Promoting formic acid oxidation performance of Pd nanoparticles via Pt and Ru atom mediated surface engineering

Abstract

Pt atoms attract electrons from neighboring atoms. Ru atoms attract hydroxide ligands. These two characteristics respectively weaken the bonding and recovering of the Pt site from CO oxidation and then facilitate the FAO in ternary PdPtRu NCs.

Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cell‐II‐Platinum‐Based Catalysts

“…According to the theory of ensemble effect, the aggregation of three or more neighbor Pt atoms results in the dehydration pathway with the formation of COads, whereas one isolated Pt atom is active in the dehydrogenation pathway of FAO. [79] In another paper, Zhou [146] . [45] (Reproduced with permission from reference 45, Royal Chemical Society 2020) et al studied the effect of heat treatment of the DÀ Pt3Te/C catalyst at various temperatures.…”

“…Figure 10. High resolution TEM images of the pristine (a) Pd, (b) PdPt and (c) PdRuPt NCs, and (d) Pd, (e) PdPt and (f) PdRuPt NCs after chronoamperometric stability test at 0.5 V for 2000 s. The particle-size distribution histograms of pristine and post chronoamperometric stability test are depicted in insets [146]. [45].…”

Tailor-designed nanowire-structured iron and nickel oxides on platinum catalyst for formic acid electro-oxidation

“…3,4 This is in addition to the utilization of a superior liquid fuel with high safety, low toxicity, low-ammability, ready availability, ambient temperature operability and low fuel crossover ux through Naon membranes. [5][6][7][8][9] The most signicant factors that inuence the nal output of DFAFCs are the electrocatalysts for both the anode and cathode electrodes, where Pt and Pd-based catalysts have been extensively studied due to their outstanding catalytic activity and long-term stability. 7,10 Formic acid (FA) is one of the smallest organic molecules likely to be used, with only two electrons shared.…”

“…3,4 This is in addition to the utilization of a superior liquid fuel with high safety, low toxicity, low-flammability, ready availability, ambient temperature operability and low fuel crossover flux through Nafion membranes. 5–9…”

Experimental and Process Modelling Investigation of the Hydrogen Generation from Formic Acid Decomposition Using a Pd/Zn Catalyst

“…In recent years, heterogeneous catalysts have attracted large interest for formic acid decomposition because of enhanced separability, reusability, and relatively low reaction temperatures (less than 80 • C). The heterogeneous catalysts Pd, Au, or Ag and their alloys have been commonly studied [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. A variety of materials have additionally been investigated as catalyst supports for the dehydrogenation of formic acid, such as activated carbon [22][23][24], zeolites [16,25], amines [26][27][28][29], metal organic frameworks (MOFs) [11,13,30,31], and macroreticular resins [32][33][34].…”