Development of PdP nano electrocatalysts for oxygen reduction reaction

Rego, Rosa; Ferraria, Ana Maria; Rego, A.M. Botelho do; Oliveira, M.C.

doi:10.1016/j.electacta.2012.08.107

Cited by 44 publications

(40 citation statements)

References 36 publications

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“…Pictures 1b-e are similar to those previously described in previous works for Pd and PdP15 catalysts, also prepared by electroless deposition [24,25]; the cauliflower-like appearance of the PdP10 and PdP15 catalysts, especially that of PdP10t1, being typical of amorphous materials such as in the case of NiP and NiCuP [30]. In any case, the STEM mapping images of the PdP specimens, see for example Fig.…”

Section: Structural Characterizationmentioning

confidence: 66%

“…5a and b. PdP15t3 spectra reported before are also included for comparison purposes [24]. The fitting parameters such as the absolute binding energies, full width at half maximum and spin-orbit splits are similar in both samples.…”

Section: Structural Characterizationmentioning

confidence: 99%

“…Although no Pd was practically detected on the carbon paper by energy dispersive X-ray (EDX) microanalyses after immersion in PdCl 2 , this sensitization step was found to improve further Pd and PdP depositions. The electroless deposition was performed in the same solution as that of PdP15 [24] except for changing the concentration of sodium hypophosphite to the half, from 10 to 5 mM. The different specimens studied are listed in Table 1, identifying with the symbols t1-t3 the different electroless deposition times applied for the PdP10 cathodes, which led to different catalyst loadings.…”

Section: Experiments In the Three-electrode Cellmentioning

confidence: 99%

“…The preparation procedure of the Pd and PdP cathodes was performed by the electroless deposition technique reported elsewhere [24,25]. In short, the carbon paper was activated by consecutive immersion in 1.0 g L À1 SnCl 2 and in 0.1 g L À1 PdCl 2 , both prepared in 0.20 M HCl.…”

Section: Experiments In the Three-electrode Cellmentioning

confidence: 99%

“…For example, the addition of Se, P and B improved the ORR activity of the Pd catalyst [22,23]. In our previous study we found that the carbon-supported PdP electrocatalyst containing 15 at.% P (PdP15) exhibited good activity for the ORR in acidic medium [24], thus justifying further effort to obtain more insight about the effect of such a non-metallic element.…”

Section: Introductionmentioning

confidence: 98%

See 4 more Smart Citations

Synthesis and testing of new carbon-supported PdP catalysts for oxygen reduction reaction in polymer electrolyte fuel cells

Salomé

Oliveira

Ferraria

et al. 2015

Journal of Electroanalytical Chemistry

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Section: Structural Characterizationmentioning

confidence: 66%

Section: Structural Characterizationmentioning

confidence: 99%

Section: Experiments In the Three-electrode Cellmentioning

confidence: 99%

Section: Experiments In the Three-electrode Cellmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 3 more Smart Citations

Synthesis and testing of new carbon-supported PdP catalysts for oxygen reduction reaction in polymer electrolyte fuel cells

Salomé

Oliveira

Ferraria

et al. 2015

Journal of Electroanalytical Chemistry

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Structurally Disordered Pd−P Nanoparticles as Effective Catalysts for the Production of Hydrogen Peroxide by the Anthraquinone Method

et al. 2021

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The properties of the catalyst based on structurally disordered PdÀ P nanoparticles supported on a carbon support (PdÀ P/C) in the preparation of hydrogen peroxide by the anthraquinone method have been studied. It is shown that a high yield of H 2 O 2 is observed upon sequential hydrogenation of 2000 mol of eAQ (mol Pd) À 1 . The H 2 O 2 yield reaches 96 %-97 %. PdÀ P nanoparticles are more active in the hydrogenation of 2-ethyl-9,10anthraquinone than Pd 6 P crystalline phosphide. In terms of H 2 O 2 yield, PdÀ P/C catalysts are superior to known catalysts: Pd/ C, Pd/Al 2 O 3 . Based on the data of X-ray powder diffraction, X-ray photoelectron spectroscopy, Inductively Coupled Plasma and thermogravimetry, the main reasons for the deactivation of PdÀ P/C catalysts have been established. Crystallization of the structurally disordered PdÀ P nanoparticles, poisoning by eAQ conversion products and leaching of the active component are considered to be possible reasons of the PdÀ P/C catalyst deactivation.

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Progress on the development of uniform distributed Pd electroless based catalysts on MEA for PEMFC application

Salomé

Rego

Querejeta

et al. 2014

J Solid State Electrochem

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Development of PdP nano electrocatalysts for oxygen reduction reaction

Cited by 44 publications

References 36 publications

Synthesis and testing of new carbon-supported PdP catalysts for oxygen reduction reaction in polymer electrolyte fuel cells

Synthesis and testing of new carbon-supported PdP catalysts for oxygen reduction reaction in polymer electrolyte fuel cells

Structurally Disordered Pd−P Nanoparticles as Effective Catalysts for the Production of Hydrogen Peroxide by the Anthraquinone Method

Progress on the development of uniform distributed Pd electroless based catalysts on MEA for PEMFC application

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