Ultra-sensitive electrocatalytic detection of bromate in drinking water based on Nafion/Ti3C2Tx (MXene) modified glassy carbon electrode

Rasheed, P. Abdul; Pandey, Ravi P.; Rasool, Kashif; Mahmoud, Khaled A.

doi:10.1016/j.snb.2018.03.103

Cited by 168 publications

(61 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 146 ] Mahmood and co‐workers developed a versatile sensor platform based on lamellar Ti 3 C 2 T x for the quantitative detection of bromate (BrO 3 − ) in water. [ 147 ] The sensor displayed a selective electrocatalytic reduction capability of Ti 3 C 2 T x MXene toward the reduction of BrO 3 ‐ ions. The study revealed partial surface oxidation of the Ti 3 C 2 T x with the formation of TiO 2 , which demonstrates that oxygen can oxidize Ti 3+ /Ti 2+ to Ti 4+ to form TiO 2 and reduce BrO 3 − to Br − , producing reduction currents on the MXene electrode surface.…”

Section: Applications Of Mxenes As An Electrically Conductive Materialsmentioning

confidence: 99%

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

et al. 2020

View full text Add to dashboard Cite

conductive nature, tunable surface chemistry, and the ability to intercalate other metal ions, MXenes are at the forefront of the research in this field. One of the major factors responsible for the rapid progress in the research on MXene materials is their electrical conductivity, which is the highest among all synthetic 2D materials, more than ten times the conductivity of reduced graphene oxide (rGO) films. [7,8] This unique characteristic coupled with a hydrophilic nature and a good dispersion stability has expanded the applications of MXenes in electromagnetic interference (EMI) shielding, [9] optoelectronics, [10] sensing, [11] thermal heaters (THs), [12] thermoelectrics, [13] high dielectric materials, [14] triboelectric nanogenerators, [15] and electrode materials for batteries and supercapacitors. [16,17] Compared to graphene, the flagship 2D material, MXenes offer greater promise in applications requiring high electrical conductivity and solution processing to construct thin films via low-cost techniques such as spray coating. MXenes can form stable dispersions in a variety of solvents without an additive or surfactant; these dispersions are stable for several days, making them ideal for designing optoelectronic, plasmonic, and polymer composite applications. Most recently, a large area MXene film with dimensions of 100 cm × 10 cm was reported to possess an outstanding tensile strength (≈570 MPa), excellent electrical conductivity (≈15 100 S cm −1) and superior EMI shielding effectiveness (SE), (≈50 dB for 940 nm thick film), surpassing all the existing 2D materials produced to date. [18] The search for new and intriguing applications based on the outstanding electrical conductivity of MXenes is a topic of great interest. [6,19] MXenes are typically synthesized by a top-down selective etching procedure of a parent MAX phase, where "M" is an early transition metal element, "A" represents an element from Group 13 or 14, and "X" is either carbon or nitrogen. [20] To date, more than 100 pure MAX phase materials have been prepared; this number increases with the addition of solid solutions and/ or ordered double transition metal structures. [21] Potentially, all the MAX phase precursors can be converted to their respective MXenes, presenting numerous possibilities of materials design, in particular, regulating the electronic transport in a 2D lattice. [6] The "A" group elements in the MAX phase are etched using a mixture of acids and salts, including hydrofluoric acid (HF), NH 4 F, NaF, CaF, HCl+LiF mixture (forming in situ HF), HF+HCl, and others. [20,22] The etching process leaves the termination groups, T x (e.g., O, OH, and F) on the surface of MXenes, which are bonded to the outer M layers. The surface chemistry of MXenes offers significant opportunities to develop Since their discovery in 2011, 2D transition metal carbides, nitrides, and carbonitrides, known as MXenes, have attracted considerable global research interest owing to their outstanding electrical conductivity coupled with light weight, ...

show abstract

Section: Applications Of Mxenes As An Electrically Conductive Materialsmentioning

confidence: 99%

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In addition, MXenes were also found to be capable of sensing bromate (

{BrO}_{3}^{-}

) and volatile organic compounds (VOC) gas such as NH 3 and CH 3 COCH 3. Apart from sensing chemicals, MXenes can also be utilized to monitor the tiny changes of strain and stress due to the inherited layered structure and excellent mechanical properties from MAX phases. For example, Ma et al .…”

Section: Flexible Electronic Devicesmentioning

confidence: 99%

Recent Progress of MXene‐Based Nanomaterials in Flexible Energy Storage and Electronic Devices

Yang

Wang

et al. 2018

Energy & Environ Materials

148

View full text Add to dashboard Cite

The increasing demands for wearable electronics have stimulated the rapid development of flexible energy storage devices. MXenes are considered as promising flexible electrodes due to the ultrahigh volumetric specific capacitance, metallic conductivity, superior hydrophily, and rich surface chemistry. This work reviews, for the first time, the recent advances of MXene‐based nanomaterials in flexible energy storage devices, including pure MXenes, MXene‐carbon composites, MXene‐metal oxide composites, and MXene‐polymer composites. Applications of MXenes in flexible electronics such as sensors, nanogenerators, and electromagnetic interference shielding are also included. Then, properties of stress, strain, conductivity, and capacitance are compared to help researchers to keep balance between mechanical and electrochemical performances in designing flexible devices. Finally, challenges together with the possible solutions related to the application of MXenes in flexible devices and outlook to future directions are provided.

show abstract

“…Owing to their unique properties, MXenes have demonstrated promise for various applications, such as energy storage [31], water purification [32], chemical catalysts [33], photocatalysts [34], electrocatalysts [35], and photothermal therapy [36]. The MXene is also a promising material for sensing applications [37,38], such as electrochemical sensors [39,40], field effect transistor sensors [41], electrochemiluminescent sensors [42] and gas sensors [43,44]. For example, Kim et al [44] recently demonstrated a Ti3C2Tx MXene gas sensor by making use of its high metallic conductivity and fully functionalized surface.…”

Section: Introductionmentioning

confidence: 99%

High Sensitivity Surface Plasmon Resonance Sensor Based on Two-Dimensional MXene and Transition Metal Dichalcogenide: A Theoretical Study

Ang

et al. 2019

Nanomaterials

154

View full text Add to dashboard Cite

MXene, a new class of two-dimensional nanomaterials, have drawn increasing attention as emerging materials for sensing applications. However, MXene-based surface plasmon resonance sensors remain largely unexplored. In this work, we theoretically show that the sensitivity of the surface plasmon resonance sensor can be significantly enhanced by combining two-dimensional Ti 3 C 2 T x MXene and transition metal dichalcogenides. A high sensitivity of 198 ∘ /RIU (refractive index unit) with a sensitivity enhancement of 41.43% was achieved in aqueous solutions (refractive index ∼1.33) with the employment of monolayer Ti 3 C 2 T x MXene and five layers of WS 2 at a 633 nm excitation wavelength. The integration of Ti 3 C 2 T x MXene with a conventional surface plasmon resonance sensor provides a promising approach for bio- and chemical sensing, thus opening up new opportunities for highly sensitive surface plasmon resonance sensors using two-dimensional nanomaterials.

show abstract

Ultra-sensitive electrocatalytic detection of bromate in drinking water based on Nafion/Ti3C2Tx (MXene) modified glassy carbon electrode

Cited by 168 publications

References 61 publications

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

Recent Progress of MXene‐Based Nanomaterials in Flexible Energy Storage and Electronic Devices

High Sensitivity Surface Plasmon Resonance Sensor Based on Two-Dimensional MXene and Transition Metal Dichalcogenide: A Theoretical Study

Contact Info

Product

Resources

About