2014
DOI: 10.1002/adma.201400570
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Bicontinuous Nanoporous N‐doped Graphene for the Oxygen Reduction Reaction

Abstract: Bicontinuous nanoporous N-doped graphene with tunable pore size is synthesized by nanoporous Ni-based chemical vapor deposition. The novel 3D graphene material shows an outstanding catalytic activity towards the oxygen reduction reaction with a low onset potential of -0.08 V and a high kinetic current density of 8.2 mA cm(-2) at -0.4 V.

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Cited by 266 publications
(232 citation statements)
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“…Yet, presently designed graphene foams suffers from macroscopic dimensions and a severe miniaturization (by at least two orders of magnitude) may be required to truly benefi t from the wonder properties of graphene. [ 536,675,[681][682][683] Finally, it should be mentioned that caution must be exercised with respect to utilizing graphene or graphene analogues derivatives for energy storage or other electrochemical devices and applications. [ 684,685 ] Radich et al have recently demonstrated that rGO is not suitable platform for TiO 2 based photocatalysis.…”
Section: Graphene-inside Batteries and Capacitorsmentioning
confidence: 99%
“…Yet, presently designed graphene foams suffers from macroscopic dimensions and a severe miniaturization (by at least two orders of magnitude) may be required to truly benefi t from the wonder properties of graphene. [ 536,675,[681][682][683] Finally, it should be mentioned that caution must be exercised with respect to utilizing graphene or graphene analogues derivatives for energy storage or other electrochemical devices and applications. [ 684,685 ] Radich et al have recently demonstrated that rGO is not suitable platform for TiO 2 based photocatalysis.…”
Section: Graphene-inside Batteries and Capacitorsmentioning
confidence: 99%
“…However, their scarcity, high cost, and poor stability hinder the bulk applications [53]. The emergence of metalfree carbon catalyst provides a promising alternative for ORR electrocatalysis [15,16,50,51,[53][54][55][56][57][58][59][60][61][62]. In this contribution, ORR was selected as the probe reaction to explore the electrocatalytic performance of unstacked DTG and NDTG.…”
Section: 4mentioning
confidence: 99%
“…The extraordinary ORR performance of NDTG was attributed to the following aspects: (1) with the well dispersion of 3.02 at.% nitrogen atoms into the unstacking conductive NDTG skeleton, the ORR active sites originated from the doping of nitrogen can be exhibited at the interfaces between the electrocatalysts and electrolyte [15,16,50,51,[54][55][56][57]; (2) compared with the stacked graphene in NG with a limited surface area of 189 m 2 g À1 , the unstacking NDTG offer large surface area of 1318 m 2 g À1 , which provided the possibility to full exposure of the active sites; (3) the NDTG have a hydrophilic surface and interconnected channels, which facilitates the rapid diffusion of oxygen feedstock and water products; (4) in contrast to Pt/C catalyst, the ORR activity of the metalfree carbon based catalyst exhibited resistance to crossover effect; (5) the NDTG is composed of highly stable graphene with good mechanical properties and robust electron pathways, improving the long-term durability. The unstacked graphene can be further improved by rational design of catalyst …”
Section: 4mentioning
confidence: 99%
“…The presence of adequate reactive sites in combination with novel structural design makes them attractive metal-free catalysts. To achieve the aforementioned merits, various heteroatom-doped 3D nanocarbon materials, such as N-doped CNT aerogels [37], nanoporous N-doped graphene [55], N, P-doped porous carbon, and doped graphene/CNT hybrid materials have been developed as high-performance ORR catalysts (Figure 4) [56,57]. be favored to have abundant accessible active sites for implementing reaction, good conductivity for charge transfer, and suitable porous structure for mass transport.…”
Section: D Heteroatom-doped Nanocarbon Electrocatalysts For Orrmentioning
confidence: 99%