Molybdenum carbide in-situ embedded into carbon nanosheets as efficient bifunctional electrocatalysts for overall water splitting

Xing, Jiangnan; Li, Yang; Guo, Siwei; Jin, Tao; Li, Haixia; Wang, Yijing; Jiao, Lifang

doi:10.1016/j.electacta.2018.12.091

Cited by 70 publications

(46 citation statements)

References 51 publications

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“…Mo‐based polyoxometalates are applicable to the water‐splitting devices . The Anderson‐type (NH 4 ) 4 [Co II Mo 6 O 24 H 6 ]·6H 2 O polyoxometalate is incorporated in photoelectrodes to produce heterosheets for efficient water‐splitting process, demonstrating a reduction of the overpotential with the aid of the polyoxometalate .…”

Section: Polyoxomolybdatementioning

confidence: 99%

“…89 Mo-based polyoxometalates are applicable to the water-splitting devices. 262,263 The Anderson-type (NH 4 ) 4 [Co II Mo 6 O 24 H 6 ]Á6H 2 O polyoxometalate is incorporated in photoelectrodes to produce heterosheets for efficient water-splitting process, demonstrating a reduction of the overpotential with the aid of the polyoxometalate. 264 Attaching dye ligands on Mo-based polyoxometalate extends the light absorption spectra, resulting in enhanced water-splitting capabilities.…”

Section: Polyoxotungstatementioning

confidence: 99%

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Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Zhang

Chen

2020

Int J Energy Res

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Summary Polyoxometalates could be viewed as the molecular counterpart of the metal oxides, which are essential ingredients for various energy conversion and storage applications. In this manuscript, we review the progress of engineering functional polyoxometalates toward energy applications, focusing on, but not limited to, polyoxotitanate, polyoxotungstate, and polyoxomolybdate. These polyoxometalates are considered to be promising candidates for dye‐sensitized solar cell, perovskite solar cell, lithium‐ion battery, lithium‐sulfur battery, supercapacitor, and water‐splitting system. We believe advanced energy devices with better performance could be derived from further engineering the polyoxometalates owing to their molecular design flexibility.

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Section: Polyoxomolybdatementioning

confidence: 99%

Section: Polyoxotungstatementioning

confidence: 99%

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Zhang

Chen

2020

Int J Energy Res

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“…9b). 33,62,[77][78][79][80][81][82][83][84][85] Furthermore, we have also measured the longterm stability of 3D Ni 3 S 2 nanorod array electrode (S-120-16) based electrolyzers, as shown in Fig. 9c.…”

Section: Catalytic Properties Of the 3d Ni 3 S 2 Nanorod Arraysmentioning

confidence: 99%

Three dimensional Ni₃S₂ nanorod arrays as multifunctional electrodes for electrochemical energy storage and conversion applications

Cui

Fan

et al. 2020

Nanoscale Adv.

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“…Coupling molybdenum carbide with reduced graphene oxide produced Mo 2 C@NPC/NPRGO nanocomposite catalyst and exhibited very excellent HER performance ( η 10 /34 mV) even superior to commercial Pt/C ( η 10 /40 mV) in acidic electrolyte . Molybdenum carbide in‐situ embedded into carbon nanosheets exhibited excellent electrocatalytic HER activities with low overpotentials of 130 mV to achieve a current density of 10 mA cm −2 …”

Section: Introductionmentioning

confidence: 99%

“…[27] Molybdenum carbide in-situ embedded into carbon nanosheets exhibited excellent electrocatalytic HER activities with low overpotentials of 130 mV to achieve a current density of 10 mA cm À 2 . [28] Recently, the combination of metal doping and coupling with high-conductivity supports was reported as an effective strategy for further promoting the electrocatalytic HER activity of molybdenum carbide. Yu et.al found that Porous carbonsupported Ni/Mo 2 C (Ni/Mo 2 C-PC) composite catalyst derived by thermal treatment of nickel molybdate nanorods coated with polydopamine showed remarkably higher catalytic activity over the Mo 2 C-PC and Ni-PC catalysts.…”

Section: Introductionmentioning

confidence: 99%

Sandwiched NiO/β‐Mo₂C/RGO as Improved Electrocatalyst for Hydrogen Evolution Reaction: Solvothermal‐Assisted Self‐Assembly and Catalytic Mechanism

Ruan

Zhu

et al. 2019

ChemElectroChem

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Molybdenum carbide is a cost‐effective alternative to Pt‐group noble metal electrocatalyst for hydrogen evolution reaction (HER), developing a facile strategy to improve the HER activity of molybdenum carbide and understanding the mechanism is of great concern and challenging. Herein, a solvothermal‐assisted self‐assembly procedure of fabricating sandwiched NiO/β‐Mo2C/RGO nanocomposite catalyst was reported. Electrochemical measurements demonstrate that the catalytic activity and durability of β‐Mo2C can be significantly improved in the sandwiched NiO/β‐Mo2C/RGO. Comparative studies between various catalysts such as β‐Mo2C, NiO/β‐Mo2C, β‐Mo2C/RGO, and NiO/β‐Mo2C/RGO have been performed to explore the mechanism underpinning their different catalytic performance. Our results revealed that hybrid of β‐Mo2C and RGO resulted in significant improvement in electrical conductivity, NiO loading modified the electron density on the surface of β‐Mo2C (101) to the electron‐rich state to generate highly active catalytic site. The synergistic effect of RGO and NiO loading would be responsible for the improved electrocatalytic performance of the NiO/β‐Mo2C/RGO catalysts. The strategy developed in this work not only provides a new pathway for improving HER activity of molybdenum carbide but also deepens fundamental understandings on the structure‐reactivity of molybdenum carbide‐based nanocomposite catalysts with higher HER activity.

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Molybdenum carbide in-situ embedded into carbon nanosheets as efficient bifunctional electrocatalysts for overall water splitting

Cited by 70 publications

References 51 publications

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Three dimensional Ni₃S₂ nanorod arrays as multifunctional electrodes for electrochemical energy storage and conversion applications

Sandwiched NiO/β‐Mo₂C/RGO as Improved Electrocatalyst for Hydrogen Evolution Reaction: Solvothermal‐Assisted Self‐Assembly and Catalytic Mechanism

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Molybdenum carbide in-situ embedded into carbon nanosheets as efficient bifunctional electrocatalysts for overall water splitting

Cited by 70 publications

References 51 publications

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

Three dimensional Ni3S2 nanorod arrays as multifunctional electrodes for electrochemical energy storage and conversion applications

Sandwiched NiO/β‐Mo2C/RGO as Improved Electrocatalyst for Hydrogen Evolution Reaction: Solvothermal‐Assisted Self‐Assembly and Catalytic Mechanism

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Product

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Three dimensional Ni₃S₂ nanorod arrays as multifunctional electrodes for electrochemical energy storage and conversion applications

Sandwiched NiO/β‐Mo₂C/RGO as Improved Electrocatalyst for Hydrogen Evolution Reaction: Solvothermal‐Assisted Self‐Assembly and Catalytic Mechanism