Porous Metal Nanocrystal Catalysts: Can Crystalline Porosity Enable Catalytic Selectivity?

Two-dimensional mesoporous metals: a new era for designing functional electrocatalysts

“…[37][38][39][40][41] On the other hand, mesoporous metals provide a remarkable nanoconnement environment that enriches the reaction intermediates within mesopores and optimizes their (electro)catalytic selectivity. [42][43][44][45][46][47][48][49] However, the longer mesochannels of three-dimensional (3D) mesoporous metal nanoparticles remarkably decelerate the transport of reactants/products and competitively result in a huge wastage of metal sites in (electro)catalysis.…”

Highly active bimetallic phosphide electrocatalysts for hydrogen evolution

“…The hydrogen evolution performance is verified by the corrosion resistance of carbon layers and the synergistic effects of multi-components. 38 A bimetallic phosphide electrocatalyst is prepared by an ordinary method in this work, which can provide significant guidance to synthesize non-noble metal-based electrocatalyst materials.…”

Assembly of Alloyed PdM (Ag, Cu, and Sn) Nanosheets and Their Electrocatalytic Oxidation of Ethanol and Methanol

“…Among the known numerous nanostructured materials, two-dimensional (2D) ultrathin nanosheet catalysts can provide a high mass activity due to their large specific surface area and unique electronic structure, showing the most desirable mass activity in the presence of unloaded catalysts. − However, the monometallic Pd tends to adsorb CO* onto its surface, which severely affects the electrocatalytic activity . To overcome these limitations, an effective approach is to alloy Pd with other metals, which helps to modulate the electronic structure of Pd and provide OH ads to boost the oxidation of absorbed CO* into CO 2 . − When another element is introduced, a downward shift of the d -band center of Pd may cause a change in the electronic structure. − Moreover, the incorporation of the second element induces a ligand effect, which further affects the efficient electron transfer between different atoms in the alloys, thus significantly improving the electrocatalytic performance. − Therefore, the synergistic effect of structural advantages and ligand effects makes the construction of a 2D Pd-based nanostructure more advantageous for fuel cell reactions with desirable electrochemical properties. ,− …”