Impact of novel fuel extract variation on structural, electrical and electrochemical properties of nanostructured molybdenum oxide flakes

Harini, R.; Latha, H K E

doi:10.1016/j.matpr.2021.04.211

Cited by 2 publications

(5 citation statements)

References 15 publications

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“…XRD studies XRD patterns of nanostructured Cu doped MoO3 flakes of different doping concentrations such as 0, 2, 4, 6, 8 and 10 % of Cu is shown in Figure 1. The most distinct and good intense peaks were observed at diffractive phase (2θ) 12.76, 23.32 , 25.70 and 27.335 which were corresponds to JCPDS card number 05-0508 and their respective (h k l) planes were at (020), (110), (040) and (021) of orthorhombic crystal structure [11,18,19]. The XRD data also reveals there were no CuO peaks which indicate the added Cu dopant incorporated into MoO3 lattice without disturbing the lattice structure.…”

Section: Resultsmentioning

confidence: 92%

“…The crystallite size of the synthesized nanostructured Cu doped MoO3 flakes were ECS Transactions, 107 (1) 15141-15154 (2022) calculated using Debye-Scherrer equation. In addition, the important micro-structural parameters such as full width at the half maximum (FWHM) [18], micro-strain (ε), dislocation density and lattice parameters values were calculated for (021) plane [20,21]. The Table I presents Crystallite size, micro-strain, lattice parameters and dislocation density for synthesized Cu doped MoO3 for (021) plane.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 3 shows the FT-IR transmittance spectrum in the mid-range 400-2500 cm -1 . The strong and distinct vibrations were observed at 594, 861 and 993 cm −1 , allied respectively with the stretching-0mode of oxygen (O) allied with 3 metal atoms, the stretching mode of oxygen (O) in the Mo-O-Mo units, and the Mo=O stretching mode of a orthorhombic α-MoO3 phase [18,22]. Two less distinct vibration were also detected at 1366 and 1636 cm −1 , which were associated with the vibration mode of the Mo-OH bond and other bending mode of adsorbed water respectively.…”

Section: Ft-ir Studiesmentioning

confidence: 99%

“…The precursor ammonium heptamolybdate tetrahydrate (AMo) (NH4)6Mo7O24.4H2O of purity 98.10%, fuel Shorea robusta leaves extract and different weight percentage dopant copper nitrate trihydrate ( 0, 2, 4, 6, 8 and 10 wt%) were used for the preparation of Cu doped MoO3 nanostructured flakes by eco-friendly green combustion method. The precursor and fuel were taken in the ratio 1:0.5 [18] in a neat crucibles and according to different weight percentage Cu dopant ( 0, 2, 4, 6, 8 and 10 wt%) were added. 10 ml DD water was added to crucibles and stirred continuously for 10 minutes to obtain homogeneous solution.…”

Section: Experimental Conditions Experimental Deposition Conditionsmentioning

confidence: 99%

“…higher frequencies(7 MHz) and oblique line in the low frequencies (100 mHz) is shown in Figure8. The calculated impedance is tabulated in TableIIIfor synthesized Cu doped MoO3.The impedance for 0% Cu doped MoO3 was high (300.40 Ω) compared to 2, 4, 6, 8 and 10% Cu doped MoO3[18], which prominently signifies Cu doping reduces the impedance and hence increased conductivity. It was observed that for 6% Cu doped MoO3 the calculated impedance was less (180.56 Ω) compared to other synthesized Cu doped MoO3.…”

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confidence: 96%

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Impact of Green Synthesized Copper Doped Nanostructured Molybdenum Oxide Flakes on Micro Structural, Electrical, and Electrochemical Properties

Harini¹,

Hke²,

Manjunatha³

2022

ECS Trans.

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In the present work, the different weight percentage (0, 2, 4, 6, 8, and 10 wt %) of copper (Cu) incapacitated MoO3 flakes were successfully green synthesized by combustion technique using precursor ammonium heptamolybdate tetrahydrate, fuel Shorea Robusta leaves extract, and copper nitrate trihydrate as dopant. XRD analysis reports that the synthesized Cu doped MoO3 material exhibits orthorhombic configuration with high crystallanity nature and the XRD pattern show a shift in diffractive peak towards lower diffractive angle as the Cu dopant percentage increases. FT-IR analysis shows the presence of stretching bond between molybdenum and oxygen atom (Mo=O) at 993cm-1. From SEM morphological analysis flake like structure was observed. The HRTEM studies shows d-spacing of 0.20 nm for 6 wt% Cu doped MoO3 flakes with irregular shapes. UV-DRS studies reports the bandgap ranges from 3.15 eV to 3.36 eV for different weight percentage Cu doped MoO3 flakes and for 6 wt% Cu doped MoO3 flakes obtained bandgap is less (3.15 eV). EIS studies reveal the impedance ranges from 180 Ω to 300 Ω. The bandgap and impedance results shows good conductivity for 6 wt% Cu doped MoO3 flakes compared to other synthesized weight percentage nanostructured Cu doped MoO3 flakes. The improved bandgap and impedance were observed for 6 wt% Cu doped MoO3. Hence, 6 wt% Cu doped MoO3 can be employed as anode electrode material for LIBs.

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Section: Resultsmentioning

confidence: 92%