Heteroatom-Doped Graphene-Based Materials for Energy-Relevant Electrocatalytic Processes

Duan, Jingjing; Chen, Sheng; Jaroniec, Mietek; Qiao, Shi Zhang

doi:10.1021/acscatal.5b00991

Cited by 815 publications

(538 citation statements)

References 270 publications

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“…Graphene is such a kind of new carbon material. 135,136 However, there is still no ideal graphene commercially available. Many defects or impurities exist in the graphene from present fabrication methods.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

et al. 2017

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A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: nanostructure, activity, mechanism and carbon support in PEM fuel cells. Journal of Materials Chemistry A, 5 (5). pp. 1808 -1825 . ISSN 2050 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/40957/1/Journal%20of%20Materials%20Chemistry%20A %EF%BC%88C6TA08580F%20-%20corrected%20proofs%20-final%EF%BC%89.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the University of Nottingham End User licence and may be reused according to the conditions of the licence. For more details see: http://eprints.nottingham.ac.uk/end_user_agreement.pdf A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with electronic notes attached -do not change the text within the PDF file or send a revised manuscript. Corrections at this stage should be minor and not involve extensive changes. All corrections must be sent at the same time.Please bear in mind that minor layout improvements, e.g. in line breaking, table widths and graphic placement, are routinely applied to the final version.We will publish articles on the web as soon as possible after receiving your corrections; n no late corrections will be made. The sluggish rate of the oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells has been a major challenge. Significantly increasing efforts have been made worldwide towards a highly active ORR catalyst with high durability. Among all the catalysts exploited, Pt electrocatalysts are still the best in terms of a comprehensive evaluation. The investigation of Pt-based ORR catalysts is necessary for a practical ORR catalyst with low Pt content. This paper reviews recent progress in the studies of the mechanism, nanostructure, size effect and carbon supports of Pt electrocatalysts for the ORR. The importance of the size and structure control of Pt ORR catalysts, related with carbon support materials, is indicated. The potential methods for such control are discussed. The progress in theoretical studies and in situ catalyst characterization are also discussed. Finally, challenges and future developments are addressed.

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Section: Conclusion and Perspectivementioning

confidence: 99%

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

et al. 2017

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“…However, in the future energy supply based on clean and renewable energy will dominate over the dependency on fossil fuels and this addresses challenges for technology development [1,2]. Water electrolysis is a promising method for storing intermittent electrical energy from renewable resources, such as sun and wind, in the form of hydrogen fuel [3].…”

Section: Introductionmentioning

confidence: 99%

“…Water electrolysis is a promising method for storing intermittent electrical energy from renewable resources, such as sun and wind, in the form of hydrogen fuel [3]. Electrochemical water splitting in alkaline media includes two half reactions: the hydrogen evolution reaction (HER, 4H 2 have shown high activity toward OER in acidic and alkaline media [4,5], and among the non-noble metal OER electrocatalysts, nickel (Ni) based electrocatalysts have shown very promising performance for OER in alkaline media [6][7][8][9][10]. For HER, Pt based materials are known as the most efficient HER catalysts in both acidic and alkaline media [4,11].…”

Section: Introductionmentioning

confidence: 99%

Straightforward synthesis of nitrogen-doped carbon nanotubes as highly active bifunctional electrocatalysts for full water splitting

Davodi

Tavakkoli

Lahtinen

et al. 2017

Journal of Catalysis

105

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a b s t r a c tThe success of intermittent renewable energy systems relies on the development of energy storage technologies. Particularly, active and stable water splitting electrocatalysts operating in the same electrolyte are required to enhance the overall efficiency and reduce the costs. Here we report a precise and facile synthesis method to control nitrogen active sites for producing nitrogen doped multi-walled carbon nanotube (NMWNT) with high activity toward both oxygen and hydrogen evolution reactions (OER and HER). The NMWNT shows an extraordinary OER activity, superior to the most active non-metal based OER electrocatalysts. For OER, the NMWNT requires overpotentials of only 320 and 360 mV to deliver current densities of 10 and 50 mA cm À2 in 1.0 M NaOH, respectively. This metal-free electrocatalyst also exhibits a proper performance toward HER with a moderate overpotential of 340 mV to achieve a current density of 10 mA cm À2 in 0.1 M NaOH. This catalyst also shows high stability after long-time water oxidation without notable changes in the structure of the material. It is revealed that the electron-withdrawing pyridinic N moieties in the NMWNTs could serve as the active sites for OER and HER. Our findings open up new avenues for the development of metal-free electrocatalysts for full water splitting.

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“…[5][6][7] During the past few years, transitional metal sulfides such as nanometer-scaled MoS 2 and WS 2 have attracted considerable attention in HER fields because of their low cost, high chemical stability, and excellent electrocatalytic properties. [8][9][10][11][12][13] Studies concluded that the unsaturated sulfur atoms on the edges of the 2D MoS 2 layers play a crucial role in HER catalysis 14 and the electric conductivity of catalysts is another crucial factor to affect the electrocatalytic activity.…”

mentioning

confidence: 99%

3D Tungsten-Doped MoS₂Nanostructure: A Low-Cost, Facile Prepared Catalyst for Hydrogen Evolution Reaction

Liang

Mao

et al. 2016

J. Electrochem. Soc.

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Cost effective electrocatalysts for hydrogen evolution reactions are attractive for energy conversion and storage progress. A high performance hydrogen evolution reaction (HER) electrocatalyst of 3D MoS 2 nanostructure modified by tungsten incorporation is produced via hydrothermal method. By means of controllable tungsten incorporation, an optimized catalyst with rich defects was developed, exhibiting high hydrogen evolution activities. In general, the 3D MoS 2 -W3 exhibits an overpotential as low as 200 mV, accompanied with high exchange current density of 6.9 μA cm −2 and excellent stability after 3000 cycles. This work paves a new route in the design of efficient and durable non-precious-metal electrocatalysts for HER in acidic medium. Sustainable hydrogen production has attracted growing attention, and an advanced catalyst for the electrochemical hydrogen evolution reaction (HER) that results in increased efficiency of this important electrochemical process is urgently required.1-3 Although excellent HER performance has been reached for platinum and other precious metals, 4 replacing the expensive and rare catalysts with cost effective and high efficient alternatives still attract scientists' attention toward making the hydrogen production more economic and competitive. [5][6][7] During the past few years, transitional metal sulfides such as nanometer-scaled MoS 2 and WS 2 have attracted considerable attention in HER fields because of their low cost, high chemical stability, and excellent electrocatalytic properties. [8][9][10][11][12][13] Studies concluded that the unsaturated sulfur atoms on the edges of the 2D MoS 2 layers play a crucial role in HER catalysis 14 and the electric conductivity of catalysts is another crucial factor to affect the electrocatalytic activity. [15][16][17] Hence, increasing the number of active sites is an efficient pathway to enhance the HER activity. 18,19 The latest reported results show a new strategy to fabricate a new oxygen-incorporated MoS 2 ultrathin nanosheets catalyst that preferentially exposes active sites by incorporating oxygen atoms.20 Zhou et al. prepared ultrathin MoS 2(1−x) Se 2x alloy nanoflakes with monolayer or few-layer thickness, which possessed more active sites than single MoS 2 .21 Rao et al. studied rhenium-doped nanoparticles of MoS 2 with fullerene-like structures (IF-MoS 2 ), that not only changes the intrinsic nature of the MoS 2 but also increases its reactivity. 22Cationic doping with a small fraction of cobalt or nickel is also used to promote the electrocatalytic performance of MoS 2 . Besides, Ni, Co and Fe were adopted to improve the intrinsic activity, and more highly conductive materials were added to improve the electrical contact, including graphene, carbon nanotubes, carbon nanospheres, and so on. [23][24][25] With respect to the last issue, the structure design of MoS 2 has attracted great attentions to obtain more active sites. 26 Both of WS 2 and MoS 2 are transition-metal sulfides, which have the similar crystal structure. Moreover...

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Heteroatom-Doped Graphene-Based Materials for Energy-Relevant Electrocatalytic Processes

Cited by 815 publications

References 270 publications

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

Straightforward synthesis of nitrogen-doped carbon nanotubes as highly active bifunctional electrocatalysts for full water splitting

3D Tungsten-Doped MoS₂Nanostructure: A Low-Cost, Facile Prepared Catalyst for Hydrogen Evolution Reaction

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Heteroatom-Doped Graphene-Based Materials for Energy-Relevant Electrocatalytic Processes

Cited by 815 publications

References 270 publications

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

Straightforward synthesis of nitrogen-doped carbon nanotubes as highly active bifunctional electrocatalysts for full water splitting

3D Tungsten-Doped MoS2Nanostructure: A Low-Cost, Facile Prepared Catalyst for Hydrogen Evolution Reaction

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Product

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3D Tungsten-Doped MoS₂Nanostructure: A Low-Cost, Facile Prepared Catalyst for Hydrogen Evolution Reaction