Co3O4 nanoparticles anchored on nitrogen-doped reduced graphene oxide as a multifunctional catalyst for H2O2 reduction, oxygen reduction and evolution reaction

Zhang, Tingting; He, Chuansheng; Sun, Fengzhan; Ding, Yiming; Wang, Manchao; Peng, Lin; Wang, Jiahui; Lin, Yuqing

doi:10.1038/srep43638

Cited by 110 publications

(73 citation statements)

References 52 publications

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“…It is indeed intriguing that the electrocatalytic performance of the Fe(np)/nC composite meets those of the state of the art Fe–N–C electrocatalysts. The Tafel analysis depicted in Figure a reveals a slope of 60–62 mV/dec, indicating a good control over O 2 mass transport and excluding possible artefacts often observed in thick film electrodes . Very interesting results have been reported for Fe‐based electrocatalysts based on either bulk or electrodeposited Fe obtained by pyrolysis of appropriate iron precursors or solvothermal approaches also using different C‐based supports, and for mixtures of Fe and other transition metals .…”

Section: Methodsmentioning

confidence: 79%

From Food Waste to Efficient Bifunctional Nonprecious Electrocatalyst

Hof

Valenti

Huang

et al. 2017

Chemistry A European J

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Synergy between graphitic nanocarbon, obtainable from food waste through cracking of biomethane, and iron oxide nanoparticles provides access to efficient bifunctional electro catalysts. Dissolution of potassium-intercalated graphitic nanocarbons yields graphenide solutions with calibrated, small lateral size-reduced graphenes that are used subsequently as reducing agents of iron metal salts. This results in the strong binding of small size (2-5 nm) nanoparticles on the carbon framework homogeneously within the composite material, accessibility of the catalytic centers, and good conductivity provided by the underlying carbon framework. The iron oxide nanocarbon electrocatalyst performances are highlighted by the overall overpotential of approximately 1 V needed to reach the benchmark threshold of 10 mA cm for the oxygen reduction reaction and the particular activity towards oxygen evolution reaction (η≈0.4 V at 10 mA cm ), comparable to that of the precious RuO and IrO catalysts. This iron oxide/nanocarbon electrocatalyst is versatile, remarkably active, stable, and truly sustainable.

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Section: Methodsmentioning

confidence: 79%

From Food Waste to Efficient Bifunctional Nonprecious Electrocatalyst

Hof

Valenti

Huang

et al. 2017

Chemistry A European J

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“…Groups of transition metal compounds that have electrochemical activity for HER and OER are often effective in the ORR reaction in many cases . Transition metal oxides are frequently used in ORR reactions with the help of rGO despite the disadvantages of their low conductivity and deficient active sites.…”

Section: Electrochemical O2 Reductionmentioning

confidence: 99%

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

et al. 2019

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There have been ever-growing demands to develop advanced electrocatalysts for renewable energy conversion over the past decade. As a promising platform for advanced electrocatalysts, reduced graphene oxide (rGO) has attracted substantial research interests in a variety of electrochemical energy conversion reactions. Its versatile utility is mainly attributed to unique physical and chemical properties, such as high specific surface area, tunable electronic structure, and the feasibility of structural modification and functionalization. Here, a comprehensive discussion is provided upon recent advances in the material preparation, characterization, and the catalytic activity of rGO-based electrocatalysts for various electrochemical energy conversion reactions (water splitting, CO 2 reduction reaction, N 2 reduction reaction, and O 2 reduction reaction). Major advantages of rGO and the related challenges for enhancing their catalytic performance are addressed. K E Y W O R D S

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“…In this respect, enormous viable noble-metal-free catalysts (Fe, Co, etc.) [6,7], or metal oxide [8], sulphide [9], nitride [10], carbide [11], metal-free carbon based materials [12] and nitrogen-doped carbon [13] have been actively pursued. Among above mentioned catalysts, the application of iron oxide as the electrocatalyst is…”

Section: Introductionmentioning

confidence: 99%

Cost-Effective and Facile Preparation of Fe2O3 Nanoparticles Decorated N-Doped Mesoporous Carbon Materials: Transforming Mulberry Leaf into a Highly Active Electrocatalyst for Oxygen Reduction Reactions

Zhang

Guan

et al. 2018

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Herein, a promising method to prepare efficient N-doped porous carbon-supported Fe 2 O 3 nanoparticles (Fe 2 O 3 /N-PCs) ORR electrocatalysts is presented. The porous carbon was derived from a biomass i.e., mulberry leaf through a cost-effective approach. The existence of diverse compounds containing carbon, oxygen, nitrogen and sulfur in mulberry leaf benefit the formation and uniform dispersion of Fe 2 O 3 nanoparticles (NPs) in the porous carbon. In evaluating the effects of the carbon support on the Fe 2 O 3 NPs towards the ORR, we found that the sample of Fe 2 O 3 /N-PCs-850 (Fe 2 O 3 /N-PCs obtained at 850 • C) with high surface area of 313.8 m 2 ·g −1 exhibits remarkably superior ORR activity than that of materials acquired under other temperatures. To be specific, the onset potential and reduction peak potential of Fe 2 O 3 /N-PCs-850 towards ORR are 0.936 V and 0.776 V (vs. RHE), respectively. The calculated number of electron transfer n for the ORR is 3.9, demonstrating a near four-electron-transfer process. Furthermore, it demonstrates excellent longtime stability and resistance to methanol deactivation compared with Pt/C catalyst. This study provides a novel design of highly active ORR electrocatalysts from low-cost abundant plant products.

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Co3O4 nanoparticles anchored on nitrogen-doped reduced graphene oxide as a multifunctional catalyst for H2O2 reduction, oxygen reduction and evolution reaction

Cited by 110 publications

References 52 publications

From Food Waste to Efficient Bifunctional Nonprecious Electrocatalyst

From Food Waste to Efficient Bifunctional Nonprecious Electrocatalyst

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

Cost-Effective and Facile Preparation of Fe2O3 Nanoparticles Decorated N-Doped Mesoporous Carbon Materials: Transforming Mulberry Leaf into a Highly Active Electrocatalyst for Oxygen Reduction Reactions

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