High oxygen-reduction activity and durability of nitrogen-doped graphene

Geng, Dongsheng; Chen, Ying; Chen, Yougui; Li, Yongliang; Li, Ruying; Sun, Xueliang; Ye, Siyu; Knights, Shanna

doi:10.1039/c0ee00326c

Cited by 1,183 publications

(748 citation statements)

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“…Recently, doping graphene with heteroatoms like nitrogen has been extensively investigated due to its excellent ORR activity and good durability. 4 Namely, 30 doping graphene with heteroatoms introduces defects in the adjacent sites, which alter asymmetry spin density and charge density, and consequently facilitate the ORR process. Furthermore, since the doped heteroatoms are usually covalently bonded to carbon atoms, their effect does not fade even during a 35 long time operation, which assures their great durability.…”

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“…Furthermore, since the doped heteroatoms are usually covalently bonded to carbon atoms, their effect does not fade even during a 35 long time operation, which assures their great durability. 4 Alternatively, a broad range of catalysts based on non-precious metal oxides (Fe 3 O 4 , Co 3 O 4 , etc.) have been actively pursued as ORR electrocatalysts because of their low cost, abundance and environmental compatibility.…”

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“…have been actively pursued as ORR electrocatalysts because of their low cost, abundance and environmental compatibility. 5 4 . 9 Here we demonstrate that a new type catalyst, composed of Mn 3 O 4 nanoparticles and nitrogen-doped graphene, shows a high 55 ORR activity, excellent durability and is fully tolerant to methanol.…”

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Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

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Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

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“…Nitrogen-doped graphene has also been reported to have high electrocatalytic activities and durability, because of its atom-thick 2D structure and high conductivity. [196][197][198] In addition to nitrogen-doped graphene, the composites of graphene materials and nitrogen-containing polymers have also been tested to be effective catalysts for oxygen reduction reaction (ORR). 113,114 We synthesized graphene/polymeric graphitic carbon nitrides (GCNs) by polymerizing melamine molecules adsorbed on CCG at a high temperature of 823 K. 113 The composite had a layered structure with an improved electrical conductivity over pristine GCN.…”

Section: Catalystsmentioning

confidence: 99%

Graphene/polymer composites for energy applications

Sun

Shi

2012

J Polym Sci B Polym Phys

236

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Graphene has wide potential applications in energyrelated systems, mainly because of its unique atom-thick twodimensional structure, high electrical or thermal conductivity, optical transparency, great mechanical strength, inherent flexibility, and huge specific surface area. For this purpose, graphene materials are frequently blended with polymers to form composites, especially when fabricating flexible devices. Graphene/polymer composites have been explored as electrodes of supercapacitors or lithium ion batteries, counter electrodes of dye-sensitized solar cells, transparent conducting electrodes and active layers of organic solar cells, catalytic electrodes, and polymer electrolyte membranes of fuel cells. In this review, we summarize the recent advances on the synthesis and applications of graphene/polymer composites for energy applications. The challenges and prospects in this field have also been discussed. V C 2012 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2013, 51, 231-253 KEYWORDS: composites; energy; fuel cell; graphene; lithium ion battery; redox polymers; solar cell; supercapacitor; synthesis INTRODUCTION Energy is one of the most important recent topics of concern to human society. To replace conventional fossil fuels, clean and renewable energies based on sunlight, wind, new chemicals, and biofuels are urgently demanded. Therefore, materials that can directly convert or store renewable energies are being extensively studied. Among them, graphene has recently attracted a great deal of attention because of its unique atom-thick two-dimensional (2D) structure 1,2 and excellent electrical, 2 thermal, 3 optical, and mechanical properties. 4,5 Graphene is a promising material for applications in various energy-related systems such as supercapacitors, 6-9 secondary batteries, 10-14 solar cells, 15-17 and fuel cells. [18][19][20] For this purpose, graphene materials are frequently blended with polymers to form functional composites. [21][22][23] The polymer component can improve the processability and/or flexibility of graphene materials, and also possibly provide them with new functions. To date, various graphene composites with insulating or conducting polymers (CPs) have been prepared through noncovalent 22 or covalent approaches. 24 They have also been applied as electrodes for supercapacitors and lithium ion batteries (LIBs), 25-29 counter electrodes of dye-sensitized solar cells (DSSCs), 15,30,31 and transparent conducting electrodes (TCEs) 32,33 or active layers of organic solar cells, 34 catalytic electrodes, and polymer electrolyte membranes of fuel cells. [35][36][37] This review focuses on summarizing the recent advances in the synthesis of graphene/polymer composites and their energy applications.

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“…The recent innovation in this subject, by using vertically aligned nitrogen containing carbon nanotubes as the catalysts of ORR, seems to launch on a very promising path to develop cathode catalysts comparable with conventional Pt-based catalysts [11]. Afterwards, various nitrogen doped carbon nanostructures (NCNs), including carbon nanotubes cup, mesoporous graphitic array, and graphene etc., were successfully applied as catalysts of ORR in alkaline medium [12][13][14][15]. Despite of these abundant achievements, there are still at least two key issues concerning these NCNs serving as commercial cathode catalysts of fuel cell or metal air.…”

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Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction

Zou

et al. 2012

Chin. Sci. Bull.

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It is of great significance in exploring alternative catalysts to platinum (Pt)-based materials for oxygen reduction reaction (ORR), because this reaction is invariably involved in various fuel cells and metal-air batteries. We herein reported the nitrogen doped graphene nanosheets (NGNSs) with pore volume of as high as 3.42 m 3 /g and investigated their potential application as ORR catalysts, it was demonstrated the NGNSs featured high activity, improved kinetics and excellent long-term stability for ORR. The NGNSs were successfully used as cathode catalysts of microbial fuel cells (MFCs) and performed even better than the commercial Pt/C (Pt 10%) catalysts at the maximum power output.nitrogen doped graphene, oxygen reduction reaction, cathode catalysts, microbial fuel cell Citation:Ci S Q, Wu Y M, Zou J P, et al. Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction.

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High oxygen-reduction activity and durability of nitrogen-doped graphene

Cited by 1,183 publications

References 29 publications

Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

Graphene/polymer composites for energy applications

Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction

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High oxygen-reduction activity and durability of nitrogen-doped graphene

Cited by 1,183 publications

References 29 publications

Mesoporous hybrid material composed of Mn3O4nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

Mesoporous hybrid material composed of Mn3O4nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

Graphene/polymer composites for energy applications

Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction

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Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction

Mesoporous hybrid material composed of Mn₃O₄nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction