Journal ArticleDOI
In Situ FT-IR/ATR Spectroelectrochemistry of Prussian Blue in the Solid State
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TLDR
In this paper, the combination of electrochemistry in the absence of liquid electrolyte with internal reflectance FT-IR spectroscopy was accomplished using a simple two-electrode sandwich-type cell in which a crystalline germanium served both as a working electrode and an infrared transparent element.Abstract:
Interfacial oxidation and reduction of Prussian Blue (PB), KFeIII[FeII(CN)6]·nH2O (n ≈ 10), powder were probed in situ with Fourier transform infrared attenuated total reflection (FT-IR/ATR) spectroscopy. The combination of electrochemistry in the absence of liquid electrolyte with internal reflectance FT-IR spectroscopy was accomplished using a simple two-electrode sandwich-type cell in which a crystalline germanium served both as a working electrode and an infrared transparent element. Application of sufficiently large potential differences to sandwich electrodes led to oxidation and reduction of PB at opposing interfaces. The spectra, which were monitored by difference, clearly show changes in the cyanide stretching frequency range upon oxidation and reduction.read more
Citations
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Removal of interstitial H2O in hexacyanometallates for a superior cathode of a sodium-ion battery.
Jie Song,Long Wang,Yuhao Lu,Jue Liu,Bingkun Guo,Penghao Xiao,Jong Jan Lee,Xiao-Qing Yang,Graeme Henkelman,John B. Goodenough +9 more
TL;DR: The newly discovered dehydrated Na2-δMnHFC phase exhibits superior electrochemical performance compared to other reported Na-ion cathode materials and delivers at 3.5 V a reversible capacity in a sodium half cell and 140 mAh g(-1) in a full cell with a hard-carbon anode.
Journal ArticleDOI
Microplastic in the surface waters of the Ross Sea (Antarctica): Occurrence, distribution and characterization by FTIR.
Alessandra Cincinelli,Costanza Scopetani,David Chelazzi,Emilia Lombardini,Tania Martellini,Athanasios Katsoyiannis,Maria Cristina Fossi,Simonetta Corsolini +7 more
TL;DR: The presence of different types of MPs was confirmed by FTIR spectroscopy, with predominant abundance of polyethylene and polypropylene, and the potential environmental impact arising from scientific activities, such as marine activities for scientific purposes, and from the sewage treatment plant, was evidenced.
Journal ArticleDOI
Single-crystal FeFe(CN)6 nanoparticles: a high capacity and high rate cathode for Na-ion batteries
TL;DR: In this paper, the purity and crystallinity of the Prussian blue lattices were controlled to achieve high capacity and high cyclability for Na ion battery applications, and a single-crystal FeIIIFeIII(CN)6 nanoparticles were synthesized and found to have a sufficiently high capacity of 120 mA h g−1, an exceptional rate capability at 20 C and superior cyclability with 87% capacity retention over 500 cycles.
Journal ArticleDOI
Mesoporous Prussian Blue Analogues: Template‐Free Synthesis and Sodium‐Ion Battery Applications
Yanfeng Yue,Andrew J. Binder,Bingkun Guo,Zhiyong Zhang,Zhen-An Qiao,Chengcheng Tian,Sheng Dai,Sheng Dai +7 more
TL;DR: The reported method stands as an environmentally friendly and low-cost alternative to hard or soft templating for the fabrication of mesoporous materials.
Journal ArticleDOI
Transformation of Rusty Stainless‐Steel Meshes into Stable, Low‐Cost, and Binder‐Free Cathodes for High‐Performance Potassium‐Ion Batteries
Yun-Hai Zhu,Yun-Hai Zhu,Yan-Bin Yin,Yan-Bin Yin,Xu Yang,Tao Sun,Sai Wang,Sai Wang,Yin-Shan Jiang,Jun-Min Yan,Xin-Bo Zhang +10 more
TL;DR: A new strategy to fabricate flexible binder-free KIB electrodes via transformation of the corrosion layer of RSSM into compact stack-layers of Prussian blue (PB) nanocubes (PB@SSM), which exhibits excellent electrochemical performances for KIB.
References
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Journal ArticleDOI
Electrochemistry of polynuclear transition metal cyanides: Prussian blue and its analogues
Journal ArticleDOI
Investigations of the O 2 Reduction Reaction at the Platinum/Nafion® Interface Using a Solid‐State Electrochemical Cell
TL;DR: In this paper, the concentration and diffusion coefficient of oxygen in Nafion, and the electrode kinetic parameters for the reduction of oxygen at the Pt/Nafion interface under totally solid-state conditions (i.e., no contacting liquid electrolyte phase).
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Electron diffusion in wet and dry Prussian blue films on interdigitated array electrodes
B. J. Feldman,Royce W. Murray +1 more
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Charge transport in electroactive polymers consisting of fixed molecular Redox sites
TL;DR: In this paper, the authors discuss some current issues related to the polymeric electron self-exchange dynamics, including separation of electron from ion mobility, theory that accounts for currents limited by concentration polarized and by electrical potential gradients, and the consequences of site dilution as found in differing degrees of mixed valency and when non-electroactive sites are added.