One-Pot Synthesis of Co-Doped VSe<sub>2</sub> Nanosheets for Enhanced Hydrogen Evolution Reaction

Zhu, Qing; Shao, Mengmeng; Yu, Sun; Wang, Xina; Tang, Zhe; Chen, Bin; Cheng, Hua; Lu, Zhouguang; Chua, Daniel H. C.; Pan, Hui

doi:10.1021/acsaem.8b01659

Cited by 63 publications

(52 citation statements)

References 77 publications

(131 reference statements)

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“…With the increased concentration of Co doping, Δ G H* increased as well. The electrochemical experiment result showed that the V 0.86 Co 0.14 Se 2 with the Co‐doping concentrations of 7.3 % had the best catalytic among all the Co‐doped VSe 2 , which presented the lowest charge‐transfer resistances of 4.28 Ω, largest double‐layer capacitances of 1.38 mF cm −2 , lowest overpotential of 230 mV to achieve 10 mA cm −2 and Tafel slope of 63.4 mV/dec in acidic media …”

Section: Application Of Transition Metal Selenides In Hermentioning

confidence: 99%

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

et al. 2019

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Electrolysis of water is regarded as an attractive and feasible way for producing hydrogen. So far, various non‐noble metal nanomaterials have been reported as excellent electrocatalysts for hydrogen evolution reaction. Especially, due to the low cost, earth‐abundance and tunable properties, transition metal selenides with different compositions, sizes and structures have been explored broadly as efficient catalysts with the relatively high activities, high stabilities and high efficiencies in full pH range of electrolyte for electrochemical hydrogen evolution reaction. Thus, in this Minireview, after introducing several commonly used electrochemical terms about hydrogen evolution reaction, we mainly focus on various kinds of the transition metal selenides that have been documented as electrocatalysts for hydrogen evolution reaction. Particularly, the merits and demerits of transition metal selenides for hydrogen evolution reaction are systematically discussed. Moreover, we also analyze the encountered challenges and present an outlook for the rapid development of transition metal selenides. We hope this Minireview can bring some fundamental understanding for the readers interested in the transition metal selenides and hydrogen evolution reaction.

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Section: Application Of Transition Metal Selenides In Hermentioning

confidence: 99%

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

et al. 2019

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“…[85,86] Apart from these, atom doping also enables the reduced bandgap of InGaN NWs and tunes the optical absorption. [87][88][89][90] Combining the multi-band and doping strategy is hence the most effective method to enhance optical property and boost PEC water splitting of InGaN NWs. On the other hand, the excellent electrical property with high mobility and carrier density makes InGaN NWs promising candidate for PEC photoelectrode.…”

Section: Polarity Optical and Electrical Propertiesmentioning

confidence: 99%

“…and dualelement doping strategies have been widely applied in various semiconductors. [87][88][89][90] In case of III-nitride semiconductors, doping is considered as the most common method to tune electric performance in light-emitting devices (LED), high electron mobility transistor (HEMT) and photovoltaics. [100][101][102] Definitely, doping strategy is incarnated in almost all of III-nitride NWs to modify the desired performance for PEC water splitting.…”

Section: Doping Engineeringmentioning

confidence: 99%

Modulating Surface/Interface Structure of Emerging InGaN Nanowires for Efficient Photoelectrochemical Water Splitting

Lin

Wang

2020

Adv Funct Materials

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Photoelectrochemical (PEC) water splitting provides a promising approach to convert solar energy into hydrogen. Developing active, stable, and cost-effective semiconductors photoelectrodes is of great significance for achieving high-efficiency and large-scale hydrogen production. InGaN nanowires as an important candidate have gained a great upsurge in solar water splitting due to its tunable gap, high electron mobility, large active area, and excellent chemical stability. To obtain state-of-the-art InGaN nanowires-based photoelectrodes, tremendous efforts have been devoted to enhance light absorption capacity, charge carrier dynamics, and redox activity. In this review, recent advances in InGaN nanowires as photoelectrodes for PEC water splitting are comprehensively presented, with a focus on photoelectrode optimization strategies from the aspects of surface and interface structure modulation including doping engineering, energy band engineering, heterostructure engineering, and micro-nano engineering. The representative applications of InGaN nanowires-based PEC tandem cell are also discussed. Finally, perspectives on remaining challenges and future development are outlined.

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“…Many efforts have been made over the past years to develop effective and low-cost non-noble electrocatalysts for HER [4,5]. To date, numerous nonnoble electrocatalysts, such as metal oxides [6][7][8][9], sulfides [10][11][12][13][14], selenides [15][16][17][18], phosphides [19][20][21][22], nitrides [23,24] and carbides [25][26][27] have been extensively explored. However, most non-noble metal-based catalysts, especially oxides, are unstable in acidic solution [28].…”

Section: Introductionmentioning

confidence: 99%

Synergistic electronic and morphological modulation on ternary Co1−xVxP nanoneedle arrays for hydrogen evolution reaction with large current density

Yang

Shang

Li³

et al. 2020

Sci. China Mater.

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It is a great challenge to prepare non-noble metal electrocatalysts toward hydrogen evolution reaction (HER) with large current density. Synergistic electronic and morphological structures of the catalyst have been considered as an effective method to improve the catalytic performance, due to the enhanced intrinsic activity and enlarged accessible active sites. Herein, we present novel ternary Co 1−x V x P nanoneedle arrays with modulated electronic and morphological structures as an electrocatalyst for highly efficient HER in alkaline solution. The NF@Co 1−x V x P catalyst shows a remarkable catalytic ability with low overpotentials of 46 and 226 mV at current densities of 10 and 400 mA cm −2 , respectively, as well as a small Tafel slope and superior stability. Combining the experimental and computational study, the excellent catalytic performance was attributed to the improved physical and chemical properties (conductivity and surface activity), large active surface area, and fast reaction kinetics. Furthermore, the assembled Co-V based electrolyzer (NF@Co 1−x V x-HNNs(+)||NF@Co 1−x V x P(−)) delivers small full-cell voltages of 1.58, 1.75, and 1.92 V at 10, 100, and 300 mA cm −2 , respectively. Our findings provide a systematic understanding on the V-incorporation strategy to promote highly efficient ternary electrocatalysts via synergistic control of morphology and electronic structures.

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One-Pot Synthesis of Co-Doped VSe₂ Nanosheets for Enhanced Hydrogen Evolution Reaction

Cited by 63 publications

References 77 publications

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Modulating Surface/Interface Structure of Emerging InGaN Nanowires for Efficient Photoelectrochemical Water Splitting

Synergistic electronic and morphological modulation on ternary Co1−xVxP nanoneedle arrays for hydrogen evolution reaction with large current density

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One-Pot Synthesis of Co-Doped VSe2 Nanosheets for Enhanced Hydrogen Evolution Reaction

Cited by 63 publications

References 77 publications

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction

Modulating Surface/Interface Structure of Emerging InGaN Nanowires for Efficient Photoelectrochemical Water Splitting

Synergistic electronic and morphological modulation on ternary Co1−xVxP nanoneedle arrays for hydrogen evolution reaction with large current density

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One-Pot Synthesis of Co-Doped VSe₂ Nanosheets for Enhanced Hydrogen Evolution Reaction