NiO nanoflakes decorated needle-like MnCo2O4 hierarchical structure on nickle foam as an additive-free and high performance supercapacitor electrode

He, Mi; Cao, Linli; Li, Weilong; Chang, Xinwei; Zheng, Xinliang; Ren, Zhaoyu

doi:10.1007/s10853-021-05810-8

Cited by 22 publications

(11 citation statements)

References 51 publications

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“…Transition metal oxides are appealing for OER because they possess multiple oxidation states that boost the corresponding electron transfer. , Furthermore, in their mixed metal form, transition metal-based catalysts have multivalent possibilities, which in turn increase their OER activity by providing oxidation sites to facilitate charge transport . Compared to single metal oxides, mixed metal oxides possess richer redox sites and larger lattice parameter that allow higher ion diffusion for oxygen evolution . Moreover, the presence of multiple cations in mixed metal oxides can lower the activation energy for electron transfer, which increases their electronic conductivity .…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Balqis

Irmawati

Geng

et al. 2023

ACS Appl. Nano Mater.

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Discovering sources of transition metals, such as Ni, Co, and Mn, has become crucial due to their broad applicability, particularly as electrocatalysts for the oxygen evolution reaction (OER). Upcycled spent batteries have emerged as alternatives for transition metal sources for the OER electrocatalysts. In this work, Ni−Co−Mn oxalates were extracted from the spent LiNi x Co y Mn z O 2 (NCM) cathode of lithium-ion batteries. The extracted oxalates were further processed via ball milling as a rapid and scalable mechanochemical route to engineer their structures. After calcination, Ni−Co−Mn oxides with nanosized granules on the surface that mainly consist of MnCo 2 O 4 were obtained. With a correlation of morphology and trimetallic oxide formation with the OER catalytic performance, Ni−Co−Mn oxides exhibit OER overpotentials of 367 and 732 mV in alkaline and neutral media, respectively, showing OER catalytic activity in a wide pH range. The results indicate that ball milling can induce particle size reduction and bond formation between metals to facilitate mixedmetal oxide formation. Furthermore, the resulting material is also applicable as the catalyst in the air cathode of Zn-air batteries, where the battery achieved a power density of 85.42 mW cm −2 and 100 h of cycling stability, showing comparability with a battery with a Pt/C−Ir/C catalyst.

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Section: Introductionmentioning

confidence: 99%

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Balqis

Irmawati

Geng

et al. 2023

ACS Appl. Nano Mater.

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“…Recently, binary transition metal oxides have shown better performance than single metal oxides due to their more multivalent active sites. 11 Bimetallic compounds such as ZnCo 2 O 4 , NiCo 2 O 4 , 12 NiMoO 4 , RuCo 2 O 4 13 and CoMoO 4 are recognized as promising alternatives to single metal oxides due to their low cost and abundant content. Combining carbon materials with transition metal oxides is another reasonable solution to overcome the disadvantages of single metal oxides.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of composite material of RuCo₂O₄and graphene on nickel foam for supercapacitor electrodes

Meng

Lü

et al. 2022

RSC Adv.

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“…Transition metal oxides (NiO [3], MnO 2 [4], Co 3 O 4 [5]) are most widely studied and reported cathode materials for supercapacitors for the advantages of high specific capacity, good structural stability, low cost, non-toxicity, and abundant natural resources [6]. Among these transition metal oxides, Co 3 O 4 is considered as an ideal cathode material for supercapacitors due to its high theoretical specific capacity (333.9 mAh g −1 ), unique nanostructure, and environmental friendliness [7].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposited molybdenum-doped Co3O4 nanosheet arrays for high-performance and stable hybrid supercapacitors

Shen

Yang

Song

et al. 2021

J Solid State Electrochem

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Long-cycle stability and high-energy density are big challenges for developing high-performance hybrid supercapacitor (HSC) electrode materials. In this work, molybdenum-doped Co 3 O 4 nanosheets arrays on nickel foam (noted as Mo x Co 1.5−x O/ NF) are successfully prepared via facile one-step electrodeposition followed by annealing for hybrid supercapacitors. The experimental and calculated results indicate that the band gap modification and conductivity enhancement of Mo x Co 1.5−x O lead to excellent capacitive performance due to the doping of Mo into Co 3 O 4 . The as-prepared Mo 0.25 Co 1.25 /NF electrode demonstrates a high specific capacity of 128.2 mAh g −1 (923 F g −1 ) at 1 A g −1 (60% higher than the undoped Co 3 O 4 ) and superior cycle stability with 95.2% capacity retention after 10,000 cycles at 10 A g −1 . The assembled HSC delivers highenergy density of 64.3 Wh kg −1 at the power density of 794.1 W kg −1 and with 87.7% capacity retention after 10,000 cycles. This work can present a new strategy to fabricate the three-dimensional high-performance integrated electrode materials by a facile electrodeposition for heteroatom-doped transition metal oxide for high-performance supercapacitors.

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NiO nanoflakes decorated needle-like MnCo2O4 hierarchical structure on nickle foam as an additive-free and high performance supercapacitor electrode

Cited by 22 publications

References 51 publications

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Fabrication of composite material of RuCo₂O₄and graphene on nickel foam for supercapacitor electrodes

Electrodeposited molybdenum-doped Co3O4 nanosheet arrays for high-performance and stable hybrid supercapacitors

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NiO nanoflakes decorated needle-like MnCo2O4 hierarchical structure on nickle foam as an additive-free and high performance supercapacitor electrode

Cited by 22 publications

References 51 publications

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Nanostructured Ball-Milled Ni–Co–Mn Oxides from Spent Li-Ion Batteries as Electrocatalysts for Oxygen Evolution Reaction

Fabrication of composite material of RuCo2O4and graphene on nickel foam for supercapacitor electrodes

Electrodeposited molybdenum-doped Co3O4 nanosheet arrays for high-performance and stable hybrid supercapacitors

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Product

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Fabrication of composite material of RuCo₂O₄and graphene on nickel foam for supercapacitor electrodes