Fabrication of Powders and Thin Films of Various Nickel Sulfides by Soft Solution-Processing Routes

Shu-Hong Yu; Masahiro Yoshimura

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Fabrication of Powders and Thin Films of Various Nickel Sulfides by Soft Solution-Processing Routes

机译：Fabrication of Powders and Thin Films of Various Nickel Sulfides by Soft Solution-Processing Routes

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We have demonstrated a soft solution-processing route for selective synthesis of various phases of nickel sulfides, in which a novel liquid-solid interfacial reaction between a nickel substrate and sulfur is involved, and the reaction of the Ni~(2+) ion with sulfur in different solvents at low temperatures (≤200 ℃). Nanostructured Ni_3S_2 thin films, NiS (millerite) nanowhiskers, and NiS_2 single crystals with dodecahedron {101} unit polytype shape were directly synthesized in ethylenediamine. Similar reactions in other solvents were also investigated. In addition, a new molecular precursor Ni(en)_xS_y (where (en) is the ethylene-diamine ligand) with the composition Ni(en)_3S_4 derived in ethylenediamine was found to be an excellent precursor for synthesis of nickel sulfide nanoparticles. The reaction mechanism, phase formation, and transformation process are proposed. Nickel sulfide materials with different phases and special shapes could find applications in catalysis, semiconductors, and magnetic devices.

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《Advanced functional materials》 |2002年第4期|277-285|共9页
作者
Shu-Hong Yu; Masahiro Yoshimura;
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作者单位

Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, MPI Research Campus Golm, D-14424 Potsdam, Germany;

Materials and Structures Laboratory, Center for Materials Design, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, J-Yokohama 226-8503 (Japan);

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正文语种英语
中图分类无线电电子学、电信技术;
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Fabrication of Powders and Thin Films of Various Nickel Sulfides by Soft Solution-Processing Routes

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