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Materials with low thermal conductivity have received significant attention across various research fields, including thermal insulation materials, thermal barrier coatings, and thermoelectric materials. Exploring novel materials with intrinsically low thermal conductivity and investigating their phonon transport properties, chemical bonding, and atomic coordination are crucial. In this study, a novel...
Asymmetric Bonding
In article number 2304718, Zhengyang Zhou, Xun Shi, and co‐workers present an innovative approach for achieving low thermal conductivity through the incorporation of low‐coordination atoms into transition metal dichalcogenides (TMDCs). The resulting asymmetric bonds formed by these low‐coordination ions induce strong phonon scattering, ultimately resulting in a substantial reduction...
Gold–copper (Au‐Cu) Janus nanostructures (Au‐Cu Janus NSs) are successfully prepared using N‐oleyl‐1,3‐propanediamine as capping agent and Cu(acac)2 as the precursor in a typical seeded growth strategy. By preferably depositing Cu atoms on one side of concave cubic Au seeds, the Cu part gradually grows larger as more Cu precursors are added, making the size tuning feasible in the range of 74–156 nm...
Nickel sulfides with high theoretical capacitance have aroused tremendous attention for next‐generation supercapacitors. Unfortunately, the structural durability of nickel sulfides is insufficient to support the long‐term working situation. Herein, Ni3S4‐x hollow microspheres with sulfur vacancies (Ni3S4‐x HMs) are constructed by a liquid‐phase anion exchange process using the Ni‐MOF as the precursor...
With the popularity of portable and miniaturized electronic devices in people's live, flexible piezoelectric nanogenerators (PENG) have become a research hotspot for harvesting energy from the living environment to power small‐scale electronic equipment and systems because of its stability. For further enhancing output performance of PENG, chemical modification and structural design for piezoelectric...
Inspired by nature, diverse biomimetic hydrogel actuators are fabricated and become one of the most essential components of bionics research. Usually, the anisotropic structure of a hydrogel actuator is generated at the early fabrication process, only a specific shape transformation behavior can be produced under external stimuli, and thus has limited the development of hydrogel actuators toward the...
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