ElectroCatalytic Activity of Nickel Foam with Co, Mo, and Ni Phosphide Nanostructures

Abstract

In this study, the electrocatalytic activity of nickel foam, which is activated by cobalt, molybdenum, and nickel phosphide nanostructures, is prepared by the plasma hydrothermal method for use in the release of hydrogen and oxygen. The morphology and crystallographic structure of the synthesized phosphide specimens were examined by means of scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction. Moreover, the electrolysis activity for these sets of specimens was investigated using the Tafel polarization curve or linear sweep voltammetry, cyclic voltammetry, as well as by means of the electrochemical impedance spectroscopy technique. Preliminary results show that nickel phosphide presents the highest electrocatalytic activity than the other phosphides developed in this research. In this regard, it presents an electrocatalytic activity to release hydrogen and oxygen of around −1.7 and 0.82 mV, which is measured at a current density of 100 mA·cm−2, respectively.

Unveiling the Changes of Dinickel Phosphide (Ni2P) in Hydrogen Evolution Reaction: Toward a Deeper Mechanistic Understanding

“…No strong peak for Ni 2 P could be confirmed by using FTIR. 44 In the P−H stretching region, a weak band at 2360 cm −1 , along with a shoulder at 2345 cm −1 , was detected (Figure 2a,b; S8a). These are associated with the antisymmetric and symmetric P−H stretching modes of PH 3 , respectively.…”

“…Fourier transform infrared (FTIR) spectroscopy was used to elucidate the chemical structure of Ni 2 P-based catalysts (Figures a,b; S8). No strong peak for Ni 2 P could be confirmed by using FTIR . In the P–H stretching region, a weak band at 2360 cm –1 , along with a shoulder at 2345 cm –1 , was detected (Figure a,b; S8a).…”

Influence of Aluminum and Copper on Mechanical Properties of Biocompatible Ti-Mo Alloys: A Simulation-Based Investigation

“…In Figure 9 b, the presence of Ti-2Cu-9Mo compound was established, which is also a strengthening factor. Previous studies have mentioned the Ti-2Cu-9Mo phase, which can enhance the antibacterial ability of the alloy [ 47 , 48 , 49 , 50 ].…”

Statistical analysis of experimental factors for synthesis of copper oxide and tin oxide for antibacterial applications

“…However, synthesizing these nanoparticles requires careful optimization of experimental factors to achieve desirable properties. Copper oxide and tin oxide nanoparticles have gained attention for their antibacterial properties due to their unique surface chemistry and size-dependent reactivity [6], [7]. Copper oxide nanoparticles exhibit strong antibacterial activity by inducing oxidative stress and damaging the bacterial cell wall and membrane [8].…”