LaTi0.65Fe0.35O3− nanoparticle-decorated nitrogen-doped carbon nanorods as an advanced hierarchical air electrode for rechargeable metal-air batteries

Prabu, M.; Ramakrishnan, P.; Ganesan, P.; Manthiram, Arumugam; Shanmugam, Sangaraju

doi:10.1016/j.nanoen.2015.04.005

Cited by 125 publications

(67 citation statements)

References 31 publications

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“…[99] For example, Shanmugam et al reported the synthesis of perovskite LaTi 0.65 Fe 0.35 O 3−δ nanoparticles entangled both at the surface and within the N doped carbon nanorods (NCNR) as a bifunctional ORR and OER catalyst with excellent performance. [100] Song et al further demonstrated the simply mixed, composite catalysts of perovskite oxide catalysts and polypyrrole (pPy). [101] Without any strong interactions between the two components, the overpotentials for ORR and OER on perovskite oxide catalysts were significantly reduced simply by mixing the catalyst particles with polypyrrole/carbon composites (pPy/C).…”

Section: Metal Oxide/carbonmentioning

confidence: 99%

Design of Efficient Bifunctional Oxygen Reduction/Evolution Electrocatalyst: Recent Advances and Perspectives

Huang

Wang

Peng

et al. 2017

Advanced Energy Materials

681

448

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Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are the two most important reactions in rechargeable metal‐air battery, a promising technology to meet the energy requirements for various applications. The development of low‐cost, highly efficient and stable bifunctional ORR/OER catalysts is critical for a large‐scale application of this technology. In this review, the authors first introduce the fundamentals of bifunctional ORR/OER electrocatalysis in alkaline electrolyte. Various types of nanostructured materials as bifunctional ORR/OER catalysts including metal oxide, hydroxide and sulfide, functional carbon material, metal, and their composites are then reviewed. The crucial factors that can be used to tune the activity of the catalyst towards ORR/OER are summarized, including (1) phase, morphology, crystal facet, defect, mixed‐metal and strain engineering for metal oxide; (2) heteroatom doping, topological defects, and formation of metal‐N‐C structure for carbon material; (3) alloy effect for metal. These experiences lay the foundation for large scale application of metal‐air battery and can also effectively guide the rational design of catalysts for other electrocatalytic reactions.

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Section: Metal Oxide/carbonmentioning

confidence: 99%

Design of Efficient Bifunctional Oxygen Reduction/Evolution Electrocatalyst: Recent Advances and Perspectives

Huang

Wang

Peng

et al. 2017

Advanced Energy Materials

681

448

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“…Carbon may corrode or erode at oxidative potentials [98], which is a known problem for the stability of catalyst layers made from inks or slurries. The design of perovskite-carbon hybrid systems [98][99][100][101][102] is a possible avenue to make composite electrodes more robust so that catalyst stability is decoupled from catalyst activity. Synergetic effects between carbon supports and perovskite catalysts is a very active field of research and the reader is referred to a recent review for additional discussion [98].…”

Section: Activity Metricsmentioning

confidence: 99%

“…In terms of cost, it was estimated composite electrodes of micron-sized LaMnO 3+δ [22] and Pt have about equal activity per cost [26], so that the most active nanoparticle LaMnO 3 composite in Table 3 would be about four times cheaper as compared to the commercial Pt/C benchmark in Figure 3b, albeit at significantly increased catalyst weight. Thus, perovskite oxides have been employed in many prototype devices of fuel cells [66,144,145] and Zn-air batteries [101,102,108], which is reviewed in detail elsewhere [11,89,90].…”

Section: Activity Metricsmentioning

confidence: 99%

Perovskite Electrocatalysts for the Oxygen Reduction Reaction in Alkaline Media

Risch

2017

Catalysts

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Abstract:Oxygen reduction is considered a key reaction for electrochemical energy conversion but slow kinetics hamper application in fuel cells and metal-air batteries. In this review, the prospect of perovskite oxides for the oxygen reduction reaction (ORR) in alkaline media is reviewed with respect to fundamental insight into activity and possible mechanisms. For gaining these insights, special emphasis is placed on highly crystalline perovskite films that have only recently become available for electrochemical interrogation. The prospects for applications are evaluated based on recent progress in the synthesis of perovskite nanoparticles. The review concludes with the current understanding of oxygen reduction on perovskite oxides and a perspective on opportunities for future fundamental and applied research.

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“…[1][2][3][4][5][6][7] To date, most well-established OER electrocatalysts such as ruthenium or iridium oxidess how low ORR activity,w hereas highly efficient ORR electrocatalysts, for example, Pt, show only moderate OER activity.F urthermore, the high cost of noble-metal catalysts makes their large-scale use prohibitively expensive. Developing new,e fficient bifunctionalO ER/ORR electrocatalysts based on earth-abundant materials is therefore crucial for the future deployment of these technologies.…”

Section: Introductionmentioning

confidence: 99%

Transition‐Metal Oxides/Carbides@Carbon Nanotube Composites as Multifunctional Electrocatalysts for Challenging Oxidations and Reductions

Xing

Liu

Cao

et al. 2019

Chemistry A European J

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Ther apid development of renewable-energy technologies such as water splitting, rechargeable metal-air batteries, and fuel cells requires highly efficient electrocatalysts capable of the oxygen-reduction reaction( ORR) and the oxygen-evolution reaction( OER). Herein, we report af acile sonication-driven synthesis to deposit the molecular manganese vanadium oxide precursor [Mn 4 V 4 O 17 (OAc) 3 ] 3À on multiwalled carbon nanotubes (MWCNTs). Thermal conversion of this composite at 900 8Cg ives nanostructured manganese vanadium oxides/carbides, which are stably linked to the MWCNTs. The resulting composites show excellent electrochemical reactivity for ORR and OER, and significant reactivi-ty enhancements compared with the precursors and aP t/C reference are reported.N otably,e ven under harsh acidic conditions, long-term OER activity at low overpotential is reported. In addition, we report exceptional activity of the composites for the industrially important Cl 2 evolution from an aqueous HCl electrolyte. The new composite material showsh ow molecular deposition routes leading to highly active and stable multifunctional electrocatalysts can be developed.T he facile design could in principle be extended to multiple catalystc lasses by tuning of the molecular metal oxide precursor employed.Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.Scheme1.Schematicillustration of the synthesized composites( MC x / MO x = Mn 7 C 3 /V 8 C 7 /MnO).Figure 1. PowderX-ray diffraction of a) composites prepared at different temperatures and b) 1-900 with specified peaks.

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LaTi0.65Fe0.35O3− nanoparticle-decorated nitrogen-doped carbon nanorods as an advanced hierarchical air electrode for rechargeable metal-air batteries

Cited by 125 publications

References 31 publications

Design of Efficient Bifunctional Oxygen Reduction/Evolution Electrocatalyst: Recent Advances and Perspectives

Design of Efficient Bifunctional Oxygen Reduction/Evolution Electrocatalyst: Recent Advances and Perspectives

Perovskite Electrocatalysts for the Oxygen Reduction Reaction in Alkaline Media

Transition‐Metal Oxides/Carbides@Carbon Nanotube Composites as Multifunctional Electrocatalysts for Challenging Oxidations and Reductions

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