Design and development of ultra-sensitive, dynamically stable, multi-modal GnP@MXene nanohybrid electrospun strain sensors

An ultra-sensitive and stable electrochemical sensor with an expanded working range via in situ assembly of 3-D structures based on MXene/GnR nanohybrids

“…The through-plane ( Z direction) conductivity was measured using a dielectric analyzer over the sweep frequency range of 10 5 to 10 −1 Hz and the conductivity at 0.1 Hz was reported. 22 The results indicate that unlike conventional MX@GnR-U and MX@GnR-P sensors that only showed conductivity in the in-plane XY direction, the samples fabricated via the in situ decoration technique showed uniform conductivity in the XYZ direction, specifically through the thickness, which again validates the efficiency of the in situ coating. Besides, the samples with greater MXene content showed a higher in-plane as well as surface conductivity ( XY direction), while those with more GnR demonstrated a higher through-plane conductivity.…”

“…50 The interlayer distance, calculated using Bragg's law ( d = nλ /2 sin θ ), reduced to half (16.63 Å to 7.5 Å) from the MAX phase to MXene. 22,44 These pieces of information verify the successful etching process to obtain MXene from the MAX phase. 42 The morphology of the as-synthesized Ti 3 C 2 T x flakes was studied via laser particle size analysis (PSA) and atomic force microscopy (AFM) with the results shown in Fig.…”

Enhanced electrical properties of microcellular polymer nanocomposites via nanocarbon geometrical alteration: a comparison of graphene nanoribbons and their parent multiwalled carbon nanotubes

“…However, by thermal reduction at 900 1C, the area ratio of sp 2 and sp 3 hybridized carbon atoms (i.e., CQC and C-C at 284.6-285.5 eV) increased to B77% in GNRs from B30% in the case of GONRs, indicating the removal of its carbonyl groups. 31,32 This effect is also evident in the XRD spectrum of GNRs (Fig. 2B), where a shift of the (002) diffraction peak to 25.941 is observed because of the decreased interlayer distance after thermal reduction.…”

Synergistical thermal modulation function of 2D Ti3C2 MXene composite nanosheets via interfacial structure modification

“…Then, 1g Ti 3 AlC 2 was added into the mixture and the reaction occurred at 40°C for 24 h. Rinsing the MXene slurry with deionized water until PH = 6, and then sonicating the solution for 3 h in the N 2 atmosphere and vacuum filter to obtain the MXene powder. It is to be noted that the lateral size of the nanosheets in the powder can be controlled by the time of LiF corrosion and ultrasound during the etching process ( Gogotsi and Anasori, 2019 ; Mohseni Taromsari et al., 2022 ). The dried MXene powder was prepared as MXene dispersion of 8 mg/mL.…”