Efficient preparation for Ni nanopowders by anodic arc plasma

Characterization of NiO nanoparticles by anodic arc plasma method

“…The detailed experimental apparatus was fully illustrated elsewhere [17], it mainly include the stainless steel vacuum chamber, the gas supply device, the DC power supply, the plasma generator with a high frequency initiator, the vacuum pump, the water-cooled collection cylinder and the water-cooled copper crucible. The bulk pure material to be evaporated was laid on the water-cooled copper crucible, which served as the anode.…”

“…Anodic plasma method is an effective feasible process to prepare monodisperse metal nanopowders [17]. Compared with the conventional methods, anodic arc plasma method has many advantages: metal nanopowders prepared by this process with ultra-fine particle size, higher purity, and narrow size distribution, welldispersed and spherical shape.…”

One-Pot Green Synthesis of Ni Nanoparticles and Study of Its Catalytic Activity in the Hydrothermal Reduction of p-Nitrophenol

“…Among these interesting phenomena of metal nano and fine particles, their lower sintering temperature is one of the most important properties for industrial application. [8] As an important transition metal among the various kinds of metal nanoparticles, the preparation of some metal nanoparticles such as nickel, copper, and iron are relatively difficult because they are easily oxidized. Ni nanoparticles have wide-ranging applications in the fields of permanent magnets, magnetic fluids, magnetic recording media, solar energy absorption, fuel cell electrodes, and catalysis.…”

“…Although many methods are used to prepare Ni particles only a few of them are used in its large-scale synthesis. For example Wei et al [8] prepared Ni nanoparticles on a large scale using an anodic arc plasma technique and Pfeil [9] prepared Ni powder by decomposition of nickel carbonyl. [10] As to our knowledge, there are only a few reports of Ni nanoparticles produced by solution reduction method on a large scale.…”

RF plasma synthesis of nickel nanopowders via hydrogen reduction of nickel hydroxide/carbonate

“…Practical application always promotes the synthetic development. A variety of techniques such as chemical reduction, spray pyrolysis, and plasma technique have been employed to produce fine spherical nickel powders [7][8][9][10][11][12][13][14].…”