Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene.

ZrO heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO (m-ZrO) to tetragonal ZrO (t-ZrO). The phase mole ratio of m-ZrO versus t-ZrO in ZrO HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-ZrO is higher than that on t-ZrO.

Design and Tailoring of the 3D Macroporous Hydrous RuO Hierarchical Architectures with a Hard-Template Method for High-Performance Supercapacitors.

In this work, RuO honeycomb networks (RHCs) and hollow spherical structures (RHSs) were rationally designed and synthesized with modified-SiO as a sacrificial template via two hydrothermal approaches. At a high current density of 20 A g, the two hierarchical porous RuO·xHO frameworks showed the specific capacitance as high as 628 and 597 F g; this is about 80% and 75% of the capacitance retention of 0.5 A g for RHCs and RHSs, respectively.