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Synthesis and characterization of bimetallic cobalt-rhodium nanoclusters as effective catalysts to produce hydrogen from ammonia borane hydrolysis

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  • Rakap, Murat

Abstract

Here, first-time synthesis and characterization of highly effective and relatively low-cost poly (N-vinyl-2-pyrrolidone)-stabilized cobalt-rhodium nanoclusters and their employment as catalysts to generate hydrogen from ammonia borane via hydrolysis pathway is reported. They are readily synthesized by co-reduction of cobalt and rhodium cations in ethanol/water mixture under reflux temperature. They are found to be highly stable for a long time without any precipitation. Their size, morphology, and chemical composition are determined by advanced analytical techniques of ultraviolet–visible (UV–Vis) electronic absorption spectroscopy, transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). They are found to be highly recyclable and effective catalysts for hydrogen release from ammonia borane hydrolysis reaction at very low concentrations and temperature, providing initial turnover frequency (TOF) of 154 min−1 and activation energy of 42.7 kJ mol−1.

Suggested Citation

  • Rakap, Murat, 2020. "Synthesis and characterization of bimetallic cobalt-rhodium nanoclusters as effective catalysts to produce hydrogen from ammonia borane hydrolysis," Renewable Energy, Elsevier, vol. 154(C), pages 1076-1082.
    • Handle: RePEc:eee:renene:v:154:y:2020:i:c:p:1076-1082
    DOI: 10.1016/j.renene.2020.03.088
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    Cited by:

    1. Feng, Yufa & Chen, Xiaodong & Wang, Huize & Li, Xiaolei & Huang, Hanzhao & Liu, Yu & Li, Hao, 2021. "Durable and high performing Ti supported Ni0.4Cu0.6Co2O4 nanoleaf-like array catalysts for hydrogen production," Renewable Energy, Elsevier, vol. 169(C), pages 660-669.
    2. Zhao, Liqing & Wei, Qinghe & Zhang, Lili & Zhao, Yafei & Zhang, Bing, 2021. "NiCo alloy decorated on porous N-doped carbon derived from ZnCo-ZIF as highly efficient and magnetically recyclable catalyst for hydrogen evolution from ammonia borane," Renewable Energy, Elsevier, vol. 173(C), pages 273-282.

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