Phys.org August 19, 2022 The first-order phase transition between two tetrahedral networks of different density has received strong support from a growing body of work in recent years. An international team of researchers (UK, Italy) showed that this liquid–liquid phase transition in tetrahedral networks can be described as a transition between an unentangled, low-density liquid and an entangled, high-density liquid, the latter containing an ensemble of topologically complex motifs. They first revealed this distinction in a rationally designed colloidal analogue of water. They showed that this colloidal water model displays the well-known water thermodynamic anomalies as well as a liquid–liquid […]
Tag Archives: Water properties
Unexpected energy storage capability where water meets metal surfaces
Science Daily January 19, 2022 Strong interaction of metal with water molecules leads to water chemisorption and accumulation of ions in the Helmholtz layer beyond expectation, resulting in a higher interface charge storage ability. An international team of researchers (Germany, Israel, France) extracted new physico-chemical information on the capacitance and structure of the electrical double-layer of platinum and gold nanoparticles at the molecular level, employing single nanoparticle electrochemistry. The charge storage ability of the solid/liquid interface is larger by one order-of-magnitude than predicted by the traditional mean-field models of the double-layer. Using molecular dynamics simulations, they investigated the possible relationship […]
In a Totally Unexpected Finding, Water Has Spontaneously Produced Hydrogen Peroxide
Science Alert September 1, 2019 According to the researchers at Stanford University the spontaneous production of hydrogen peroxide can occur when water is atomised into microdroplets without any chemical reagent, catalyst, applied electric potential, or radiation. Hydrogen peroxide production yield was inversely proportional to microdroplet size. The discovery could lead to new and more environmentally sustainable ways of manufacturing this common chemical and innovative opportunities including green and inexpensive production of hydrogen peroxide, green chemical synthesis, safe cleaning, and food processing…read more. TECHNICAL ARTICLE