NiO-rGO composite for supercapacitor electrode

Xu, Jinhui; Wu, Lin; Liu, Ying; Zhang, Junfeng; Liu, Jiaming; Shu, Shasha; Kang, Xiangdong; Song, Quangui; Liu, Dong; Huang, Feng; Hu, Yu

doi:10.1016/j.surfin.2019.100420

Cited by 69 publications

(26 citation statements)

References 20 publications

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“…For instance, NiO features a stable structure, high theoretical specic capacity (3750 F g −1 ) and low cost and is viewed as a powerful candidate to combine with V 4 C 3 T X to form heterostructures, which takes full advantage of the high conductivity of V 4 C 3 T X and large capacitance of NiO with a face-to-face contact of both components. 34,35 To prevent self-stacking, integration of the V 4 C 3 T X @NiO heterostructure into a 3D interlinked framework is a viable solution. 36 This 3D macroscopic structure can not only effectively impede self-restacking, but also provide abundant electrochemically active sites and fast ion/electron transport channels to dramatically boost the electrochemical reaction kinetics.…”

Section: Sustainablementioning

confidence: 99%

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A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

Chen

Geng

Zhu

et al. 2022

Sustainable Energy Fuels

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Section: Sustainablementioning

confidence: 99%

“…1a). 35 (d and e) SEM images of the V 4 C 3 T X @NiO-RGO heterostructured hydrogel. (f) XRD patterns of V 4 C 3 T X @NiO and V 4 C 3 T X @NiO-RGO.…”

Section: Morphology and Structure Characteristicsmentioning

confidence: 99%

A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

Chen

Geng

Zhu

et al. 2022

Sustainable Energy Fuels

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“…Expectedly, a large fraction of the diffraction pattern appeared to be dominated by Al Most probably, the iron impurities result from the ball milling process using stainless steel balls and milling jars, as the impurity level is similar for all three samples. However, the appearance of the characteristic reflections in the corresponding XRD patterns proves the existence of the respective oxides in the catalyst samples [38,[40][41][42][43].…”

Section: Crystal Structure Of Catalystsmentioning

confidence: 99%

Upcycling Waste Plastics into Multi-Walled Carbon Nanotube Composites via NiCo2O4 Catalytic Pyrolysis

et al. 2021

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In this work, multi-walled carbon nanotube composites (MWCNCs) were produced by catalytic pyrolysis of post-consumer plastics with aluminium oxide-supported nickel, cobalt, and their bimetallic (Ni/α–Al2O3, Co/α–Al2O3, and NiCo/α–Al2O3) oxide-based catalysts. The influence of catalyst composition and catalytic reaction temperature on the carbon yield and structure of CNCs were investigated. Different temperatures (800, 900, 950, and 1000 °C) and catalyst compositions (Ni, Co, and Ni/Co) were explored to maximize the yield of carbon deposited on the catalyst. The obtained results showed that at the same catalytic temperature (900 °C), a Ni/Co bimetallic catalyst exhibited higher carbon yield than the individual monometallic catalysts due to a better cracking capability on carbon-hydrogen bonds. With the increase of temperature, the carbon yield of the Ni/Co bimetallic catalyst increased first and then decreased. At a temperature of 950 °C, the Ni/Co bimetallic catalyst achieved its largest carbon yield, which can reach 255 mg g−1plastic. The growth of CNCs followed a “particle-wire-tube” mechanism for all studied catalysts. This work finds the potential application of complex oxide composite material catalysts for the generation of CNCs in catalytic pyrolysis of wasted plastic.

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“…It is expected that the incorporation of Cu 2 O between graphene nanosheets can enlarge the specific surface area, increase active sites and enhance the adsorption capacity of graphene, improving the affinity for gas molecules. Additionally, the presence of Cu 2 O can prevent the restacking of graphene sheets and overcome inferior gas selectivity of graphene [ 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cu2O-Modified Reduced Graphene Oxide for NO2 Sensors

Huang

Wang

Ying

et al. 2021

Sensors

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Nowadays, metal oxide semiconductors (MOS)-reduced graphene oxide (rGO) nanocomposites have attracted significant research attention for gas sensing applications. Herein, a novel composite material is synthesized by combining two p-type semiconductors, i.e., Cu2O and rGO, and a p-p-type gas sensor is assembled for NO2 detection. Briefly, polypyrrole-coated cuprous oxide nanowires (PPy/Cu2O) are prepared via hydrothermal method and combined with graphene oxide (GO). Then, the nanocomposite (rGO/PPy/Cu2O) is obtained by using high-temperature thermal reduction under Ar atmosphere. The results reveal that the as-prepared rGO/PPy/Cu2O nanocomposite exhibits a maximum NO2 response of 42.5% and is capable of detecting NO2 at a low concentration of 200 ppb. Overall, the as-prepared rGO/PPy/Cu2O nanocomposite demonstrates excellent sensitivity, reversibility, repeatability, and selectivity for NO2 sensing applications.

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NiO-rGO composite for supercapacitor electrode

Cited by 69 publications

References 20 publications

A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

Upcycling Waste Plastics into Multi-Walled Carbon Nanotube Composites via NiCo2O4 Catalytic Pyrolysis

Synthesis of Cu2O-Modified Reduced Graphene Oxide for NO2 Sensors

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NiO-rGO composite for supercapacitor electrode

Cited by 69 publications

References 20 publications

A high-performance supercapacitor based on free-standing V4C3TX@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

A high-performance supercapacitor based on free-standing V4C3TX@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

Upcycling Waste Plastics into Multi-Walled Carbon Nanotube Composites via NiCo2O4 Catalytic Pyrolysis

Synthesis of Cu2O-Modified Reduced Graphene Oxide for NO2 Sensors

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A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes

A high-performance supercapacitor based on free-standing V₄C₃T_X@NiO-reduced graphene oxide core–shell hierarchical heterostructured hydrogel electrodes