A novel method to produce a hierarchical porous carbon as a conductive support of PtRu particles. Effect on CO and methanol electrooxidation

Formic Acid Oxidation over Hierarchical Porous Carbon Containing PtPd Catalysts

“…Recently, our group has described the synthesis of mesoporous carbon with hierarchical porous structure (see scheme 1) [6]. The first step involves the synthesis of SiO 2 NP by TEOS hydrolysis in basic media [18].…”

“…The SiO 2 pattern was then removed by treating the samples with fluorhydric acid solution (step "C"). Note that the way denoted as A→B`→C` produce a macroporous carbon, without additional porosity in the mesoscale level [6].…”

“…Two possible approaches for the mass transport improvement can be considered: short diffusion lengths in thin films, like reported previously for mesoporous metal films, or thicker materials with special pore design for improved diffusion [5,6].…”

“…On the other hand, the use of new synthetic routes allows the surface area to stay high enough, and improves the mass transport by the ad-hoc pore design in hierarchical levels. However, the monolithic nature of the porous support imposes new challenges for metal loading, and the well-known method for metal impregnation should be revised and modified [2,6].…”

Nitrogen-doped porous carbons from bipyridine-based metal-organic frameworks: Electrocatalysis for oxygen reduction reaction and Pt-catalyst support for methanol electrooxidation

“…To the best of our knowledge, there is no report on the preparation of NPCs from MOF precursor containing pyridine-based ligands, which may be helpful to enhance the functionality of nitrogen in porous carbons for ORR. In addition, porous carbons can also serve as catalyst support for various catalytic reactions such as methanol electrooxidation [31] by use of its porosity. Methanol oxidation reaction (MOR) is the anodic reaction of direct methanol fuel cell.…”