The CN stretch of hexacyano metallates as a sensor of ligand-outer cation interactions—II. Ferrocyanides

Bertrán, José Fernández; Reguera-Ruíz, Edilso; Pascual, José Blanco

doi:10.1016/0584-8539(90)80237-s

Cited by 18 publications

(2 citation statements)

References 6 publications

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“…The blue shift of ν CN on the QD-FC sample implies the ferrocyanide molecules bound with zinc ions on the QD surface because the ν CN in ferrocyanide depends on the interactions of the cyanide with the counter cations. For example, it is expected that ν CN moves from 2040 cm − 1 to higher energy when counter cation is changed to Zn 2+ (ν CN = 2096 cm − 1 ) or Cd 2+ (ν CN = 2075 cm − 1 ) by calculation [31,32]. For an example, PB analogue, K 2 Zn 3 [Fe(CN) 6 ] 2 microplates exhibit dominant 2097 cm − 1 peak [33].…”

Section: Surface Modi Cation Of Qds With Ferrocyanidementioning

confidence: 99%

Ferrocyanide Surface Ligands to Quantum Dots for Prussian Blue Composites Showing Efficient and Reversible Electrochemical Response

Ha,

Sung,

Kwon

et al. 2024

Preprint

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We employed a novel approach to fabricate quantum dot-in-Prussian blue analogue (QD-in-PBA) composites, encapsulating colloidal QDs into the electrical conducting metal organic framework PBA, which could provide a robust platform for efficient photochemical modulation of photoluminescence (PL) intensity. To achieve this, the surface of the QDs was engineered by attaching ferrocyanide ligands. This surface modification enabled the QDs to be seamlessly and uniformly incorporated into the PBA matrix. The ferrocyanide ligands on the QD surfaces played a pivotal role in initiating the in-situ formation of PBA, facilitated by the introduction of additional ferrocyanide ions and iron (III) ions as the building blocks of PBA. Alternatively applied external voltages to the QD-in-PBA electrode within an electrochemical cell demonstrated the reversible quenching and recovery of the PL intensity of the QDs embedded within the QD-in-PBA composite. Notably, we achieved the on/off modulation ratio over 7, which could be consistently repeated across multiple cycles. In contrast, the control sample, comprising a mixture of QDs and PBA, exhibited poor stability in terms of electrochemical performance, with a reduced modulation degree observed over repeating cycles. This diminished stability can be attributed to the fact that in the control sample, the QDs were merely attached to the surface of the PBA rather than being fully incorporated within the matrix and became redispersed into the electrolyte solution during the electrochemical reactions.

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Section: Surface Modi Cation Of Qds With Ferrocyanidementioning

confidence: 99%

Ferrocyanide Surface Ligands to Quantum Dots for Prussian Blue Composites Showing Efficient and Reversible Electrochemical Response

Ha,

Sung,

Kwon

et al. 2024

Preprint

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“…In order to understand the effect of the valency of the metal ions coordinated to the nitrogen end of the ferrocyanide ligands on the electrochemical performance of the cathode materials, the capacity utilization of cathode materials with Ca 2+ ions were compared to the ratio of charge to (high spin (HS)) crystal ionic radius 2 for the metal ions at the nitrogen end, as shown in Figure 4.1. This ratio was defined as the σ-parameter [29]. The σ-parameter reflects electric field strength exerted by the metal ion which determines the its polarization power, which can be defined as the ability of the metal ion to attract the electron density towards itself.…”

Section: -mentioning

confidence: 99%

Multivalent Rechargeable Batteries

Padigi¹

2000

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Li + ion batteries have been the mainstay of high energy storage devices that have revolutionized the operating life time of consumer electronic devices for the past two decades. However, there is a steady increase in demand for energy storage devices with the ability to store more energy and deliver them at high power at low cost, without comprising safety and lifetime. First of all, I would to thank my advisor, Dr. Raj Solanki for providing me an opportunity to work in his lab. He has been and continues to be an excellent guide. He has given me a great deal of freedom to explore new ideas, and most importantly, he continues to show a great deal of patience in allowing me to learn through failed experiments. A virtue, I hope to carry with me going forward.

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Cyanide‐Bridged Complexes of Transition Metals: A Molecular Magnetism Perspective

Shatruk

Avendaño

Dunbar

2009

Progress in Inorganic Chemistry

229

157

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The CN stretch of hexacyano metallates as a sensor of ligand-outer cation interactions—II. Ferrocyanides

Cited by 18 publications

References 6 publications

Ferrocyanide Surface Ligands to Quantum Dots for Prussian Blue Composites Showing Efficient and Reversible Electrochemical Response

Ferrocyanide Surface Ligands to Quantum Dots for Prussian Blue Composites Showing Efficient and Reversible Electrochemical Response

Multivalent Rechargeable Batteries

Cyanide‐Bridged Complexes of Transition Metals: A Molecular Magnetism Perspective

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