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The phenol-formaldehyde (PF) resin microspheres were firstly used as the template in the sensing electrode (SE) preparation process of sensors based on Y2O3 stabilized ZrO2 (YSZ). The PF resin microspheres were synthesized by a facile hydrothermal method. The high char yield and the few morphological changes of PF resin microspheres before and after sintering at 900 °C indicated the perfect thermal...
This work reports the surface coating of Li1.2Mn0.54Ni0.13Co0.13O2 cathode material with nano-CeO2 by a versatile hydrothermal method. Thus, obtained nano-CeO2-coated Li1.2Mn0.54Ni0.13Co0.13O2 material was characterized by XRD, SEM, and TEM. It is revealed that the synthesized nano-CeO2 material has rich oxygen vacancies, and a spinel-phase layer is formed on the surface of host material. The electrochemical...
The effect of the Nb5+ substitution with a charge-compensated strategy in lithium-rich layered oxides (LLOs) Li1.2Ni0.13+xCo0.13-xMn0.54-xNbxO2 (x = 0, 0.01, 0.02, and 0.03) has been investigated systematically. A hydroxide co-precipitation method followed by a high-temperature solid-state reaction is adopted in the synthesis process. Structural characterization confirms that the low dose substituting...
Pr-doped Li4Ti5O12 in the form of Li4−x/3Ti5−2x/3PrxO12 (x = 0, 0.01, 0.03, 0.05, and 0.07) was synthesized successfully by an electrospinning technique. ICP shows that the doped samples are closed to the targeted samples. XRD analysis demonstrates that traces of Pr3+ can enlarge the lattice parameter of Li4Ti5O12 from 8.3403 to 8.3765 Å without changing the spinel structure. The increase of lattice...
Li4Ti5O12 (LTO) was synthesized with two different cooling methods by solid-state method, namely fast cooling and air cooling. The samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), galvanostatic charge–discharge test, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS), respectively. XRD revealed that the basic LTO structure...
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