Fig. 2: Highly thermally conductive composite HEM. | Nature Communications

Fig. 2: Highly thermally conductive composite HEM.

From: Promoting in-situ stability of hydroxide exchange membranes by thermally conductive network for durable water electrolysis

Fig. 2

a Schematic diagram of HEMWE in which the BN composite HEM with a 3D thermally conductive network is applied. Composite HEM exhibits fast heat diffusion, thereby potentially reducing the localized temperature and promoting the in-situ stability of HEM in a water electrolyzer. b Design of BN composited HEM, where phonon and hydroxide transport along the 3D network. c, d Side-view SEM image of the QCS/3.8%BN and QCS/10.6%BN membranes, respectively. The structure of QCS/BN membranes is indicated in insets. e Thermal conductivity of QCS/BN membranes with different BN volume fractions. Inset: Photo of pure QCS and QCS/10.6%BN. Data in (e) are presented as mean values  ±  standard deviation based on at least three trials. f Infrared photos of membranes with a square region cooling from 60 °C to 10 °C.

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