Cationic doping induced sulfur vacancy formation in polyionic sulfide for enhanced electromagnetic wave absorption

Catfish Effect Induced by Anion Sequential Doping for Microwave Absorption

“…[27] These structural defects alter the rehybridized electron orbitals and bond lengths by inducing Gaussian curvature in situ, possibly leading to a stronger electron redistribution than doping. [28] The study of defects acting on MA is an emerging subdivision field, but unfortunately still retains in the preliminary understanding, e.g., anion/cation vacancies, [29,30] defect concentration, [31] etc. Compared with in situ doping, ex situ doping, like an intruder, always forces the target subject to accept itself through postprocessing technology.…”

Three-dimensional biotemplate-loaded nickel sulfide vacancies engineered to promote the absorption of electromagnetic waves

“…S2, ESI†) confirmed that the Ni x S y @De samples obtained after sulfurization contained a large number of sulfide vacancies. 35 The high-angle annular dark-field scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy (HAADF-EDS) image shown in Fig. 3f reveals that Ni x S y @De is composed of Ni, S, O, and Si elements, further confirming the successful sulfurization process.…”

“…S2, ESI †) confirmed that the Ni x S y @De samples obtained after sulfurization contained a large number of sulfide vacancies. 35 The high-angle annular dark-field scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy (HAADF-EDS) image shown in Fig. 3f 41 Furthermore, the chemical bond types within these three samples were investigated in greater detail through FTIR spectroscopy.…”

“…Sulfur vacancies not only greatly improve the electrical conductivity, 34 but also promote the formation of electric dipoles, increase the polarization loss caused by defects in the electromagnetic field environment, and greatly improve the absorption properties of EMW. 35,36 Therefore, we aimed to construct an efficient composite microwave absorption material consisting of TMDs and diatomite by modulating the sulfur vacancy concentration.…”

The Use of Agricultural Residues of Vigna Peel in the Treatment of Environmental Pollution Resulting from Cadmium Ions by Adsorption Method

“…When analyses of VP were found to include carbon at a concentration of 61.07 percent, hydrogen at 11.22 percent, oxygen at 23.17 percent, nitrogen at 1.39 percent, and sulfur at 3.15 percent, according to the results of elemental analysis [15]. Because sulfur groups are weak bases and have a chemical affinity for heavy metals, the presence of sulfur in VP enables us to consider it as a candidate for use as an adsorbent [16]. Figure 1 presents the FT-IR spectrum of VP.…”