Fabrication of MnO2-pillared layered manganese oxide through an exfoliation/reassembling and oxidation process

Preparation and capacitance property of MnO2-pillared Ni2+–Fe3+ layered double hydroxides nanocomposite

“…A pillar technology is a useful method to prepare the materials with large surface area and good thermal stability [29], which cannot only synthesise porous materials with novel properties, but also improve the functional activity of pillared agents [30]. Therefore, in this work, we choose Ni 2+ -Fe 3+ LDHs material with high crystallinity and well-defined hexagonal shape as host layer, MnO 2 as guest species, and MnO 2 -pillared Ni 2+ -Fe 3+ layered double hydroxide nanocomposite was successfully fabricated through a intercalation/reduction reaction followed by heating treatment.…”

Versatilein situsynthesis of MnO2nanolayers on upconversion nanoparticles and their application in activatable fluorescence and MRI imaging

“…These results suggested the cleavage of the –HC CH– group of the bound OA. The FT-IR spectrum also showed the characteristic absorbance of the Mn–O stretching vibration at around 470 cm –1 in the spectrum of MnO 2 and both of the oxidized samples, 33 , 34 indicating the existence of MnO 2 on the surfaces of the oxidized UCNPs. On the basis of the above FTIR results, it can be deduced that the OA ligands on the surfaces of UCNPs were oxidized to azelaic acids, and the oxidation process was accompanied by the successful growth of MnO 2 on the surfaces of UCNPs.…”

Microstructure and supercapacitive properties of buserite-type manganese oxide with a large basal spacing

“…Thus, the Mgebuserite electrode exhibits excellent capacitance behavior after 500 cycles. The specific capacitance of the Mgebuserite electrode remains an almost constant value and decreases slightly upon prolonged cycling up to 22,000 cycles, indicating that the structure of the Mgebuserite are maintained even after 22,000 cycles [43]. This is because the diameter of the hydration shell of the Mg 2þ ion is larger than that of the Na þ ion, the intercalation and deintercalation of Na þ ions into the interlayer of the Mgebuserite does not result in significant structural changes.…”