Enhanced electrochemical performances of agglomeration-free LaMnO3 perovskite nanoparticles and achieving high energy and power densities with symmetric supercapacitor design

Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO3/MnO Nano-Arrays by One-Step Electrodeposition

“…The mass specific capacitance of the single electrode can be calculated from CV or GCD measurement on the basis of Equations (1) and (2), respectively [30,31].…”

Facile Synthesis and Electrochemical Properties of Perovskite‐type CeMnO3 Nanofibers

“…Owing to the serious energy crisis, it is an extraordinary emergency to develop an environmentally friendly, sustainable, and effective energy generation, storage and conversion system. Supercapacitors are considered as a significant kind of energy storage and conversion devices on account of their eco‐friendliness, fast charging/discharging rate, long retention, high power and energy density, and wide working temperature . Depending on the energy storage mechanism, supercapacitors can commonly sort into electrochemical double layer capacitors (EDLCs), in which carbon materials are mainly applied, and pseudocapacitors, in which transition metal oxides and conductive polymers are widely utilized .…”

“…Supercapacitors are considered as a significant kind of energy storage and conversion devices on account of their eco‐friendliness, fast charging/discharging rate, long retention, high power and energy density, and wide working temperature . Depending on the energy storage mechanism, supercapacitors can commonly sort into electrochemical double layer capacitors (EDLCs), in which carbon materials are mainly applied, and pseudocapacitors, in which transition metal oxides and conductive polymers are widely utilized . However, it was reported that metal oxides based‐pseudocapacitors possess higher energy storage ability than carbon‐based EDLCs owing to the reversible Faradic surface redox reactions of metal oxides …”

“…As a typical rare earth based‐perovskite, the electrochemical behaviors of LaMnO 3 have been widely investigated owing to its stable thermal and structural properties. In addition, LaMnO 3 possesses charge storage ability both in anion and cation vacancies with intercalation and reversible Faradic reactions . In a common rare earth based‐ABO 3 mode perovskite structure, A is a rare earth element and B is a transition metal element that serves as an active component.…”

Molten salt synthesis and supercapacitor properties of oxygen-vacancy LaMnO3−

“…The position and intensities of the XRD peaks are in a good agreement with the characteristic peaks of La 0.96 MnO 2.94 (PDF#89-0683). The characteristic peaks at 22.7 °, 32.5 °, 40 °, 46.5 °, 58 °, 68 °and 77 °represent (101), (121), (220), (202), (123), (242) and (323) crystal planes, respectively, indicating that incomplete stoichiometric ratio LaMnO 3-δ has been successfully prepared [24] . Moreover, there are barely miscellaneous peaks in the XRD pattern and crystal interface can be seen clearly, revealing that the product prepared by molten salt system has high purity with a clear crystal interface.…”