Synthesis of Ni Carbide Nanoparticles with Ni₃C-Type Structure in Polyol Solution Containing Dispersant

• Fujieda Shun

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Shinoda Kozo

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Suzuki Shigeru

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Jeyadevan Balachandran

  Department of Materials Science, The University of Shiga Prefecture

書誌事項

タイトル別名

• Synthesis of Ni Carbide Nanoparticles with Ni₃C-Type Structure in Polyol Solution Containing Dispersant

抄録

Nanoparticles of Ni carbide of about 50 nm in diameter were synthesized by the reduction of Ni salt in a polyol solution in the presence of polyvinylpyrrolidone (PVP). It was found that the aggregation of nanoparticles was suppressed when PVP was added to the polyol solution during synthesis. Diffraction peaks of the fcc and hexagonal structures were observed for the specimen synthesized without PVP. On the other hand, no peaks assigned to the fcc structure and no spontaneous magnetization were observed for the specimen synthesized with 50 g/L PVP, although pure bulk Ni are fcc structure and ferromagnetic at room temperature. Additionally, small peaks were observed in the X-ray diffraction pattern at 2θ = 26.2, 35.7 and 47.8°, originated not from the impurity phase but from the hexagonal phase. The specimen synthesized with 50 g/L PVP was fundamentally identified as Ni carbide with a Ni₃C-type structure, as small peaks mentioned above were assigned to super-lattice peaks. The structure parameters of the Ni carbide were refined by Rietveld analysis. It is concluded that the formation of the Ni carbide nanoparticles with Ni₃C-type structure in the polyol solution is enhanced by the addition of PVP.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 53 (10), 1716-1720, 2012

  公益社団法人 日本金属学会

キーワード

• nickel carbide
• polyol
• polyvinylpyrrolidone

詳細情報

• CRID: 1390001204249492992
• NII論文ID: 10031121176
• NII論文ID: 130004824795
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2012160
• COI: 1:CAS:528:DC%2BC38Xhsl2itL3N
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 023977193
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023977193
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/53/10/53_M2012160/_pdf
• 本文言語コード: en
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