High-performance binder-free supercapacitor electrode by direct growth of cobalt-manganese composite oxide nansostructures on nickel foam

Jiang, Shulan; Shi, Tielin; Long, Hu; Sun, Yongming; Zhou, Wei; Tang, Zirong

doi:10.1186/1556-276x-9-492

Cited by 67 publications

(28 citation statements)

References 40 publications

(59 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The currents generated by the untreated Ni foam during CV testing are quite negligible which reveals that there is no capacitance contribution from the bare Ni foam [48,49]. In contrast, the 2nd and 3rd cycle CV curves of nanograveled NiO/Ni are similar, whereas there is an obvious difference among the 1st cycle and the subsequent two cycles, as shown in Fig.…”

Section: Mechanical Properties Of Nanogravel Structured Nio/ni Electrcontrasting

confidence: 44%

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Rahman

Wen

2015

Ionics

View full text Add to dashboard Cite

Nanogravel structured NiO/Ni electrodes were fabricated by using two-step thermal oxidation method of commercial nickel (Ni) foam in air for lithium-ion batteries (LIBs). The macro-and micro-structures of the NiO/Ni foam were characterized using X-ray diffraction (XRD), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), and Raman spectroscopy. Galvanostatic tests revealed that the electrode exhibits no obvious capacity fading over 40 cycles at 1 C (718 mAg −1 ) and 2.5 C (1.8 Ag −1 ) current rate. The discharge capacity was higher than the theoretical capacity of NiO even at a highcurrent rate of 2.5 C. The electrodes can deliver a reversible capacity of 1116.65 mAh g −1 after 20th cycle at 1 C rate and 1026.20 mAh g −1 after 40th cycle at 2.5 C rate. The cyclic voltammograms and impedance spectra analysis indicated that a redox reaction of NiO-Ni 0 with formation and decomposition of Li 2 O. The excellent electrochemical performance is mainly attributed to the nanogravel structure of the NiO/Ni foam electrodes as well as its excellent electrical contact between NiO and Ni. The unique nanostructured NiO on the highly conductive metallic Ni in core resulted in the enhanced discharge capacity, coulombic efficiency, cyclic stability, and rate capability when utilized as negative electrodes in LIBs.

show abstract

Section: Mechanical Properties Of Nanogravel Structured Nio/ni Electrcontrasting

confidence: 44%

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Rahman

Wen

2015

Ionics

View full text Add to dashboard Cite

show abstract

“…N 2 adsorption/desorption analysis was conducted to explore the pore structure of Mn 2 O 3 −Co 3 O 4 /C at liquid N 2 temperature. The isotherm of the catalyst (Figure a) indicates a type IV with an H3 hysteresis loop, indicating the presence of slit‐shaped mesopores in the Mn 2 O 3 −Co 3 O 4 /C catalyst . The catalyst exhibits a Brunauer−Emmett−Teller (BET) surface area of 225.3 m 2 /g with a pore volume of 0.42 cm 3 /g.…”

Section: Resultsmentioning

confidence: 99%

Highly dispersed Mn₂O₃−Co₃O₄ nanostructures on carbon matrix as heterogeneous Fenton‐like catalyst

Hazarika

Talukdar

Sudarsanam

et al. 2020

Applied Organom Chemis

View full text Add to dashboard Cite

This work reports the synthesis of various carbon (Vulcan XC‐72 R) supported metal oxide nanostructures, such as Mn2O3, Co3O4 and Mn2O3−Co3O4 as heterogeneous Fenton‐like catalysts for the degradation of organic dye pollutants, namely Rhodamine B (RB) and Congo Red (CR) in wastewater. The activity results showed that the bimetallic Mn2O3−Co3O4/C catalyst exhibits much higher activity than the monometallic Mn2O3/C and Co3O4/C catalysts for the degradation of both RB and CR pollutants, due to the synergistic properties induced by the Mn−Co and/or Mn (Co)−support interactions. The degradation efficiency of RB and CR was considerably increased with an increase of reaction temperature from 25 to 45°C. Importantly, the bimetallic Mn2O3−Co3O4/C catalyst could maintain its catalytic activity up to five successive cycles, revealing its catalytic durability for wastewater purification. The structure–activity correlations demonstrated a probable mechanism for the degradation of organic dye pollutants in wastewater, involving •OH radical as well as Mn2+/Mn3+ or Co2+/Co3+ redox couple of the Mn2O3−Co3O4/C catalyst.

show abstract

“…Therefore, direct deposition methods (i.e., electrochemical, electrospinning, electrospray, inkjet printing, nozzle jet printing, and laser scribing) and direct growth methods have recently become preferred for fabricating biosensors. Direct deposition and growth of nanomaterials onto electrode surfaces offers proper attachment of nanomaterials, promotes fast electron transfer, provides excellent stability, and avoids the use of binders [32][33][34][35][36].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Deposition of nanomaterials: A crucial step in biosensor fabrication

Ahmad

Wolfbeis

Hahn

et al. 2018

Materials Today Communications

178

View full text Add to dashboard Cite

 An easy, stable, and reproducible nanomaterial deposition/growth method is crucial for the realization of fabricated biosensor devices' performance, such as device stability, and reproducibility, as well as other sensing properties.  Key challenges for optimum deposition include stability, reproducibility, repeatability, and the ability of deposited nanomaterials to address these challenges is critiqued.

show abstract

High-performance binder-free supercapacitor electrode by direct growth of cobalt-manganese composite oxide nansostructures on nickel foam

Cited by 67 publications

References 40 publications

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Highly dispersed Mn₂O₃−Co₃O₄ nanostructures on carbon matrix as heterogeneous Fenton‐like catalyst

Deposition of nanomaterials: A crucial step in biosensor fabrication

Contact Info

Product

Resources

About

High-performance binder-free supercapacitor electrode by direct growth of cobalt-manganese composite oxide nansostructures on nickel foam

Cited by 67 publications

References 40 publications

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Nanogravel structured NiO/Ni foam as electrode for high-performance lithium-ion batteries

Highly dispersed Mn2O3−Co3O4 nanostructures on carbon matrix as heterogeneous Fenton‐like catalyst

Deposition of nanomaterials: A crucial step in biosensor fabrication

Contact Info

Product

Resources

About

Highly dispersed Mn₂O₃−Co₃O₄ nanostructures on carbon matrix as heterogeneous Fenton‐like catalyst