Effect of thermal treatment of Pd decorated Fe/C nanocatalysts on their catalytic performance for formic acid oxidation

Abstract

The thermal treatment of bimetallic nanocatalysts plays an important role in determining their catalytic performance.

Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cells – Part I – Fundamentals and Pd Based Catalysts

“…It might also get hydroxylated to mediate favorably the electron transfer of formic acid oxidation. Therefore, the enhancement of FAO on PdÀ Fe/C treated samples could be contributed to the synergistic effect in terms of both the Pd 0 [191] (Reproduced with permission from reference 191, Royal Chemical Society, 2014) surface active sites and removal of intermediate CO ads species by Pd oxidized species. [191] Jin et al used carbon nanotubes to support bimetallic PdÀ Fe catalysts.…”

“…Therefore, the enhancement of FAO on PdÀ Fe/C treated samples could be contributed to the synergistic effect in terms of both the Pd 0 [191] (Reproduced with permission from reference 191, Royal Chemical Society, 2014) surface active sites and removal of intermediate CO ads species by Pd oxidized species. [191] Jin et al used carbon nanotubes to support bimetallic PdÀ Fe catalysts. They got the 57 mA/cm 2 current density with 86 m negative shift in the peak potential.…”

“…It might also get hydroxylated to mediate favorably the electron transfer of formic acid oxidation. Therefore, the enhancement of FAO on Pd−Fe/C treated samples could be contributed to the synergistic effect in terms of both the Pd 0 surface active sites and removal of intermediate CO ads species by Pd oxidized species [191] …”

“…Figure 7. (A) CV of the PdFe catalysts with different Pd Fe ratio (a) 1 : 5 (b) 1 : 10 (c) 1 : 15 in N 2 saturated 0.1 M HClO4 + 0.5 HCOOH with a scan rate of 50 mVs À 1( B) Chronoamperometry curve for Pd and PdFe (c)1 : 15 and 1 : 15 heat treated at 300 °C) N 2 -saturated 0.1 M HClO 4 + 0.5 M HCOOH solution at a given potential of 0.1 V vs. SCE[191] (Reproduced with permission from reference 191, Royal Chemical Society, 2014)…”

NIR-enhanced multi-mode catalytic activity over Pd nanocrystals sandwiched within magnetic polydopamine hollow spheres

“…During the past decade, various methods such as controlling high temperature conditions, inert gas protection, long reaction time and complex reaction steps have been developed to synthesize high-quality Pd nanocrystals for improving their catalytic activity. [5][6][7][8][9][10] It was found that the catalytic performance of Pd nanocrystals could be modulated by varying the experimental strategies. 11,12 However, the high surface energy of Pd nanocrystals often led them to be easily aggregated, resulting in low stability and irregular morphology, which limited their practical application.…”