Hollow Prussian blue analogue/g-C3N4 nanobox for all-solid-state asymmetric supercapacitor

CoFe Prussian blue analogues on 3D porous N-doped carbon nanosheets boost the intercalation kinetics for a high-performance quasi-solid-state hybrid capacitor

“…Recently, Prussian blue analogues (PBAs) have been recognized as suitable electrode materials for energy storage applications. [13][14][15][16] A generic chemical formula of PBAs can be expressed as A x M[Fe(CN) 6 ] z $nH 2 O, where A is an alkali metal, and M is a transition-metal cation, and water molecules are incorporated in the PBA architecture. Their intrinsic open framework structure, including large interstitial sites, is advantageous for facilitating faster kinetics and enhancing durability during electrochemical reactions.…”

Iron–Organic Framework Nanoparticle-Supported Tungstosilicic Acid as a Catalyst for the Biginelli Reaction

“…X-ray photoelectron spectroscopy (XPS) was performed to analyze the elemental composition and chemical states of the MIL-88B and TSA/MIL-88B catalysts. The Fe 2p 1/2 and 2p 3/2 orbits of MIL-88B at 725.57 and 711.90 eV are displayed in Figure a, respectively, which indicates the presence of iron species in the +3 oxidation states. , Another peak positioned around 716.94 eV, called the satellite peak, was also observed . After the TSA immobilization, the binding energy of the Fe 2p spectra shifted to larger energy (Figure c), which indicates that the iron atoms tend to transfer electrons to TSA species through hydrogen bonds and its electron cloud density decreases .…”

Co-doped amorphous NiMoS4 modified with rGO for high-rate performance and long-cycling stability of hybrid supercapacitors

“…After cycling, the R ct and Z w of the device become much greater owing to the exfoliation of the active species from the foamed nickel substrate, leading to poor contact and unfavorable charge transfer. 43…”