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Water Molecules Need Additional Energy Before They Turn into Ice


Water Molecules Need Additional Energy Before They Turn into Ice
Written by AZoMMay 28 2021
When water comes into contact with a cold surface, it freezes and changes into ice a fact that is already well known.
The study results of Anton Tamtögl et al. lead to a completely new understanding of ice formation: Water molecules require additional energy before they freeze into ice. Image Credit: © Lunghammer - Graz University of Technology.
However, the actual process and its minute details have remained vague, until now.
The first step in ice formation is called ‘nucleation’ and happens in an incredibly short length of time, a fraction of a billionth of a second, when highly mobile individual water molecules ‘find each other’ and coalesce. ....

United Kingdom , Anton Tamt , University Of Cambridge , Nature Communications , Cavendish Laboratory In Cambridge , University Of Surrey , Institute Of Experimental Physics , Graz University Of Technology , Experimental Physics , Graz University , Turn Previous Understanding , Ice Formation Upside , Helium Spin Echo , Cavendish Laboratory , Materials Science , ஒன்றுபட்டது கிஂக்டம் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , இயற்கை தகவல்தொடர்புகள் , கேவன்டிஷ் ஆய்வகம் இல் கேம்பிரிட்ஜ் , பல்கலைக்கழகம் ஆஃப் சர்ரே , நிறுவனம் ஆஃப் சோதனை இயற்பியல் , க்ர்யாஸ் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , சோதனை இயற்பியல் , க்ர்யாஸ் பல்கலைக்கழகம் , கேவன்டிஷ் ஆய்வகம் , பொருட்கள் அறிவியல் ,

International Research Team Discovers that it Takes some Heat to form Ice on Graphene


International Research Team Discovers that it Takes some Heat to form Ice on Graphene
Written by AZoNanoMay 27 2021
A new study from the University of Surrey, in collaboration with the University of Cambridge and Graz University of Technology (Austria), reveals that energy is needed for water to proceed through the first step of ice formation on graphene.
Image Credit: University of Surrey
In a paper published in
Nature Communications, the research team details the complex physical processes at work to understand the chemistry of ice formation. The molecular-level perspective of this process may help in predicting the formation and melting of ice, from individual crystals to glaciers and ice sheets. The latter being crucial to quantify environmental transformation in connection with climate change and global warming ....

United Kingdom , Andrew Jardine , Anton Tamt , Marco Sacchi , University Of Cambridge , Nature Communications , University Of Surrey , Graz University Of Technology Austria , Royal Society University Research , Graz University Of Technology , Cambridge Atom Scattering Centre , Graz University , Helium Spin Echo , Royal Society University Research Fellow , Experimental Physics , Bill Allison , Atom Scattering Centre , ஒன்றுபட்டது கிஂக்டம் , ஆண்ட்ரூ ஜார்டின் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , இயற்கை தகவல்தொடர்புகள் , பல்கலைக்கழகம் ஆஃப் சர்ரே , க்ர்யாஸ் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் ஆஸ்ட்ரியா , அரச சமூகம் பல்கலைக்கழகம் ஆராய்ச்சி , க்ர்யாஸ் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , க்ர்யாஸ் பல்கலைக்கழகம் ,

It takes some heat to form ice!


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IMAGE: The study results of Anton Tamtögl et al lead to a completely new understanding of ice formation: Water molecules require additional energy before they freeze into ice.
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Credit: © Lunghammer - TU Graz
Water freezes and turns to ice when brought in contact with a cold surface - a well-known fact. However, the exact process and its microscopic details remained elusive up to know. Anton Tamtögl from the Institute of Experimental Physics at TU Graz explains: The first step in ice formation is called nucleation and happens in an incredibly short length of time, a fraction of a billionth of a second, when highly mobile individual water molecules find each other and coalesce. Conventional microscopes are far too slow to follow the motion of water molecules and so it is impossible to use them to watch how molecules combine on top of solid surfaces. ....

United Kingdom , Anton Tamt , Nature Communications , Cavendish Laboratory In Cambridge , Institute Of Experimental Physics , Experimental Physics , Helium Spin Echo , Cavendish Laboratory , Advanced Materials Science , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Temperature Dependent Phenomena , Research Development , Molecular Physics , ஒன்றுபட்டது கிஂக்டம் , இயற்கை தகவல்தொடர்புகள் , கேவன்டிஷ் ஆய்வகம் இல் கேம்பிரிட்ஜ் , நிறுவனம் ஆஃப் சோதனை இயற்பியல் , சோதனை இயற்பியல் , கேவன்டிஷ் ஆய்வகம் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் ,