Fig. 1: Wood-inspired metamaterial catalyst.
From: Wood-inspired metamaterial catalyst for robust and high-throughput water purification
a Natural Douglas fir. b Cross-sectional scanning electron microscopy (SEM) morphology of Douglas fir (R, radial direction; T, tangential direction). c Enlarged SEM images showing the staggered arrangement of different apertures. d Schematic of the staggered pore distribution pattern with large pores, d1, and small pores, d2. e 3D and front view of the traditional periodic microlattice with uniform pores (D0). f Schematic of microlattice overlap process for forming bimodal pores inspired by the wood’s microstructure. g 3D and front view of the wood-inspired aperiodic microlattice. Overlapping units feature interlaced bimodal pores (large pore, D1, small pore, D2), similar to the staggered pores of Douglas fir. h Schematic of electrochemical deposition process for the 3D-printed SS-based metamaterial in Co ion solution. i Synthetic Co/SS-based metamaterial catalyst after 3D printing and electrochemical deposition process. j Schematic of the wood-inspired metamaterial catalysis system with superior mechanical robustness, high-throughput flow, and high-efficiency catalysis for water purification.
