Hydrangea-like NiMoO4-Ag/rGO as Battery-type electrode for hybrid supercapacitors with superior stability

Synchronous Defect and Interface Engineering of NiMoO4 Nanowire Arrays for High-Performance Supercapacitors

“…To overcome the poor electronic conductivity of pristine NiMoO 4 , various NiMoO 4 /carbon composites have been synthesized by hybridizing NiMoO 4 nanostructures with graphene [ 30 , 31 ], carbon nanotubes [ 32 ], conducting polymers [ 33 ], and porous carbon architectures [ 34 , 35 ] Alternatively, intentional doping of NiMoO 4 with several kinds of heteroatoms such as Mn [ 36 , 37 ], P [ 38 ], Zn [ 39 ], Ce [ 40 ], or the creation of oxygen vacancies [ 14 , 41 , 42 , 43 ] in the lattice have recently been reported. In addition, NiMoO 4 has also been coupled with other metal oxides [ 44 , 45 , 46 , 47 , 48 , 49 ] or sulfides [ 50 , 51 , 52 ] to form heterostructure electrodes for supercapacitors with improved electrochemical performances.…”

Mesoporous β-Ag2MoO4 nanopotatoes as supercapacitor electrodes

“…Crucial to an outstanding charge storage performance is balancing the charges ( Q + = Q − ) produced at the surface of activated carbon and silver molybdate electrodes, which can be done through mass balance theory ( Q = mCV ; eqn (10)). 77,78 where m + and m − are masses (g); Q + and Q − are specific capacities (C g −1 ) of the activated carbon and silver molybdate electrodes, respectively. Then, the specific energy and power were estimated using the following equations.…”

“…The silver molybdate was placed as the positive electrode, activated carbon as the counter electrode, and polyurethane foam soaked in 6 M KOH (due to the starvation of electrolyte ions in 2 M KOH) 75,76 was the separator-cum-charge reservoir.Crucial to an outstanding charge storage performance is balancing the charges(𝑄 + = 𝑄 -) produced at the surface of activated carbon andsilver molybdate electrodes,which can be donethrough mass balance theory (𝑄 = 𝑚𝐶𝑉; equation 10). 77,78 wherem+ and m-are masses (g); Q+ and Q-are specific capacities (C g -1 ) of the activated carbon and silver molybdateelectrodes, respectively. Then, the specific energy and power wereestimated using the following equations.…”

“…Crucial to an outstanding charge storage performance is balancing the charges (Q + = Q À ) produced at the surface of activated carbon and silver molybdate electrodes, which can be done through mass balance theory (Q = mCV; eqn (10)). 77,78…”

Engineering thiospinel-based hollow heterostructured nanoarrays for boosting electrocatalytic oxygen evolution reaction

“…Further studies on the morphology and structure were conducted using high-resolution transmission electron microscopy (HRTEM, JEM-2100F). 27 The crystalline phases of the samples were investigated by powder X-ray diffraction (XRD) with a Bruker D8 Advance diffractometer (Cu Kα radiation, λ = 0.15418 nm). X-ray photoelectron spectroscopy (XPS) was carried out on a Thermo Scientific K-Alpha.…”