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Scientists have made a remarkable discovery at the bottom of the ocean!


 

Scientists have made a remarkable discovery at the bottom of the ocean that could revolutionize our understanding of deep-sea environments and battery technology.


 Manganese nodules, found on the abyssal plains of the Clarion-Clipperton Zone (CCZ), between Hawaii and Mexico, are known to contain essential metals used in batteries. However, researchers now suspect these nodules may function as natural batteries themselves.


Deep-sea ecologist Andrew Sweetman, from the Scottish Association for Marine Science, began investigating this after observing an unexpected rise in oxygen levels in the CCZ in 2012—an anomaly, given that oxygen production typically requires photosynthesis, which depends on sunlight. 


Yet, the deep CCZ is completely dark, so Sweetman’s findings suggested the presence of an oxygen-producing mechanism that did not rely on light. Over time, Sweetman and his team found more evidence that the nodules might be producing "dark oxygen" through an unknown electrochemical process.


Collaborating with chemist Franz Geiger from Northwestern University, Sweetman explored the hypothesis that these polymetallic nodules might be functioning like small, deep-sea geobatteries. Geiger's research showed that metal layers could generate small amounts of electricity when exposed to saltwater.


 Testing this theory, they discovered that individual nodules could generate voltages up to 0.95 volts—close to the 1.23 volts required for seawater electrolysis, a process that splits water molecules into oxygen and hydrogen.The nodules' complex internal structures, formed over millions of years, resemble the gradients found in modern batteries. 


While Sweetman and Geiger’s findings are groundbreaking, there are still many unanswered questions, such as why some nodules are more electrochemically active than others and why oxygen levels sometimes plateau. 


Despite these uncertainties, the discovery opens up new possibilities for understanding the deep ocean and its potential role in energy storage and even life on other planets.


This research, published in Nature Geoscience, has garnered significant attention from scientists and the public, sparking both excitement and controversy. Further studies are needed to fully unravel the mechanisms behind these mysterious deep-sea nodules and their potential applications.


#DarrenOrf #manganese #nodule #battery

#Geiger #Sweetman #Laboratories #NorthwesternUniversity

#ScienceEnerg

y #popularmechanics

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