Nanoparticles of Pt/HxMoO3 electrodeposited in poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) as the electrocatalyst for methanol oxidation

Kuo, Chung‐Wen; Sivakumar, Chinnaiah; Wen, Ten‐Chin

doi:10.1016/j.jpowsour.2008.07.060

Cited by 40 publications

(12 citation statements)

References 39 publications

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“…The Pt core-level spectra of E-Pt (Pt particles were deposited onto the stainless steel electrode), PICA-Pt, P(ICA4-co-EDOT1)-Pt, P(ICA3-co-EDOT2)-Pt, and P(ICA2-co-EDOT3)-Pt are shown in Figure 4b. The intensive Pt4f binding energy peaks appeared at 71.3 and 74.7 eV are metallic Pt [29]. The depositions of Pt particle on PICA, P(ICA4-co-EDOT1), P(ICA3-co-EDOT2), and P(ICA2-co-EDOT3) films influence the N1s orbital of polymers and Pt4f orbital of Pt, this could change the Pt4f energy level for the PICA-Pt, P(ICA4-co-EDOT1)-Pt, P(ICA3-co-EDOT2)-Pt, and P(ICA2-co-EDOT3)-Pt electrodes.…”

Section: Electrochemical Polymerization and Characterizationsmentioning

confidence: 98%

Copolymers Based on Indole-6-Carboxylic Acid and 3,4-Ethylenedioxythiophene as Platinum Catalyst Support for Methanol Oxidation

Kuo

Chen

et al. 2015

Catalysts

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Indole-6-carboxylic acid (ICA) and 3,4-ethylenedioxythiophene (EDOT) are copolymerized electrochemically on a stainless steel (SS) electrode to obtain poly(indole-6-carboxylic acid-co-3,4-ethylenedioxythiophene)s (P(ICA-co-EDOT))s. The morphology of P(ICA-co-EDOT)s is checked using scanning electron microscopy (SEM), and the SEM images reveal that these films are composed of highly porous fibers when the feed molar ratio of ICA/EDOT is greater than 3/2. Platinum particles can be electrochemically deposited into the P(ICA-co-EDOT)s and PICA films to obtain P(ICA-co-EDOT)s-Pt and PICA-Pt composite electrodes, respectively. These composite electrodes are further characterized using X-ray photoelectron spectroscopy (XPS), SEM, X-ray diffraction analysis (XRD), and cyclic voltammetry (CV). The SEM result indicates that Pt particles disperse more uniformly into the highly porous P(ICA3-co-EDOT2) fibers (feed molar ratio of ICA/EDOT = 3/2). The P(ICA3-co-EDOT2)-Pt nanocomposite electrode exhibited excellent catalytic activity for the electrooxidation of methanol in these electrodes, which reveals that P(ICA3-co-EDOT2)-Pt nanocomposite electrodes are more promising for application in an electrocatalyst as a support material. OPEN ACCESSCatalysts 2015, 5 1658

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Section: Electrochemical Polymerization and Characterizationsmentioning

confidence: 98%

Copolymers Based on Indole-6-Carboxylic Acid and 3,4-Ethylenedioxythiophene as Platinum Catalyst Support for Methanol Oxidation

Kuo

Chen

et al. 2015

Catalysts

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“…85,91,95,109,[120][121][122] Therefore, a variety of doping acids have been studied to determine their specific roles in this respect, such as PSS, naphthalene sulfonic acid (NSA), para toluene sulfonic acid (PTSA), trifluoromethanol sulfonic acid (TFMSA), etc. [153][154][155][156][157] It is well-known that p-CPs exhibit conductive behavior only in their doped forms and a proper selection of dopant can lead to desired tuning of their conductivity. Traditional dopants, like chloride, sulfate, nitrate, etc., have been replaced by polymeric acid dopants in order to fulfill a second vital function, i.e., providing steric and electrostatic stabilizing to the catalyst particles by preventing their aggregate formation and facilitating the formation of homogeneously dispersed smaller Pt particles.…”

Section: P-conjugated Polymers In Dmfcs 29mentioning

confidence: 99%

Synthesis, Preparation, and Performance of Blends and Composites of π-Conjugated Polymers and their Copolymers in DMFCs

2015

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p-conjugated aromatic polymers (p-CPs) are a class of high performance materials used in fabrication of a number of devices. Their use in direct methanol fuel cells (DMFCs) has resulted in improving the performance of this prospective alternative energy harnessing device. This review focuses on these aspects of p-CPs, from fabrication techniques to structure-property relationships and finally performance evaluation and comparison with other potential candidates. Along with an overview of the step-by-step progress that has been made in the last two decades, this review consists of a separate section dedicated to the advancements made in the last five years. This period has seen considerable progress in terms of preparation techniques, such as fabrication of layer-by-layer assembly and core-shell assembly; materials used, such as variety of dopants for p-CPs and sulfonated polymers in case of PEMs and p-CP composites with carbon nanotubes and graphenes in case of catalyst supporting matrices; and surface morphology, such as use of nanofibers, nanotubes, and nanowires. In addition, different polymerization strategies and solubility aspects of p-CPs have also been discussed. All these modifications have resulted in yielding high power and current densities, mass specific activity, stability, durability, and judicious utilization of costly materials, like Pt and Nafion.

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“…The use of ultrasounds in the electropolymerisation of conducting polymers on various substrates and the preparation of sonogel-based electrochemical sensors has been also reported [86][87][88][89][90][91][92]. Recently, a great deal of interest has been also devoted to the in situ preparation of Pt nanoparticles [93][94][95][96][97][98]. In this case, the in situ preparation of Pt nanoparticles has been achieved via electrochemical methods, and in particular potentiostatic deposition at a fixed potential value which is sufficiently negative to assure reduction of the appropriate precursors to metallic states.…”

Section: Pedot-metal-nanoparticles Composite-modified Electrodesmentioning

confidence: 99%

New Developments in Electrochemical Sensors Based on Poly(3,4-ethylenedioxythiophene)-Modified Electrodes

Lupu

2011

International Journal of Electrochemistry

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There is a growing demand for continuous, fast, selective, and sensitive monitoring of key analytes and parameters in the control of diseases and health monitoring, foods quality and safety, and quality of the environment. Sensors based on electrochemical transducers represent very promising tools in this context. Conducting polymers (CPs) have drawn considerable interest in recent years because of their potential applications in different fields such as in sensors, electrochemical displays, and in catalysis. Among the organic conducting polymers, poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have attracted particular interest due to their high stability and high conductivity. This paper summarizes mainly the recent developments in the use of PEDOTbased composite materials in electrochemical sensors.

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Nanoparticles of Pt/HxMoO3 electrodeposited in poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) as the electrocatalyst for methanol oxidation

Cited by 40 publications

References 39 publications

Copolymers Based on Indole-6-Carboxylic Acid and 3,4-Ethylenedioxythiophene as Platinum Catalyst Support for Methanol Oxidation

Copolymers Based on Indole-6-Carboxylic Acid and 3,4-Ethylenedioxythiophene as Platinum Catalyst Support for Methanol Oxidation

Synthesis, Preparation, and Performance of Blends and Composites of π-Conjugated Polymers and their Copolymers in DMFCs

New Developments in Electrochemical Sensors Based on Poly(3,4-ethylenedioxythiophene)-Modified Electrodes

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