Near-Monodisperse Ni-Cu Bimetallic Nanocrystals of Variable Composition: Controlled Synthesis and Catalytic Activity for H2 Generation

Journal Article · Tue Jul 22 04:00:00 EDT 2008 · Journal of Physical Chemistry C

DOI:https://doi.org/10.1021/jp805788x· OSTI ID:946064

Zhang, Yawen; Huang, Wenyu; Habas, Susan E; Kuhn, John N; Grass, Michael E; Yamada, Yusuke; Yang, Peidong; Somorjai, Gabor A

Near-monodisperse Ni{sub 1-x}Cu{sub x} (x = 0.2-0.8) bimetallic nanocrystals were synthesized by a one-pot thermolysis approach in oleylamine/1-octadecene, using metal acetylacetonates as precursors. The nanocrystals form large-area 2D superlattices, and display a catalytic synergistic effect in the hydrolysis of NaBH{sub 4} to generate H{sub 2} at x = 0.5 in a strongly basic medium. The Ni{sub 0.5}Cu{sub 0.5} nanocrystals show the lowest activation energy, and also exhibit the highest H{sub 2} generation rate at 298 K.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Chemical Sciences Division; Materials Sciences Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 946064
• Report Number(s): LBNL-1373E
• Journal Information: Journal of Physical Chemistry C, Journal Name: Journal of Physical Chemistry C
• Country of Publication: United States
• Language: English

Related Subjects

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