Nitrogen-doped carbon shell structure derived from natural leaves as a potential catalyst for oxygen reduction reaction

Gao, Shuyan; Wei, Xianjun; Fan, Hao; Li, Lingyu; Geng, Keran; Wang, Jianji

doi:10.1016/j.nanoen.2015.02.031

Cited by 139 publications

(87 citation statements)

References 58 publications

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“…Similarly,t he conventional iron-nitrogen codoped carbon (Fe-N-C) produced by pyrolysis of commercial carbon black and pure FePc) [19] showed in homogeneously distributed Fe aggregates on the carbon substrate ( Figure S5c). [21] To measure the iron and carbon crystalline structures,wefurther performed powder X-ray diffraction (XRD). Compared to the HPC support, the SA-Fe-HPC and NP-Fe-HPC exhibited ad ecreased BET surface area attributable to the adsorption of FePc/Pc complex and pure FePc,r espectively.…”

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confidence: 83%

Efficient Oxygen Reduction Reaction (ORR) Catalysts Based on Single Iron Atoms Dispersed on a Hierarchically Structured Porous Carbon Framework

et al. 2018

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Single Fe atoms dispersed on hierarchically structured porous carbon (SA-Fe-HPC) frameworks are prepared by pyrolysis of unsubstituted phthalocyanine/iron phthalocyanine complexes confined within micropores of the porous carbon support. The single-atom Fe catalysts have aw elldefined atomic dispersion of Fe atoms coordinated by Nligands on the 3D hierarchically porous carbon support. These SA-Fe-HPC catalysts are comparable to the commercial Pt/C electrode even in acidic electrolytes for oxygen reduction reaction (ORR) in terms of the ORR activity (E 1/2 = 0.81 V), but have better long-term electrochemical stability (7 mV negative shift after 3000 potential cycles) and fuel selectivity. In alkaline media, the SA-Fe-HPC catalysts outperform the commercial Pt/C electrode in ORR activity (E 1/2 = 0.89 V), fuel selectivity,a nd long-term stability (1 mV negative shift after 3000 potential cycles). Thus,t hese nSA-Fe-HPCs are promising non-platinum-group metal ORR catalysts for fuel-cell technologies.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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confidence: 83%

Efficient Oxygen Reduction Reaction (ORR) Catalysts Based on Single Iron Atoms Dispersed on a Hierarchically Structured Porous Carbon Framework

et al. 2018

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“…The surface contents of N and P in the catalysts were considerably higher than those in the bulk, indicating that N and P atoms were preferentially distributed on the surface of the catalysts. Noticeable amounts of N and P found in BC-HT indicate that N and P inherently contained in bamboo precursors were successfully incorporated into the carbon structure [30,31,32]. Compared with BC-NP-HT, BC-HT-NP-HT had higher N and P contents.…”

Section: Physical Characterization Of the Catalystsmentioning

confidence: 99%

Bamboo charcoal as a cost-effective catalyst for an air-cathode of microbial fuel cells

Yang

et al. 2017

Electrochimica Acta

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“…[24,27] As one of the appropriate support materials, porous carbon with numerous functional groups can offer large surface area, which could favor the fine dispersion of Fe species and prevent the Fe aggregation for a long-term operation. [28][29][30] Moreover, for tuning the coordination of Fe atoms, the traditional methods mainly focus on introducing the reacting gas atmosphere (e.g., NH 3 ) during the pyrolysis treatment, or adding extra ligand species (e.g., pyridine and imidazole) for Fe atoms. [21,24,31] Nevertheless, it still remains a large challenge to prepare single-atomic Fe catalysts by a facial and effective method for their commercial and technological feasibility.…”

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confidence: 99%

Biomass Derived N-Doped Porous Carbon Supported Single Fe Atoms as Superior Electrocatalysts for Oxygen Reduction

Zhang

Gao

Dou

et al. 2017

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Exploring sustainable and high-performance electrocatalysts for the oxygen reduction reaction (ORR) is the crucial issue for the large-scale application of fuel cell technology. A new strategy is demonstrated to utilize the biomass resource for the synthesis of N-doped hierarchically porous carbon supported single-atomic Fe (SA-Fe/NHPC) electrocatalyst toward the ORR. Based on the confinement effect of porous carbon and high-coordination natural iron source, SA-Fe/NHPC, derived from the hemin-adsorbed bio-porphyra-carbon by rapid heat-treatment up to 800 °C, presents the atomic dispersion of Fe atoms in the N-doped porous carbon. Compared with the molecular hemin and nanoparticle Fe samples, the as-prepared SA-Fe/NHPC exhibits a superior catalytic activity (E = 0.87 V and J = 4.1 mA cm , at 0.88 V), remarkable catalytic stability (≈1 mV negative shift of E , after 3000 potential cycles), and outstanding methanol-tolerance, even much better than the state-of-the-art Pt/C catalyst. The sustainable and effective strategy for utilizing biomass to achieve high-performance single-atom catalysts can also provide an opportunity for other catalytic applications in the atomic scale.

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Nitrogen-doped carbon shell structure derived from natural leaves as a potential catalyst for oxygen reduction reaction

Cited by 139 publications

References 58 publications

Efficient Oxygen Reduction Reaction (ORR) Catalysts Based on Single Iron Atoms Dispersed on a Hierarchically Structured Porous Carbon Framework

Efficient Oxygen Reduction Reaction (ORR) Catalysts Based on Single Iron Atoms Dispersed on a Hierarchically Structured Porous Carbon Framework

Bamboo charcoal as a cost-effective catalyst for an air-cathode of microbial fuel cells

Biomass Derived N-Doped Porous Carbon Supported Single Fe Atoms as Superior Electrocatalysts for Oxygen Reduction

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