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Oxygen reduction reaction (ORR) is the bottleneck of metal‐air batteries and fuel cells. Strain regulation can change the geometry and adjust the surface charge distribution of catalysts, which is a powerful strategy to optimize the ORR activity. The introduction of controlled strain to the material is still difficult to achieve. Herein, we present a temperature‐pressure‐induced strategy to achieve...
Oxygen reduction reaction (ORR) is the bottleneck of metal‐air batteries and fuel cells. Strain regulation can change the geometry and adjust the surface charge distribution of catalysts, which is a powerful strategy to optimize the ORR activity. The introduction of controlled strain to the material is still difficult to achieve. Herein, we present a temperature‐pressure‐induced strategy to achieve...
Based on a narrow-band plate-patch antenna, a novel wideband monopole antenna with low-profile is proposed in this paper. By adding a hollow metal cylinder on the center of the ground plate, an approximately 4∶1 bandwidth can be obtained, where the electrical height of the antenna at the lower edge frequency of the bandwidth is approximately 0.06 wavelength. It also provides good omni-direction radiation...
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