When MOFs meet MXenes: superior ORR performance in both alkaline and acidic solutions

Wang, Wentao; Batool, Nadia; Zhang, Tian‐Heng; Liu, Jiao; Han, Xiao-Feng; Tian, Jing‐Hua; Yang, Ruizhi

doi:10.1039/d0ta10811a

Cited by 78 publications

(27 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To better understand the ORR activities, K-L plots were obtained at a few LSV rotating speeds, showing good linearity, suggesting a 4-electron transfer process. Very recently, Wang et al 195 introduced Fe-doped ZIF-8 as the Metal-Nitrogen-Carbon (M-N-C) material to be coupled with Ti 3 C 2 T x MXenes. The catalyst was produced through a separate pyrolysis strategy to ensure the high carbonization temperature needed for the high catalytic activity of Fe-N-C while avoiding MXene damage caused by a high pyrolysis temperature.…”

Section: Mxenes As Noble-free Catalyst Supportsmentioning

confidence: 99%

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

et al. 2021

View full text Add to dashboard Cite

The oxygen reduction reaction (ORR) that occurs in the cathode of fuel cells is a major issue in proton exchange membrane fuel cells (PEMFCs) due to their sluggish kinetics. Exploring suitable materials for use as cathode catalysts can be challenging because the materials should be chemically active yet must be stable in an extremely corrosive environment in fuel cells. Since the successful introduction of graphene, 2-dimensional (2D) materials have received extensive research interest regarding their use as support materials for cathode catalysts due to their large surface area for catalyst dispersion. Recently, research on 2D MXene-based catalyst supports has started to increase. Excellent electronic properties, electrical conductivity, hydrophilicity and chemical and thermal stability are the key properties of potential MXenes used as catalyst supports. Therefore, in this review, the properties and performance of 2D MXene-based catalyst supports in the ORR are comprehensively discussed. This finding provides the groundwork for the exploration of MXenes in electrocatalysis, especially in the ORR. Challenges and future research directions are also discussed in this review.

show abstract

Section: Mxenes As Noble-free Catalyst Supportsmentioning

confidence: 99%

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Furthermore, from the structure and morphology characterizations of FeNC/ MXene, a thin FeNC coating was noticed on the MXene surface, forming a heterogeneous structured nanosheet elucidating admirable conductivity and electrocatalytic properties due to increased active sites on the substrate. Wang et al reported Fe-N-C@Ti 3 C 2 T x synthesized Fe doped ZIF-8 was carbonized to Fe-N-C. 108 The assynthesized catalyst achieved a limiting current density of 6.3 mA cm À2 with no attenuation even after 10 000 cycles in 0.1 M KOH. The electrocatalyst showed an outstanding stability in acidic medium (0.1 M HClO 4 ) even after 10 000 cycles only 11 mV attenuation was observed.…”

Section: Mxene As Elecrocatalyst For Orrmentioning

confidence: 99%

Recent advances in MXene as electrocatalysts for sustainable energy generation: A review on surface engineering and compositing of MXene

Das

Balaji

Dutta

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

The electrocatalysis have a crucial role in the journey towards sustainable energy-economy. By observing present scenario, it can be inferred that the electrochemical energy technologies have become an inseparable system in our everyday-life. From generating green fuels to fabrication of high rechargeable electrochemical systems, are being achieved with the help of electrocatalyst. But, the shortage of pertinent catalysts has hindered this process. The desirable factors mainly required in a suitable electrocatalyst are its economic feasibility, robustness, reusability, and performance efficiency. To achieve that, scientists from all over the globe recommended various options, where tuning the MXenes are one of them. Characteristics like hydrophilicity, superior conductivity, and facile processing techniques have made them prominent choice for the applications. Further, enhancements like forming hybrids, different procedures of synthesis of its sheets are done to alter the electronic and structural features to achieve better catalytic activity. In this article, we are going to illustrate some of the important synthesis strategies, applications along with their pros and cons. This article promotes recent advancements in the surface engineering of MXene and its composites such as electrocatalyst in hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR); meanwhile invites researchers from different fields of science applications to contribute in this research to expand its extent.

show abstract

“…This is possibly a significant obstacle that results in a lack of studies on nonprecious ORR catalysts based on 2D MXenes, compared to other 2D materials such as graphene. In view of this, Wang et al [123] synthesized an Fe-N-C@Ti 3 C 2 T x catalyst, in which the Fe-N-C catalyst presynthesized from ZIF-8 (pyrolyzed at 1100 °C) was mixed with Ti 3 C 2 T x and further subjected to a low-temperature heat-treatment process (350 °C) to generate a high-surface-area ORR catalyst (Figure 11i). The layered Ti 3 C 2 T x was found to act as a substrate and effectively alleviated the agglomeration of Fe-N-C and enhanced the stability of the catalyst.…”

Section: Non-pt/mxene Catalysts For the Orrmentioning

confidence: 99%

mentioning

confidence: 99%

Recent Advances on MXene‐Based Electrocatalysts toward Oxygen Reduction Reaction: A Focused Review

Peera

Liu

Sahu

et al. 2021

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

When MOFs meet MXenes: superior ORR performance in both alkaline and acidic solutions

Abstract: The facilely synthesized Fe–N–C@Ti3C2Tx composite exhibited excellent ORR activity and extraordinary stability in both alkaline and acidic solutions.

Cited by 78 publications

References 57 publications

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

Recent advances in MXene as electrocatalysts for sustainable energy generation: A review on surface engineering and compositing of MXene

Recent Advances on MXene‐Based Electrocatalysts toward Oxygen Reduction Reaction: A Focused Review

Contact Info

Product

Resources

About