Design of Pd-Pb Catalysts for Glycerol and Ethylene Glycol Electrooxidation in Alkaline Medium

Asset, Tristan; Serov, Alexey; Padilla, Mónica; Roy, Aaron; Matanović, Ivana; Chatenet, Marian; Maillard, Frédéric; Atanassov, Plamen

doi:10.1007/s12678-017-0449-8

Cited by 20 publications

(16 citation statements)

References 56 publications

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“…Different from the model shown in Figure 10a developed by Camara et al., [57] DFT studies [33,115,132,139–141] have shown that glycerol molecules can contact the (111) facet of Pt, Pd, and Au through carbon atom and/or oxygen atom (Figure 10b–d). However, the C‐adsorption pathway is more involved in C−C bond cleavage, as M−CO(ads) is commonly seen in GEOR, and has been widely accepted as the main poisoning species generated from the C‐adsorption pathway for the electrooxidation of methanol, and formic acid.…”

Section: Parallel Pathways Proposed As the Major Reaction Mechanism Omentioning

confidence: 76%

An Overview of Glycerol Electrooxidation Mechanisms on Pt, Pd and Au

2021

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lower pH reduces the amount of carboxylates and favors the CÀ C bond scission. A reaction mechanism is proposed in this review, in which the generation of side products are directly from glycerol ("competition" between each side product) rather than from the further oxidation of C2/C3 products. Additionally, GEOR results and associated interpretations for Ni electrodes are presented, as well as a brief review on the performances of multi-metallic electrocatalysts (most of which are nanocatalysts) as an introduction to these future research hotpots.

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Section: Parallel Pathways Proposed As the Major Reaction Mechanism Omentioning

confidence: 76%

An Overview of Glycerol Electrooxidation Mechanisms on Pt, Pd and Au

2021

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“…Asset et al . [14] synthesized Pd x Pb 1‐x catalysts by the sacrificial support method (SSM). According to the authors, higher activities were obtained by ethylene glycol and glycerol oxidation using the composition Pd 0.77 Pb 0.23 , when compared to Pd/C.…”

Section: Introductionmentioning

confidence: 99%

Borohydride Reduction Method for PdIn/C Electrocatalysts Synthesis towards Glycerol Electrooxidation under Alkaline Condition

et al. 2021

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Pd−In/C electrocatalysts were synthesized by the adapted borohydride reduction method in different atomic ratios. Electrocatalysts were evaluated by conventional electrochemical techniques and direct glycerol fuel cells. X‐ray diffraction profiles indicated the structure of Pd and In (fcc) phases, as well as the presence of In higher oxidation states. Regarding Transmission electron microscopy, it showed the particle‘s average diameters between 6.1–12.7 nm. All PdIn/C electrocatalysts showed high current values for −0.30 V vs. Ag/AgCl, which the best one was PdIn/C 90 : 10. Higher performance for glycerol oxidation was observed in polarization curves at 90 °C for PdIn/C (30 : 70) composition.

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“…[25][26] Besides, the incorporation of Pb into Pd could also offer high resistance to toxic CO-like species by weakening the bond energy of Pd-CO or by enhancing the electrooxidation of CO-like species. [27][28] Along with this strategy, morphology control has also been demonstrated to be an advanced approach for modifying the catalytic properties of Pd nanocrystals, therefore, enhancing the electrocatalytic performances. Up-to-date, significant advances have been achieved in the fabrication of Pd-based nanocrystals with fascinating morphologies.…”

Section: Introductionmentioning

confidence: 99%

Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

Song

Fernandez

et al. 2018

ACS Appl. Mater. Interfaces

145

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The design of nanocatalysts by controlling pore size and particle characteristics is crucial to enhance the selectivity and activity of the catalysts. Thus, we have successfully demonstrated the synthesis of binary PdPb alloy nanocubes (PdPb NCs) by controlling pore size and particle characteristics. In addition, the as-obtained binary PdPb NCs exhibited superior electrocatalytic activity of 4.06 A mg and 16.8 mA cm toward ethylene glycol oxidation reaction and 2.22 A mg and 9.2 mA cm toward glycerol oxidation reaction when compared to the commercial Pd/C. These astonishing characteristics are attributed to the attractive nanocube structures as well as the large number of exposed active areas. Furthermore, the bifunctional effects originated from Pd and Pb interactions help to display high endurance with less activity decay after 500 cycles, showing a great potential in fuel cell applications.

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Design of Pd-Pb Catalysts for Glycerol and Ethylene Glycol Electrooxidation in Alkaline Medium

Cited by 20 publications

References 56 publications

An Overview of Glycerol Electrooxidation Mechanisms on Pt, Pd and Au

An Overview of Glycerol Electrooxidation Mechanisms on Pt, Pd and Au

Borohydride Reduction Method for PdIn/C Electrocatalysts Synthesis towards Glycerol Electrooxidation under Alkaline Condition

Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

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