Electrodeposition of nickel‑copper on titanium nitride for methanol electrooxidation

Mao, Ying-Hsiao; Chen, Chia-Yu; Fu, Ji-Xuan; Lai, Ting-Yu; Lu, Fu-Hsing; Tsai, Yu-Chen

doi:10.1016/j.surfcoat.2018.03.048

Cited by 41 publications

(7 citation statements)

References 28 publications

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“…Our results highlight the importance of the local surface characteristics on the overall properties of the coating. Because of the various applications of Ni-Cu alloys, e.g., superhydrophobic coatings [63], supercapacitors [64], or methanol electrooxidation [65], these results could yield some important observations for other groups.…”

Section: Discussionmentioning

confidence: 91%

Influence of the Applied External Magnetic Field on the Deposition of Ni–Cu Alloys

Skibińska,

Elsharkawy,

Kołczyk-Siedlecka

et al. 2024

Metals

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Ni–Cu alloys are suitable candidates as catalysts in hydrogen evolution reaction. Because of the different magnetic properties of Ni and Cu, the influence of an applied external magnetic field on the synthesis Ni–Cu alloys was studied. The coatings were prepared with visible changes in their appearance. The differences between the observed regions were studied in terms of morphology and chemical composition. In addition, the overall chemical and phase compositions were determined using X-ray fluorescence and X-ray diffraction methods, respectively. The catalytic activity was measured in 1 M NaOH using linear sweep voltammetry. The contact angle was determined using contour analysis. All samples were hydrophilic. Hydrogen evolution started at different times depending on the area on the surface. It started earliest on the coating obtained in parallel to the electrode magnetic field at 250 mT. We found that when the Lorenz force is maximal, Cu deposition is preferred because of the enhancement of mass transport.

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Section: Discussionmentioning

confidence: 91%

Influence of the Applied External Magnetic Field on the Deposition of Ni–Cu Alloys

Skibińska,

Elsharkawy,

Kołczyk-Siedlecka

et al. 2024

Metals

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“…75 The activities of the materials under examination can also be detected using the onset potentials ( E onset ). 76 The E onset of NiCu, NiCu/GO, NiCu/rGO is 377 mV, −279 mV and −509 mV, respectively. In comparison to all samples, the electrocatalytic activity and onset potential data show that NiCu/rGO is a more potent catalyst for the methanol ECO.…”

Section: Resultsmentioning

confidence: 96%

Fabrication and characterization of NiCu/GO and NiCu/rGO nanocomposites for fuel cell application

Mohamed,

Shaban,

Kordy

et al. 2024

RSC Adv.

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“…Among alternative power sources, fuel cells are devices capable of generating electricity directly from the electrochemical reaction taking place inside them. As fuel, a variety of compounds can be used, from fossil fuels to hydrogen or simple organic molecules, such as methanol [ 1 , 2 , 3 , 4 ], ethanol [ 1 , 4 , 5 , 6 ] or urea [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Plasma Electrolytic Oxidation of Titanium in Ni and Cu Hydroxide Suspensions towards Preparation of Electrocatalysts for Urea Oxidation

et al. 2023

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The increasing climate crisis requires an improvement in renewable energy technologies. One of them are fuel cells, devices that are capable of generating electricity directly from the chemical reaction that is taking place inside of them. Despite the advantages of these solutions, a lack of the appropriate materials is holding them back from commercialization. This research shows preliminary results from a simple way to prepare black TiO2 coatings, doped with Cu or Ni using the plasma electrolytic oxidation process, which can be used as anodes in urea-fueled fuel cells. They show activity toward urea oxidation, with a maximum current density of 130 μA cm−2 (@1 V vs. Hg|HgO) observed for Cu-enhanced TiO2 and low potential of only 0.742 V (Vs Hg|HgO) required for 50 μA cm−2 for Ni-enhanced TiO2. These results demonstrate how the PEO process can be used for the preparation of TiO2-based doped materials with electrocatalytic properties toward urea electrooxidation.

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Electrodeposition of nickel‑copper on titanium nitride for methanol electrooxidation

Cited by 41 publications

References 28 publications

Influence of the Applied External Magnetic Field on the Deposition of Ni–Cu Alloys

Influence of the Applied External Magnetic Field on the Deposition of Ni–Cu Alloys

Fabrication and characterization of NiCu/GO and NiCu/rGO nanocomposites for fuel cell application

Plasma Electrolytic Oxidation of Titanium in Ni and Cu Hydroxide Suspensions towards Preparation of Electrocatalysts for Urea Oxidation

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