Abstract
Herein, we first describe the physical mixture of Cu(OH)2/Fe(OH)3 as a composite catalyst precursor for the dehydrogenation of ammonia borane (AB) in methanol. During the initial period of catalytic reaction, Cu nanoparticles were formed in-situ. The catalytic activity of Cu nanoparticles can be significantly enhanced with the assistance of Fe species and OH−. A maximum turnover frequency (TOF) of 50.3 molH2 moltotal metal−1 min−1 (135.6 molH2 molCu−1 min−1) was achieved at ambient temperature, which is superior to those of previously reported Fe or Cu based systems.
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