Facile synthesis of spinel CuCo<sub>2</sub>O<sub>4</sub> nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

Liu, Ying; Cao, Lujie; Cao, Chenwei; Wang, Man; Leung, Kwan-Lan; Zeng, Shanshan; Hung, Tai‐Feng; Chung, C.Y.; Lu, Zhouguang

doi:10.1039/c4cc04682j

Cited by 84 publications

(39 citation statements)

References 39 publications

(35 reference statements)

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“…Improving the surface catalytic activity could effectively decrease the reaction energy barrier for the above reactions, enabling low charging overpotential and improved reversibility. Metal oxides have been commonly used and investigated as the cathode catalysts for the Li-O 2 batteries [24][25][26]. However, stable molecular O 2 interacts weakly with fully oxidized metal oxides.…”

Section: Introductionmentioning

confidence: 99%

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

et al. 2017

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Section: Introductionmentioning

confidence: 99%

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

et al. 2017

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“…Yuan et al studied the SnO 2 -based cathode catalyst for lithium–air batteries [24]. Due to the advantageous synergistic effect of bimetals, CuCo 2 O 4 nanoparticles exhibited excellent catalytic activity for LOBs [25]. Recently, using a capacity-controlled method (1000 mAh g −1 ) at a current density of 100 mA g −1 , mesoporous Cr 2 O 3 nanotubes applied as a cathode catalyst for LOBs demonstrated excellent cyclic stability up to 50 cycles [16].…”

Section: Introductionmentioning

confidence: 99%

CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

Liu

Zhao

et al. 2017

Nano-Micro Lett.

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Rechargeable lithium–oxygen batteries have been considered as a promising energy storage technology because of their ultra-high theoretical energy densities which are comparable to gasoline. In order to improve the electrochemical properties of lithium–oxygen batteries (LOBs), especially the cycling performance, a high-efficiency cathode catalyst is the most important component. Hence, we aim to demonstrate that CuCr2O4@rGO (CCO@rGO) nanocomposites, which are synthesized using a facile hydrothermal method and followed by a series of calcination processes, are an effective cathode catalyst. The obtained CCO@rGO nanocomposites which served as the cathode catalyst of the LOBs exhibited an outstanding cycling performance for over 100 cycles with a fixed capacity of 1000 mAh g−1 at a current density of 200 mA g−1. The enhanced properties were attributed to the synergistic effect between the high catalytic efficiency of the spinel-structured CCO nanoparticles, the high specific surface area, and high conductivity of the rGO. Electronic supplementary materialThe online version of this article (10.1007/s40820-017-0175-z) contains supplementary material, which is available to authorized users.

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“…Compared to the broken and irregular solid structure of CuCo 2 O 4 without PVP (Figure S9), the low‐resolution TEM images (Figure a–b) reveal the hollow nature of CuCo‐4 with rectangular tube‐like structures. The high‐resolution TEM images (Figure c–d) clearly show that the hollow tube structure is composed of numerous interconnected nanoparticles with plenty of mesopores in between, which is beneficial for the diffusion of electrolyte during electrochemical reaction . Figure e illustrates the HR‐TEM image of the hollow tube with an interplanar spacing of 0.24 nm for (311) crystal plane of the CuCo 2 O 4 .…”

Section: Resultsmentioning

confidence: 95%

Solvothermal Synthesis of Mesoporous 3D‐CuCo₂O₄ Hollow Tubes as Efficient Electrocatalysts for Methanol Electro‐Oxidation

et al. 2019

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Transition metal oxides have attracted attention as promising electrode materials for energy storage and conversion devices with high electrochemical activity and stability. In this study, a simple and cost-effective solvothermal synthesis of rectangular 3D CuCo 2 O 4 hollow tubes have been developed for methanol electro-oxidation application. Electrochemical analysis shows that CuCo 2 O 4 hollow tubes exhibit superior electrochemical performance in terms of current density and cycling stability, with 75 mA cm À 2 and 90 % retention rate after 1000 cycles, respectively. The high electrochemical performances are mainly due to the morphological structure of CuCo 2 O 4 hollow tubes, which possess high surface area and porosity, resulting to a faster electron-ion transfer, enhanced reactivity and stability. Given that the synthesis of CuCo 2 O 4 hollow tubes involve a facile and cost-effective technique, the present approach, thus, opens a new era to novel materials for large-scale processes in different electrochemical applications.

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Facile synthesis of spinel CuCo₂O₄ nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

Cited by 84 publications

References 39 publications

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

Solvothermal Synthesis of Mesoporous 3D‐CuCo₂O₄ Hollow Tubes as Efficient Electrocatalysts for Methanol Electro‐Oxidation

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Facile synthesis of spinel CuCo2O4 nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

Cited by 84 publications

References 39 publications

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

Self-catalyzed decomposition of discharge products on the oxygen vacancy sites of MoO3 nanosheets for low-overpotential Li-O2 batteries

CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

Solvothermal Synthesis of Mesoporous 3D‐CuCo2O4 Hollow Tubes as Efficient Electrocatalysts for Methanol Electro‐Oxidation

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Product

Resources

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Facile synthesis of spinel CuCo₂O₄ nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

Solvothermal Synthesis of Mesoporous 3D‐CuCo₂O₄ Hollow Tubes as Efficient Electrocatalysts for Methanol Electro‐Oxidation