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All‐solid‐state batteries (ASSBs) with alloy anodes are expected to achieve high energy density and safety. However, the stability of alloy anodes is largely impeded by their large volume changes during cycling and poor interfacial stability against solid‐state electrolytes. Here, a mechanically prelithiation aluminum foil (MP‐Al‐H) is used as an anode to construct high‐performance ASSBs with sulfide...
Point defects of heteroatoms and vacancies can activate the inert basal plane of molybdenum sulfide (MoS2) to improve its performance on catalyzing the hydrogen evolution reaction (HER). However, the synergy between heteroatoms and vacancies is still unclear. Here, a chemical vapor deposition‐assisted in situ vanadium (V) doping method is used to synthesize monolayer MoS2 with abundant and tunable...
2D Semiconductors are promising in the development of next‐generation photodetectors. However, the performances of 2D photodetectors are largely limited by their poor light absorption (due to ultrathin thickness) and small detection range (due to large bandgap). To overcome the limitations, a strain‐plasmonic coupled 2D photodetector is designed by mechanically integrating monolayer MoS2 on top of...
The application of magnetic fields in the oxygen reduction/evolution reaction (ORR/OER) testing for electrocatalysts has attracted increasing interest, but it is difficult to characterize on‐site surface reconstruction. Here, a strategy is developed for annealing‐treated FeCo2O4 nanofibers at a magnetic field of 2500 Oe, named FeCo2O4‐M, showing a right‐shifted half‐wave potential of 20 mV for the...
In article number 1906435, Qing Chen and co‐workers obtain high‐index {01} facets of ZnO during wet chemical etching of the (000) O‐terminated surface of ZnO and also provide the direct experimental evidence of the micromasking mechanism for the hillocks formation via an in situ liquid cell transmission electron microscopy study.
Special surface plays a crucial role in nature as well as in industry. Here, the surface morphology evolution of ZnO during wet etching is studied by in situ liquid cell transmission electron microscopy and ex situ wet chemical etching. Many hillocks are observed on the (000) O‐terminated surface of ZnO nano/micro belts during in situ etching. Nanoparticles on the apex of the hillocks are observed...
Yolk–shell structured micro/nano‐sized materials have broad and important applications in different areas due to their unique spatial configurations. In this study, yolk–shell structured Co3O4@Co3O4 is prepared using a simple and scalable hydrothermal reaction, followed by a calcination process. Then, CoxCu1−xCo2O4@CoyCu1−yCo2O4 microspheres are synthesized via adsorption and calcination processes...
The ability to programmatically assemble colloidal micro/nanostructures into highly ordered superstructures is of great importance in both fundamental studies and practical applications. In addition to the sophisticated manipulation of the short‐range and long‐range interactions imposed on the colloidal building blocks, the intrinsic shape elements including face, edge, corner, concave, convex, and...
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