Bridging sheet size controls densification of MXene films for robust electromagnetic interference shielding

Xia, Bin; Wang, Zhe; Wang, Tingting; Chen, Shuaishuai; Wu, Han; Zhang, Binbin; Si, Yunfa; Chen, Zibo; Li, Bao-Wen; He, Daping

doi:10.1016/j.isci.2022.105001

Cited by 5 publications

(5 citation statements)

References 41 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the enhanced conductivity of the MXene film is significantly achieved through this mechanism. [ 35 ] This ultrahigh electric conductivity of our MX‐GO(l/s) film also outperforms many reported MXene‐based films as depicted in Figure 4b, providing it with more potential applications. [ 42–46 ] Apart from the electric conductivity, the film stability is another crucial factor that needs to be taken into account owing to the possible operation conditions of these MXene film‐based devices.…”

Section: Resultsmentioning

confidence: 58%

“…The repulsive force makes the wrinkled surface of MXene nanosheets become flat and the interlayer spacing becomes smaller, thereby improving the conductivity of the composite film. [35][36] In terms of the GO(s) nanosheets, they compact the porous structure of the MX film by filling the interlayer gaps between MXene nanosheets via the intercalation process, which further improves the electrical conductivity of the composite film. [37] By simultaneous addition of GO(l) and GO(s) with an appropriate ratio, the synergy between electrostatic interaction and intercalation could transform the MXene layered structure from a randomly undulating and porous state into a flat and dense one, achieving synergistic densification.…”

Section: Resultsmentioning

confidence: 99%

“…It was previously reported by our group that by introducing graphene oxide (GO) as a bridging agent, densification of the MX films can be achieved, resulting in a 1.7-fold increase in conductivity compared to that of the pure MX film and a retention ratio of 88.7% in conductivity after 15-day exposure in air. [35] Motivated by the impressive improvement achieved, we intend to further enhance the stability of MXene-based films while maintaining their electrical and mechanical properties. Expectedly, the synergistic effect of electrostatic repulsion and intercalation could be obtained via the rational manipulation of GO flake sizes, [21,[36][37] which has not been systematically studied yet to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mixed‐Sized Graphene Oxides Induce Highly Densified MXene‐Based Films with High Conductivity and Exceptional Stability

Xing,

Si,

Jin

et al. 2024

Adv Materials Technologies

Self Cite

View full text Add to dashboard Cite

MXene‐based films are prevalent in a variety of applications owing to their advantages such as high metallic conductivity and unique mechanical properties. However, the stability issue is the primary drawback that greatly constrains their practical applications. In this study, an MXene‐based film featuring excellent stability, high conductivity, and remarkable flexibility is designed and fabricated. It is worth noting that this film, denoted as MX‐GO(l/s), is afforded via the rational combination of mixed‐sized graphene oxide (GO) nanosheets with MXene layers. Comprehensive explorations reveal that compact and highly dense structures are formed in MX‐GO(l/s), which is ascribed to the synergistic effect of both electrostatic repulsion and intercalation. Furthermore, the exceptional stability of MX‐GO(l/s) is demonstrated by the high retention rates in conductivity under a 90‐day exposure in air and a 12‐h immersion in seawater, which are determined as 98% and 92%, respectively. The radio frequency identification (RFID) antenna based on MX‐GO(l/s) is fabricated and evaluated, showing great potential in practical applications. This study paves the way for the further development of MXene‐based films via controlled addition of the second phase, which is beneficial for their broad application prospects.

show abstract

Section: Resultsmentioning

confidence: 58%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mixed‐Sized Graphene Oxides Induce Highly Densified MXene‐Based Films with High Conductivity and Exceptional Stability

Xing,

Si,

Jin

et al. 2024

Adv Materials Technologies

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results showed that the MXene-modified fabric containing a low concentration of 6 wt % (0.78 mg·cm –2 ) exhibited an excellent electrical conductivity of 5 Ω·sq –1 and had good electromagnetic shielding properties. Xia et al promoted the densification of MXene films by using graphene oxide (GO) as a bridging agent . The conductivity of MXene films increased to approximately 1.6 × 105 S·m –1 , reaching 1.7 times that of the original MXene film.…”

Section: Mxene Unitary Electromagnetic Shielding Materialsmentioning

confidence: 99%

MXene Composite Electromagnetic Shielding Materials: The Latest Research Status

Liu,

Zhao

2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

MXene emerges as a premier candidate for electromagnetic shielding owing to its unique properties as a novel two-dimensional material. Its exceptional electrical conductivity, chemical reactivity, surface tunability, and facile processing render it highly suitable for diverse electromagnetic shielding applications. The research status of MXene and MXene-based electromagnetic shielding materials is systematically discussed in this paper. First, the research status of MXene as a single-component electromagnetic shielding material is briefly introduced. Subsequently, the research status of composite structures constructed by MXene with polymers, carbon derivatives, and ferrites is introduced in detail. Furthermore, the research progress of MXene-based ternary and quaternary composite electromagnetic shielding materials is further focused. Finally, the application of MXene-based composite electromagnetic shielding materials is prospected. A deeper understanding of MXene’s electromagnetic shielding properties is facilitated by this paper, providing the direction for the future development of two-dimensional materials in the design and processing of electromagnetic shielding materials.

show abstract

“…[20][21][22][23] However, the simple insertion of 0 and 2D materials into 2D nanosheets may lead to unstable structure and narrowed water channels, respectively. [24][25][26] Therefore, a more delicate design of membrane structure needs to be explored to further optimize water permeance and sustainability.…”

Section: Introductionmentioning

confidence: 99%

Mixed‐Dimensional Membranes with Double 0D@2D Structures Enable Efficient and Sustainable Water Treatment

Zhang,

Fu,

Wang

et al. 2024

Advanced Sustainable Systems

Self Cite

View full text Add to dashboard Cite

High‐efficiency and sustainable membrane purification technology is highly desirable but unattainable in the field of water treatment. 2D materials are emerging as very promising candidates for water treatment applications. However, membranes assembled by pure 2D materials lack reasonable structural and functional design, usually exhibiting relatively low water permeance, purification performance, and fouling resistance. Here, a mixed‐dimensional membrane is designed to solve the above‐mentioned problems by assembling two kinds of in situ grown 0D@2D functional building blocks of SiO2@GO and TiO2@MXene. Specifically, the obtained membrane exhibits high and maintainable water permeance of 2114 L m−2 h−1 bar−1 as well as high rejection rates toward organic dyes thanks to the plentiful firm water channels constructed by 0D@2D structures and the negative charges on both SiO2@GO and TiO2@MXene, respectively. Moreover, the 0D@2D TiO2@MXene serves as photocatalyst, rendering the composite membrane intriguing self‐cleaning function under UV irradiation, which is verified by the high recovery ratios of water permeance (97.5%) and dye interception rate (98.7%). Thus, this work offers a promising approach for the design of highly efficient and sustainable membrane for separation and purification purposes.

show abstract

Bridging sheet size controls densification of MXene films for robust electromagnetic interference shielding

Cited by 5 publications

References 41 publications

Mixed‐Sized Graphene Oxides Induce Highly Densified MXene‐Based Films with High Conductivity and Exceptional Stability

Mixed‐Sized Graphene Oxides Induce Highly Densified MXene‐Based Films with High Conductivity and Exceptional Stability

MXene Composite Electromagnetic Shielding Materials: The Latest Research Status

Mixed‐Dimensional Membranes with Double 0D@2D Structures Enable Efficient and Sustainable Water Treatment

Contact Info

Product

Resources

About