Abstract

The effects of calcination on the crystallinity and grain growth model for microstructure development of wormhole‐like mesoporous tungsten oxide are investigated in this study. We found that residual mesopores of wormhole‐like tungsten oxide can be seen calcined above 500°C, as evidenced by retention of a wormhole‐like mesostructure of tungsten oxide. A model was proposed to combine grain growth with wormhole‐like mesoporous behavior and to investigate whether the formation of wormhole‐like mesoporous tungsten oxide can retard the collapse rate of mesopores during the calcination process.

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