Porous FeNi oxide nanosheets as advanced electrochemical catalysts for sustained water oxidation

Long, Xia; Ma, Zuju; Han, Yu; Gao, Xiangyun; Pan, Xiaoyang; Chen, Xuxing; Yang, Shihe; Yi, Zhiguo

doi:10.1039/c6ta05907d

Cited by 61 publications

(41 citation statements)

References 53 publications

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“…These bimetallic nanocomposites have been also used for the degradation of organic pollutants in groundwater [14]. Luadthong et al used copperferrite/spinal-oxide catalyst for methnolysis of palm oil [15]. Porous FeNi oxide nano sheets have been studied as a catalyst for groundwater contaminant treatment [16].…”

Section: Introductionmentioning

confidence: 99%

Efficient transformation in characteristics of cations supported-reduced graphene oxide nanocomposites for the destruction of trichloroethane

Farooq

Danish

Brusseau

et al. 2017

Applied Catalysis A: General

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Experiments were conducted to investigate the use of graphene-oxide supported metallic nanocomposites for improving the degradation of trichloroethane (TCA) by sodium percarbonate (SPC). Two methods of production, chemical reduction (CR) and solvo-thermal (ST), were tested for preparation of single (Fe) and binary (Fe-Cu) nanocomposites supported by reduced graphene oxide (rGO). A variety of analytical techniques including N2 adsorption Brunauer-Emmett-Teller (BET), x-ray diffraction (XRD), fourier-transfrom infrared spectroscopy (FTIR), and transmisison electron microscopy (TEM) were applied to characterize the physicochemical and microstructural properties of the synthesized nanocomposites. The characterization indicated that the CR method produced nanocomposites that comprised only mesoporous structure. Conversely, both micro and mesoporous structures were present for samples produced with the ST method. The synthesized single and bimetallic composites produced from the ST method showed higher surface areas, i.e. 93.6 m2/g and 119.2 m2/g as compared to the ones synthesized via the CR method, i.e. 13.8 m2/g and 38.0 m2/g respectively. The results of FTIR and XRD analyses confirmed that the ST method produced highly crystalline nanocomposites. SEM and TEM analysis validated that metallic particles with definite morphology well distributed on the surface of rGO. X-ray photoelectron spectroscopy (XPS) analysis confirmed the homogeneity nanocomposites and occurrence of variation in copper oxidation states during degradation process. EDS mapping validate the homogeneous distribution of Cu and Fe at reduced graphene oxide surface. The Fe-Cu/rGO (ST) activated SPC system effectively degraded TCA (92%) in 2.5 h at low nanocomposite dose compared to the Fe-Cu/rGO (CR) and only Fe, for which the maximum degradation efficiencies achieved were 81% and 34%. In conclusion, excellent catalytic characteristics were observed for the ST-synthesized single and bimetallic (Fe/rGO, Fe-Cu/rGO) catalysts. These catalysts were successful in improving the degradation of TCA via activated SPC.

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Section: Introductionmentioning

confidence: 99%

Efficient transformation in characteristics of cations supported-reduced graphene oxide nanocomposites for the destruction of trichloroethane

Farooq

Danish

Brusseau

et al. 2017

Applied Catalysis A: General

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“…Transition metal oxides and hydroxides, especially layered double hydroxides (LDH), have been under intensive scrutiny as promising alternatives for renewable energy storage and conversion systems since they offer many advantages such as cost-effective, earth-abundant and environmental friendliness. [1][2][3][4][5][6][7][8][9] Up to now, a wide variety of LDH and its derivative materials have been synthesized and applied in supercapacitors, [10][11][12] electrochemical catalysis, [13][14][15][16] Li-ion batteries. [17][18][19] However, developing mild but efficient synthesis approaches of LDHs without deteriorate their catalytic performance are still great challenges.…”

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confidence: 99%

Room-Temperature Synthesis FeNiCo Layered Double Hydroxide as an Excellent Electrochemical Water Oxidation Catalyst

Gao

Pan

Long

et al. 2017

J. Electrochem. Soc.

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Layered double hydroxides (LDH) have attracted tremendous attention in a variety of areas, including catalysis, energy storage, drug delivery, etc. Herein, we report a simple coprecipitation method to prepare highly active electrochemical catalysts of FeNiCo LDH at room temperature. In alkaline media, the as-obtained FeNi2Co2 LDH shows superior electrocatalytic activity toward water oxidation with an overpotential of 232 mV at 10 mA/cm2 and a low Tafel slope of 48 mV/dec, comparable to most of the reported noble-metal free OER catalysts. The suitable electronic structures as well as reduced charge transfer resistance that promote the electrons transfer during the OER process are proposed to be the two critical factors that lower the overpotential of the catalytic reaction.

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“…Another interesting example is provided by porous FeNi oxide nanosheets, used as advanced electrochemical catalysts for water oxidation . The topotactic transformation of the LDH ternary precursor, FeNi‐LDH, is used to form a layered Fe‐doped NiO oxide which displays improved OER performance: a low overpotential of 213 mV at 10 mA cm −2 , a small Tafel slope of 32 mV decade −1 , and long‐term stability.…”

Section: D Nanostructured Oxide Filmsmentioning

confidence: 99%

“…The topotactic transformation of the LDH ternary precursor, FeNi‐LDH, is used to form a layered Fe‐doped NiO oxide which displays improved OER performance: a low overpotential of 213 mV at 10 mA cm −2 , a small Tafel slope of 32 mV decade −1 , and long‐term stability. Interestingly, Long et al reported that the FeNi‐LDH precursor shows only slightly poorer performance.…”

Section: D Nanostructured Oxide Filmsmentioning

confidence: 99%

2D Oxide Nanomaterials to Address the Energy Transition and Catalysis

et al. 2018

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2D oxide nanomaterials constitute a broad range of materials, with a wide array of current and potential applications, particularly in the fields of energy storage and catalysis for sustainable energy production. Despite the many similarities in structure, composition, and synthetic methods and uses, the current literature on layered oxides is diverse and disconnected. A number of reviews can be found in the literature, but they are mostly focused on one of the particular subclasses of 2D oxides. This review attempts to bridge the knowledge gap between individual layered oxide types by summarizing recent developments in all important 2D oxide systems including supported ultrathin oxide films, layered clays and double hydroxides, layered perovskites, and novel 2D-zeolite-based materials. Particular attention is paid to the underlying similarities and differences between the various materials, and the subsequent challenges faced by each research community. The potential of layered oxides toward future applications is critically evaluated, especially in the areas of electrocatalysis and photocatalysis, biomass conversion, and fine chemical synthesis. Attention is also paid to corresponding novel 3D materials that can be obtained via sophisticated engineering of 2D oxides.

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Porous FeNi oxide nanosheets as advanced electrochemical catalysts for sustained water oxidation

Abstract: FeNi-O porous nanosheets were synthesized and they exhibited advanced OER performance that was investigated experimentally and theoretically.

Cited by 61 publications

References 53 publications

Efficient transformation in characteristics of cations supported-reduced graphene oxide nanocomposites for the destruction of trichloroethane

Efficient transformation in characteristics of cations supported-reduced graphene oxide nanocomposites for the destruction of trichloroethane

Room-Temperature Synthesis FeNiCo Layered Double Hydroxide as an Excellent Electrochemical Water Oxidation Catalyst

2D Oxide Nanomaterials to Address the Energy Transition and Catalysis

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