Fabrication of a Single‐Atom Platinum Catalyst for the Hydrogen Evolution Reaction: A New Protocol by Utilization of HxMoO3−x with Plasmon Resonance

Liu, Wei; Xu, Qun; Yan, Pengfei; Chen, Jun; Du, Yi; Chu, Shengqi; Wang, Jiaou

doi:10.1002/cctc.201701777

Cited by 47 publications

(29 citation statements)

References 50 publications

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“…The HER activity of MoO3/MoS2 remained stable even if it was tested for 10,000 cycles ( Figure 3c) [56]. Besides, Pt [59], Pd [60], RuO2 [19] can also load on MoO3, to get excellent electrocatalysts for electrocatalytic hydrogen evolution. [49].…”

Section: Electrocatalytic Hydrogen Evolution Reactionsmentioning

confidence: 99%

Nanostructured MoO3 for Efficient Energy and Environmental Catalysis

et al. 2019

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This paper mainly focuses on the application of nanostructured MoO 3 materials in both energy and environmental catalysis fields. MoO 3 has wide tunability in bandgap, a unique semiconducting structure, and multiple valence states. Due to the natural advantage, it can be used as a high-activity metal oxide catalyst, can serve as an excellent support material, and provide opportunities to replace noble metal catalysts, thus having broad application prospects in catalysis. Herein, we comprehensively summarize the crystal structure and properties of nanostructured MoO 3 and highlight the recent significant research advancements in energy and environmental catalysis. Several current challenges and perspective research directions based on nanostructured MoO 3 are also discussed.Molecules 2020, 25, 18 2 of 26 applications in energy and environmental catalysis on account of their relatively low cost, high activity, and stability [9][10][11][12].Molybdenum oxide (MoO 3 ), a kind of transition metal oxide with a n-type semiconducting, nontoxic nature and high stability, has attracted a lot of attention. In particular, nanostructured MoO 3 has demonstrated superior properties to bulk MoO 3 , which is successfully employed in rechargeable batteries [13], capacitors [14], photocatalysis [15], electrocatalysis [16], gas sensors [17], and other applications [6]. The extended tunnels between the MoO 6 octahedra in MoO 3 are suitable for insert/de-insert mobile ions, such as H + and Li + , and multiple oxidation states can enable rich redox reactions. Moreover, the superiorities of low cost, chemical stability, high theoretical specific capacity (1117 mA·h/g), and the environmentally friendly nature make nanostructured MoO 3 exceptional electrode materials for rechargeable batteries capacitors [13,18]. MoO 3 has been investigated as the photocatalyst in terms of its anisotropic layered structure for absorbing UV, as well as visible light. Introducing a defect band by H + intercalation or oxygen vacancies can create defect state and decrease MoO 3 bandgap, which effectively increase the photocatalytic activity [15]. Each oxygen atom bonds to only one molybdenum atom of MoO 6 octahedra, and oxygen vacancy generates Mo dangling bond. MoO 3 favors the adsorption of water molecules in oxygen vacancies, which act as electron acceptors and consequently reduce the energy barrier make it highly reactive for electrocatalysis [2,19]. As a good gasochromic material, MoO 3 has efficient positive-ion accommodation and good charge transfer, and it can be used as an optical-based gas sensor. Moreover, relying on the change in the conductance of the oxide-on-gas adsorption/reaction, MoO 3 has been used for NO, NO 2 , CO, H 2 , NH 3 , and other gases [17]. The unique structure strongly affects the performances. Large efforts have been made to obtain nanostructured MoO 3 with appealing properties by engineering multiple synthetic strategies for the applications in various fields. A variety of methods have been developed, including hydrothermal met...

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Section: Electrocatalytic Hydrogen Evolution Reactionsmentioning

confidence: 99%

Nanostructured MoO3 for Efficient Energy and Environmental Catalysis

et al. 2019

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“…Xu and co‐workers designed a new strategy to prepare single‐atom Pt on MoO 3–x (Pt 1 /MoO 3–x ) under room temperature and dark conditions . The as‐prepared Pt 1 /MoO 3–x combined with carbon black (Pt 1 /MoO 3–x /C) acquired a low overpotential of 23.3 mV at a current density of 10 mA cm −2 (Figure a).…”

Section: Her Applications Of Sacsmentioning

confidence: 55%

Single‐Atom Catalysts for the Hydrogen Evolution Reaction

2018

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Electrocatalytic hydrogen evolution reaction (HER) is recognized as a promising way to generate clean hydrogen energy. However, its large-scale application requires the development of cheap and efficient catalysts. An increasing number of reports have been published lately on the HER over single atom catalysts (SACs) owing to the high catalytic activity, stability and maximum atom utilization of SACs, of which the final point endows noble-metal catalysts with low costs. In this Review, we highlight the electrochemical applications of all reported SACs in the HER, with a particular focus on the discussion of their catalytic properties and mechanisms at the atomic level. The main advantages and challenges of SACs are also summarized. This Review aims to provide a comprehensive understanding of current and future applications of SACs in the HER.

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“…The concept of single-atom catalysts (SACs) was first proposed by Qiao et al [150] in 2011 and has been extended to many catalytic areas and is a fast-growing area of research [36,[151][152][153]. In SACs, each metal atom can act as one catalytic active site or center in which the interaction between single atoms and supports can lead to promising properties [154].…”

Section: Single-atom Catalystsmentioning

confidence: 99%

Recent Progresses in Oxygen Reduction Reaction Electrocatalysts for Electrochemical Energy Applications

Wang

et al. 2019

Electrochem. Energ. Rev.

203

106

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Electrochemical energy storage systems such as fuel cells and metal-air batteries can be used as clean power sources for electric vehicles. In these systems, one necessary reaction at the cathode is the catalysis of oxygen reduction reaction (ORR), which is the rate-determining factor affecting overall system performance. Therefore, to increase the rate of ORR for enhanced system performances, efficient electrocatalysts are essential. And although ORR electrocatalysts have been intensively explored and developed, significant breakthroughs have yet been achieved in terms of catalytic activity, stability, cost and associated electrochemical system performance. Based on this, this review will comprehensively present the recent progresses of ORR electrocatalysts, including precious metal catalysts, non-precious metal catalysts, single-atom catalysts and metal-free catalysts. In addition, major technical challenges are analyzed and possible future research directions to overcome these challenges are proposed to facilitate further research and development toward practical application.

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Fabrication of a Single‐Atom Platinum Catalyst for the Hydrogen Evolution Reaction: A New Protocol by Utilization of H_xMoO_3−x with Plasmon Resonance

Cited by 47 publications

References 50 publications

Nanostructured MoO3 for Efficient Energy and Environmental Catalysis

Nanostructured MoO3 for Efficient Energy and Environmental Catalysis

Single‐Atom Catalysts for the Hydrogen Evolution Reaction

Recent Progresses in Oxygen Reduction Reaction Electrocatalysts for Electrochemical Energy Applications

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