The high performance mushroom-like Pd@SnO2/Ni foam electrode for H2O2 reduction in alkaline media

Sun, Lei; He, Wurigamula; Li, Suriguga; Shi, Lele; Zhang, Yijia; Liu, Jinghai

doi:10.1016/j.jpowsour.2018.05.056

Cited by 21 publications

(7 citation statements)

References 52 publications

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“…Figure gives the SEM images of SnO 2 /NF with different standing time at different magnification, which is from . The dropping rate of alcohol is fixed at 0.022 mL s −1 .…”

Section: Resultsmentioning

confidence: 99%

“…As a semiconductor material, tin dioxide has been widely used inelectrode materials, because of its advantages of high electron mobility, low cost and good chemicalproperties, such as PEM fuel cell and direct ethanol fuel cell . Our recent study also shows that the Pd/SnO 2 /NF electrode had the considerable catalytic activity and stability for H 2 O 2 electroreduction in alkaline electrolyte . In particularly, SnO 2 nanorod arrays grew vertically on the surface of nickel foam and then Pd nanoparticles deposited on top of SnO 2 nanorods forming a 3D‐hierarchical structure which farthest exposed the active sites of noble metal catalyst and enhance mass transfer of the electrolyte.…”

Section: Introductionmentioning

confidence: 82%

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Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell

Sun

et al. 2019

Fuel Cells

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A hierarchical 3D composite cathode (Pd/SnO 2 /NF) was designed and synthesized via electrode positing Pd nanoparticles on the nanoarrays consisting of SnO 2 nanorods grown upright on the surface of Ni foam (NF). The influence of the adding rate of alcohol and the standing time of precursor on the morphology of SnO 2 nanostructures was investigated. The growth mechanism of SnO 2 nanorods was investigated and the influences of the morphology of SnO 2 nanomaterials on the size and electrochemical properties of Pd catalysts were also discussed. The morphology of SnO 2 nanomaterials changes from nanoclusters to nanorods, and both the diameters of the nanorods and Pd nanospheres decrease gradu-ally with decreasing the adding rate of alcohol and prolonging the standing time of precursor. When the adding rate of alcohol is 0.022 mL s -1 and standing precursor for 15 min, the SnO 2 nanorods with a rutile structure are vertically grown on the surface of Ni foam apart, and Pd nanospheres are electrodeposited on the top of SnO 2 nanorods. The formation of hierarchical 3D structure is benefitting for fully exposing the active site of the Pd catalyst and increasing the specific surface area of the electrode, further improving the performance of the Al-H 2 O 2 semi-fuel cell.

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“…Figure gives the SEM images of SnO 2 /NF with different standing time at different magnification, which is from . The dropping rate of alcohol is fixed at 0.022 mL s −1 .…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 82%

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell

Sun

et al. 2019

Fuel Cells

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“…Much activity has been shown in hydrothermal micro and nanostructured coatings on Ni foam. Examples include WS2 flakes [45], Pd-SnO2 nanorods [46], MnO2 nanospheres [47], NiCo2S4 networks [48], Co3O4 nanowires and nanoflowers [49], [50], NiCo2O4 [51] and MoNi4 [52] microflowers, and NiO nanowalls [53] plus hierarchical NiCo2O4 nanowires grown on Ni foam [54]. Enhanced surface area and catalytic activity are achieved but long-term structural stability needs further study.…”

Section: Surface Modification Strategiesmentioning

confidence: 99%

“…Many types of fuel cells with liquid reactants, for instance, ethanol [66], methanol [49], and urea-H2O2 [67] types employ porous electrodes. Higher power devices include direct borohydride fuel cells using Pt-Ti felt and micromesh [60], hydrazine using Pd-Ni foam [22], and H2O2 using Pd-SnO2/Ni foam [46]. Of these, only the borohydride type, and cerium-based redox flow batteries [59], have been studied in terms of electrolyte flow.…”

Section: Recent and Novel Applicationsmentioning

confidence: 99%

Three-dimensional porous metal electrodes: Fabrication, characterisation and use

Arenas

León

Walsh

2019

Current Opinion in Electrochemistry

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Diverse 3D porous metal electrodes, including meshes, foams and felts, are used in electrochemical flow reactors for a wide range of industrial applications, such as energy storage, electrosynthesis and degradation of pollutants. Recent work centres on the hierarchical decoration and coating of 3D electrodes with catalysts, although the study of their performance in a controlled and reproducible flow and mass transfer environment ought to receive more attention. New advances have considered metal nanofelts and nanomesh porous electrodes which show superior productivity. Opportunities are found in additive manufacturing, advanced structural characterization by e.g., X-ray computed tomography, and in 3D modelling of the hydrodynamic characteristics, current distribution and mass transfer coefficient.

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“…Hydrothermal methods are relatively popular, such as the deposition of Pd-SnO2 nanostructures on nickel foam for the reduction of hydrogen peroxide [27]. On the other hand, CuO-NiO nanowires for O2 evolution have been recently produced though plasma discharge on Ni foam [28].…”

Section: Electrode Surfaces Decorated and Coated By Electrocatalystsmentioning

confidence: 99%

Developments in plane parallel flow channel cells

Walsh

Arenas

León

2019

Current Opinion in Electrochemistry

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Plane parallel electrodes are favoured, in laboratory studies and industry for electrosynthesis, environmental treatment and energy conversion. This electrode geometry offers uniform current distribution while a flow channel ensures a controlled reaction environment. Performance can be enhanced by the use of tailored electrode surfaces, porous, 3-D electrodes, and bipolar electrical connections. Scale-up can be achieved by increasing the electrode size, the number of electrodes in a stack or the number of stacks in a system. Recent trends include a) 3-D printing of fast prototype cell components, b) use of porous 3-D electrode supports and their decoration, c) development of microflow cells for electrosynthesis, d) electro-Fenton treatment of wastewater, and e) computational models to simulate and rationalise reaction environment and performance. Future research needs are highlighted.

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The high performance mushroom-like Pd@SnO2/Ni foam electrode for H2O2 reduction in alkaline media

Cited by 21 publications

References 52 publications

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell

Three-dimensional porous metal electrodes: Fabrication, characterisation and use

Developments in plane parallel flow channel cells

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The high performance mushroom-like Pd@SnO2/Ni foam electrode for H2O2 reduction in alkaline media

Cited by 21 publications

References 52 publications

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO2/Ni Foam (NF) as the Cathode for Al‐H2O2 Semi‐Fuel Cell

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO2/Ni Foam (NF) as the Cathode for Al‐H2O2 Semi‐Fuel Cell

Three-dimensional porous metal electrodes: Fabrication, characterisation and use

Developments in plane parallel flow channel cells

Contact Info

Product

Resources

About

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell

Morphology‐Controllable Synthesis and Growth Mechanism of 3D‐Hierarchical Pd/SnO₂/Ni Foam (NF) as the Cathode for Al‐H₂O₂ Semi‐Fuel Cell