N-doped mesoporous carbon nanosheets obtained by pyrolysis of a chitosan–melamine mixture for the oxygen reduction reaction in alkaline media

Rybarczyk, Maria K.; Lieder, Marek; Jablonska, Milena A.

doi:10.1039/c5ra05725f

Cited by 78 publications

(65 citation statements)

References 57 publications

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“…,60,61,82,83,84 however, to our knowledge no such comparative study on oxygen reduction behaviour on CM-and DCDA-derived NCNTs has been reported as yet. Similar tendency has been reported by Rybarczyk et al recently 85. The LSV behaviour of the ORR on the NCNT-CM and NCNT-DCDA catalysts is shown inFigures 8a and 8b, respectively.…”

supporting

confidence: 88%

Enhanced electrocatalytic activity of nitrogen-doped multi-walled carbon nanotubes towards the oxygen reduction reaction in alkaline media

et al. 2015

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In this work multi-walled carbon-nanotubes (MWCNTs) were doped with nitrogen using cyanamide (CM) or dicyandiamide (DCDA). To incorporate nitrogen into the CNT structure, high-temperature pyrolysis in an inert atmosphere was performed. For surface characterisation of nitrogen-doped CNTs (NCNTs) X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used. According to the results of XPS analysis, nitrogen was successfully incorporated into the carbon nanotube network. The electrocatalytic activity of NCNT catalysts for oxygen reduction reaction (ORR) in alkaline media was examined using the rotating disk electrode (RDE) and linear sweep voltammetry (LSV) measurements. The NCNT-DCDA material showed a better ORR performance than the NCNT-CM catalyst. The RDE results reveal that the NCNT materials studied could be considered as interesting alternatives to Pt-based catalysts in alkaline membrane fuel cells.

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confidence: 88%

Enhanced electrocatalytic activity of nitrogen-doped multi-walled carbon nanotubes towards the oxygen reduction reaction in alkaline media

et al. 2015

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“…[118] Figure 14d shows an expanded interlayer spacing of about 0.359 nm. [118] Figure 14d shows an expanded interlayer spacing of about 0.359 nm.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…[132][133][134] Basing on this point, Wan et al prepared TiS 2 intercalated by organic polymer, which demonstrated an electrical conductivity of 790 S cm −1 and a power factor of 0.45 mW m −1 K −2 . [118] Copyright 2015, Royal Society of Chemistry. a) TEM image of NG-NiCo.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Opening Two‐Dimensional Materials for Energy Conversion and Storage: A Concept

Xue

Zhang

Wang

et al. 2017

Advanced Energy Materials

362

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The development of two‐dimensional (2D) materials is experiencing a renaissance since the adventure of graphene. 2D materials typically exhibit strong in‐plane covalent bonding and weak out‐of‐plane van der Waals interactions through the interlayer gap. Opening 2D materials is an effective way to alter the physical and chemical properties, such as band gap, conductivity, optical property, thermoelectric property, photovoltaic property and superconductivity. A larger interlayer distance means more accessible active sites for catalysis, an ion‐accessible surface in the interlayer space, which may greatly enhance the performance of 2D materials for energy conversion and storage. Moreover, opening 2D materials by intercalation can change the band filling state and the Fermi level. This review mainly focuses on the opening of 2D materials and their subsequent applications in energy conversion and storage fields, expecting to promote the development of such a new class of materials, namely expanded 2D materials. The exciting progresses of these expanded materials made in both energy conversion and storage devices including solar cells, thermoelectric devices, electrocatalyst, supercapacitors and rechargeable batteries, is presented and discussed in depth. Furthermore, prospects and further developments in these exciting fields of the expanded 2D materials are also commented.

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“…The NG film tended to agglomerate into a bulk graphite layer with a decreasing GO to melamine ratio. During the doping process of GO with melamine, melamine was decomposed into other nitrogen species such as carbon nitride, cyanamide and melem with the release of ammonia gas at elevated temperature [21,22]. Decreasing the ratio of GO to melamine yielded higher amounts of these condensed nitrogen species, with the evolution of a large excess of ammonia gas.…”

Section: Physical Characterizationmentioning

confidence: 99%

The effect of varying N/C ratios of nitrogen precursors during non-metal graphene catalyst synthesis

Soo

Loh

Mohamad

et al. 2017

International Journal of Hydrogen Energy

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N-doped mesoporous carbon nanosheets obtained by pyrolysis of a chitosan–melamine mixture for the oxygen reduction reaction in alkaline media

Abstract: Simple thermal decomposition of low-cost precursors in an inert atmosphere leads to mesoporous nitrogen-doped carbon nanosheets with electrocatalytic activity towards ORR.

Cited by 78 publications

References 57 publications

Enhanced electrocatalytic activity of nitrogen-doped multi-walled carbon nanotubes towards the oxygen reduction reaction in alkaline media

Enhanced electrocatalytic activity of nitrogen-doped multi-walled carbon nanotubes towards the oxygen reduction reaction in alkaline media

Opening Two‐Dimensional Materials for Energy Conversion and Storage: A Concept

The effect of varying N/C ratios of nitrogen precursors during non-metal graphene catalyst synthesis

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