Results 1 to 10 of about 1,729,965 (236)

Competing covalent and ionic bonding in Ge-Sb-Te phase change materials. [PDF]

open access: goldSci Rep, 2016
Ge2Sb2Te5 and related phase change materials are highly unusual in that they can be readily transformed between amorphous and crystalline states using very fast melt, quench, anneal cycles, although the resulting states are extremely long lived at ...
Mukhopadhyay S   +4 more
europepmc   +5 more sources

Advantage of semi-ionic bonding in fluorine-doped carbon materials for the oxygen evolution reaction in alkaline media. [PDF]

open access: yesRSC Adv, 2018
Metal-free carbonaceous catalysts have potential applications for oxygen evolution reaction (OER) devices because of their low-cost and abundant supply. We report that fluorine-doped carbon black is an active catalyst for OER. Fluorine-doped carbon black
Kim J, Zhou R, Murakoshi K, Yasuda S.
europepmc   +2 more sources

Moderated ionic bonding for water-free recyclable polyelectrolyte complex materials. [PDF]

open access: yesSci Adv
While nature extensively uses electrostatic bonding between oppositely charged polymers to assemble and stabilize materials, harnessing these interactions in synthetic systems has been challenging.
van Lange SGM   +5 more
europepmc   +2 more sources

Ionic bonding

open access: yesDefinitions, 2007
Ions forming stable electron configurations 1. When atoms form ions by losing or gaining electrons, they do so to produce a full outer shell giving the atom a stable electron configuration.
Ionic Bonding, Ionic Bonding
openaire   +2 more sources

Ionic-Covalent Bonding in Crystals [PDF]

open access: bronzeNature, 1961
GOODMAN'S comments on our recent article1 in no way affect our views on the subject of ionic-covalent bonding as outlined there. Since it is obvious, however, that Goodman is misinterpreting these views, we should like to stress once again the following points:
C. H. L. Goodman
openalex   +3 more sources

Ground state of two unlike charged colloids: An analogy with ionic bonding [PDF]

open access: green, 2000
In this letter, we study the ground state of two spherical macroions of identical radius, but asymmetric bare charge (QA > QB). Electroneutrality of the system is ensured by the presence of the surrounding divalent counterions.
R Messina, C Holm, K Kremer
openalex   +3 more sources

Directional Ionic Bonds

open access: yesJournal of the American Chemical Society, 2023
Covalent and ionic bonds represent two fundamental forms of bonding between atoms. In contrast to bonds with significant covalent character, ionic bonds are of limited use for the spatial structuring of matter because of the lack of directionality of the electric field around simple ions. We describe a predictable directional orientation of ionic bonds
Hutskalov, Illia   +2 more
openaire   +3 more sources

Dense Hydrogen-Bonding Network Boosts Ionic Conductive Hydrogels with Extremely High Toughness, Rapid Self-Recovery, and Autonomous Adhesion for Human-Motion Detection

open access: yesResearch, 2021
The construction of ionic conductive hydrogels with high transparency, excellent mechanical robustness, high toughness, and rapid self-recovery is highly desired yet challenging.
Bing Zhang   +6 more
semanticscholar   +1 more source

Relativistic-dft study of the electronic structure, bonding and energetic of the [ref8]־ and [uf8]2- ions [PDF]

open access: yes, 2013
Indexación: ScieloABSTRACT In this study we evaluated the importance of the relativistic effects (scalar and spin-orbit) on the description of the electronic structure, bonding and the energetic of the [ReF8]- and [UF8]2- ions.
Rabanal-León, Walter A.
core   +4 more sources

Interfacial chemical bonding-mediated ionic resistive switching. [PDF]

open access: yes, 2017
In this paper, we present a unique resistive switching (RS) mechanism study of Pt/TiO2/Pt cell, one of the most widely studied RS system, by focusing on the role of interfacial bonding at the active TiO2-Pt interface, as opposed to a physico-chemical ...
Han, Jin-Woo   +6 more
core   +1 more source

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