In: ChemSusChem, 2019, vol. 12, no. 21, p. 4846–4853
Ni0.5Ti2(PO4)3/C NASICON‐type phosphate is introduced as a new anode material for lithium‐ion batteries (LIBs). Ni0.5Ti2(PO4)3/C was synthesized through the sol–gel route and delivered some remarkable electrochemical performances. Specifically, the Ni0.5Ti2(PO4)3/C electrode demonstrates a high rate capability performance and delivers high reversible capacities ranging from...
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In: Naturwissenschaften, 2004, vol. 91, no. 4, p. 157-172
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In: Mitigation and Adaptation Strategies for Global Change, 2007, vol. 12, no. 3, p. 343-365
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In: Journal of Nanobiotechnology, 2017, vol. 15, p. 58
LiCoO₂ is one of the most used cathode materials in Li-ion batteries. Its conventional synthesis requires high temperature (>800 °C) and long heating time (>24 h) to obtain the micronscale rhombohedral layered high-temperature phase of LiCoO₂ (HT-LCO). Nanoscale HT-LCO is of interest to improve the battery performance as the lithium (Li⁺) ion pathway is expected to be shorter in...
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In: Zeitschrift für Physikalische Chemie, 2010, vol. 224, no. 1-2, p. 263-278
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In: AIChE Journal, 2013, vol. 59, no. 5, p. 1446–1457
The ion conductivity of two series of porous ceramic diaphragms impregnated with caustic potash was investigated by electrochemical impedance spectroscopy. To understand the impact of the pore structure on ion conductivity, the three-dimensional (3-D) pore geometry of the diaphragms was characterized with synchrotron x-ray absorption tomography. Ion migration was calculated based on an extended...
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In: ECS Electrochemistry Letters, 2012, vol. 1, no. 4, p. F25-F28
The alkaline electrolyzer industry is facing the imminent necessity of replacing the asbestos diaphragms with a separator made of a new environmentally friendly material. The influence of a diaphragm's material and porosity on the ionic conductivity was studied for asbestos, zirconium dioxide, wollastonite and olivine diaphragms. Developed electrochemical impedance spectroscopy (EIS) set-up with...
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In: The Journal of Physical Chemistry A, 2011, vol. 115, no. 21, p. 5329–5334
We investigated the localized rotational diffusion of the (BH₄)⁻ anions in LiBH₄/LiI solid solutions by means of quasielastic and inelastic neutron scattering. The (BH₄)⁻ motions are thermally activated and characterized by activation energies in the order of 40 meV. Typical dwell times between jumps are in the picosecond range at temperatures of about 200 K. The motion is dominated by...
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In: Physical Review B: condensed matter and materials physics, 2011, vol. 83, no. 6, p. 064107
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In: The Journal of Physical Chemistry A, 2010, vol. 114, no. 37, p. 10117–10121
The hydrogen dynamics in solid and in liquid LiBH₄ was studied by means of incoherent quasielastic neutron scattering. Rotational jump diffusion of the BH₄⁻ subunits on the picosecond scale was observed in solid LiBH₄. The characteristic time constant is significantly shortened when the system transforms from the low-temperature phase to the high-temperature phase at 383 K. In the molten...
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