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Promoting exsolution of RuFe alloy nanoparticles on Sr2Fe1.4Ru0.1Mo0.5O6−δ via repeated redox manipulations for CO2 electrolysis

Author

Listed:
  • Houfu Lv

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Le Lin

    (Chinese Academy of Sciences
    ShanghaiTech University)

  • Xiaomin Zhang

    (Chinese Academy of Sciences)

  • Rongtan Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuefeng Song

    (Chinese Academy of Sciences)

  • Hiroaki Matsumoto

    (Hitachi High-tech (Shanghai) Co., Ltd)

  • Na Ta

    (Chinese Academy of Sciences)

  • Chaobin Zeng

    (Hitachi High-tech (Shanghai) Co., Ltd)

  • Qiang Fu

    (Chinese Academy of Sciences)

  • Guoxiong Wang

    (Chinese Academy of Sciences)

  • Xinhe Bao

    (Chinese Academy of Sciences)

Abstract

Metal nanoparticles anchored on perovskite through in situ exsolution under reducing atmosphere provide catalytically active metal/oxide interfaces for CO2 electrolysis in solid oxide electrolysis cell. However, there are critical challenges to obtain abundant metal/oxide interfaces due to the sluggish diffusion process of dopant cations inside the bulk perovskite. Herein, we propose a strategy to promote exsolution of RuFe alloy nanoparticles on Sr2Fe1.4Ru0.1Mo0.5O6−δ perovskite by enriching the active Ru underneath the perovskite surface via repeated redox manipulations. In situ scanning transmission electron microscopy demonstrates the dynamic structure evolution of Sr2Fe1.4Ru0.1Mo0.5O6−δ perovskite under reducing and oxidizing atmosphere, as well as the facilitated CO2 adsorption at RuFe@Sr2Fe1.4Ru0.1Mo0.5O6−δ interfaces. Solid oxide electrolysis cell with RuFe@Sr2Fe1.4Ru0.1Mo0.5O6−δ interfaces shows over 74.6% enhancement in current density of CO2 electrolysis compared to that with Sr2Fe1.4Ru0.1Mo0.5O6−δ counterpart as well as impressive stability for 1000 h at 1.2 V and 800 °C.

Suggested Citation

  • Houfu Lv & Le Lin & Xiaomin Zhang & Rongtan Li & Yuefeng Song & Hiroaki Matsumoto & Na Ta & Chaobin Zeng & Qiang Fu & Guoxiong Wang & Xinhe Bao, 2021. "Promoting exsolution of RuFe alloy nanoparticles on Sr2Fe1.4Ru0.1Mo0.5O6−δ via repeated redox manipulations for CO2 electrolysis," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26001-8
    DOI: 10.1038/s41467-021-26001-8
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    Cited by:

    1. Hong-Jing Zhu & Duan-Hui Si & Hui Guo & Ziao Chen & Rong Cao & Yuan-Biao Huang, 2024. "Oxygen-tolerant CO2 electroreduction over covalent organic frameworks via photoswitching control oxygen passivation strategy," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Zuoqing Liu & Yuesheng Bai & Hainan Sun & Daqin Guan & Wenhuai Li & Wei-Hsiang Huang & Chih-Wen Pao & Zhiwei Hu & Guangming Yang & Yinlong Zhu & Ran Ran & Wei Zhou & Zongping Shao, 2024. "Synergistic dual-phase air electrode enables high and durable performance of reversible proton ceramic electrochemical cells," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    3. Bo-Wen Zhang & Meng-Nan Zhu & Min-Rui Gao & Xiuan Xi & Nanqi Duan & Zhou Chen & Ren-Fei Feng & Hongbo Zeng & Jing-Li Luo, 2022. "Boosting the stability of perovskites with exsolved nanoparticles by B-site supplement mechanism," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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