Figure 4

(a and b) FESEM micrographs of the nanoporous gyroid Pt from the PS/Pt gyroid nanohybrids after removal of the PS templates by UV degradation; (c) One-dimensional X-ray diffraction profile of the nanoporous gyroid Pt.
(a and b) FESEM micrographs of the nanoporous gyroid Pt from the PS/Pt gyroid nanohybrids after removal of the PS templates by UV degradation; (c) One-dimensional X-ray diffraction profile of the nanoporous gyroid Pt.