Hydrogen reduction of porous bulk NiO particles has been studied with in situ hot-stage X-ray diffraction (XRD) in the temperature range 175–300 °C. This technique has the ability to measure NiO...

The XRD pattern of Ni/BC demonstrates the dispersed the nickel nanoparticles as indicated by the peaks at 2θ of 45°, 52.3°, and 77.4° refer to JCPDS: 03-1051 [11].

Ni is Copper structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ni is bonded to twelve equivalent Ni atoms to form a mixture of corner, edge, and face-sharing NiNi12 cuboctahedra. All Ni–Ni bond lengths are 2.48 Å.

The XRD pattern of Ni/BC demonstrates the dispersed the nickel nanoparticles as indicated by the peaks at 2θ of 45°, 52.3°, and 77.4° refer to JCPDS: 03-1051 [11].

2020年11月20日 · The XRD and ex-situ Raman spectroscopy indicate that catalyst with catalyst oxidation states equal to zero (in the Ni sample) and +2 (NiO sample), and both states in (Ni/NiO) sample were successfully produced.

2014年11月1日 · The morphology and structure of the synthesized Ni nanoparticles were characterized by transmission electron microscopy (TEM), powder X-ray diffraction (XRD), QELS data and infrared spectroscopy (IR). The result shows that Ni nanoparticles are of high purity and the average size of Ni nanoparticles was found to be 13 ± 2 nm.

2014年4月18日 · 因为纳米颗粒的小尺寸效应， 镍纳米粉的 XRD 图中衍射峰有不同程度的宽化， 可用 Scherrer 公式来估计纳米颗粒的平均晶粒尺寸： cos/ BKd 式中 d——粒径； K—与晶体形状和晶面指数有关的常数， 用 铜靶时近似为 0.89； λ—Cu 靶 Kα 辐射 X 射线波长， 为 …

2003年6月25日 · Hydrogen reduction of porous bulk NiO particles has been studied with in situ hot-stage X-ray diffraction (XRD) in the temperature range 175–300 °C. This technique has the ability to measure NiO disappearance and Ni appearance simultaneously, together with the crystallite size of each.

2020年3月26日 · The X-ray diffraction (XRD) pattern of electrodeposited Ni is shown in Fig. 1a. The XRD pattern contains the first three reflections of the face-centered cubic Ni.

氢氧化镍（Ni（OH）2）是Ni/MH和Ni/Cd 二次碱性电池主要的正极材料（简称Ni电极）[1]。 X 射线衍射是研究物质结构以及结构微小差异的基本实验方法[2,3]，从亚微晶结构特征的观点， Ni（OH）2 是由许多带微孔的微晶结成的微球，所以这些 Ni(OH)2 产品被称为“球镍” 。