Spectroscopic and Electrochemical Study of the Interconversion and Decomplexation of Cobalt(II) Sandwich Polyoxometalates Based on a Dawson-Type Anion

2012 ◽  
Vol 51 (15) ◽  
pp. 8202-8211 ◽  
Author(s):  
Laurent Ruhlmann ◽  
Delphine Schaming ◽  
Iftikhar Ahmed ◽  
Aimeric Courville ◽  
Jacqueline Canny ◽  
...  
Keyword(s):  
Electrochemical Study ◽  
Sandwich Polyoxometalates

Impact of the donor substituent on the optoelectrochemical properties of 6H-indolo[2,3-b]quinoxaline amine derivatives

2019 ◽  
Vol 43 (48) ◽  
pp. 19379-19396 ◽  
Author(s):  
Pooja S. Singh ◽  
Purav M. Badani ◽  
Rajesh M. Kamble
Keyword(s):  
Electrochemical Study ◽  
Donor Substituent

An opto-electrochemical study of D–A based indolo-quinoxaline amine derivatives was performed by varying the strength of the amine substituent.

Electrochemical Study of DNA Damaged by Oxidation Stress

2013 ◽  
Vol 16 (2) ◽  
pp. 130-141
Author(s):  
Ondrej Zitka ◽  
Sona Krizkova ◽  
Sylvie Skalickova ◽  
Pavel Kopel ◽  
Petr Babula ◽  
...  
Keyword(s):  
Electrochemical Study ◽  
Oxidation Stress

Redox Properties of CeIVDOTA in Carbonated Aqueous Solutions. A Radiolytic and an Electrochemical Study

2021 ◽  
Vol 125 (7) ◽  
pp. 1436-1446
Author(s):  
Inna Popivker ◽  
Dan Meyerstein ◽  
Dalia Gitin ◽  
Elad N. Avraham ◽  
Eric Maimon ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Redox Properties ◽  
Electrochemical Study

scholarly journals Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

2021 ◽  
Author(s):  
Xinyue Li ◽  
Marco Fortunato ◽  
Anna Maria Cardinale ◽  
Angelina Sarapulova ◽  
Christian Njel ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Photoelectron Spectroscopy ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Electrochemical Study ◽  
Ex Situ ◽  
Potential Range ◽  
X Ray ◽  
Storage Mechanism

AbstractNickel aluminum layered double hydroxide (NiAl LDH) with nitrate in its interlayer is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the performance of the material is investigated in 1 M LiPF6 in EC/DMC vs. Li. The NiAl LDH electrode based on sodium alginate (SA) binder shows a high initial discharge specific capacity of 2586 mAh g−1 at 0.05 A g−1 and good stability in the potential range of 0.01–3.0 V vs. Li+/Li, which is better than what obtained with a polyvinylidene difluoride (PVDF)-based electrode. The NiAl LDH electrode with SA binder shows, after 400 cycles at 0.5 A g−1, a cycling retention of 42.2% with a capacity of 697 mAh g−1 and at a high current density of 1.0 A g−1 shows a retention of 27.6% with a capacity of 388 mAh g−1 over 1400 cycles. In the same conditions, the PVDF-based electrode retains only 15.6% with a capacity of 182 mAh g−1 and 8.5% with a capacity of 121 mAh g−1, respectively. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. Graphical abstract The as-prepared NiAl-NO3−-LDH with the rhombohedral R-3 m space group is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the material’s performance is investigated in 1 M LiPF6 in EC/DMC vs. Li. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. This work highlights the possibility of the direct application of NiAl LDH materials as negative electrodes for LIBs.

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