Charge transfer induced polymerization of EDOT confined between 2D titanium carbide layers

Chen, Chi; Boota, Muhammad; Xie, Xiuqiang; Zhao, Meng‐Qiang; Anasori, Babak; Ren, Chang E.; Liu, Miao; Jiang, Jianjun; Gogotsi, Yury

doi:10.1039/c7ta00149e

Cited by 155 publications

(138 citation statements)

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Section: Mxene-metal Sulfides Compositesmentioning

confidence: 99%

“…[203] In the in situ polymerization process, the highest occupied molecular orbitals (HOMOs) and the lowest unoccupied molecular orbitals (LUMOs) of the substrate (MXene) and monomer are shown in Figure 7f, as well as the two main types of electron transfer. [204] Boota and co-workers polymerized pyrrole on surface of Ti 3 C 2 T x to form Ti 3 C 2 T x /PPy composite by physical agitation. It is beyond doubt that in the blending process, the monomer needs to be as adjacent as possible to MXene for electron transfer to complete the polymerization.…”

Section: Mxene-polymer Compositesmentioning

confidence: 99%

“…In type I electron transfer, electrons are shifted from high-energy orbits (HOMOs) in the monomer to lower-energy orbits (LUMOs) in the MXene, whereas in type II, electrons are shifted from high-energy orbits (HOMOs) in the MXene to lower-energy orbits (LUMOs) in the monomer. [204] Moreover, the PPy and Ti 3 C 2 T x layers are in an alternately aligned arrangement. [204] Boota and co-workers polymerized pyrrole on surface of Ti 3 C 2 T x to form Ti 3 C 2 T x /PPy composite by physical agitation.…”

Section: Mxene-polymer Compositesmentioning

confidence: 99%

“…The three composites all show better reversible capacity than the bare Ti 3 C 2 T x films and better cycling stability than the corresponding oxides. [204] Adv. Due to the contribution of metal oxides to the entire capacity and maintenance of the framework of the Ti 3 C 2 T x films, the composites exhibit outstanding performance.…”

Section: Lithium-ion Batteries Applications Of Mxene-based Compositesmentioning

confidence: 99%

“…Of the three composites, the Ti 3 C 2 T x /NiCo 2 O 4 composites from spray coating had the most outstanding performance due to their particular sandwich-like assembly. [204] Copyright 2017, Royal Society of Chemistry. It is worth noting that the in situ growth method (hydrothermal method) may lead to the oxidation of Ti 3 C 2 T x to forms TiO 2 , which may cause the structure to collapse.…”

Section: Lithium-ion Batteries Applications Of Mxene-based Compositesmentioning

confidence: 99%

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MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

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et al. 2019

Adv Materials Inter

249

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The family of 2D transition metal carbides, nitrides, and carbonitrides (collectively called MXenes) is rapidly studied since the initial synthesis of Ti3C2Tx (MXene). The surface of MXenes etched by hydrofluoric acid has hydrophilic groups (F, OH, and O), which leads the surface to be negatively charged. Consequently, the negatively charged surface can facilitate the compounding of MXenes with other positively charged materials and prevent MXenes from aggregating with some negatively charged substances, thus promoting the formation of a stable dispersion. The MXene‐based composites have better electrochemical performance than both precursors due to synergistic effects. This review elaborates and discusses the development of MXene‐based composites. It is aimed to summarize the various methods of fabricating MXene‐based composites. The applications of MXene‐based composites in batteries and supercapacitors are presented along with analysis of their excellent electrochemical performances. Finally, the authors propose the approach for further enhancing the electrochemical performances of MXene‐based composite electrode materials.

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Section: Mxene-metal Sulfides Compositesmentioning

confidence: 99%

Section: Mxene-polymer Compositesmentioning

confidence: 99%