Credit score: David Bujdos
A trio of engineers from Saint Vincent Faculty and the College of Pittsburgh has developed two distinctive methods to mould bread-derived carbon electrodes into desired shapes. Of their research published within the journal Royal Society Open ScienceDavid Bujdos, Zachary Kuzel and Adam Wooden improved on prior efforts geared toward making carbon electrodes out of stale bread.
4 years in the past, Wooden revealed a paper describing a method that used stale bread to create carbon electrodes. This was doable due to the excessive carbon content material of bread. He said that the goal was to discover a new technique to create electrodes that might produce much less environmental waste. He additionally famous that bread is among the most wasted meals merchandise on the planet.
On this new research, he and his colleagues have improved that method to create electrodes in desired shapes. Wooden and his group used the ensuing electrodes in a desalinating system. The underlying method entails heating the bread to 800°C in an oxygen-free oven. They added new steps to the method to permit for the electrodes to be made in desired shapes. In each research, the researchers used Pepperidge Farm whole-wheat bread.
Credit score: David Bujdos
The primary new method concerned the usage of a 3D-printed mould to stamp the bread into no matter form was desired. Of their check, the analysis group used a zigzag mould. After the mould was made, the bread was heated.
The second method concerned mixing the bread with water and placing it right into a blender. After eradicating the soggy breadit was shaped right into a desired form with the outcome positioned within the oven and heated.
Credit score: David Bujdos
The researchers recommend the primary technique permits for exact shapes, whereas the second tends to provide sturdier electrodes.
The group plans to proceed their work, hoping to refine their course of and develop a technique to mass produce “green” electrodes. Their final objective is to develop a low-cost capacitive desalination system that could possibly be used to carry fresh water to folks the world over.
Extra info:
David Bujdos et al, Two new doping-free manufacturing processes for bread-derived carbon electrodes with management over micro- and macro-topological floor options, Royal Society Open Science (2025). Two: 10.1098/RSOS.240953
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