Near-Monodisperse Ni−Cu Bimetallic Nanocrystals of Variable Composition: Controlled Synthesis and Catalytic Activity for H<sub>2</sub> Generation

Ya‐Wen Zhang; Wenyu Huang; Susan E. Habas; John N. Kuhn; Michael Graß; Yusuke Yamada; Peidong Yang; Gabor Somorjai

doi:10.1021/jp805788x

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Peidong Yang

University of California, Berkeley

Near-Monodisperse Ni−Cu Bimetallic Nanocrystals of Variable Composition: Controlled Synthesis and Catalytic Activity for H<sub>2</sub> Generation

Article 2008 en

Authors

YZ
Ya‐Wen Zhang
WH
Wenyu Huang
SH
Susan E. Habas

Abstract

1 min read

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.

Near-Monodisperse Ni−Cu Bimetallic Nanocrystals of Variable Composition: Controlled Synthesis and Catalytic Activity for H<sub>2</sub> Generation

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