14-electron reduced MoIV6-ε-Keggin polyoxometalates: highly stable and reversible electron/Li⁺ sponge materials

Abstract

14e-reduced hollow MoIV6-ε-Keggin POMs exhibit highly enhanced electrical conductivity and maintain their structural integrity during 24e-redox processes compared to fully oxidized POMs.

Bismuth Telluride Supported Sub-1 nm Polyoxometalate Cluster for High-Efficiency Thermoelectric Energy Conversion

“…21,22 In this regard, the POM clusters offer several advantages, including compositional/structural stability and structural diversity at atomic levels. 31,32 Thereby, we introduce the 0 D subnanometer-scale POM clusters as an effective second phase which may improve electrical transport due to their size-dependent electronic structure and scattering mechanism. Density functional theory (DFT) calculations indicate strong interactions between the Bi 0.4 Sb 1.6 Te 3 matrix and the POM clusters.…”

“…As the only commercialized near-room-temperature material, Bi 2 Te 3 -based TE materials have attracted extensive interest in both academia and industry for their prominent application. , However, the temperature-dependent thermal performance of Bi 2 Te 3 is hampered by the negative bipolar diffusion effect, which is caused by the small band gap, leading to a rapid deterioration in its thermoelectric efficiency. , To address this issue, it is crucial to restrain thermal properties while enhancing electrical transport simultaneously. , In this regard, the POM clusters offer several advantages, including compositional/structural stability and structural diversity at atomic levels. , Thereby, we introduce the 0 D subnanometer-scale POM clusters as an effective second phase which may improve electrical transport due to their size-dependent electronic structure and scattering mechanism. Density functional theory (DFT) calculations indicate strong interactions between the Bi 0.4 Sb 1.6 Te 3 matrix and the POM clusters.…”