Tailoring Electrocatalytic Properties of Pt Nanoparticles Grown on Ti3C2TXMXene Surface

Filip, Jaroslav; Zavahir, Sifani; Lorencová, Lenka; Bertók, Tomáš; Yousaf, Ammar Bin; Mahmoud, Khaled A.; Tkac, Jan; Kasák, Peter

doi:10.1149/2.0991902jes

Cited by 54 publications

(24 citation statements)

References 66 publications

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“…In addition, as the reaction time increases, it can be seen from the figure that the diffraction peak of palladium becomes sharper and the intensity of the characteristic peak increases, further indicating that the crystallization of palladium is getting better and better. But the number decrement of palladium nanoparticles leads to changes in the crystal structure of MXene [23].…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy

et al. 2019

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With development of the society, the problem of environmental pollution is becoming more and more serious. There is the urgent need to develop a new type of sustainable green material for degradable pollutants. However, the conventional preparation method is limited by conditions such as cumbersome operation, high energy consumption, and high pollution. Here, a simple method named self-reduction has been proposed, to synthesize highly efficient catalytic nitro compounds and morin self-assembled MXene-Pd nanocomposites. Palladium nanoparticles were grown in situ on MXene nanosheets to form MXene@PdNPs. MXene@PdNPs composites with different reaction times were prepared by adjusting the reduction reaction time. In particular, MXene@PdNPs20 exhibited a high catalytic effect on 4-NP and 2-NA, and the first-order rate constants of the catalysis were 0.180 s−1 and 0.089 s−1, respectively. It should be noted that after eight consecutive catalytic cycles, the conversion to catalyze 4-NP was still greater than 94%, and the conversion to catalyze 2-NA was still greater than 91.8%. Therefore, the research of self-assembled MXene@PdNPs nanocomposites has important potential value for environmental management and sustainable development of human health, and provides new clues for the future research of MXene-based new catalyst materials.

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Section: Resultsmentioning

confidence: 99%

Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy

et al. 2019

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“…Generally, H 2 PtCl 6 is widely used to produce Pt NPs onto MXene surfaces. [ 113,238,240,241,243 ] For instance, Xie et al. demonstrated the in situ fabrication of Pt NPs on surface Al etched Ti 3 AlC 2 particles, which exhibited significantly enhanced activity and stability for ORR owing to the strong interaction between the Pt NPs and Ti 3 C 2 flakes ( Figure a).…”

Section: Hetero‐mxenesmentioning

confidence: 99%

“…systematically investigated the structure and composition of Ti 3 C 2 T x /PtNP under various reaction conditions. [ 241 ] As revealed, Pt NPs stacked into clusters under the reduction of NaBH 4 while H 2 PtCl 6 was more intensively reduced by initial MXenes without any reducing agent. Moreover, other metal precursors (such as AgNO 3 , HAuCl 4 and PdCl 2 salts) have been spontaneously reduced by Ti 3 C 2 T x , resulting in MXene‐based hybrids containing Au, Pd, and Ag NPs.…”

Section: Hetero‐mxenesmentioning

confidence: 99%

Hetero‐MXenes: Theory, Synthesis, and Emerging Applications

et al. 2021

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Since their discovery in 2011, MXenes (abbreviation for transition metal carbides, nitrides, and carbonitrides) have emerged as a rising star in the family of 2D materials owing to their unique properties. Although the primary research interest is still focused on pristine MXenes and their composites, much attention has in recent years been paid also to MXenes with diverse compositions. To this end, this work offers a comprehensive overview of the progress on compositional engineering of MXenes in terms of doping and substituting from theoretical predictions to experimental investigations. Synthesis and properties are briefly introduced for pristine MXenes and then reviewed for hetero‐MXenes. Theoretical calculations regarding the doping/substituting at M, X, and T sites in MXenes and the role of vacancies are summarized. After discussing the synthesis of hetero‐MXenes with metal/nonmetal (N, S, P) elements by in situ and ex situ strategies, the focus turns to their emerging applications in various fields such as energy storage, electrocatalysts, and sensors. Finally, challenges and prospects of hetero‐MXenes are addressed. It is anticipated that this review will be beneficial to bridge the gap between predictions and experiments as well as to guide the future design of hetero‐MXenes with high performance.

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“…Ag/AgCl (3 M KCl) with a dramatic alteration of the redox behaviour of MXene . Stability of MXene for operation in a cathodic potential window can be enhanced to some degree by deposition of PtNPs on MXene .…”

Section: Application Of Mxene In Biosensingmentioning

confidence: 99%

“…MXene should be applied for the construction of electrochemical biosensors operating especially in a cathodic potential window since MXene can be irreversibly oxidized at potential of + 0.4 vs. Ag/ AgCl (3 M KCl) with a dramatic alteration of the redox behaviour of MXene [44]. Stability of MXene for operation in a cathodic potential window can be enhanced to some degree by deposition of PtNPs on MXene [32,45].…”

Section: Application Of Mxene In Biosensingmentioning

confidence: 99%

2D MXenes as Perspective Immobilization Platforms for Design of Electrochemical Nanobiosensors

et al. 2019

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MXenes are a new group of 2D nanomaterials with fascinating properties including high electrical conductivity, hydrophilic nature, easily tunable structure and high surface area. This is why MXene modified interfaces are extremely promising for the preparation of sensitive electrochemical biosensors. While there are numerous reports on MXene‐based enzymatic biosensors for detection of a wide range of analytes, application of MXene for construction of affinity biosensors is in its infancy. The review article summarizes current state‐of the‐art in the field with a focus on MXene modifications needed for construction of robust and high performance MXene electrochemical biosensors.

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Tailoring Electrocatalytic Properties of Pt Nanoparticles Grown on Ti₃C₂T_XMXene Surface

Abstract: Scheme 1. Illustration of the Ti 3 C 2 T X MXene structure and its modification with Pt nanoparticles with and without employment of the reducing agent NaBH 4 .

Cited by 54 publications

References 66 publications

Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy

Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy

Hetero‐MXenes: Theory, Synthesis, and Emerging Applications

2D MXenes as Perspective Immobilization Platforms for Design of Electrochemical Nanobiosensors

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