April 2017 | AIChE

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April 2017

Sulfur Is No Match for Potassium

April
2017
Fossil fuels contain sulfur compounds that poison catalytic converters and form polluting sulfur oxides when combusted. With strict environmental regulations in many countries limiting the sulfur content in transportation fuels, refiners must remove most of the sulfur impurities from petroleum fractions prior to their use as fuel.

Stretchy Sensor Detects Touch and Gesture

April
2017
Engineers at the Univ. of British Columbia have developed a transparent, stretchy sensor that could one day be draped over skin or surfaces such as windows, countertops, and steering wheels to either receive instructions or provide feedback to an appliance. Another application for the new material — a floor sensor that indicates the position of inhabitants.

Steel Gets a Modern Makeover

April
2017
Steel is a common benchmark material for strength. Many newly developed materials boast strength rivaling that of steel. Although strong, steel has weaknesses, in particular, it is susceptible to fatigue failure. Instead of pushing steel aside for a newer model, researchers have identified a way to improve steel’s performance by adding a bit of new to the old.

Flower Power: Electronic Rose Doubles as a Supercapacitor

April
2017
What appears to be an ordinary cut rose is in fact the first-ever fully functional electronic plant. Researchers from Linköping Univ. in Sweden pumped a self-organizing conducting polymer into the natural vasculature of the rose to create a flower that could theoretically act as a power source for sensors, switches, and other applications.

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