Structural and electrochemical properties of La0.85Sr0.15MnO3 powder as an electrode material for supercapacitor

Synthesis of LaMnO3-reduced graphene oxide or Sr composite and their application in electrochemical properties

“…Recently, due to the short charging times, high power density and long cycle life, supercapacitors have attracted more extensive attention in energy storage field than batteries. The energy storage performances of supercapacitors mainly depend on the electrode materials [1,2]. In generally, three categories electrode materials are carbon materials, transition-metal oxide and conducting polymers respectively [2][3][4][5].…”

“…The energy storage performances of supercapacitors mainly depend on the electrode materials [1,2]. In generally, three categories electrode materials are carbon materials, transition-metal oxide and conducting polymers respectively [2][3][4][5]. Carbon material is one of the important electrode materials due to their high electrical conductivity and stability.…”

“…Due to the super electronic and ionic conductivity properties, La 0.85 Sr 0. 15 MnO 3 have been discussed as supercapacitor electrodes using the solegel method [2,[14][15][16][17]. However, the effect of the calcination temperature and time in the fabricating samples as electrode materials of supercapacitors is blurry [3,5,17,18].…”

Bimetallic Co‐Mn Perovskite Fluorides as Highly‐Stable Electrode Materials for Supercapacitors

“…have been reported as potentiale lectrode materials for supercapacitors. [6][7][8][9][10][11][12][13][14][15] Most of the reported perovskite oxide candidates, however,s till show the inferiors pecific capacitance/capacity,l ower rate behavior, or unsatisfying cyclings tability, limiting their further applications. [16] Therefore, it is of great significance to explore new perovskite candidates with superior electrochemical performance for supercapacitors.…”

“…Herein, the cycling behavior of the K-Co-Mn-F electrodes showed an increasing trend during the first few hundreds of cycles and then becameb asically stable, which is largely due to the activation process of the electrode materials.T he K-Co-Mn-F candidates are typical battery-type materials with comparatively larger particle size (0.1-2 mm), and therefore the large portions of electroactive sites cannot be effectively used initially,w hich need to be acti-vated before reaching am ore stable state, and similarp henomenah ave been also reported in the literature. [31][32][33] More significantly,t he profound performance of the perovskite K-Co-Mn-F (Co/Mn = 6:1) candidate (113-100 Cg À1 or 226-192Fg À1 at 1-16 Ag À1 ,1 18 %r etention for 5000cycles at 8Ag À1 )o utdoes many state-of-art perovskite oxide electrode materials for supercapacitors (Table S1), for example, SrMn 0.2 Ru 0.8 O 3 , [6] BiFeO 3 , [7] TiO 2 /BiFeO 3 , [8] LaNiO 3 , [9] LaMO 3 (M = Ni, Mn, Fe, Cr), [10] LaNiO 3 /NiO, [11] La 0.85 Sr 0.15 MnO 3-d , [13] (La 0.75 Sr 0.25 ) 0.95 MnO 3-d , [14] etc., largely demonstrating the advantages of the new-type bimetallic CoÀMn perovskite fluorides for supercapacitors.…”