Synergistic effect of bimetallic Pd–Pt nanocrystals for highly efficient methanol oxidation electrocatalysts

Pramadewandaru, Respati K.; Lee, Young Wook; Hong, Jong Wook

doi:10.1039/d3ra04837c

Cited by 10 publications

(2 citation statements)

References 57 publications

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“…As previously stated, this change in binding energy is due to the alloy formation and influenced by the chemical environment. 51 Additionally, the electrical interaction between Pd and Pt may enhance the nanocomposites' catalytic activity and durability.…”

Section: Resultsmentioning

confidence: 99%

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation

Saini,

Agarwal,

Awasthi

2024

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation

Saini,

Agarwal,

Awasthi

2024

Mater. Adv.

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“…Numerous Pt-based alloys have been proposed as highly efficient MOR catalysts [6,[9][10][11][12]. Pt-based solid solution alloys with foreign elements doped into a Pt lattice provide sufficient compositional and electronic tuning possibilities.…”

Section: Introductionmentioning

confidence: 99%

Platinum Alloys for Methanol Oxidation Electrocatalysis: Reaction Mechanism and Rational Design of Catalysts with Exceptional Activity and Stability

Yu,

Zhang,

Deng

et al. 2024

Catalysts

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Direct methanol fuel cells have emerged as highly promising energy conversion devices in the past few decades. However, some challenges, such as carbon monoxide (CO) poisoning and unsatisfactory long-term stability, remain for platinum (Pt) as a methanol oxidation reaction (MOR) catalyst. This review covers recent advances in Pt alloy MOR catalysts and provides some insights. This review presents MOR catalytic mechanisms based on CO or non-CO pathways. Typical dimension-based designs of MOR catalysts, such as anisotropic nanowires, metallene, nanoframes, and corresponding rationales for performance enhancements, are introduced. More importantly, some key tuning strategies are elaborated, including intermetallic compound synthesis, interface engineering, and surface facet engineering. High-entropy alloys as an intriguing class of MOR catalysts with favorable prospects are also discussed. Finally, future directions and opportunities are outlined.

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Effect of Sodium Terephthalate on the Electrocatalytic Performance of Active Self‐Supporting Nanoporous PdAg Catalysts

Wang,

Si,

Duan

et al. 2024

Adv Eng Mater

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Direct‐methanol fuel cells (DMFCs) have become a hot research topic in the energy field due to their excellent energy conversion efficiency and environmental sustainability. Optimization of catalyst preparation strategy is the key to enhance the performance of DMFC. In this study, melt quenching is employed to synthesize Al–Pd–Ag precursor alloy ribbons, and self‐supported nanoporous Pd–Ag catalysts with high activity are successfully prepared by a precisely controlled dealloying process. The catalysts are characterized microstructurally and tested electrochemically, and their performance is compared with samples without sodium terephthalate addition and with commercial Pt/C and Pd/C catalysts. In the results, it is shown that the maximum peak current density of methanol electrocatalytic oxidation is significantly enhanced to 1451.16 mA mg−1 with the addition of 15 mM sodium terephthalate, which is about 6.6 times higher than that of the unadded samples, and the catalytic performance is improved by a factor of 7.7 and 12.0, respectively, compared to those of commercial Pt/C and Pd/C. This remarkable performance enhancement is attributed to the innovative dealloying method, which not only refines the catalyst structure but also achieves a significant increase in catalytic performance through the assistance of active self‐supporting nanoporous structures and interfacial synergistic effects between palladium and silver.

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Synergistic effect of bimetallic Pd–Pt nanocrystals for highly efficient methanol oxidation electrocatalysts

Abstract: Nanocubes (Pd–Pt alloy, Pd@Pt core–shell, Pd, and Pt) were employed as electrocatalysts for methanol oxidation reaction to explore the correlation between atomic distribution within electrocatalysts and their catalytic activity.

Cited by 10 publications

References 57 publications

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation

Platinum Alloys for Methanol Oxidation Electrocatalysis: Reaction Mechanism and Rational Design of Catalysts with Exceptional Activity and Stability

Effect of Sodium Terephthalate on the Electrocatalytic Performance of Active Self‐Supporting Nanoporous PdAg Catalysts

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Synergistic effect of bimetallic Pd–Pt nanocrystals for highly efficient methanol oxidation electrocatalysts

Abstract: Nanocubes (Pd–Pt alloy, Pd@Pt core–shell, Pd, and Pt) were employed as electrocatalysts for methanol oxidation reaction to explore the correlation between atomic distribution within electrocatalysts and their catalytic activity.

Cited by 10 publications

References 57 publications

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H2 separation

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H2 separation

Platinum Alloys for Methanol Oxidation Electrocatalysis: Reaction Mechanism and Rational Design of Catalysts with Exceptional Activity and Stability

Effect of Sodium Terephthalate on the Electrocatalytic Performance of Active Self‐Supporting Nanoporous PdAg Catalysts

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Product

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About

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation

Bimetallic PdPt alloy nanoparticle-decorated track-etched polyethylene terephthalate membranes for efficient H₂ separation