Rapid Solid‐State Gas Sensing Realized via Fast K+ Transport Kinetics in Earth Abundant Rock‐Silicates
Mohamad Khoshkalam,
Yousef Alizad Farzin,
Benjamin Heckscher Sjølin
et al.
Abstract:Here we report on the discovery of a novel fast potassium super stoichiometric silicate, with fully earth‐abundant nominal chemical composition of K2+xMg1−x/2SiO4, which exhibits near superionic K+ conductivity, up to 5 × 10−5 S cm−1 at room temperature. Fast K+ conduction is attributed to a high Continuous Symmetry Measure value in K‐polyhedrons, coupled with a low packing ratio of Corner‐Sharing‐framework. This is the first time that such a high conductivity is measured by a rock‐silicate formed only by abun… Show more
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