Nanocrystalline nickel nanoparticles

Advanced Materials

Volumn 12, Issue 12, 2000, Pages 878-883

  Zach, Michael P ^a   Penner, Reginald M ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRODEPOSITION; GRAPHITE; HYDROGEN; NANOSTRUCTURED MATERIALS; PARTICLE SIZE ANALYSIS;

HYDROGEN EVOLUTION;

NICKEL;

EID: 0033689922     PISSN: 09359648     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-4095(200006)12:12<878::AID-ADMA878>3.0.CO;2-X     Document Type: Article

References (30)

1. Supported nickel clusters that are smaller than 2 nm in diameter have been prepared with perfect size monodispersity (see for example: U. Heiz, Appl. Phys. A: Mater. Sci. Proc. 1998, 67, 621; U. Heiz, F. Vanolli, A. Sanchez, W. D. Schneider, J. Am. Chem. Soc. 1998, 120, 1668). The synthesis of these particles in the gas phase involves laser evaporation, mass selection, and subsequent deposition at low kinetic energies onto single crystal MgO surfaces. This elegant technique can not be employed to prepare "large" nickel nanoparticles in the 20-500 nm diameter range of interest in this study.
2. Supported nickel clusters that are smaller than 2 nm in diameter have been prepared with perfect size monodispersity (see for example: U. Heiz, Appl. Phys. A: Mater. Sci. Proc. 1998, 67, 621; U. Heiz, F. Vanolli, A. Sanchez, W. D. Schneider, J. Am. Chem. Soc. 1998, 120, 1668). The synthesis of these particles in the gas phase involves laser evaporation, mass selection, and subsequent deposition at low kinetic energies onto single crystal MgO surfaces. This elegant technique can not be employed to prepare "large" nickel nanoparticles in the 20-500 nm diameter range of interest in this study.
3. Two solution phase methods for synthesizing nickel nanoparticles having a similar degree of size monodispersity are the "redox-controlled" and "electrochemical" methods of Reetz and co-workers (see for example: M. T. Reetz, W. Helbig, J. Am. Chem. Soc. 1994, 116, 7401. J. A. Becker, R. Schafer, R. Festag, W. Ruland, J. H. Wendorff, J. Pebler, S. A. Quaiser, W. Helbig, M. T. Reetz, J. Chem. Phys. 1995, 103, 2520. M. T. Reetz, M. Maase, Adv. Mater. 1999, 11, 773), and the so- called "polyol process" of Fiével and co-workers (described in: F. Fiévet, J.-P. Lagier, M. Fietglarz, MRS Bull. 1989, 14, 29. P. Toneguzzo, G. Viau, O. Acher, F. Fievet-Vincent, F. Fiévet, Adv. Mater. 1998, 10, 1032).
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