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Low-temperature oxidation of CO catalysed by Co3O4 nanorods

Author

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  • Xiaowei Xie

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

  • Yong Li

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

  • Zhi-Quan Liu

    (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences)

  • Masatake Haruta

    (Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji 192-0397, Tokyo, Japan
    Japan Science and Technology Agency, CREST, 4-1-8 Hon-Cho, Kawaguchi 332-0012, Saitama, Japan)

  • Wenjie Shen

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

Abstract

Shapes of catalysts to come Tricobalt tetraoxide (Co3O4) has been much investigated as a potential catalyst for the low-temperature oxidation of carbon monoxide, useful for example in automotive emission control. Although this material is active even at sub-zero temperatures, it is highly sensitive to even trace amounts of moisture. Xiaowei Xie et al. now establish that Co3O4 in the form of nanorods shows higher catalytic activity, and enhanced stability in the presence of water; they attribute these improvements to the high density of catalytically active Co3+ sites exposed on the nanorod surface. Health risks associated with cobalt use mean that this specific material might not found widespread application for air purification, but these findings demonstrate the potential for morphological control for improving the performance of transition metal oxide catalysts.

Suggested Citation

  • Xiaowei Xie & Yong Li & Zhi-Quan Liu & Masatake Haruta & Wenjie Shen, 2009. "Low-temperature oxidation of CO catalysed by Co3O4 nanorods," Nature, Nature, vol. 458(7239), pages 746-749, April.
    • Handle: RePEc:nat:nature:v:458:y:2009:i:7239:d:10.1038_nature07877
    DOI: 10.1038/nature07877
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    Cited by:

    1. Luo, Chunlin & Liu, Shuai & Yang, Gang & Jiang, Peng & Luo, Xiang & Chen, Yipei & Xu, Mengxia & Lester, Edward & Wu, Tao, 2023. "Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst," Applied Energy, Elsevier, vol. 333(C).
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    3. Mengyuan Zhang & Ying Gao & Chengmin Xie & Xiaolan Duan & Xiaoyan Lu & Kongliang Luo & Jian Ye & Xiaopeng Wang & Xinhua Gao & Qiang Niu & Pengfei Zhang & Sheng Dai, 2024. "Designing water resistant high entropy oxide materials," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
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    6. Yanping Chen & Yu Yao & Wantong Zhao & Lifeng Wang & Haitao Li & Jiangwei Zhang & Baojun Wang & Yi Jia & Riguang Zhang & Yan Yu & Jian Liu, 2023. "Precise solid-phase synthesis of CoFe@FeOx nanoparticles for efficient polysulfide regulation in lithium/sodium-sulfur batteries," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    7. Yutao, Zhang & Yuanbo, Zhang & Yaqing, Li & Xueqiang, Shi & Yujie, Zhang, 2021. "Heat effects and kinetics of coal spontaneous combustion at various oxygen contents," Energy, Elsevier, vol. 234(C).
    8. Shengcong Shang & Changsheng Du & Youxing Liu & Minghui Liu & Xinyu Wang & Wenqiang Gao & Ye Zou & Jichen Dong & Yunqi Liu & Jianyi Chen, 2022. "A one-dimensional conductive metal-organic framework with extended π-d conjugated nanoribbon layers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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