Synthesis of poly (2-Methoxyaniline)/sodium dodecyl sulfate film including bimetallic Pt–Cu nanoparticles and its application for formic acid oxidation

Hosseini, Sayed Reza; Hosseinzadeh, Rahman; Ghasemi, Shahram; Farzaneh, Nahid

doi:10.1016/j.ijhydene.2014.12.021

Cited by 16 publications

(6 citation statements)

References 60 publications

(31 reference statements)

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“…It is clear that catalysts on PVA/GO was demonstrated to have the highest electrocatalytic activity among the catalysts on GO. The constructive effect of Pd on the catalytic activity could be due to the lesser consequence of the Pt binding site density on the bimetallic xPtyPd catalyst 58–60 . Thus, CO poisoning is also reduced relative to the Pt/PVA/GO and Pt/GO surfaces.…”

Section: Resultsmentioning

confidence: 99%

Polyvinyl alcohol‐modified graphene oxide as a support for bimetallic Pt–Pd electrocatalysts to enhance the efficiency of formic acid oxidation

Saipanya

Themsirimongkon

et al. 2022

Polymers for Advanced Techs

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The aim of this research was to study the efficiency of polyvinyl alcohol (PVA)modified graphene oxide (GO) as a supporting material for catalysts that oxidize formic acid. The active metal catalysts (e.g., Pt and Pd) were electrodeposited on PVA/GO surfaces. The morphologies of the prepared catalysts were characterized by scanning electron microscopy and transmission electron microscopy, while their chemical compositions were identified by X-ray diffraction and X-ray photoelectron spectroscopy. The results show that compared with the other catalysts on GO, the prepared active PtPd alloy catalyst nanoparticles with 11.49-20.73 nm sizes were well dispersed on the PVA/GO surfaces. Electrochemical results indicate that the activities of the catalysts with PVA provided a higher current density than that of the catalysts without PVA. The bimetallic 3Pt3Pd/PVA/GO catalyst showed the greatest catalytic activity, stability, and CO oxidation when compared to those of other catalysts. The electronic, morphological, and structural properties promote the masscharge transfer through the interaction. These results indicate that the PVA-modified GO provides a suitable site for active bimetallic catalyst surfaces, resulting in excellent formic acid oxidation and high CO elimination. The 3Pt3Pd/PVA/GO electrocatalyst is promising for enhancing formic acid oxidation.

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Section: Resultsmentioning

confidence: 99%

Polyvinyl alcohol‐modified graphene oxide as a support for bimetallic Pt–Pd electrocatalysts to enhance the efficiency of formic acid oxidation

Saipanya

Themsirimongkon

et al. 2022

Polymers for Advanced Techs

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“…Pt −Cu/P2MA‐SDS/CPE could reduce the poisoning of Pt caused by the formed poisoning intermediates during formic acid activation. The possible synergistic effect between Pt −Cu NPs and P2MA‐SDS, introduction of Cu into Pt due to changed electronic ligand effect, and surface crystalline orientation of Pt particles are the factors contributing to the enhanced catalytic activity [113] . In another research, Ge et al.…”

Section: Pt‐based Anodes For Faomentioning

confidence: 98%

“…The possible synergistic effect between Pt À Cu NPs and P2MA-SDS, introduction of Cu into Pt due to changed electronic ligand effect, and surface crystalline orientation of Pt particles are the factors contributing to the enhanced catalytic activity. [113] In another research, Ge et al prepared a nanoporous PtCu catalyst with Pt-rich shell and PtÀ Cu core by dealloying bulk PtÀ Cu (55 : 45) through a potential-controlled method. The Pt-rich skin and PtÀ Cu core nanoporous catalyst shows excellent activity for FAO.…”

Section: Coppermentioning

confidence: 99%

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

Hossain

Alwi

Saleem

et al. 2022

The Chemical Record

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Platinum-based catalysts have a long history of application in formic acid oxidation (FAO). The single metal Pt is active in FAO but expensive, scarce, and rapidly deactivates. Understanding the mechanism of FAO over Pt important for the rational design of catalysts. Pt nanomaterials rapidly deactivate because of the CO poisoning of Pt active sites via the dehydration pathway. Alloying with another transition metal improves the performance of Ptbased catalysts through bifunctional, ensemble, and steric effects. Supporting Pt catalysts on a high-surface-area support material is another technique to improve their overall catalytic activity. This review summarizes recent findings on the mechanism of FAO over Pt and Pt-based alloy catalysts. It also summarizes and analyzes binary and ternary Pt-based catalysts to understand their catalytic activity and structure relationship.

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“…The biodegradability and low cost of formic acid makes it a valuable resource in energy storage, in spite of its toxicity [114][115][116][117]. Thus, metallic and bimetallic nanoparticles Pt [118], Pt-Cu [119], Pt-Au [120,121], Pd-Ag [122], and so on are used as catalysts in the electro-oxidation of formic acid.…”

Section: Nanomechanics 144mentioning

confidence: 99%

Green Synthesis of Metallic and Carbon Nanostructures

Hurtado¹,

Calderón‐Ayala²,

Cortez-Valadez³

et al. 2017

Nanomechanics

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The technological and biomedical applications of low toxicity and eco-friendly organic compounds are nowadays increasingly attracting the attention of researchers in nanoscience, who are aiming for more biocompatible and nanostructured systems for their application in antineoplastic therapies. This study presents the significance of "green components" in the production of graphene, metallic, and semiconductor nanoparticles, due to their antioxidant and antitumor properties. The formation of nanostructures is caused during green synthesis methods by organic molecules or carboxylic acid groups present in some plant extracts; for this reason, we include here a recapitulation and analysis of the role of carboxylic acids in those systems (organic). Furthermore, we propose the use of the extract from Opuntia ficus-indica cladodes to obtain metallic and carbon nanostructures, as an alternative biosynthesis method for the development of future nanobiotechnological applications.

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Synthesis of poly (2-Methoxyaniline)/sodium dodecyl sulfate film including bimetallic Pt–Cu nanoparticles and its application for formic acid oxidation

Cited by 16 publications

References 60 publications

Polyvinyl alcohol‐modified graphene oxide as a support for bimetallic Pt–Pd electrocatalysts to enhance the efficiency of formic acid oxidation

Polyvinyl alcohol‐modified graphene oxide as a support for bimetallic Pt–Pd electrocatalysts to enhance the efficiency of formic acid oxidation

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

Green Synthesis of Metallic and Carbon Nanostructures

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