| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dey, Dr. Avishek
University College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2021Tin oxide for optoelectronic, photovoltaic and energy storage devices: a reviewcitations
- 2021Removal and Degradation of Mixed Dye Pollutants by Integrated Adsorption-Photocatalysis Technique Using 2-D MoS<sub>2</sub>/TiO<sub>2</sub> Nanocompositecitations
- 2020Solution Processed Pure Sulfide CZCTS Solar Cells with Efficiency 10.8% using Ultra-Thin CuO Intermediate Layercitations
- 2019Continuous Hydrothermal Synthesis of Metal Germanates (M<sub>2</sub>GeO<sub>4</sub> ; M = Co, Mn, Zn) for High Capacity Negative Electrodes in Li‐ion Batteriescitations
- 2019Effects of Precursor Concentration in Solvent and Nanomaterials Room Temperature Aging on the Growth Morphology and Surface Characteristics of Ni–NiO Nanocatalysts Produced by Dendrites Combustion during SCScitations
- 2017Tuning the properties of a black TiO<sub>2</sub>-Ag visible light photocatalyst produced by rapid one-pot chemical reductioncitations
Places of action
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article
Continuous Hydrothermal Synthesis of Metal Germanates (M<sub>2</sub>GeO<sub>4</sub> ; M = Co, Mn, Zn) for High Capacity Negative Electrodes in Li‐ion Batteries
Abstract
Nanosized metal germanates (M<sub>2</sub>GeO<sub>4</sub>; M = Co, Mn, Zn) were synthesised using a continuous hydrothermal flow synthesis process for the first time. Phase‐pure rhombohedral Zn<sub>2</sub>GeO<sub>4</sub> nanorods, cubic spinel Co<sub>2</sub>GeO<sub>4</sub> nanoparticles, and orthorhombic Mn2GeO4 nanotubes/nanoparticles were obtained. The electrochemical properties of all samples as active materials for negative electrodes in Li‐ion half cells was explored. The galvanostatic and potentiodynamic testing was conducted in the potential range 3.00 to 0.05 V vs. Li/Li<sup>+</sup>. The results suggest that both alloying and conversion reactions associated with Ge contributed to the stored charge capacity; Zn<sub>2</sub>GeO<sub>4</sub> showed a high specific capacity of 600 mAh g<sup>-1</sup> (10 cycles at 0.1 A g <sup>-1</sup>) due to alloying and conversion reactions for both Ge and Zn. Mn<sub>2</sub>GeO<sub>4</sub> was studied for the first time as a potential negative electrode material in a Li‐ion half‐cell; an excellent specific charge capacity of 510 mAh g<sup>-1</sup> (10 cycles / 0.1 A g<sup>-1</sup>) was obtained with a significant contribution to charge arising from the conversion reaction of Mn to MnO upon delithiation. In contrast, Co<sub>2</sub>GeO<sub>4</sub> only showed a specific capacity of 240 mAh g<sup>-1</sup>, after 10 cycles at the same current rate, which suggested that cobalt had little or no benefit for enhancing stored charge in the germanate.