Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries

Lv, Yue; Li, Zhixing; Yu, Yan; Yin, Jinling; Song, Kefan; Yang, Bingqian; Yuan, Lefan; Hu, Xiulan

doi:10.1016/j.jallcom.2019.06.114

Cited by 56 publications

(51 citation statements)

References 34 publications

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“…The halide perovskite materials could be extended to a range of secondary battery systems. The application of halide perovskites in various energy systems is promising, since the perovskite structures have been found applicable to a number of alkali-ion batteries, [241,242] lithium-sulfur batteries, lithiumoxygen batteries, [243][244][245][246][247][248][249][250][251][252][253][254][255][256] and zinc-air batteries. [257][258][259][260][261] Further deployment depends on the improvement of the halide perovskites stability when they are in contact with the salient species in the battery devices, such as the aqueous environment and basic/acidic electrolyte.…”

Section: Suggestions and Outlookmentioning

confidence: 99%

Halide Perovskite Materials for Energy Storage Applications

Zhang

Miao

et al. 2020

Adv Funct Materials

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Halide perovskites, traditionally a solar-cell material that exhibits superior energy conversion properties, have recently been deployed in energy storage systems such as lithium-ion batteries and photorechargeable batteries. Here, recent progress in halide perovskite-based energy storage systems is presented, focusing on halide perovskite lithium-ion batteries and halide perovskite photorechargeable batteries. Halide-perovskitebased supercapacitors and photosupercapacitors are also discussed. The photorechargeable batteries and photorechargeable supercapacitors employ solar energy to photocharge the battery; this saves energy and improves device portability. These lightweight, integrated halide perovskite-based systems, which are pertinent to electric vehicles and portable electronic devices, are reviewed in detail. Suggestions on future research into the design of halide-perovskite-based energy storage materials are also given. This review provides a foundation for the development of integrated lightweight energy conversion and storage materials.

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Section: Suggestions and Outlookmentioning

confidence: 99%

Halide Perovskite Materials for Energy Storage Applications

Zhang

Miao

et al. 2020

Adv Funct Materials

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“…In Mn 2p 3/2 , two doublet peaks were observed for the co-existence of the mixed oxidation state of Mn 3+ and Mn 4+ . Several Mn 3+ can be oxidized into Mn 4+ while doping with other elements on the B site; however, the high intensity of Mn 3+ indicates that the main component is present in the form of +3 in composite [ 27 ]. The ratio of Mn 4+ /Mn 3+ was calculated as 0.68, and it was obtained from the peak area of Mn 4+ and Mn 3+ .…”

Section: Resultsmentioning

confidence: 99%

“…peak indicates the stronger covalence of the B-O bond, which favors the O 2 − /OH − exchange. The obtained results suggest that the doping of Ce and Fe in LaMnO 3 perovskite structures can increase the Mn 4+ generation and oxygen vacancies, which will improve the kinetics of ORR and OER performance [ 25 , 26 , 27 ].…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the RDE measurements were conducted using the LCFM(8255)-gly/GNS composite electrode at different rotational speeds in the range of 400–2500 rpm ( Figure 5 C). The electron transfer number (n) can be calculated from these RDE polarization curves, which is one of the major factors for ORR catalyst evaluation [ 25 , 27 ]. To analysis the ORR reaction kinetics, the Koutecky–Levich Equations (1) and (2) can be followed based on the relation of inverted limiting current density J −1 versus square roots of rotation speed (ω −1/2 ), the data can be seen in Figure 5 D.

where J , J L and J K are the measured currents, diffusion-limited current and kinetic current densities, respectively, ω is the electrode angular rotation speed, n is the electron transfer number, F is the Faraday constant (96485 A∙s mol −1 ), ν is the kinematic viscosity (0.01 cm 2 s −1 ), C 0 is the bulk concentration (1.9 × 10 −5 mol cm −3 ) and D 0 is the diffusion coefficient (1.2 × 10 −6 mol cm −3 ) of dissolved O 2 in 0.1 M KOH electrolyte.…”

Section: Resultsmentioning

confidence: 99%

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Graphene Nanosheet-Wrapped Mesoporous La0.8Ce0.2Fe0.5Mn0.5O3 Perovskite Oxide Composite for Improved Oxygen Reaction Electro-Kinetics and Li-O2 Battery Application

et al. 2021

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A novel design and synthesis methodology is the most important consideration in the development of a superior electrocatalyst for improving the kinetics of oxygen electrode reactions, such as the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) in Li-O2 battery application. Herein, we demonstrate a glycine-assisted hydrothermal and probe sonication method for the synthesis of a mesoporous spherical La0.8Ce0.2Fe0.5Mn0.5O3 perovskite particle and embedded graphene nanosheet (LCFM(8255)-gly/GNS) composite and evaluate its bifunctional ORR/OER kinetics in Li-O2 battery application. The physicochemical characterization confirms that the as-formed LCFM(8255)-gly perovskite catalyst has a highly crystalline structure and mesoporous morphology with a large specific surface area. The LCFM(8255)-gly/GNS composite hybrid structure exhibits an improved onset potential and high current density toward ORR/OER in both aqueous and non-aqueous electrolytes. The LCFM(8255)-gly/GNS composite cathode (ca. 8475 mAh g−1) delivers a higher discharge capacity than the La0.5Ce0.5Fe0.5Mn0.5O3-gly/GNS cathode (ca. 5796 mAh g−1) in a Li-O2 battery at a current density of 100 mA g−1. Our results revealed that the composite’s high electrochemical activity comes from the synergism of highly abundant oxygen vacancies and redox-active sites due to the Ce and Fe dopant in LaMnO3 and the excellent charge transfer characteristics of the graphene materials. The as-developed cathode catalyst performed appreciable cycle stability up to 55 cycles at a limited capacity of 1000 mAh g−1 based on conventional glass fiber separators.

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“…The research findings of Lv and his coworkers showed that the perovskite-type LaMn 0.8 Cu 0.2 O 3 and LaMn 0.8 Co 0.2 O 3 had good bi-functional catalytic activities due to the presence of Mn 4+ /Mn 3+ and oxygen vacancies. The study exemplified that B-site doping is an effective solution to improve the ORR and OER catalytic activity of perovskite in Li-O 2 batteries [ 124 ].Many researchers have shown that the catalytic activity of the ABO 3 perovskite toward the oxygen reduction reaction and oxygen evolution reaction is enhanced while tuning the A site’s deficient and excessive stoichiometry [ 125 ]. In a study, Miao and his coworkers chose the simplest Mn-based perovskite (LaMnO 3 ) to explain the deficient effects and enhancing mechanisms on both ORR and OER.…”

Section: Perovskite-based Nanocomposites In Battery Studiesmentioning

confidence: 99%

High-Performance-Based Perovskite-Supported Nanocomposite for the Development of Green Energy Device Applications: An Overview

Chen

Ramachandran²,

Anushya³

et al. 2021

Nanomaterials

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Perovskite-based electrode catalysts are the most promising potential candidate that could bring about remarkable scientific advances in widespread renewable energy-storage devices, especially supercapacitors, batteries, fuel cells, solid oxide fuel cells, and solar-cell applications. This review demonstrated that perovskite composites are used as advanced electrode materials for efficient energy-storage-device development with different working principles and various available electrochemical technologies. Research efforts on increasing energy-storage efficiency, a wide range of electro-active constituents, and a longer lifetime of the various perovskite materials are discussed in this review. Furthermore, this review describes the prospects, widespread available materials, properties, synthesis strategies, uses of perovskite-supported materials, and our views on future perspectives of high-performance, next-generation sustainable-energy technology.

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Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries

Cited by 56 publications

References 34 publications

Halide Perovskite Materials for Energy Storage Applications

Halide Perovskite Materials for Energy Storage Applications

Graphene Nanosheet-Wrapped Mesoporous La0.8Ce0.2Fe0.5Mn0.5O3 Perovskite Oxide Composite for Improved Oxygen Reaction Electro-Kinetics and Li-O2 Battery Application

High-Performance-Based Perovskite-Supported Nanocomposite for the Development of Green Energy Device Applications: An Overview

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