extremely low thermal and high electrical conductivities. University of Bayreuth researchers fabricated a flexible carbon/silicon nonwoven composite with such properties, as well as being flame resistant and thermally stable.

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