Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits
Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits
复制标题
DOI：
10.1007/s43939-021-00013-z
复制
发表时间：
2021-05
影响因子：
--
通讯作者：
S. Joffre;P. DeYoung;J. R. Hampton
中科院分区：
文献类型：
--
作者：
S. Joffre;P. DeYoung;J. R. Hampton
普鲁士蓝类似物由于其具有长寿命周期的电荷存储能力而在替代电池技术中的应用引起了人们的极大兴趣。本文采用全电化学方法合成了普鲁士蓝铁氰化镍（Ni-HCF）。用电化学方法制造电荷存储材料为开发电池类材料提供了一种新的方法。这些方法尚未被普遍采用，因为电荷存储材料产率不是直接已知的。Ni-HCF的电荷储存用两种不同的方法表征，其提供了存在的电化学活性Fe的量度。然后将这些与测量存在的Fe总量的粒子诱导X射线发射（PIXE）方法进行比较。通过将活性Fe的电化学测量与通过PIXE测量的总Fe进行比较，确定在电荷存储中具有活性的材料的百分比。这使得能够独立计算材料的比充电容量，以与其他电池技术进行比较。
Prussian Blue Analogues are of major interest for their use in alternative battery technologies due to their charge storing ability with a long life cycle. In this work the Prussian Blue Analogue nickel hexacyanoferrate (Ni-HCF) was produced using an all electrochemical method. Creating charge storing materials with electrochemical processes provides a new approach to the development of battery-like materials. These methods have not been commonly employed because the charge storing material yield is not directly known. The charge storage of the Ni-HCF was characterized with two different methods which provided a measure of the electrochemically active Fe present. These were then compared with the Particle Induced X-ray Emission (PIXE) method which measured the total amount of Fe present. By comparing the electrochemical measurement of active Fe to the total Fe as measured by PIXE, the percentage of material that is active in the charge storage was determined. This enables an independent calculation of the specific charge capacity of the material for comparison to other battery technologies.