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Sodium–Sulfur Batteries
In article number 2106572, Hongchang Hao, David Mitlin, and co‐workers report a remarkable new molybdenum‐carbide‐based electrocatalyst for sodium–sulfur batteries. In the cover, the astronauts have discovered the molybdenum carbide crystal, being the central object in the image. Around the carbide swirl polysulfides that are adsorbed on its surface, like meteors being drawn...
This is the first report of molybdenum carbide‐based electrocatalyst for sulfur‐based sodium‐metal batteries. MoC/Mo2C is in situ grown on nitrogen‐doped carbon nanotubes in parallel with formation of extensive nanoporosity. Sulfur impregnation (50 wt% S) results in unique triphasic architecture termed molybdenum carbide–porous carbon nanotubes host (MoC/Mo2C@PCNT–S). Quasi‐solid‐state phase transformation...
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