Pt nanowire electrocatalysts for proton exchange membrane fuel cells

Yan, Zeyu; Li, Bing; Yang, Daijun; Ma, Jie

doi:10.1016/s1872-2067(12)60629-9

Cited by 25 publications

(8 citation statements)

References 32 publications

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“…23 The doping of P also created active sites by altering the structure of the electrocatalyst. 37 The LSV curves of Co-N-P-C@Mo 2 TiC 2 at different rotation rates (400−1600 rpm) (Figure 4b) indicate that the limiting diffusion current density is proportional to the rotation rate. Figure 4c,d exhibits an obvious decrease in the E 1/2 values of Co-N-P-C and catalysts due to the dissolution of catalytically active particles and the corrosion of the support after the stability test.…”

Section: ■ Results and Discussionmentioning

confidence: 94%

Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Ren

Chang

Zhang

et al. 2022

ACS Appl. Energy Mater.

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The oxygen reduction reaction (ORR) has been considered as the rate-limiting step in proton-exchange membrane fuel cells. Therefore, noble metals such as Pt are used as catalysts, which restricts cost reduction. Nonprecious metals have attracted much attention as ORR catalysts, but the low catalytic activity and stability are still challenges associated with their use. Transition-metal/nitrogen/carbon (M-N-C) materials are widely used due to their low cost and relatively high activity. Electronic, compositional, and geometric effects offered by the metal–support interaction could enhance the catalytic activity and stability. In this study, MXene (Mo2TiC2), with high corrosion resistance and excellent electrical conductivity, is used as a support for Co-N-P-C to construct the Co-N-P-C@Mo2TiC2 catalyst. The half-wave potential of Co-N-P-C@Mo2TiC2 reaches 0.78 V, and the peak power density based on the catalyst reaches 880 mV cm–2. Co-N-P-C@Mo2TiC2 exhibits excellent stability in both ORR (only 18 mV loss after 10 000 cycles) and single-cell tests.

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Section: ■ Results and Discussionmentioning

confidence: 94%

Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Ren

Chang

Zhang

et al. 2022

ACS Appl. Energy Mater.

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“…4 Hence, the electrospun Pt or Pt-based nanowires have been widely studied to explore their physical and chemical characteristics and possible applications in fuel cells. [5][6][7][8][9][10][11][12][13][14] PEMFC has several distinct advantages and is considered to be the most suitable fuel cell to be used in electrical vehicles. However, the durability and cost of the conventional Pt/C catalysts remain the major blocks hindering the fulfillment of commercialization of fuel cell vehicles.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of platinum nanowires by centrifugal electrospinning method for proton exchange membrane fuel cell

Huang

Chang

2021

Int J Energy Res

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The centrifugal electrospinning method is employed to fabricate platinum (Pt) nanowires and its application for proton exchange membrane fuel cell (PEMFC) is evaluated. The nanowires are produced from a polymer solution containing hexachloroplatinic acid hydrate as Pt precursor and polyvinyl pyrrolidone (PVP). The effects of system parameters on the morphology of Pt nanowires are studied including the PVP concentration, rotation speed of spinneret, and applied electric field. The electrochemically active surface area (ESA) of the Pt nanowires is characterized by cyclic voltammetry tests. The produced Pt nanowires are also used as electrocatalysts in the cathode of PEMFC and the cell performance is tested. Results show the centrifugal electrospinning method can successfully produce Pt nanowires with mean diameter of 54 ± 14 nm and ESA of 5.64m 2 g -1 , which are comparable to those of traditional electrospun Pt nanowires. The production rate of Pt nanowires can be improved greatly in comparison with the conventional electrospinning technique. It is also found that by the accelerated degradation tests, Pt nanowires demonstrate better durability than commercial Pt/C and the employment of Pt nanowires as electrocatalysts mixed with Pt/C can enhance the fuel cell performance. The present results reveal the centrifugal electrospinning method is an efficient approach to fabricate Pt nanowires for the application in PEMFCs. Novelty statement• A centrifugal electrospinning device was designed to fabricate Pt nanowires successfully with good morphology.• The production rate of Pt nanowires is enhanced greatly in comparison with the conventional electrospinning method.

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“…In 2012, Du provided a review on the preparation of Pt-based nanowires and their applications to electrocatalysis [25]. Yan et al recently published a review on Pt nanowire catalysts [26]. In this work, we extensively review the various synthetic methods of 1D nanostructures made of various metallic components and their corresponding electrocatalytic performances for the fuel cell reactions.…”

Section: Introductionmentioning

confidence: 99%

An Overview of One-Dimensional Metal Nanostructures for Electrocatalysis

Kim

Noh

et al. 2015

Catal Surv Asia

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Nanostructures of metals are of great importance in the area of catalysis due to their distinct physicochemical properties compared to their bulk counterparts. Size and morphology dependent properties of metal nanostructures provide a rational approach toward designing a highly efficient catalytic materials. In particular, onedimensional (1D) metallic nanostructures in the shapes of wires, rods and tubes have recently been studied with great interest due to their potential uses as electrocatalysts for oxidations of fuels and reduction of oxidants in fuel cell applications. Compared to the conventional nanoparticle catalysts that are generally supported on carbon, these 1D materials can offer significant opportunities to improve catalytic performance under fuel cell reaction conditions by their structural characteristics such as preferential exposure of reactive crystal facets, high stability, and facile electron transport. Great advances in the synthesis of electrocatalysts based on the metallic nanowires and nanotubes have been made with enhanced electrocatalytic activity and durability. This review summarizes the research progress made on synthesizing 1D metal electrocatalysts using different synthetic strategies, including template-assisted method, electrospinning, and template-free wet-chemical synthesis, with an emphasis on the electrocatalytic performance of these 1D nanomaterials.

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Pt nanowire electrocatalysts for proton exchange membrane fuel cells

Cited by 25 publications

References 32 publications

Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Fabrication of platinum nanowires by centrifugal electrospinning method for proton exchange membrane fuel cell

An Overview of One-Dimensional Metal Nanostructures for Electrocatalysis

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Pt nanowire electrocatalysts for proton exchange membrane fuel cells

Cited by 25 publications

References 32 publications

Nonprecious Co-N-P-C@Mo2TiC2 Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Nonprecious Co-N-P-C@Mo2TiC2 Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Fabrication of platinum nanowires by centrifugal electrospinning method for proton exchange membrane fuel cell

An Overview of One-Dimensional Metal Nanostructures for Electrocatalysis

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Product

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Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs

Nonprecious Co-N-P-C@Mo₂TiC₂ Catalyst for the High-Performance Oxygen Reduction Reaction in PEMFCs