Nitrogen-doped graphene aerogels for highly efficient toluene removal from water

Nassar, Gaelle; Youssef, S.; Habchi, Roland

doi:10.1007/s41127-022-00049-9

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…The broad character indicates the presence of amorphous carbon. However, it is likely not a pure phase but can also include graphite oxide [39].…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

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Magnetron Sputtering as a Versatile Tool for Precise Synthesis of Hybrid Iron Oxide–Graphite Nanomaterial for Electrochemical Applications

Käufer,

Quade,

Kruth

et al. 2024

Nanomaterials

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Iron oxide nanomaterials are promising candidates for various electrochemical applications. However, under operating conditions high electric resistance is still limiting performance and lifetime. By incorporating the electronically conductive carbon into a nanohybrid, performance may be increased and degeneration due to delamination may be prevented, eliminating major drawbacks. For future applications, performance is an important key, but also cost-effective manufacturing suitable for scale-up must be developed. A possible approach that shows good potential for up-scale is magnetron sputtering. In this study, a systematic investigation of iron oxides produced by RF magnetron sputtering was carried out, with a focus on establishing correlations between process parameters and resulting structural properties. It was observed that increasing the process pressure was favourable with regard to porosity. Over the entire pressure range investigated, the product consisted of low-crystalline Fe3O4, as well as Fe2O3 as a minor phase. During sputtering, a high degree of graphitisation of carbon was achieved, allowing for sufficient electronic conductivity. By means of a new alternating magnetron sputtering process, highly homogeneous salt-and-pepper-type arrangements of both nanodomains, iron oxide and carbon were achieved. This nano-containment of the redox-active species in a highly conductive carbon domain improves the material’s overall conductivity, while simultaneously increasing the electrochemical stability by 44%, as confirmed by cyclic voltammetry.

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“…The broad character indicates the presence of amorphous carbon. However, it is likely not a pure phase but can also include graphite oxide [39].…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

“…The broad character indicates the presen amorphous carbon. However, it is likely not a pure phase but can also include grap oxide [39]. The second peak is the G peak, which typically appears around 1580 cm −1 and is caused by sp2 site vibrations, in both chains and ring structures [38].…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

Magnetron Sputtering as a Versatile Tool for Precise Synthesis of Hybrid Iron Oxide–Graphite Nanomaterial for Electrochemical Applications

Käufer,

Quade,

Kruth

et al. 2024

Nanomaterials

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Carbon Surface Chemistry: New Insight into the Old Story

Ding

Qiao

2022

Advanced Materials

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The enormous complexity of the carbon material family has provoked a phenomenological approach to develop its potential in different applications. Although the electronic, chemical, mechanical, and magnetic properties of carbon materials have been widely discussed based on defect control engineering, there is still a lack of fundamental understanding of the carbon surface chemistry, which leads to many controversial conclusions. Here, by analyzing various defects on carbon surface, some commonly neglected aspects and misunderstandings in this field are pointed out, clarifying how surface chemistry affects the chemical behaviors of carbon in some specific chemical reactions. With this full‐scale consideration of the carbon surface chemistry, the behaviors of carbon materials with various functions can be well defined, which is indispensable for their scalable applications. Perspectives on future developments of carbon surface chemistry are also provided to enable practically accessible design of advanced carbon in those applications.

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Facile synthesis of hollow carbon fiber/carbon quantum dots composite aerogels for oil sorption

Ibarra Torres,

Serrano Quezada,

Kharissova

et al. 2023

Geoenergy Science and Engineering

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Nitrogen-doped graphene aerogels for highly efficient toluene removal from water

Cited by 4 publications

References 24 publications

Magnetron Sputtering as a Versatile Tool for Precise Synthesis of Hybrid Iron Oxide–Graphite Nanomaterial for Electrochemical Applications

Magnetron Sputtering as a Versatile Tool for Precise Synthesis of Hybrid Iron Oxide–Graphite Nanomaterial for Electrochemical Applications

Carbon Surface Chemistry: New Insight into the Old Story

Facile synthesis of hollow carbon fiber/carbon quantum dots composite aerogels for oil sorption

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