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Synthesis of Ni–Ru Alloy Nanoparticles and Their High Catalytic Activity in Dehydrogenation of Ammonia Borane

Open access
Chen, Guozhu, Desinan, Stefano, Rosei, Renzo, Rosei, Federico, Ma, Dongling·2012·Chemistry – A European Journal
DOI 10.1002/chem.201200292
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Abstract

We report the synthesis and characterization of new NixRu 1−x (x=0.56–0.74) alloy nanoparticles (NPs) and their catalytic activity for hydrogen release in the ammonia borane hydrolysis process. The alloy NPs were obtained by wet‐chemistry method using a rapid lithium triethylborohydride reduction of Ni 2+ and Ru 3+ precursors in oleylamine. The nature of each alloy sample was fully characterized by TEM, XRD, energy dispersive X‐ray spectroscopy (EDX), and X‐ray photoelectron spectroscopy (XPS). We found that the as‐prepared Ni–Ru alloy NPs exhibited exceptional catalytic activity for the ammonia borane hydrolysis reaction for hydrogen release. All Ni–Ru alloy NPs, and in particular the Ni 0.74 Ru 0.26 sample, outperform the activity of similar size monometallic Ni and Ru NPs, and even of Ni@Ru core‐shell NPs. The hydrolysis activation energy for the Ni 0.74 Ru 0.26 alloy catalyst was measured to be approximately 37 kJ mol−1. This value is considerably lower than the values measured for monometallic Ni (≈70 kJ mol−1) and Ru NPs (≈49 kJ mol−1), and for Ni@Ru (≈44 kJ mol−1), and is also lower than the values of most noble‐metal‐containing bimetallic NPs reported in the literature. Thus, a remarkable improvement of catalytic activity of Ru in the dehydrogenation of ammonia borane was obtained by alloying Ru with a Ni, which is a relatively cheap metal.

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Metadata

Authors
Chen, G., Desinan, S., Rosei, R., Rosei, F., & Ma, D.
Venue
Chemistry – A European Journal
Publisher
Wiley
Published
2012-04-26
Volume
18
Issue
25
Pages
7925-7930
ISSN
  • 0947-6539 (ISSN-L)
  • 1521-3765
DOI
10.1002/chem.201200292
OpenAlex
W2146169875
Cited by
204
References
1
FWCI
9.12
Type
journal article
Language
en
Open access
bronze
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)

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CoChat. (2026). Citation check: Synthesis of Ni–Ru Alloy Nanoparticles and Their High Catalytic Activity in Dehydrogenation of Ammonia Borane. https://app.cochat.ai/papers/10.1002/chem.201200292
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Chen, G., Desinan, S., Rosei, R., Rosei, F., & Ma, D. (2012). Synthesis of Ni–Ru Alloy Nanoparticles and Their High Catalytic Activity in Dehydrogenation of Ammonia Borane. Chemistry – A European Journal. https://doi.org/10.1002/chem.201200292

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