Category Chemistry/Nanotechnology

Under Pressure, ‘Squishy’ Compound reacts in remarkable ways

As a compound of manganese sulfide is compressed in a diamond anvil cell, it undergoes dramatic transitions. In this illustration, the interaction between the manganese (Mn) atomic ions (purple circles) and disulfur (S2) molecular ions (figure 8s) increases from left to right until the overlap is significant enough to make the system metallic. (Illustration courtesy of Dean Smith, Argonne National Lab)

Remarkable things happen when a “squishy” compound of manganese and sulfide (MnS2) is compressed in a diamond anvil, say researchers from the University of Rochester and the University of Nevada, Las Vegas (UNLV).

“This is a new type of charge transfer mechanism, and so from a science community point of view this is very, very exciting...

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Scientists seek better understanding of Earth’s Atmospheric Chemistry by studying Mars

Understanding ozone on Mars
Understanding ozone on Mars

Long-term studies of ozone and water vapor in the atmosphere of Mars could lead to better understanding of atmospheric chemistry for the Earth. A new analysis of data from ESA’s Mars Express mission has revealed that our knowledge of the way these atmospheric gases interact with each other is incomplete.

Using four martian years of observations from the SPICAM (Spectroscopy for the Investigation of the Characteristics of the Atmosphere of Mars) instrument, which corresponds to seven and a half Earth years, a team of researchers from Europe and Russia uncovered the gap in our knowledge when trying to reproduce their data with a global climate model of Mars.

Ozone and water vapor do not make good atmospheric companions...

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Scientists Create the World’s Toughest Self-Healing Material

Scientists Create the World’s Toughest Self-Healing Material

Scientists have been working for decades to develop materials that can heal themselves, and they have had some success, too. For example, American Chemical Society researchers were able to develop small, swimming robots that can magnetically heal themselves, while researchers from the National University of Singapore took a different approach by making a smart foam material that allows robot hands to self-repair and sense objects.

However, one issue with these projects is that they are soft and opaque and not very suitable for rugged applications. So the researchers at IISER, along with those at the Indian Institute of Technology (IIT), Kharagpur decided to focus on developing something that is harder than conventional self-healing material, as reported by The Telegraph India.

T...

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Tamarind Shells Converted into an Energy Source for Vehicles

A representation of the experimental process, as well as photographs of the
tamarind shell at every step

A team of scientists has found a way to process tamarind shells which are rich in carbon, converting the waste material into carbon nanosheets, which are a key component of supercapacitors – energy storage devices that are used in automobiles, buses, electric vehicles, trains, and elevators.

Shells of tamarind, a tropical fruit consumed worldwide, are discarded during food production. As they are bulky, tamarind shells take up a considerable amount of space in landfills where they are disposed as agricultural waste.

The study reflects NTU’s commitment to address humanity’s grand challenges on sustainability as part of its 2025 strategic plan, which seeks to accelerate the trans...

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