Nanostructured Materials as Catalysts: Nanoporous‐Gold‐Catalyzed Oxidation of Organosilanes with Water

Understanding the synergistic effects of gold bimetallic catalysts

“…We found that Au-Cu showed a strong synergistic effect in the oxidation of benzyl alcohol to benzaldehyde, while Au-Ag did not [26]. On the other hand, in the selective oxidation of silanes to silanols, neither Au-Ag/SiO 2 nor Au-Cu/SiO 2 outperforms monometallic gold/SiO 2 [78,92]. In other words, no positive synergy was found in this reaction.…”

Catalytic activity of nanostructured Au: Scale effects versus bimetallic/bifunctional effects in low-temperature CO oxidation on nanoporous Au

“…Zielasek et al [4] and Xu et al [11] reported that nanoporous gold, prepared by the selective dissolution of Ag from a AuAg alloy, exhibits a remarkably high activity for CO oxidation with molecular oxygen at low temperatures, and recent experiments in our laboratory arrived at comparable conclusions [12–13]. In the meantime, high catalytic activities of NPG catalysts were reported also for other reactions, such as oxidative coupling of methanol [14], aerobic oxidation of alcohols [15], and oxidation of organosilanols [16]. …”

3D Nanoporous Metal Phosphides toward High‐Efficiency Electrochemical Hydrogen Production

“…In particular, the open bicontinuous nanoporosity produced by dealloying offers catalysts extraordinary catalytic activities, high stability, and improved selectivity for various chemical and electrochemical reactions. [1][2][3][4][5][6][7][8] Dealloying, also known as selective leaching, is a microscopic galvanic corrosion process during which less noble components are preferentially dissolved from an alloy while the remained noble metals form a 3D bicontinuous nanoporous structure by self-assembly and selfdiffusion at the alloy/electrolyte interface. [ 9,10 ] By utilizing this approach, a number of nanoporous metals and alloys have been developed for various applications in the past decade.…”