2023年9月1日 · X-ray diffraction (XRD, Rigaku MiniFlex X-ray diffractometer (Japan)) was utilized to measure the crystalline pattern of the films over a 2θ range of 20–90°. The TEM analysis was performed using a JEOL-JEM2100F, Japan, operating at an acceleration voltage of 200 kV.

2021年7月14日 · After combining with a perovskite solar cell, our tandem system achieves 4.8% solar-to-hydrogen conversion efficiency (3.9 mA cm −2 in NiFeO x @Ge-PH/perovskite solar water splitting system). Our...

2019年10月8日 · Herein, we highlight a fast and convenient method based on O 2 radio frequency (RF) plasma treatment to construct a layer of NiFeOx on the surface of NiFeP. With controllable O 2 RF plasma treatment, a thin layer of amorphous NiFeOx was formed on the hierarchical NiFeP electrocatalyst supported on Ni foam.

2022年12月14日 · The XRD of NiFeCoO x catalyst which has 2.7 wt.% Fe and Ni to Co molar ratio of 2:1, showed NiCo 2 O 4 spinel crystal structure with a most intense peak at 2θ 36.8 assigned to (311), all peaks are indexed to NiCo 2 O 4 (JCPDS card no. 20-0781).

2019年7月15日 · The obtained porous NiFeO x @NiFeP well maintains the amorphous feature, evidenced by the XRD pattern (Fig. S2b) and selected area electron diffraction (SAED, Fig. 2 a). The porous structure is characterized using HRTEM.

A complete physicochemical characterization of the catalyst was performed through X‐ray diffraction (XRD), Transmission electron microscopy (TEM) and X‐ray photoelectron spectroscopy (XPS ...

2021年11月29日 · Herein, we demonstrated that N-incorporation could efficiently activate NiFeO x catalysts for significantly enhancing the oxygen evolution activity and stability of BiVO 4 photoanodes, and the...

To get further insight into the OER catalytic durability, the NiFeOx/NiFeP/NF-3min electrocatalyst after long-term stability test is characterized by XRD, XPS, and SEM.

The Ni-Fe oxide was the most promising co-catalyst for the oxygen evolution in the anionic environment in terms of an enhanced PEC photocurrent and efficiency. The materials were physico-chemically characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM).

Alkaline water electrolysis (AWE) is the promising technical pathway of large‐scale green hydrogen production. The sluggish oxygen evolution reaction seriously hampers the water decomposition...