Fig. 3: Geometrical structures of Co-SCRs.
From: Metal 3D printing technology for functional integration of catalytic system

(a) Co-SCR-1; (b) longitudinal section of Co-SCR-1; (c) cross-section of Co-SCR-1; (d) cross-section of Co-SCR-2; (e) cross-section of Co-SCR-3; (f) cross-section of Co-SCR-4; (g) cross-section of Co-SCR; (h) cross-section of Co-SCR-5; (i) cross-section of Co-SCR-6.