Large Lattice Responses in a Mixed-Valence Prussian Blue Analogue Owing to Electronic and Spin Transitions Induced by X-ray Irradiation

2004 ◽  
Vol 43 (46) ◽  
pp. 6316-6319 ◽  
Author(s):  
Serena Margadonna ◽  
Kosmas Prassides ◽  
Andrew N. Fitch
Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3371 ◽  
Author(s):  
Svensson ◽  
Grins ◽  
Eklöf ◽  
Eriksson ◽  
Wardecki ◽  
...  

The CO2 adsorption on various Prussian blue analogue hexacyanoferrates was evaluated by thermogravimetric analysis. Compositions of prepared phases were verified by energy-dispersive X-ray spectroscopy, infra-red spectroscopy and powder X-ray diffraction. The influence of different alkali cations in the cubic Fm3m structures was investigated for nominal compositions A2/3Cu[Fe(CN)6]2/3 with A = vacant, Li, Na, K, Rb, Cs. The Rb and Cs compounds show the highest CO2 adsorption per unit cell, 3.3 molecules of CO2 at 20 C and 1 bar, while in terms of mmol/g the Na compound exhibits the highest adsorption capability, 3.8 mmol/g at 20 C and 1 bar. The fastest adsorption/desorption is exhibited by the A-cation free compound and the Li compound. The influence of the amount of Fe(CN)6 vacancies were assessed by determining the CO2 adsorption capabilities of Cu[Fe(CN)6]1/2 (Fm3m symmetry, nominally 50% vacancies), KCu[Fe(CN)6]3/4 (Fm3m symmetry, nominally 25% vacancies), and CsCu[Fe(CN)6] (I-4m2 symmetry, nominally 0% vacancies). Higher adsorption was, as expected, shown on compounds with higher vacancy concentrations.


ChemInform ◽  
2006 ◽  
Vol 37 (38) ◽  
Author(s):  
Dionisis Papanikolaou ◽  
Serena Margadonna ◽  
Wataru Kosaka ◽  
Shin-ichi Ohkoshi ◽  
Michela Brunelli ◽  
...  

2020 ◽  
Vol 49 (37) ◽  
pp. 12940-12944
Author(s):  
Hanna L. B. Boström ◽  
Andrew B. Cairns ◽  
Lei Liu ◽  
Peter Lazor ◽  
Ines E. Collings

Pressure and X-ray irradiation induced spin crossover is found in Prussian blue analogue FePt(CN)6.


2014 ◽  
Vol 5 (22) ◽  
pp. 4008-4013 ◽  
Author(s):  
Daisuke Asakura ◽  
Yusuke Nanba ◽  
Masashi Okubo ◽  
Yoshifumi Mizuno ◽  
Hideharu Niwa ◽  
...  

2014 ◽  
Vol 26 (8) ◽  
pp. 2586-2594 ◽  
Author(s):  
Daniel M. Pajerowski ◽  
Bruce Ravel ◽  
Carissa H. Li ◽  
Matthieu F. Dumont ◽  
Daniel R. Talham

2004 ◽  
Vol 126 (50) ◽  
pp. 16472-16477 ◽  
Author(s):  
Patrick Franz ◽  
Christina Ambrus ◽  
Andreas Hauser ◽  
Dmitry Chernyshov ◽  
Marc Hostettler ◽  
...  

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Scott D. Joffre ◽  
Paul A. DeYoung ◽  
Jennifer R. Hampton

AbstractPrussian 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.


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