Boron-doped graphene as promising support for platinum catalyst with superior activity towards the methanol electrooxidation reaction

Sun, Yanchun; Du, Chunyu; An, Meichen; Du, Lei; Tan, Qiang; Liu, Chuntao; Gao, Yunzhi; Yin, Geping

doi:10.1016/j.jpowsour.2015.09.046

Cited by 81 publications

(39 citation statements)

References 50 publications

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“…5 eV (C-C) corresponds to sp 3 carbon due to the grain boundaries and defects in the lattice structure52. The C1s spectrum also shows a peak located at 284.1 eV, which is assigned to C-B bond indicating the formation of boron– carbon bonds in the BG lattice40. The other peaks located at 286.3 eV, 287.7 eV, and 288.8 eV can be attributed to the hydroxyl groups and boron oxycarbides respectively37.…”

Section: Resultsmentioning

confidence: 99%

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Boron doped graphene wrapped silver nanowires as an efficient electrocatalyst for molecular oxygen reduction

Nair

Veettil

Kalarikkal

et al. 2016

Sci Rep

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Metal nanowires exhibit unusually high catalytic activity towards oxygen reduction reaction (ORR) due to their inherent electronic structures. However, controllable synthesis of stable nanowires still remains as a daunting challenge. Herein, we report the in situ synthesis of silver nanowires (AgNWs) over boron doped graphene sheets (BG) and demonstrated its efficient electrocatalytic activity towards ORR for the first time. The electrocatalytic ORR efficacy of BG-AgNW is studied using various voltammetric techniques. The BG wrapped AgNWs shows excellent ORR activity, with very high onset potential and current density and it followed four electron transfer mechanism with high methanol tolerance and stability towards ORR. The results are comparable to the commercially available 20% Pt/C in terms of performance.

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Section: Resultsmentioning

confidence: 99%

“…Further, Yongrong et al . evidenced that the activity of uniformly loaded Pt nanoparticles over BG towards methanol oxidation reaction is higher than that of Pt/G nanoparticles and Pt/C nanoparticles40.…”

mentioning

confidence: 93%

Boron doped graphene wrapped silver nanowires as an efficient electrocatalyst for molecular oxygen reduction

Nair

Veettil

Kalarikkal

et al. 2016

Sci Rep

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“…[17] Although Pt-based catalysts exhibit excellent electrochemical activity for methanol oxidation, their high cost and poor tolerance to CO poisoning have hampered their practical applications. [18] It has been recently revealed that Pt-based catalystsa nchored on Ndoped graphene can homogeneously disperse metal NPs and accelerate the destruction of the absorbed CO, and thus increase their catalytic activity. [19] However,d irect growth of metal NPs on BNG andb oosting their catalytic activities, to the best of our knowledge,h as been rarely reported.T herefore, it is imperative to study the synergistic effect of BNG as as upporting materialf or Pt-based nanocatalysts to further increase their electrocatalytic performance and CO tolerance.…”

Section: O 3 Catalyst Containing Low Contentmentioning

confidence: 99%

NiPt Nanocatalysts Supported on Boron and Nitrogen Co‐Doped Graphene for Superior Hydrazine Dehydrogenation and Methanol Oxidation

Cai

et al. 2016

ChemCatChem

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Boron and nitrogen co‐doped graphene (BNG) with negligible covalent boron–nitride (BN) bonding, and high boron and pyridinic nitrogen contents has been synthesized by a two‐step method using boron–carbon–nitride (BCN) as the boron and nitrogen sources. The use of the BCN precursor is the key for preparing BNG, while annealing reduced graphene oxide, urea, and boric acid in a one‐step method results in separated domains of larger amounts of covalent BN in the graphene networks (s‐BNG). The resulting BNGs are further used to anchor NiPt nanoparticles (NPs) with good dispersion. Consequently, Ni3Pt7/BNG‐1000 exhibits the highest catalytic activity toward hydrazine dehydrogenation at room temperature, with the turnover frequency of 199.4 h−1. Furthermore, as evidence of its multifunctionality, Ni3Pt7/BNG‐1000 is further employed for electrocatalytic methanol oxidation.

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“…Boron-doped graphene has also been studied for applications in other technological fields [8]. In fact, boron-doped graphene has been proposed as an active electrocatalyst for oxygen reduction reaction in fuel cells [9,10], as a back electrode in CdTe solar cell [11], and as support for platinum catalyst [12]. For these last two applications, the borondoped graphene samples were obtained from different types of thermal processing of graphene oxide.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Boron Atoms on Graphene Grown by Chemical Vapor Deposition Using Triisopropyl Borate as a Single Precursor

Romani

Larrudé

Costa

et al. 2017

Journal of Nanomaterials

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We synthesized single-layer graphene from a liquid precursor (triisopropyl borate) using a chemical vapor deposition. Optical microscopy, scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy measurements were used for the characterization of the samples. We investigated the effects of the processing temperature and time, as well as the vapor pressure of the precursor. The B 1s core-level XPS spectra revealed the presence of boron atoms incorporated into substitutional sites. This result, corroborated by the observed upshift of both G and 2D bands in the Raman spectra, suggests the p-doping of single-layer graphene for the samples prepared at 1000 ∘ C and pressures in the range of 75 to 25 mTorr of the precursor vapor. Our results show that, in optimum conditions for single-layer graphene growth, that is, 1000 ∘ C and 75 mTorr for 5 minutes, we obtained samples presenting the coexistence of pristine graphene with regions of boron-doped graphene.

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Boron-doped graphene as promising support for platinum catalyst with superior activity towards the methanol electrooxidation reaction

Cited by 81 publications

References 50 publications

Boron doped graphene wrapped silver nanowires as an efficient electrocatalyst for molecular oxygen reduction

Boron doped graphene wrapped silver nanowires as an efficient electrocatalyst for molecular oxygen reduction

NiPt Nanocatalysts Supported on Boron and Nitrogen Co‐Doped Graphene for Superior Hydrazine Dehydrogenation and Methanol Oxidation

Incorporation of Boron Atoms on Graphene Grown by Chemical Vapor Deposition Using Triisopropyl Borate as a Single Precursor

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