Conductive metallic Periodic Open Cellular Structures (POCS) are considered a promising solution for the intensification of heat-transfer limited catalytic processes thanks to their enhanced thermal conductivity. Herein, the heat conduction in the solid matrix has been investigated through 3D numerical simulations. The porosity together with the intrinsic conductivity of the material have a major effect on the effective thermal conductivity, while a negligible influence of the cell shape and size is found. A correlation previously derived for the description of open cell foams shows an excellent agreement with the results of POCS structures.

POCS are produced by additive manufacturing, e.g. 3D printing, providing degrees of freedom in the geometry design. Anisotropic cubic cell structures have been investigated for the first time to explore the possibility to promote or decrease preferentially the heat conduction in the radial or the axial direction. At constant solid fraction and cell size, these structures can improve the effective thermal conductivity of the solid matrix up to 40 % and 100 % for structures thickened in two or one direction respectively. This concept paves the way to the design of metamaterials with tailored properties, granting additional degrees of freedom for the intensification of heat-transfer limited catalytic processes.

导电金属周期性开孔结构（POCS）由于其增强的导热性而被认为是加强传热受限催化过程的有前途的解决方案。在此，已经通过3D数值模拟研究了固体基质中的热传导。孔隙率和材料的固有电导率对有效的热导率有很大影响，而对孔的形状和大小的影响可以忽略不计。先前得出的用于描述开孔泡沫的相关性与POCS结构的结果显示出极好的一致性。

POCS通过增材制造（例如3D打印）生产，从而在几何设计中提供了自由度。首次研究了各向异性立方晶胞结构，以探索促进或减少径向或轴向热传导的可能性。在恒定的固体分数和孔尺寸的情况下，对于分别在两个或一个方向上增厚的结构，这些结构可以将固体基质的有效导热率提高多达40％和100％。该概念为具有定制性能的超材料的设计铺平了道路，为强化传热受限的催化过程提供了更多的自由度。