Palladium nanoparticles supported on graphene as an efficient electrocatalyst for hydrogen evolution reaction

Ghasemi, Shahram; Hosseini, Sayed Reza; Nabipour, Shima; Asen, Parvin

doi:10.1016/j.ijhydene.2015.09.114

Cited by 68 publications

(28 citation statements)

References 43 publications

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“…It is worth noting that there is a hydrogen adsorption peak around 0.4 V vs. RHE. The HER in the polarization curves of the Pd contained samples, which agrees well with several previous investigations regarding Pd-based nanomaterials for HER [44,[52][53][54].…”

Section: Her Performancesupporting

confidence: 91%

Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets

Tian

Tang

et al. 2018

Catalysts

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Developing bi-functional electrocatalysts for both oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) is crucial for enhancing the energy transfer efficiency of metal-air batteries and fuel cells, as well as producing hydrogen with a high purity. Herein, a series of Pd-Ru alloyed nanoparticles encapsulated in porous carbon nanosheets (CNs) were synthesized and employed as a bifunctional electrocatalyst for both ORR and HER. The TEM measurements showed that Pd-Ru nanoparticles, with a size of approximately 1-5 nm, were uniformly dispersed on the carbon nanosheets. The crystal and electronic structures of the Pd x Ru 100−x /CNs series were revealed by powder X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The as-prepared samples exhibited effective ORR activity in alkaline media and excellent HER activity in both alkaline and acid solutions. The Pd 50 Ru 50 /CNs sample displayed the best activity and stability among the series, which is comparable and superior to that of commercial 10% Pd/C. For ORR, the Pd 50 Ru 50 /CNs catalyst exhibited an onset potential of 0.903 V vs. RHE (Reversible Hydrogen Electrode) and 11.4% decrease of the current density after 30,000 s of continuous operation in stability test. For HER, the Pd 50 Ru 50 /CNs catalyst displayed an overpotential of 37.3 mV and 45.1 mV at 10 mA cm −2 in 0.1 M KOH and 0.5 M H 2 SO 4 , respectively. The strategy for encapsulating bimetallic alloys within porous carbon materials is promising for fabricating sustainable energy toward electrocatalysts with multiple electrocatalytic activities for energy related applications.

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Section: Her Performancesupporting

confidence: 91%

Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets

Tian

Tang

et al. 2018

Catalysts

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“…Recently, a lot of efforts have been made to focus on the development of carbon and graphene based Pd-nano electrocatalysts [5] using approaches such as surface modification, composition control [6], alloying [7] and spontaneous methods [8] for hydrogen fuel production in PEFCs. In addition, the 'support promotion' method is another approach employed to improve catalyst nanoparticle distribution for hydrogen fuel cell efficiency enhancement [2].…”

Section: Introductionmentioning

confidence: 99%

Zeolite supported Pd electrocatalyst nanoparticle characterization

Yao

2019

International Journal of Hydrogen Energy

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Highlights:• Detail Pd cluster structure by the ex-situ Extended X-ray Adsorption Fine Structure (EXAFS) method.• Evaluate Pd/Y-zeolite nanoparticle size under calcinations and reduction temperature.• Measure Pd nanoparticle electrochemical activity in electrolyte solution.• Discuss electrochemical reaction behaviour with respect to Pd particle size.• Explore Pd particle location and Pd particle migration and electrochemical behaviour. AbstractA laboratory made 1.5 wt% Palladium (Pd) zeolite electrocatalyst is investigated using the Extended X-ray Adsorption Fine Structure (EXAFS) and Cyclic Voltammetry (CV) techniques to reveal Pd structure and resultant electrochemical performance. It was found that the Abstract ID 23 -International Journal of Hydrogen Energy 2 electrochemical activity of hydrogen charger transfer in the hydride region increased for electrocatalyst with large-size particles made at high temperature of 400 o C, compared to those with small-size particles calcined and reduced at temperature below 360 o C, at which no major discrepancies were observed between catalysts of different sizes. Furthermore, Pd particle location has played an important role to enhance electrocatalyst performance. The Pd atom tends to remain at small cages, i.e. zeolite sodalite cages or hexagonal prisms at calcinations and reduction temperatures below 360 o C. When temperature increases to about 400 o C, the majority Pd atoms tend to migrate from zeolite small cages to supercages and zeolite external structures with enhanced electrochemical performance.

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“…[47] Recently, Pd-graphene nanocomposite as an electro-catalyst for HER was investigated by cyclic voltammetry (CV) in H 2 SO 4 solution. [48] Furthermore, electro-deposition of Cu nanoparticles onto the CPE in the absence of CTAB and their electro-catalytic performance towards HER in acidic solutions including SDS, CTAB and TX-100 was reported by our research group. [49] The development of new materials, which can catalyze the HER by reducing the over-potential, is a long-time objective for us.…”

Section: Introductionmentioning

confidence: 94%

“…Also, Wang et al reported the application of TX‐100 as an additive for preparation of polymeric nanofibers by electrospinning method . Recently, Pd‐graphene nanocomposite as an electro‐catalyst for HER was investigated by cyclic voltammetry (CV) in H 2 SO 4 solution . Furthermore, electro‐deposition of Cu nanoparticles onto the CPE in the absence of CTAB and their electro‐catalytic performance towards HER in acidic solutions including SDS, CTAB and TX‐100 was reported by our research group…”

Section: Introductionmentioning

confidence: 97%

Fabrication and Performance Evaluation of Pd‐Cu Nanoparticles for Hydrogen Evolution Reaction

Hosseini

Ghasemi

2019

ChemistrySelect

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Herein, the effects of different types of surfactants including sodium dodecyl sulfate (SDS), cetyltrimethyl ammonium bromide (CTAB), and t‐octyl phenoxy polyethoxy ethanol (Triton X‐100, TX‐100) were presented on the hydrogen evolution reaction (HER) at the surface of carbon paste electrode (CPE) modified with Pd−Cu nanoparticles. Firstly, Cu nanoparticles with average diameters at about 80 nm were electro‐deposited at the CPE surface in H2SO4 solution containing CTAB and CuSO4 by potentiostatic method. Then, Pd−Cu bimetallic nanoparticles with diameters at about 75 nm were prepared through galvanic replacement reaction between PdII ions and Cu particles. The synthesized Cu nanoparticles were covered by CTAB in solution and surface tension of the nanoparticles were decreased, and consequently stabilized. Also, the surfactants play different roles on the HER depending on the electrode polarity and surface charges. The electro‐catalytic activity of the Pd−Cu/CPE and nano‐Cu/CPE towards HER was found to be highest in the presence of SDS. The effects of galvanic replacement reaction and type of surfactants on kinetic parameters of the HER such as cathodic electron transfer coefficient and exchange current density were comparatively investigated.

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Palladium nanoparticles supported on graphene as an efficient electrocatalyst for hydrogen evolution reaction

Cited by 68 publications

References 43 publications

Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets

Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets

Zeolite supported Pd electrocatalyst nanoparticle characterization

Fabrication and Performance Evaluation of Pd‐Cu Nanoparticles for Hydrogen Evolution Reaction

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