A general strategy for preparing hollow spherical multilayer structures of Oxygen-Rich vacancy transition metal Oxides, especially high entropy perovskite oxides

Tailoring the Perovskite Structure to Acquire an Inorganic La2NiCrO6 Double Perovskite as an Efficient Energy Storage Application by Varying Molar Concentrations of Citric Acid

“…23 Meng et al prepared La(Co 0.2 Mn 0.2 -Fe 0.2 Ni 0.2 Cu 0.2 )O 3 with a hollow spherical multilayer structure, used it as a supercapacitor electrode material that exhibited the specific capacitance of 625 F g −1 at a 1 A g −1 current density. 24 Nan et al achieved yolk−shell La 0.7 Bi 0.3 Mn 0.4 Fe 0.3 Cu 0.3 O 3 high-energy perovskite oxides with a specific capacity of 409 C g −1 at a 0.5 A g −1 current density. 25 Sun et al successfully constructed a multilayered nanostructured LaMnO 3 @CC-PPy hybrid electrode using a two-step electrodeposition method.…”

“…Liu et al synthesized double perovskite oxide PrBaMn 2 O 6 , which exhibited the specific capacitance of 1034 F g –1 at a current density of 1 A g –1 . Meng et al prepared La­(Co 0.2 Mn 0.2 ­Fe 0.2 Ni 0.2 Cu 0.2 )­O 3 with a hollow spherical multilayer structure, used it as a supercapacitor electrode material that exhibited the specific capacitance of 625 F g –1 at a 1 A g –1 current density . Nan et al achieved yolk–shell La 0.7 Bi 0.3 ­Mn 0.4 Fe 0.3 Cu 0.3 O 3 high-energy perovskite oxides with a specific capacity of 409 C g –1 at a 0.5 A g –1 current density .…”

Electrodeposition of Self-Supported High-Entropy Spinel Oxides for Stable Oxygen Evolution

“…To quantify the fractions of Co and Ni in various oxidation states on FeCoNiMnCr@CC after long cycling, we performed XPS peak deconvolution on all samples. According to Figure S21 and Table S9, the long-term cycle promoted the formation of highly active oxidation states, ensuring the long-lasting high activity of FeCoNiMnCr@CC …”

Insights into high-entropy material synthesis dynamics criteria based on a thermodynamic framework

“…4a). 12,[57][58][59][60][61] By comparison, a fast increase in temperature to the target value or higher would result in a very large ion flux per unit of time, which would he conducive to the formation of an extremely miscible solid solution from the precursor in a very short time. This would also maintain the crystal structure of the monophasic HEMs solute through fast kinetics under the superfast cooling rate (Fig.…”

“…In the current research work, 41,42,58 most studies on the prediction of HEMS have used thermodynamic criteria, while the synthetic kinetics has been largely ignored. The main reason is that the synthetic kinetics theory lacks a complete mathematical framework, which leads to a lack of rigorous mathematical basis and standards in the process of guiding specific synthesis.…”