2014年11月1日 · Electrodeposited Ni and Ni-Mo films were investigated by X-ray diffraction (XRD) and electron probe microanalysis (EPMA). Using a Williamson-Hall technique by X-ray diffraction, the Ni thin film, which shows four Bragg diffraction peaks in the XRD chart, is estimated to have a mean grain size of 30 nm.

A unique functional electrode made of hierarchal Ni-Mo-S nanosheets with abundant exposed edges anchored on conductive and flexible carbon fiber cloth, referred to as Ni-Mo-S/C, has been developed through a facile biomolecule-assisted hydrothermal method.

2024年8月19日 · Heterogeneous Ni–Mo structures were successfully obtained by finely controlling the electrodeposition conditions, such as precursor concentration and applied current density. The Ni–Mo(2.5) composed of quasi-crystalline Ni 4 Mo nanoparticles decorated on MoO x matrix showed remarkable HER activity in alkaline, acid, and neutral media. The H ...

6 天之前 · The XRD pattern in Supplementary Fig. ... the bimetallic Ni-Mo alloy nanoparticles maximize the use of surface atoms to participate in catalytic reactions and shorten charge diffusion distance ...

2021年3月1日 · Figure 3 presents the XRD patterns, average grain size and microhardness of Ni-Mo coatings produced by different current density. XRD patterns show that Ni-Mo coatings deposited at different current density display similar predominant (1 1 1), (2 0 0) and (2 2 0) texture and no peaks related to Mo species, indicating a single Ni-Mo solid ...

3DAP和定量XRD结果均表明退火过程中纳米晶Ni-Mo合金中的溶质原子Mo在晶界处偏析。 通过DSC曲线的放热焓以及升温过程中的晶粒尺寸变化计算得到晶界能，表明退火过程中由于晶界弛豫以及溶质原子的晶界偏析有效地降低了纳米晶Ni-Mo合金的晶界能，且Mo含量越高或 ...

本文采用电沉积法制备了Ni－Mo合金电极，通过测定电极在30%KOH溶液中的阴极极化曲线，对不同沉积条件 (钼盐浓度、pH值、沉积电流密度、沉积温度)分别进行了单因素摸索实验，并在实验的基础上选择了4个影响因素和3个因素水平进行了正交试验，确定了最佳电沉积工艺条件为钼盐浓度32 g/L，pH 值 8.0，沉积电流密度 22 A·dm－2，温度 50℃。 最佳工艺条件制备出的Ni－Mo合金析氢过电位仅为68 mV，显示出良好的析氢电催化性能。 【摘 要】In this paper,we …

Ni-Mo nanocrystalline deposits (7–43 nm) with a nodular morphology were prepared by electrodeposition using direct current from citrate-ammonia solutions. They exhibited a single Ni-Mo solid...

摘要: 采用快速凝固结合脱合金化的方法制备了纳米多孔Ni、Ni-Mo合金及其氧化物电极材料，通过XRD、SEM、TEM、BET等对电极的物相、形貌结构、孔径分布进行表征，通过线性扫描伏安法、Tafel斜率和计时电位等方法测试多孔电极的电催化析氢性能。

Electrodeposited Ni and Ni–Mo films were investigated by X-ray diffraction (XRD) and electron probe microanalysis (EPMA). Using a Williamson-Hall technique by X-ray diffraction, the Ni thin