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Interfacing with silica boosts the catalysis of copper

Author

Listed:
  • Chaofa Xu

    (Xiamen University)

  • Guangxu Chen

    (Xiamen University)

  • Yun Zhao

    (Xiamen University)

  • Pengxin Liu

    (Xiamen University)

  • Xinping Duan

    (Xiamen University)

  • Lin Gu

    (Chinese Academy of Sciences)

  • Gang Fu

    (Xiamen University)

  • Youzhu Yuan

    (Xiamen University)

  • Nanfeng Zheng

    (Xiamen University)

Abstract

Metal-support interaction is one of the most important parameters in controlling the catalysis of supported metal catalysts. Silica, a widely used oxide support, has been rarely reported as an effective support to create active metal-support interfaces for promoting catalysis. In this work, by coating Cu microparticles with mesoporous SiO2, we discover that Cu/SiO2 interface creates an exceptional effect to promote catalytic hydrogenation of esters. Both computational and experimental studies reveal that Cu–Hδ− and SiO–Hδ+ species would be formed at the Cu–O–SiOx interface upon H2 dissociation, thus promoting the ester hydrogenation by stablizing the transition states. Based on the proposed catalytic mechanism, encapsulting copper phyllosilicate nanotubes with mesoporous silica followed by hydrogen reduction is developed as an effective method to create a practical Cu nanocatalyst with abundant Cu-O-SiOx interfaces. The catalyst exhibits the best performance in the hydrogenation of dimethyl oxalate to ethylene glycol among all reported Cu catalysts.

Suggested Citation

  • Chaofa Xu & Guangxu Chen & Yun Zhao & Pengxin Liu & Xinping Duan & Lin Gu & Gang Fu & Youzhu Yuan & Nanfeng Zheng, 2018. "Interfacing with silica boosts the catalysis of copper," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05757-6
    DOI: 10.1038/s41467-018-05757-6
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    Cited by:

    1. Kunlong Liu & Lizhi Jiang & Wugen Huang & Guozhen Zhu & Yue-Jiao Zhang & Chaofa Xu & Ruixuan Qin & Pengxin Liu & Chengyi Hu & Jingjuan Wang & Jian-Feng Li & Fan Yang & Gang Fu & Nanfeng Zheng, 2022. "Atomic overlayer of permeable microporous cuprous oxide on palladium promotes hydrogenation catalysis," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Dawei Yao & Yue Wang & Ying Li & Antai Li & Ziheng Zhen & Jing Lv & Fanfei Sun & Ruoou Yang & Jun Luo & Zheng Jiang & Yong Wang & Xinbin Ma, 2023. "Scalable synthesis of Cu clusters for remarkable selectivity control of intermediates in consecutive hydrogenation," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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