2019年9月15日 · In this work, a novel CoFe-layered double hydroxide (LDH) coupled with NiFe-LDH nanosheet array supported on nickel foam (denoted as CoFe@NiFe/NF) is developed through a facile hydrothermal and electrodeposition method.

2020年4月1日 · XRD was used to confirm the phase purity of the synthesized electrodes. Fig. 4 (a) shows the XRD pattern of Ni foam coated with CoFe-LDH electrode prepared at 12 h (CoFe-12). The 2θ peaks observed at 45.55°0.52.90° and 77.35° were attributed to the Ni foam substrate, and are denoted as ‘∆’.

2023年3月1日 · Using a range of characterization techniques including Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS), this work discloses the process of replacement of K + by NH 4+ in the interstitial spaces of the CoFe PBA by a hot aqueous urea solution,...

XRD and Raman spectroscopy confirm the spinel CoFe2O4 structure of the nanorods. After aging, the synthesized nanorods exhibit maximum saturation magnetization and coercivity equal to 30 emu/g...

2022年3月15日 · The spinel (having general formula AB 2 O 4) structured ferrites, a significant class of magnetic materials, have attracted widespread scientific recognition in recent decades due to their potential applications in the fields of actuators, sensors, solar cells, high-density magnetic recording, data storage, and spintronics. 1,2,3 Among these ...

2025年3月27日 · To advance the hydrogen energy economy, developing efficient water-splitting catalysts is crucial. As a potential candidate for industrial applications, the catalytic performance of CoFe 2 O 4 at a large current density needs to be optimized in combination with a variety of strategies. Here, a brand-new In-doped cobalt ferrite/nickel selenide (CoFe 1.7 In 0.3 O 4 /NiSe 2) heterojunction with ...

2025年3月27日 · To illustrate the effect of Fe content on the crystal structure, comparative analysis of the XRD patterns of a-CoFe 0.1-LDH and a-CoFe 0.3-LDH was also conducted. As the Fe content increases, the diffraction peaks of a-CoFe x-LDH become broader and weaker (Fig.S3), indicating a more disordered crystal structure.

2022年1月12日 · Cobalt ferrite, Copper ferrite and cobalt doped copper ferrite nanoparticles have been synthesized and characterized using different characterization methods (XRD, FTIR and FESEM). The prepared nanoparticles have been used as promising fillers of the polyvinylidene fluoride (PVDF) polymer.

2018年8月7日 · X-ray diffraction (XRD; Rigaku RINT 2500X diffractometer) patterns were obtained by using monochromated Cu Kα radiation (40 kV, 40 mA) at a scanning rate of 1° min −1. The XRD data were collected in the 2θ range of 10–70° under ambient conditions.

X-ray diffraction (XRD) patterns reveal both samples possess a highly (00n) preferred orientation of LDHs (Figure 2 a), which was also verified by HRTEM image. The interlayer distance of...