Strategies for electromagnetic wave absorbers derived from zeolite imidazole framework (ZIF-67) with ferrocene containing polymers

Synergistic Polarization Loss of MoS2‐Based Multiphase Solid Solution for Electromagnetic Wave Absorption

“…[ 29 ] Besides the carbon phase modification introduced above, the PDA also attained the substitutional solid solution by the S replacement with N. As is shown in Figure 2d, the XPS peaks at 398.9, 399.9, and 401.5 eV can be assigned to the pyridinic (N), pyrrolic (NH), and graphitic (RNH 2 ) groups respectively inheriting from the PDA. [ 30 ] More importantly, the characteristic peak of Mo–N at 397.8 eV confirmed the construction of N coordination in MoS 2 lattice by substituting the S occupancy. [ 31 ] The XRD Rietveld refinement of C@MoS 2 was performed to study the N substitution effect of PDA in details (Figure S4 and Table S2, Supporting Information).…”

“…and 401.5 eV can be assigned to the pyridinic (N), pyrrolic (NH), and graphitic (RNH 2 ) groups respectively inheriting from the PDA. [30] More importantly, the characteristic peak of Mo-N at 397.8 eV confirmed the construction of N coordination in MoS 2 lattice by substituting the S occupancy. [31] The XRD Rietveld refinement of C@MoS 2 was performed to study the N substitution effect of PDA in details (Figure S4 and Table S2, Supporting Information).…”

Synthesis of Non‐precious N‐doped Mesoporous Fe3O4/CoO@NC Materials towards Efficient Oxygen Reduction Reaction for Microbial Fuel Cells

“…The XPS survey spectra (Figure 5a) suggest the existence of elemental Co, Fe, C, N, and O in the Fe 3 O 4 /CoO@NCÀ T catalysts [42], which indicates that cobalt, iron, and nitrogen were doped into the porous carbon material. The C 1s spectrum exhibited three main peaks at 284.8 eV, 285.1 eV, and 288.3 eV, which correspond to C=C, CÀ N, and C=N bonds, respectively [43][44][45]. The N1s spectra can be divided into four main peaks, which can be assigned to pyridinic N (398.8 eV), CoÀ N (FeÀ N) (399.1 eV), pyrrolic N (400.1 eV), and graphic N (401.6 eV), respectively [46].…”

High performance microwave absorption of light weight and porous non-carbon-based polymeric monoliths via a gel emulsion template

“…56,57 Ferrocene is a typical organometallic compound with specific electrochemical properties, and is composed of central metal Fe 2+ ions as electron donors and two cyclopentadienes as electron acceptors, which can not only promote electron delocalization effectively but also facilitate multi-interfacial polarization and conductivity due to the π-conjugation sites. 58,59 Therefore, compared with carbonbased materials, this strategy does not need high temperatures to carbonize materials for enhancing the microwave-absorbing characteristics, which is very important for energy conservation. Moreover, the drying method of this strategy is more economical and convenient and does not consume as much energy as freeze-drying or supercritical drying methods.…”

“…However, there are few reports on the involvement of ferrocene in MA materials. 59 Because of the mobility and volatility of ferrocene-obtaining molecules based on Fick's law, it was a great challenge to apply in engineering the practical application for ferrocene derivatives to obtain uniform dispersion in the targets. 60 Therefore, we designed and synthesized a ferrocene derivative with a diene structure, named di( prop-1en-2-yl)ferrocene (2DPrEnF) (as shown in Scheme 1), which could uniformly disperse and bond in the system to solve the problem of mobility.…”