An effective three-dimensional ordered mesoporous CuCo2O4 as electrocatalyst for Li-O2 batteries

Li, Pengfa; Sun, Wang; Yu, Qiyao; Peng, Yang; Qiao, Jinshuo; Wang, Zhenhua; Rooney, David; Sun, Kening

doi:10.1016/j.ssi.2016.02.014

Cited by 41 publications

(26 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The last has been often alleviated in LOBs by additional conductive substrates, special nano‐scale architectures (microspheres, nanoparticles, web‐like, nanowires, scale‐ and rod‐like, nanorods, etc.) of binary metal oxides, and surface alterations . Binary TMOs, like MCo 2 O 4 (M = Mn, Ni, Co) extensively studied as bifunctional catalysts for ORR and OER for LOBs, offer better electronic conductivity and higher electrochemical activity compared to their corresponding metal oxides .…”

Section: Toward Carbon‐free Air Electrodesmentioning

confidence: 99%

“…CuCo 2 O 4 has been investigated as a cathode catalyst for LOB with carbon‐based electrodes, promoting Li 2 O 2 reversible formation/decomposition, decreasing charge overpotential, and slightly improving cycle life, especially when mesoporous structure was preferred over bulk CuCo 2 O 4 . To alleviate possible side products due to presence of binder and carbon, 3D free‐standing umbrella‐like CuCo 2 O 4 nanowires (40 nm diameter, 34.71 m 2 g −1 ) and porous rod‐like NiCo 2 O 4 electrodes were synthesized on Ni foam.…”

Section: Toward Carbon‐free Air Electrodesmentioning

confidence: 99%

See 1 more Smart Citation

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

Balaish

Jung

Kim

et al. 2019

Adv Funct Materials

147

100

View full text Add to dashboard Cite

This review reports on the most updated technological aspects of Li-air battery cathode materials. It provides the reader with recent developments, alongside critical views. The requirements for air-cathodes, as well as the classification and characterization of carbon-based and carbon-free air cathodes, are listed. The effects of two major substituent groups of materials, namely carbon and advanced materials (metals, metal-oxides, metal-carbides, and metal-nitrides) aimed at replacing carbon, are discussed in terms of their chemical and electrochemical stability. The report covers aspects of surface chemistry and structure influence on the electrolyte and discharge products stability. The review also reports on the efforts to suppress side reactions and deterioration of the polymeric binders (if a composite electrode is being considered). This is recognized as a means to enhance Li-air battery performance. The report concludes with an outlook and perspective, providing the readers with some insight on other factors and their impact on the long road toward a viable air-cathode suitable for Li-air battery operations.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adfm.201808303.respectively. [1] The configuration of an aprotic LOB is based on coupling lithium metal anode and air-breathing cathode in a non-aqueous electrolyte system. The electrochemical reactions occurring during discharge are complex multistep reactions and may involve dissolved and/or adsorbed species alongside parasitic reactions. [2][3][4][5] Oxygen reduction reaction during discharge largely depends on the cathode and electrolytes characteristics; yet, a dominant process involving a two-electron oxygen reduction reaction (ORR), with the formation of Li 2 O 2 , is reported, according to the following reaction [6] The reverse process, namely lithium peroxide oxidation, occurs upon charging. The formation/decomposition of Li 2 O 2 during discharge/charge is often accompanied by parasitic side reactions, due to instability of the major battery components (cathode, electrolyte, and anode) under operating conditions. [7][8][9][10][11][12] While lithium metal anode corrosion can be mitigated by a protective solid electrolyte (SE) membrane, [13][14][15] the electrolyte and cathode are considered as the most challenging components of LOB. Much efforts have been placed on understanding the role of the electrolyte, its degradation, on Li-O 2 reaction mechanism and battery performance. [16][17][18][19][20] Nonetheless, the high discharge/ charge overpotential and severe capacity loss in the course of cycling are also largely related to the air-breathing cathode. A stable, high surface area, cost-efficient air-electrode with excellent catalytic activities toward oxygen reduction and oxidation is crucial for the development of practical LOB. Cathode materials should be stable, durable, and hold interfaces with minimum surface oxide layers, which can inhibit charge transfer during the charging p...

show abstract

Section: Toward Carbon‐free Air Electrodesmentioning

confidence: 99%

Section: Toward Carbon‐free Air Electrodesmentioning

confidence: 99%

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

Balaish

Jung

Kim

et al. 2019

Adv Funct Materials

147

100

View full text Add to dashboard Cite

show abstract

“…Recently, spinel single-phase binary metal oxides containing two metal cations such as manganese cobaltate (MnCo 2 O 4 ) [1], zinc cobaltate (ZnCo 2 O 4 ) [2,3], nickel ferrite (NiFe 2 O 4 ) [4], copper manganate (CuMn 2 O 4 ) [5], copper cobaltate (CuCo 2 O 4 ) [6], cobalt manganate (CoMn 2 O 4 ) [7], nickel cobaltate (NiCo 2 O 4 ) [8] have attracted widespread attention from researchers worldwide due to their invariably better electrochemical properties as compared to individual metal oxides or a mixture of metal oxides. The excellent electrochemical performances of these single-phase binary metal oxides are attributed to the synergetic effects of properties of the individual metal oxide components [9].…”

Section: Introductionmentioning

confidence: 99%

NiCo2O4 Nano-/Microstructures as High-Performance Biosensors: A Review

Kumar¹

2020

Nano-Micro Lett.

View full text Add to dashboard Cite

Non-enzymatic biosensors based on mixed transition metal oxides are deemed as the most promising devices due to their high sensitivity, selectivity, wide concentration range, low detection limits, and excellent recyclability. Spinel NiCo2O4 mixed oxides have drawn considerable attention recently due to their outstanding advantages including large specific surface area, high permeability, short electron, and ion diffusion pathways. Because of the rapid development of non-enzyme biosensors, the current state of methods for synthesis of pure and composite/hybrid NiCo2O4 materials and their subsequent electrochemical biosensing applications are systematically and comprehensively reviewed herein. Comparative analysis reveals better electrochemical sensing of bioanalytes by one-dimensional and two-dimensional NiCo2O4 nano-/microstructures than other morphologies. Better biosensing efficiency of NiCo2O4 as compared to corresponding individual metal oxides, viz. NiO and Co3O4, is attributed to the close intrinsic-state redox couples of Ni3+/Ni2+ (0.58 V/0.49 V) and Co3+/Co2+ (0.53 V/0.51 V). Biosensing performance of NiCo2O4 is also significantly improved by making the composites of NiCo2O4 with conducting carbonaceous materials like graphene, reduced graphene oxide, carbon nanotubes (single and multi-walled), carbon nanofibers; conducting polymers like polypyrrole (PPy), polyaniline (PANI); metal oxides NiO, Co3O4, SnO2, MnO2; and metals like Au, Pd, etc. Various factors affecting the morphologies and biosensing parameters of the nano-/micro-structured NiCo2O4 are also highlighted. Finally, some drawbacks and future perspectives related to this promising field are outlined.

show abstract

“…27 The peak of Co 2p 1/2 spectrum can be decomposed into two peaks, centered at 794.3 and 795.8 eV, corresponding to octahedral Co 3+ and tetrahedral Co 2+ ions, respectively. 27,28 In O 1s spectrum (Fig. 4d), the binding energy of 529.4 eV belongs to lattice oxygen (O 2À ) and the peak at 531.1 eV represents the defects, chemisorbed oxygen and coordinated lattice oxygen.…”

Section: Resultsmentioning

confidence: 99%

Metal–organic framework derived hollow porous CuO–CuCo₂O₄ dodecahedrons as a cathode catalyst for Li–O₂ batteries

Zhen

Wang

et al. 2019

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

An effective three-dimensional ordered mesoporous CuCo2O4 as electrocatalyst for Li-O2 batteries

Cited by 41 publications

References 47 publications

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

NiCo2O4 Nano-/Microstructures as High-Performance Biosensors: A Review

Metal–organic framework derived hollow porous CuO–CuCo₂O₄ dodecahedrons as a cathode catalyst for Li–O₂ batteries

Contact Info

Product

Resources

About

An effective three-dimensional ordered mesoporous CuCo2O4 as electrocatalyst for Li-O2 batteries

Cited by 41 publications

References 47 publications

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O2 Batteries

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O2 Batteries

NiCo2O4 Nano-/Microstructures as High-Performance Biosensors: A Review

Metal–organic framework derived hollow porous CuO–CuCo2O4 dodecahedrons as a cathode catalyst for Li–O2 batteries

Contact Info

Product

Resources

About

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

A Critical Review on Functionalization of Air‐Cathodes for Nonaqueous Li–O₂ Batteries

Metal–organic framework derived hollow porous CuO–CuCo₂O₄ dodecahedrons as a cathode catalyst for Li–O₂ batteries