Nitrogen doped graphene nanoplatelets as catalyst support for oxygen reduction reaction in proton exchange membrane fuel cell

Jafri, R. Imran; Rajalakshmi, N.; Ramaprabhu, Sundara

doi:10.1039/c0jm00467g

Cited by 583 publications

(102 citation statements)

References 32 publications

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“…The N-configurations in Figure 8 have been recognized computationally by Li et al [85]. The presence of nitrogen atoms in graphene at edges and in basal planes also influences the local electronic structures, enhancing binding with ions in solution [86]. As a result, more ions can be accommodated on the electrode surface for a given electrode surface area.…”

Section: Supercapacitorsmentioning

confidence: 93%

Porous graphene: Properties, preparation, and potential applications

et al. 2012

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Graphene has recently emerged as an important and exciting material. Inspired by its outstanding properties, many researchers have extensively studied graphene-related materials both experimentally and theoretically. Porous graphene is a collection of graphene-related materials with nanopores in the plane. Porous graphene exhibits properties distinct from those of graphene, and it has widespread potential applications in various fields such as gas separation, hydrogen storage, DNA sequencing, and supercapacitors. In this review, we summarize recent progress in studies of the properties, preparation, and potential applications of porous graphene, and show that porous graphene is a promising material with great potential for future development.graphene, porous graphene, electronic structure, gas separation, DNA sequencing Citation:Xu P T, Yang J X, Wang K S, et al. [9] have made the preparation of large-area graphene feasible. The most intriguing aspect of graphene is its extraordinary properties. Graphene, which is constructed by strong sp 2 covalent bonds, is believed to be the strongest material ever measured [10]. Experiments have revealed that graphene exhibits a high ambipolar electric-field effect at room temperature, better conductivity than any other known material [3], and many other novel properties, including room-temperature quantum Hall effects, mass-less Dirac electrons near the K point, and high mobility of carriers (10 6 m s −1 , close to the speed of light) [11][12][13]. All these properties distinguish graphene from ordinary materials, and make graphene an ideal candidate for the manufacture of electronic devices. To develop a full understanding of its nature and realize the full potential of graphene, extensive investigations have proceeded in various directions. For instance, the electronic and magnetic properties of graphene can be modified by hydrogenation [14] and doping [15]. Another research area, porous graphene, has also attracted increasing attention recently. Porous graphene is a collection of graphene-related materials with nanopores in the plane. Depending on the production techniques used, the pore size ranges from atomic precision to nanoscale. As a result of the nanopores in the graphene plane, porous graphene exhibits properties distinct from those of pristine graphene, leading to its potential applications in numerous

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Section: Supercapacitorsmentioning

confidence: 93%

Porous graphene: Properties, preparation, and potential applications

et al. 2012

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“…It is indicated that there are four nitrogen functional groups in nitrogen-doped carbon, consisting of cyano N (397.8eV), pyridinic N (399.0eV), pyrrolic N (401.1eV), and quaternary N (403.2eV). 29 located on the edge of graphene plane and CNTs endpoint. Pyrrolic N bonded to two carbon atoms forms the π system with two electrons.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical properties of Ni(OH)2/MnO2 on hybrid N-doped carbon structure as high-performance electrode material

Zhu

2018

AIP Advances

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Effect of conductive additives to gel electrolytes on activated carbon-based supercapacitors AIP Advances 5, 097171 (2015); https://doi.org/10.1063/1.4931956 AIP ADVANCES 8, 075223 (2018) A hierarchical hybrid architectures are very crucial through assembly of various carbon-based materials such as graphene and carbon nanotubes to achieve highperformance supercapacitors for energy storage. In this study, we propose a new pyrolysis method to prepare nitrogen-doped hybrid carbon structure (N-HCS). Then, the binary metal hydroxides Ni(OH) 2 /oxide MnO 2 deposited on N-HCS with multifunctionality between them, exhibits an excellent specific capacitance as high as1563F/g at 1A/g in 1mol/L Na 2 SO 4 solution and stable cycling performance remaining 80% of the initial specific capacitance after 1000 cycles at current density of 10A/g. This work paves a pathway to prepare electrode materials of Ndoped carbon structure/Ni(OH) 2 /MnO 2 with high performance for applying in energy storage and conversion. © 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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“…Improved electrocatalytict activity was observed due to the small size, uniform dispersion and a high electrochemical active surface area of the nanocomposites. Recently, more studies on NG-or N-rGO-supported Pt electrocatalysts have also been reported; all these results demonstrate the significant function of N doping in producing highly efficient ORR electrocatalysts [128][129][130].…”

Section: Ng As Support Materials For Orrmentioning

confidence: 98%

Nitrogen-Doped Carbon Nanotube and Graphene Materials for Oxygen Reduction Reactions

et al. 2015

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Nitrogen-doped carbon materials, including nitrogen-doped carbon nanotubes (NCNTs) and nitrogen-doped graphene (NG), have attracted increasing attention for oxygen reduction reaction (ORR) in metal-air batteries and fuel cell applications, due to their optimal properties including excellent electronic conductivity, 4e − transfer and superb mechanical properties. Here, the recent progress of NCNTs-and NG-based catalysts for ORR is reviewed. Firstly, the general preparation routes of these two N-doped carbon-allotropes are introduced briefly, and then a special emphasis is placed on the developments of both NCNTs and NG as promising metal-free catalysts and/or catalyst support materials for ORR. All these efficient ORR electrocatalysts feature a low cost, high durability and excellent performance, and are thus the key factors in accelerating the widespread commercialization of metal-air battery and fuel cell technologies. OPEN ACCESSCatalysts 2015, 5 1575

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Nitrogen doped graphene nanoplatelets as catalyst support for oxygen reduction reaction in proton exchange membrane fuel cell

Cited by 583 publications

References 32 publications

Porous graphene: Properties, preparation, and potential applications

Porous graphene: Properties, preparation, and potential applications

Electrochemical properties of Ni(OH)2/MnO2 on hybrid N-doped carbon structure as high-performance electrode material

Nitrogen-Doped Carbon Nanotube and Graphene Materials for Oxygen Reduction Reactions

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