Achieving super-broad effective absorption bandwidth with low filler loading for graphene aerogels/raspberry-like CoFe2O4 clusters by N doping

Initiating VB‐Group Laminated NbS2 Electromagnetic Wave Absorber toward Superior Absorption Bandwidth as Large as 6.48 GHz through Phase Engineering Modulation

“…The existence of porous structure could extend the transmission path for EMW and promote multiple scattering and reflections, which are beneficial to impedance matching. [60] The HRTEM image (Figure 2j) shows that the interlayer spacing of the sample is 0.24 nm, which corresponds to the (104) lattice facet of NbS 2 , directly proving that the sample obtained is NbS 2 nanomaterials. Furthermore, the energy dispersive X-ray spectroscopy (EDS) spectrum (Figure S6, Supporting Information) obtained in the selected area of the aggregated stacked NbS 2 microspheres shows that sample N-4 is mainly composed of C, O, S, and Nb atoms (with atomic ratios C: O: S: Nb = 28.216: 12.408: 6.971: 52.404 at%), further verifying the previously discussed XPS results.…”

MoS2-Decorated/Integrated Carbon Fiber: Phase Engineering Well-Regulated Microwave Absorber

“…Based on the transmission line theory, if the minimum R L could correspond to impedance matching ratio value (Z =|Z in /Z 0 |) equal 1 at the same frequency, the impedance of this material matches well. The calculation formula is as follows [56][57][58][59]:…”

A ferromagnetic composite of PEDOT:PSS and nitrogen-graphene decorated with copper oxide nanoparticles with high anisotropic thermoelectric properties

“…In fact, the D band arises from the sp 3 carbon defects and/or disorders (lattice distortion), while the G band arises from the graphitic C (in-plane vibration sp 2 carbon hybridization). 34 The I D / I G ratio actually measures the graphitization degree (degree of disorders). 35 Therefore, the values of I D / I G are calculated to be 0.88, 1.05 and 1.09 for GR, NG and CuO NG, respectively.…”