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A low temperature organic synthesis of monodispersed NiRu nanocrystals for CO2 methanation.

ABSTRACT: In this study, monodispersed NiRu nanocrystals with a diameter of 3 nm were synthesized at 90 °C via a tuning hot-inject method to lower the temperature of the organic phase synthesis of monodispersed nanomaterials. The key factor for the nanocrystalline formation of NiRu alloy nanocrystals was summarized in detail. Simultaneously, the synergistic effect of Ni and Ru in CO2 methanation was explored. Doping trace Ru can significantly improve the conversion rate of CO2 methanation and CH4 selectivity. The underlying mechanism was studied in detail via X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed hydrogen reduction (H2-TPR) and desorption (H2-TPD) tests, and temperature-programmed desorption of CO2 (CO2-TPD). This study gives out a new way for the general synthesis of monodisperse nickel-based nanocrystals and provides a reference for the development and application of monodispersed nanoparticles for CO2 methanation.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC8693694 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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A low temperature organic synthesis of monodispersed NiRu nanocrystals for CO<sub>2</sub> methanation.

Liu Yang Y   Liang Xin X   Zhang Jie J   Yun Jimmy J   Yang Zuobo Z  

RSC advances 20210107 4

In this study, monodispersed NiRu nanocrystals with a diameter of 3 nm were synthesized at 90 °C <i>via</i> a tuning hot-inject method to lower the temperature of the organic phase synthesis of monodispersed nanomaterials. The key factor for the nanocrystalline formation of NiRu alloy nanocrystals was summarized in detail. Simultaneously, the synergistic effect of Ni and Ru in CO<sub>2</sub> methanation was explored. Doping trace Ru can significantly improve the conversion rate of CO<sub>2</sub>  ...[more]

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