As a precursor, FePO4 can be used to produce LiFePO4 on a large scale with high bulk density, discharge rate, and capacity. This can be realized by controlling the crystal size and …

The XRD patterns of the samples are shown in Fig. 2a. The main peaks may be attributed to the Fe 4 (P 2 O 7 ) 3 crystalline phase which referred to the JCPDS card number 360318 [24] .

FePO4 catalysts with branch-like, flower-like, and spherical morphologies were synthesized for the conversion of methyl cellulose to 5-hydroxymethylfurfural (5-HMF) via a hydrothermal route.

Mar 24, 2005 · XRD patterns of monoclinic FePO 4 ·2H 2 O. The crystallographic structure of monoclinic has been reported by Song et al. [6] . The structure of the phosphosiderite is built up from PO 4 tetrahedral and FeO 6 octahedra sharing …

Mar 12, 2013 · In-situ time-resolved X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) are applied to investigate the phase transition mechanism between LiFePO 4 and FePO 4.

Mar 31, 2016 · This model was extended to the domino-cascade model using the static X-ray diffraction (XRD) data and TEM images of electrochemical delithiated LiFePO 4 [15]. According to this model, the phase transition between LFP and FP is susceptible to occur at the phase boundary because of the driving force derived from the lattice mismatch, which ...

XRD patterns of as-obtained FePO 4 were measured by a Bruker D8 Advance X-ray Powder Diffractometer. FI-IR spectra were obtained by a Shimadzu® FTIR spectrometer, IRPrestige-21 model. SEM images were observed using a Hitachi S-3400 eld emission electron microscope. XPS spectra were recorded on a Thermo Fisher Scienti c Escalab 250 ...

Nov 1, 2017 · The effects of sintering temperature and carbon content on the properties of LiFePO 4 /C composite are compared by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and charging–discharging test.

The synthesized powders' crystal structure and microstructure are studied using X‐ray diffraction (XRD), Fourier transformation spectroscopy (FTIR), and a field effective scanning electron ...

Oct 21, 2020 · The study is conducted using ex situ and in situ X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) techniques. The Rietveld refinements are performed on ex situ XRD data of electrode materials collected at various stages of the first charge–discharge cycle.