Hierarchical pseudo-cubic hematite nanoparticle as formaldehyde sensor

Synthesis of iron molybdate from molybdenum spent catalyst and evaluation of its electrochemical properties

“…The Mo 3d spectra show no evidence of splitting or broadening within the resolution of the instrument, indicating that the Mo was present in a single environment in the surface region. From Figure 5b, it can clearly be observed that two shake‐up satellite peaks at 724.13 and 711 eV assigned to peaks for Fe 2p 3/2 and Fe 2p 1/2 , respectively 29 . Peaks attributable to oxides and chemisorbed oxygen can be seen.…”

α‐Fe2O3 Polyhedral Nanoparticles Enclosed by Different Crystal Facets: Tunable Synthesis, Formation Mechanism Analysis, and Facets‐dependent n‐Butanol Sensing Properties

“…Figure 3j shows the SAED pattern of the bottom particle. The diffraction spots can be attributed to the (012), (110), (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) planes and their equivalent planes with the electron Figure 3k is the HRTEM image of the region k in Figure 3i. Three sets of clear lattice fringes parallel to the three edges of the polyhedral particle with the interplanar distances of 0.37 nm, 0.27 nm, and 0.37 nm can be observed.…”

“…As an important n ‐type semiconductor with bandgap of 2.1 eV, hematite (α‐Fe 2 O 3 ) nanomaterials have attracted considerable attention due to its wide potential applications in many fields, such as magnetic devices, catalytic/photocatalytic fields, pigments, gas sensing, photo anode, and rechargeable lithium‐ion batteries . In recent years, α‐Fe 2 O 3 has been developed as one of the promising gas‐sensing materials due to their nontoxicity, low cost, high chemical stability and high sensitivity , .…”

Metal doped mesoporous FeOOH nanorods for high performance supercapacitors

“…Samples were synthesized by adopting a previously reported synthesis method. 4,29 Standard solutions of metal salts in deionized water were prepared, and these solutions were used in different stoichiometric amounts for precipitation. Hierarchical iron precursors with different morphologies were initially synthesized using a solution-based sol-gel method.…”

“…The sample C0 was synthesized following the previous method reported in our earlier manuscript. 29 The amounts of various precursors EG : Iron : Cobalt were maintained at (50 : 45 : 5) ml for sample C1 and (50 : 35 : 15) ml for sample C2 in 100 ml salt solution. The doping % was calculated as 1% for C1 sample and 3.6% for C2 sample via AAS analysis.…”