Hollow Cu-doped NiO microspheres as anode materials with enhanced lithium storage performance

Hu, Qiwen; Li, Wenyao; Abouelamaiem, Dina Ibrahim; Xu, Chaoting; Jiang, Haiyong; Han, Weihua; He, Guanjie

doi:10.1039/c9ra03780b

Cited by 48 publications

(21 citation statements)

References 27 publications

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“…[50], and 864.07[50] which clearly corresponds to NiO. This analysis confirms the presence of in-situ NiO dopant in the FPCB-derived CuO nanoflakes[51]. The ICP and XRF analysis are carried out which indicates the major elements of the nanoflakes is Cu with a 3-4% of Ni.The microstructure, crystal structure, and elemental mapping of the NiO-doped CuO nanoflakes were investigated using HR-TEM imaging, SAED, and TEM-EDS analysis represented in Figure4.…”

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confidence: 61%

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Utilising problematic waste to detect toxic gas release in the environment: fabricating a NiO doped CuO nanoflake based ammonia sensor from e-waste

2022

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supporting

confidence: 61%

“…The bandgap energy for CuO was measured as 1.6 eV, which is higher than the value for bulk CuO (1.2 eV) [57] and lower than NiO nanoparticles (3.8 eV) [51]. The shift of the energy from one level to another can be attributed to quantum confinement in the nanocrystal structure.…”

Section: Nanoscale Advances Accepted Manuscriptmentioning

confidence: 76%

Utilising problematic waste to detect toxic gas release in the environment: fabricating a NiO doped CuO nanoflake based ammonia sensor from e-waste

2022

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“…In addition, when the Ni is substituted into CuO, the Ni ions occupy the lattice position of the Cu ions. Because the radii of the Ni 2+ (0.55 Å) and Cu 2+ (0.57 Å) ions are similar, the introduction of Ni will not cause a strong distortion of the CuO structure. With the increasing doping concentration, the film doped with 20% Ni shows the strongest peak intensity.…”

Section: Results and Discussionmentioning

confidence: 98%

High Responsivity and External Quantum Efficiency Photodetectors Based on Solution-Processed Ni-Doped CuO Films

Yin

Yang

Zhao

et al. 2020

ACS Appl. Mater. Interfaces

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Photodetectors based on p-type metal oxides are still a challenge for optoelectronic device applications. Many effects have been paid to improve their performance and expand their detection range. Here, high-quality Cu1–x Ni x O (x = 0, 0.2, and 0.4) film photodetectors were prepared by a solution process. The crystal quality, morphology, and grain size of Cu1–x Ni x O films can be modulated by Ni doping. Among the photodetectors, the Cu0.8Ni0.2O photodetector shows the maximum photocurrent value (6 × 10–7 A) under a 635 nm laser illumination. High responsivity (26.46 A/W) and external quantum efficiency (5176%) are also achieved for the Cu0.8Ni0.2O photodetector. This is because the Cu0.8Ni0.2O photosensitive layer exhibits high photoconductivity, low surface states, and high crystallization after 20% Ni doping. Compared to the other photodetectors, the Cu0.8Ni0.2O photodetector exhibits the optimal response in the near-infrared region, owing to the high absorption coefficient. These findings provide a route to fabricate high-performance and wide-detection range p-type metal oxide photodetectors.

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“…(scan rate of 10 mV s −1 ) [ 128 ]. The authors in work [ 129 ] synthesized ultrafine SnO 2 nanorods-rGO nanocomposite while using a two-step hydrothermal method (using KMnO 4 ) and those electrode materials in supercapacitors achieved the specific capacitance of 262.2 F g −1 (at 100 mA g −1 ). Coulombic efficiency is equal to 96.1% after 6000 cycles, which indicates high electrochemical performance of the system.…”

Section: Resultsmentioning

confidence: 99%

Modern Nanocomposites and Hybrids as Electrode Materials Used in Energy Carriers

et al. 2021

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Over the past decades, the application of new hybrid materials in energy storage systems has seen significant development. The efforts have been made to improve electrochemical performance, cyclic stability, and cell life. To achieve this, attempts have been made to modify existing electrode materials. This was achieved by using nano-scale materials. A reduction of size enabled an obtainment of changes of conductivity, efficient energy storage and/or conversion (better kinetics), emergence of superparamagnetism, and the enhancement of optical properties, resulting in better electrochemical performance. The design of hybrid heterostructures enabled taking full advantage of each component, synergistic effect, and interaction between components, resulting in better cycle stability and conductivity. Nowadays, nanocomposite has ended up one of the foremost prevalent materials with potential applications in batteries, flexible cells, fuel cells, photovoltaic cells, and photocatalysis. The main goal of this review is to highlight a new progress of different hybrid materials, nanocomposites (also polymeric) used in lithium-ion (LIBs) and sodium-ion (NIBs) cells, solar cells, supercapacitors, and fuel cells and their electrochemical performance.

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Hollow Cu-doped NiO microspheres as anode materials with enhanced lithium storage performance

Abstract: Doping is an effective way to optimize the properties of electrode material. Here hollow Cu-doped NiO microspheres were obtained via hydrothermal way, which exerts prominent initial capacity and better rate capability as anode materials.

Cited by 48 publications

References 27 publications

Utilising problematic waste to detect toxic gas release in the environment: fabricating a NiO doped CuO nanoflake based ammonia sensor from e-waste

Utilising problematic waste to detect toxic gas release in the environment: fabricating a NiO doped CuO nanoflake based ammonia sensor from e-waste

High Responsivity and External Quantum Efficiency Photodetectors Based on Solution-Processed Ni-Doped CuO Films

Modern Nanocomposites and Hybrids as Electrode Materials Used in Energy Carriers

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