Facile fabrication of a flexible electrode by electrodeposition of palladium on silver nanowires for ethanol oxidation

Sun, Jing; Li, Yonghuan; Liu, Yang; Zhou, Wenhui; Zhen, Xue; Lang, Ming-Fei

doi:10.1016/j.ijhydene.2019.01.138

Cited by 15 publications

(13 citation statements)

References 53 publications

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“…When the electrode is bent or twisted at different angles for testing, the current density remains relatively stable, making it well suited for harsh environmental conditions. [ 185 ] In addition to Ag nanowires, the same approach can be applied to other metal nanowires and catalytic reactions. Yang et al used flexible Ti filaments as the substrate and loaded with graphene‐modified titanium dioxide nanotube arrays as catalyst carriers.…”

Section: Self‐supporting Carriersmentioning

confidence: 99%

Review and Development of Anode Electrocatalyst Carriers for Direct Methanol Fuel Cell

Chen

Sun

et al. 2022

Energy Tech

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Direct methanol fuel cell (DMFC) can be used as a promising portable power device due to its excellent energy conversion efficiency and low pollutant emissions. The performance of DMFC largely depends on the anode electrocatalyst for methanol oxidation reaction (MOR). As an important part of the electrocatalyst, the carrier greatly affects the activity and stability of the electrocatalyst. Herein, the research progress of carbonaceous carriers (such as activated carbon, nanostructured carbon), noncarbonaceous carriers (metal compounds), and conducting polymers in DMFC is reviewed. Furthermore, an overview of the development of self‐supporting carriers for flexible DMFC electronics is presented. Its role as the most ideal DMFC carrier in the future provides new ideas for the challenges and development of the commercialization of flexible DMFC.

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Section: Self‐supporting Carriersmentioning

confidence: 99%

Review and Development of Anode Electrocatalyst Carriers for Direct Methanol Fuel Cell

Chen

Sun

et al. 2022

Energy Tech

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“…Moreover, polydimethylsiloxane (PDMS), a widely used flexible substrate in electrochemistry, has been applied in ethanol oxidation recently. Ag nanowires with electro-deposited Pd were drop-casted on the PDMS substrate to achieve the Pd/Ag/PDMS flexible electrodes [25]. The schematic diagram for the preparation process is shown in Figure 8a.…”

Section: Non-carbon-based Supportsmentioning

confidence: 99%

“…The well-controlled microstructures of Pt-and Pd-based catalysts contribute to large specific areas and abundant active sites, which are beneficial for the catalytic process [21,22]. Novel synthetic routes have been developed to fabricate various catalysts with core-shell structures [23], nanowires [24,25], nanoplates [26], nanoparticles [27], and micropores [28]. Another important way to improve the catalytic performance of DEFCs is to strengthen the contact or interaction between catalysts and supports which can further enhance the electron and mass transfer [29].…”

Section: Introductionmentioning

confidence: 99%

Advanced Catalytic Materials for Ethanol Oxidation in Direct Ethanol Fuel Cells

et al. 2020

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Direct ethanol fuel cells (DEFCs) have emerged as promising and advanced power systems that can considerably reduce fossil fuel dependence, and thus have attracted worldwide attention. DEFCs have many apparent merits over the analogous devices fed with hydrogen or methanol. As the key constituents, the catalysts for both cathodes and anodes usually face some problems (such as high cost, low conversion efficiency, and inferior durability) that hinder the commercialization of DEFCs. This review mainly focuses on the most recent advances in nanostructured catalysts for anode materials in DEFCS. First, we summarize the effective strategies used to achieve highly active Pt- and Pd-based catalysts for ethanol electro-oxidation, including composition control, microstructure design, and the optimization of support materials. Second, a few non-precious catalysts based on transition metals (such as Fe, Co, and Ni) are introduced. Finally, we outline the concerns and future development of anode catalysts for DEFCs. This review provides a comprehensive understanding of anode catalysts for ethanol oxidation in DEFCs.

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“…A three-electrode electrochemical cell was used to perform the electrochemical measurements . The prepared Pd NWA electrode was employed as the working electrode.…”

Section: Experimental Sectionmentioning

confidence: 99%

Effect of Metal Substrate on Electrocatalytic Property of Palladium Nanowire Array for High Performance Ethanol Electro-Oxidation

Liu

Adams

et al. 2019

Langmuir

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In this research, a high performance, ionomer-free electrocatalyst based on vertically aligned palladium (Pd) nanowire array was developed as an anode electrode toward ethanol oxidation reaction (EOR) in an alkaline environment. Using a one-step electrodeposition method, the Pd nanowires with controlled length were obtained by varying the electrodeposition current density and the synthesis time. Scanning electron microcopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray powder diffraction (XRD) were employed to characterize the morphology, chemical composition, and crystal structure of the Pd nanowires. The length effects of the nanowires, in the range of 0.8–4.5 μm, and various metal substrates, such as Ag, Cu, Ni, and Ti, were investigated for their electrochemical activities. The results demonstrated that Ag was the most active substrate to facilitate the ethanol oxidation reaction of the Pd nanowire array (NWA) electrocatalyst, which could be related to its good electrical conductivity. The stability test of the Pd NWA/Ag over time for EOR was also carried out, and the catalytic activity was recovered after the electrode was replaced with a new ethanol solution. Electrochemical impedance spectroscopy (EIS) measurements were performed to provide insights in the electron transfer resistance between the electrode and analyte. Gas chromatography and UV–vis spectroscopy were employed to measure the concentration of chemical species, which helped elucidate the overall reaction mechanism on the electrode surfaces.

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Facile fabrication of a flexible electrode by electrodeposition of palladium on silver nanowires for ethanol oxidation

Cited by 15 publications

References 53 publications

Review and Development of Anode Electrocatalyst Carriers for Direct Methanol Fuel Cell

Review and Development of Anode Electrocatalyst Carriers for Direct Methanol Fuel Cell

Advanced Catalytic Materials for Ethanol Oxidation in Direct Ethanol Fuel Cells

Effect of Metal Substrate on Electrocatalytic Property of Palladium Nanowire Array for High Performance Ethanol Electro-Oxidation

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