Impact of process conditions on the electrochemical performances of NiMoO4 nanorods and activated carbon based asymmetric supercapacitor

Part I: NiMoO4 Nanostructures Synthesized by the Solution Combustion Method: A Parametric Study on the Influence of Synthesis Parameters on the Materials’ Physicochemical, Structural, and Morphological Properties

“…At pH = 6, the sample exhibited a large presence of agglomerated nanorods with a diameter and length of 25–35 nm and 150–250 nm, respectively. The synthesis of NiMoO 4 nanorods has been reported previously by several researchers [ 18 ], although none used the SCS method. Notably, the hydrothermal method was used in the pH range of 5–6 to produce α-NiMoO 4 nanorods similar in size and shape to what we observed in the current study [ 73 ].…”

“…That is because catalytic materials, among other things, are greatly influenced by the method of preparation since experimental conditions can impact an extensive range of properties [ 9 ]. The proper identification of the optimum experimental parameters in the synthesis procedure of a catalyst would contribute to cost reduction, a facile process, and enhanced products [ 18 ]. However, due to the extreme complexity, interrelation, and influence of the various parameters that control the process, a better understanding of the synthesis methodology would only be possible through a systematic research study, which evidences the effect of one variable while holding the other key parameters strictly constant.…”

Methods of obtaining nickel molybdates and composites of molybdate/carbon material for electrodes of hybrid supercapacitors (Review)

“…The authors [35] obtained nanorods NiMoO4 of different degrees of crystallinity. Hydrothermal synthesis was performed at different temperatures of 120, 150 and 180 °C for time of 6, 12 and 18 hours, respectively.…”

Interfacially coupled thin sheet-like NiO/NiMoO4 nanocomposites synthesized by a simple reflux method for excellent electrochemical performance

“…14–16 NiMoO 4 (NMO), in particular, shows better prospects and is therefore widely reported due to its high theoretical specific capacitance (∼2500 F g −1 ), reasonably good electrical conductivity due to the presence of Mo, chemical inertness, low toxicity, low cost, and the availability of multiple oxidation states. 14,15,17–19 NMO commonly forms two polymorphs having a monoclinic structure with the space group C 2/ m at atmospheric pressure: α-NMO (low temperature) and β-NMO (high temperature). 17,19 Moreover, they differ primarily due to the coordination sites of Mo 6+ , which is distorted octahedral in the α phase and distorted tetrahedral in the β phase.…”