Synthesized PdNi/C and PdNiZr/C catalysts for single cell PEM fuel cell cathode catalysts application

Şahi̇n, Ömer; Akdag, Abdurrahman; Horoz, Sabit; Ekinci, Arzu

doi:10.1016/j.fuel.2023.128391

Cited by 5 publications

(2 citation statements)

References 77 publications

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“…20 Moreover, numerous ternary alloys were also prepared by the chemical reduction method applying NaBH 4 as a reducing agent, such as the Vulcan XC-72R-loaded PdNiZr catalyst. 21 In order to further improve the electrocatalytic activity, numerous studies had been carried out to explore the mixing of nonmetals, such as oxides, hydrides, and borides. 22,23 Especially, the addition of boron greatly improved the activity of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

Wu,

Yan,

et al. 2024

ACS Appl. Energy Mater.

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The Pd−Ni/C catalyst was synthesized under medium strongly acidic media regulated by ammonia solution, using NaBH 4 as a reducing agent and polyvinylpyrrolidone (PVP) as a protector. The TEM, HRTEM, and XRD results exhibited that the Pd−Ni/C catalyst was successfully synthesized and doped with Pd 2 B and NiB. The XPS analysis showed that Pd and Ni mainly existed with an oxidized state in the Pd−Ni/C catalysts, and Pd and Ni also had a strong electronic interaction. Moreover, B and Ni were respectively inserted into the atomic spacing of Pd−Pd, which significantly changed the surface electronic state and atomic spacing of Pd, helping to improve the activity of the Pd−Ni/C catalyst. The electrochemical performance analyzed through cyclic voltammetry, chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) displayed that the Pd−Ni/C catalyst had good activity and CO tolerance for methanol electro-oxidation. Furthermore, the Pd−Ni/C catalyst synthesized at which the ratio between the actual and stoichiometric amounts of NaBH 4 was 25 (Pd−Ni/C-25) showed the optimal ECSA and anodic current density for methanol electro-oxidation, respectively reaching 1602.2 cm 2 mg −1 Pd and 1406.5 mA mg −1 Pd. Moreover, the linear relationship between the methanol oxidation on the Pd−Ni/C-25 catalyst and the square root of the scan rate indicated that the electrokinetics of this electrochemical reaction was a diffusion-controlled process, further implying its excellent electrocatalytic performance. The results of the CA curves showed that the Pd−Ni/C-25 catalyst also had excellent durability because of its good antitoxicity. The EIS results presented that the Pd−Ni/C-25 catalyst had the best charge transfer efficiency among these Pd−Ni/C catalysts. The good activity, CO tolerance, durability, and charge transfer efficiency of the Pd−Ni/C-25 catalyst demonstrated its wide potential application in direct methanol fuel cells.

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Section: Introductionmentioning

confidence: 99%

“…A series of M (Ni, Co, Zn, V, Ag, and Mn)@(Pd/MWCNT) nanocatalysts synthesized by the NaBH 4 reduction technique were also reported . Moreover, numerous ternary alloys were also prepared by the chemical reduction method applying NaBH 4 as a reducing agent, such as the Vulcan XC-72R-loaded PdNiZr catalyst …”

Section: Introductionmentioning

confidence: 99%

Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

Wu,

Yan,

et al. 2024

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

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P-Doped Boosting the Activity of Ni-Mo Nanocatalysts for Efficient Alkaline Water Electrolysis of Hydrogen Evolution

Zhou,

Ju,

Zhang

et al. 2024

Catal Lett

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PEM fuel cell applications of doped (Ni, Zr) metal alloyed Pt/C cathode catalysts

Akdag,

Horoz,

Şahin

et al. 2024

J Appl Electrochem

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Synthesized PdNi/C and PdNiZr/C catalysts for single cell PEM fuel cell cathode catalysts application

Cited by 5 publications

References 77 publications

Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

P-Doped Boosting the Activity of Ni-Mo Nanocatalysts for Efficient Alkaline Water Electrolysis of Hydrogen Evolution

PEM fuel cell applications of doped (Ni, Zr) metal alloyed Pt/C cathode catalysts

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Synthesized PdNi/C and PdNiZr/C catalysts for single cell PEM fuel cell cathode catalysts application

Cited by 5 publications

References 77 publications

Investigation of Pd2B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

Investigation of Pd2B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

P-Doped Boosting the Activity of Ni-Mo Nanocatalysts for Efficient Alkaline Water Electrolysis of Hydrogen Evolution

PEM fuel cell applications of doped (Ni, Zr) metal alloyed Pt/C cathode catalysts

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Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation

Investigation of Pd₂B- and NiB-Doped Pd–Ni/C Electrocatalysts with High Activity for Methanol Oxidation