Microwave-assisted synthesis of nickel nanoparticles

Xu, Wei; Liew, Kong Yong; Liu, Hanfan; Huang, Tao; Chun-tao, Sun; Zhao, Ye

doi:10.1016/j.matlet.2007.12.057

Cited by 71 publications

(46 citation statements)

References 20 publications

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“…[61][62][63] They can be synthesized in many different ways, such as pyrolysis [64] or sputtering, [65] but the most commonw ay is chemical reduction of NiCl 2 (sometimes microwave assisted) with reducing agentss uch as hydrogen, hydrazine and NaBH 4 ,i nt he presence of stabilizers such as hexadecylamine (HAD) and trioctylphosphine oxide (TOPO). [66][67][68][69] In this work, Ni nanoparticles were synthesized electrochemically. The electrochemical synthesis of transition metal nanoparticles has been described in the literature before.M ost often they are synthesized by electroreduction within at emplate.…”

Section: Characterization Of Nanoparticlesmentioning

confidence: 99%

Liquid Nickel Salts: Synthesis, Crystal Structure Determination, and Electrochemical Synthesis of Nickel Nanoparticles

Sniekers

Verguts

Brooks

et al. 2015

Chemistry A European J

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New nickel-containing ionic liquids were synthesized, characterized and their electrochemistry was investigated. In addition, a mechanism for the electrochemical synthesis of nanoparticles from these compounds is proposed. In these so-called liquid metal salts, the nickel(II) cation is octahedrally coordinated by six N-alkylimidazole ligands. The different counter anions that were used are bis(trifluoromethanesulfonyl)imide (Tf2 N(-) ), trifluoromethanesulfonate (OTf(-) ) and methanesulfonate (OMs(-) ). Several different N-alkylimidazoles were considered, with the alkyl sidechain ranging in length from methyl to dodecyl. The newly synthesized liquid metal salts were characterized by CHN analysis, FTIR, DSC, TGA and viscosity measurements. An odd-even effect was observed for the melting temperatures and viscosities of the ionic liquids, with the complexes with an even number of carbon atoms in the alkyl chain of the imidazole having a higher melting temperature and a lower viscosity than the complexes with an odd number of carbons. The crystal structures of several of the nickel(II) complexes that are not liquid at room temperature were determined. The electrochemistry of the compounds with the lowest viscosities was investigated. The nickel(II) cation could be reduced but surprisingly no nickel deposits were obtained on the electrode. Instead, nickel nanoparticles were formed at 100 % selectivity, as confirmed by TEM. The magnetic properties of these nanoparticles were investigated by SQUID measurements.

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Section: Characterization Of Nanoparticlesmentioning

confidence: 99%

Liquid Nickel Salts: Synthesis, Crystal Structure Determination, and Electrochemical Synthesis of Nickel Nanoparticles

Sniekers

Verguts

Brooks

et al. 2015

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…Secondly, EG possesses high dielectric constant which can be rapidly heated under microwave irradiation conditions [29]. Furthermore, hydrazine had also been used as an efficient reducing agent [30]. Ni(Ac) 2 and GO nanosheets were reduced by the mixed reductants of EG and hydrazine hydrate (N 2 H 4 Á H 2 O).…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted synthesis of graphene–Ni composites with enhanced microwave absorption properties in Ku-band

Zhu

Sun²,

et al. 2015

Journal of Magnetism and Magnetic Materials

145

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“…4 The preparation of metal nanoparticles is another major eld of microwave application. 5 The synthesis of many metal nanoparticles such as Au, [6][7][8][9] Ag, 10-13 Pt, 10 Ni, 11,[14][15][16] Co, 11 and Fe…”

Section: Introductionmentioning

confidence: 99%

Utilization of the microwave electric or magnetic field in the synthesis of monometallic and bimetallic nanoparticles

2015

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The wet synthesis of mono-disperse Ag, Ag-Ni, and Pd-Ag nanoparticles has been performed employing glycol solutions containing [Ag(NH 3 ) 2 ]+ and a second metal cation Mn + (M ¼ Ag, Na, Al, Ni or Pd) under microwave irradiation in a predominately electric (E-) or a predominately magnetic (H-) field. No specific effects of the microwave E-field and H-field on the rate of product formation have been observed. But the synthesis of Ag-Ni alloy particles in the E-field and the H-field resulted in products with different particle size distribution, thus possibly indicating specific field effects.

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Microwave-assisted synthesis of nickel nanoparticles

Cited by 71 publications

References 20 publications

Liquid Nickel Salts: Synthesis, Crystal Structure Determination, and Electrochemical Synthesis of Nickel Nanoparticles

Liquid Nickel Salts: Synthesis, Crystal Structure Determination, and Electrochemical Synthesis of Nickel Nanoparticles

Microwave-assisted synthesis of graphene–Ni composites with enhanced microwave absorption properties in Ku-band

Utilization of the microwave electric or magnetic field in the synthesis of monometallic and bimetallic nanoparticles

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