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Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2

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Abstract

Small amount of Nickel deposited on SiO2 support by electroless plating was verified to have a significant promoting effect on the catalytic performance of the K2MoO4/SiO2 catalyst for methanethiol synthesis from H2S-rich synthesis gas. The addition of Nickel was found to be in favor of the suppression of the CO2 formation. The results of BET, TPR and Raman characterizations for the Ni-modified SiO2 and the catalyst K2MoO4/Ni-SiO2 showed that the surface properties of Ni-modified SiO2 were similar to those of unmodified SiO2 and that no Raman characteristic band specific to NiO from the catalyst K2MoO4/Ni-SiO2 was detected. For oxidic K2MoO4/Ni-SiO2 catalyst lower reduction temperature was measured. For sulfided catalysts, reduced molybdenum oxides and oxysulfides were detected, which was inferred to be closely related to high catalytic activity of the catalyst.

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Acknowledgments

The authors gratefully acknowledge Degussa GmbH (Germany) for financial support.

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Authors and Affiliations

  1. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, People’s Republic of China

    Yingjuan Hao, Yuanhua Zhang, Aiping Chen, Weiping Fang & Yiquan Yang

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  1. Yingjuan Hao
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  2. Yuanhua Zhang
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  3. Aiping Chen
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  4. Weiping Fang
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  5. Yiquan Yang
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Correspondence to Yiquan Yang.

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Hao, Y., Zhang, Y., Chen, A. et al. Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2 . Catal Lett 129, 486–492 (2009). https://doi.org/10.1007/s10562-008-9827-4

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  • DOI: https://doi.org/10.1007/s10562-008-9827-4

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