Synthesis and Characterization of Phase Pure NiO Nanoparticles via the Combustion Route using Different Organic Fuels for Electrochemical Capacitor Applications

NiO Grained-Flowers and Nanoparticles for Ethanol Sensing

“…No other peaks of other phases or impurities were detected. The assigned reflections correspond to a face centered cubic crystalline structure, quite often achieved upon calcination of a hydrothermally synthesized Ni-containing precursor and common to all the NiO-based sensors of comparison in this paper [15,[17][18][19][20][21][22][23][24][27][28][29][30][31][32]. The full width at half maximum was used to estimate the average size, through the Scherrer formula, D = K λ / β cos (θ), where K is a constant (ca.…”

“…The nanowire morphology is eventually retained upon calcination at 500 • C to afford the corresponding NiO [30]. Other types of NiO preparations by the use of urea include the combustion route [31] and the urea-melt assisted synthesis [32] among others. In the present paper, the hydrothermal synthesis of Ni(OH) 2 with urea is followed by calcination at 400 • C and 600 • C. The NiO calcined at 400 • C, in particular, is characterized by nanoparticles of the order of 10 nm, arranged in a sort of grained-flowers, with sizeable nanoparticle interdistance for gas adsorption and desorption, and ensuing excellent performances in gas-sensing.…”

Combustion synthesis and characterization of Ni-doped LiMn2O4 cathode nanoparticles for lithium ion battery applications

“…This method has been used efficiently to prepare a variety of oxide materials for the application of energy storage devices such as fuel cells, super capacitors and batteries. It not only yields nanomaterials with very high surface areas but also enables uni-form (homogenous) doping of trace amounts of various elements in a single step [21][22][23].…”

Nickel-Graphene Nanoplatelet Deposited on Carbon Fiber as Binder-Free Electrode for Electrochemical Supercapacitor Application

“…Meanwhile, pseudocapacitive materials, such as transition metals and metal oxides, and functionalized or doped graphene, have been studied for use in SCs owing to their larger specific capacitance and higher energy density compared to pristine carbon-based materials [14]. Among various metals and metal oxides, earth-abundant and cost-effective nickel-based nanomaterials have been used widely for energy storage applications due to the high theoretical specific capacitance, electrical conductivity, specific surface area, and variable oxidation state [15][16][17][18][19][20][21][22].…”