Purple nanometrics pigments based on cobalt-doped manganese molybdate: Synthesis, characterization, structural, thermal, optical, colorimetric and chemical properties

Lakhlifi, Hind; Jabbar, Youssef El; Guillemet‐Fritsch, Sophie; Durand, Bernard; Er-Rakho, Lahcen; Ouatib, Rachida El

doi:10.1016/j.molstruc.2021.131458

Cited by 8 publications

(2 citation statements)

References 41 publications

(42 reference statements)

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“…Manganese molybdate was synthesized via a facile cosolvent coprecipitation method without the use of an additive or pH adjustments, as described in the literature. − The XRD profiles of the synthesized MnMoO 4 powder and electrode were indexed as α-MnMoO 4 (PDF card no: 00-027-1280) (Figure A). Representative SEM and TEM images (Figure B–E) of the pristine material and electrodes show uniform nanorods with widths of 160 ± 40 nm and lengths of 3.3 ± 1.4 μm that are evenly dispersed in a matrix of MWCNTs.…”

Section: Resultsmentioning

confidence: 99%

Manganese Molybdate Cathodes with Dual-Redox Centers for Aqueous Zinc-Ion Batteries: Impact of Electrolyte on Electrochemistry

Kuang

Yan

Housel

et al. 2022

ACS Sustainable Chem. Eng.

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Although bimetallic oxides have been shown to be beneficial as electrode materials in battery systems over their monometallic oxide counterparts, the implementation of metal molybdates with dual-redox centers has not been widely studied in aqueous rechargeable Zn-ion batteries. Manganese molybdate (MnMoO4) was synthesized via facile cosolvent coprecipitation and implemented as a cathode material for the first time in this system using 3 M ZnSO4 and 3 M ZnCl2 electrolytes to investigate the impact of the anion. In the two electrolytes, both manganese and molybdate metal centers were determined to be redox active using Mn and Mo K-edge operando X-ray absorption spectroscopies (XAS), with the corresponding voltage plateaus at 1.4 and 0.5 V, respectively. The difference in anions resulted in a preference regarding the active redox center, with the sulfate based preferring Mo redox and chloride based preferring Mn redox. Additionally, the redox reactions also differ in rate dependency, with Mn and Mo redox reactions preferring slow and fast current rates, respectively. In both systems, Mn redox was seen to be the more stable mechanism over prolonged cycling. The preference was related to the dissolution of the MnMoO4 material by applying Pearson’s hard–soft acid–base theory and considering the solubilities of the respective salts.

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Section: Resultsmentioning

confidence: 99%

Manganese Molybdate Cathodes with Dual-Redox Centers for Aqueous Zinc-Ion Batteries: Impact of Electrolyte on Electrochemistry

Kuang

Yan

Housel

et al. 2022

ACS Sustainable Chem. Eng.

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“…The weak Raman peak observed at 278 cm −1 is attributed to external free rotation mode R (Ag) [51]. For the ZnCoMo-0.6-600 sample, The most high-intensity bands observed at 915 and 878 cm −1 correspond to the Mo-O (ν 1 (Ag)) symmetric stretching vibration [52]. Those located at 831 and 787 cm -1 are assigned to O-Mo-O antisymmetric stretching vibrations modes [53].…”

Section: Ftir and Raman Spectroscopymentioning

confidence: 93%

Electronic, magnetic, optical properties, and morphological characteristics of nanocrystalline based on zinc–cobalt molybdate prepared by soft chemistry route

Lakhlifi

Jabbar

Natik

et al. 2022

Journal of Crystal Growth

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Enhancing photodegradation of methylene blue and reusability using CoO/ZnO composite nanoparticles

Rini¹,

Istiqomah²,

Sunarta³

et al. 2023

Case Studies in Chemical and Environmental Engineering

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Purple nanometrics pigments based on cobalt-doped manganese molybdate: Synthesis, characterization, structural, thermal, optical, colorimetric and chemical properties

Cited by 8 publications

References 41 publications

Manganese Molybdate Cathodes with Dual-Redox Centers for Aqueous Zinc-Ion Batteries: Impact of Electrolyte on Electrochemistry

Manganese Molybdate Cathodes with Dual-Redox Centers for Aqueous Zinc-Ion Batteries: Impact of Electrolyte on Electrochemistry

Electronic, magnetic, optical properties, and morphological characteristics of nanocrystalline based on zinc–cobalt molybdate prepared by soft chemistry route

Enhancing photodegradation of methylene blue and reusability using CoO/ZnO composite nanoparticles

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