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Ultrathin W18O49 Nanowires with Diameters below 1 nm: Synthesis, Near-Infrared Absorption, Photoluminescence, and Photochemical Reduction of Carbon Dioxide

Authors

  • Dr. Guangcheng Xi,

    1. International Center for Materials Nanoarchitectonics (WPI-MANA), and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
    2. Nanomaterials and Nanoproducts Research Center, Chinese Academy of Inspection and Quarantine, Beijing, 100123 (China)
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  • Dr. Shuxin Ouyang,

    1. International Center for Materials Nanoarchitectonics (WPI-MANA), and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Peng Li,

    1. International Center for Materials Nanoarchitectonics (WPI-MANA), and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Prof. Jinhua Ye,

    Corresponding author
    1. International Center for Materials Nanoarchitectonics (WPI-MANA), and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
    2. TU-NIMS Joint Research Center, School of Material Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin (P.R. China)
    • International Center for Materials Nanoarchitectonics (WPI-MANA), and Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Dr. Qiang Ma,

    1. Nanomaterials and Nanoproducts Research Center, Chinese Academy of Inspection and Quarantine, Beijing, 100123 (China)
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  • Ning Su,

    1. Nanomaterials and Nanoproducts Research Center, Chinese Academy of Inspection and Quarantine, Beijing, 100123 (China)
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  • Prof. Hua Bai,

    1. Nanomaterials and Nanoproducts Research Center, Chinese Academy of Inspection and Quarantine, Beijing, 100123 (China)
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  • Prof. Chao Wang

    1. Nanomaterials and Nanoproducts Research Center, Chinese Academy of Inspection and Quarantine, Beijing, 100123 (China)
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  • This work received financial support from the World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitectonics, the Natural Science Foundation of China (51102220), and the Global COE Program of Tokyo Institute of Technology (Japan).

Abstract

original image

Open vacancies: A facile one-pot synthesis of oxygen-vacancy-rich ultrathin W18O49 nanowires up to several micrometers long is described. In addition to unique optical properties, such as NIR absorption and blue-light emission, the nanowires show an unexpected ability to photochemically reduce carbon dioxide to methane (see picture) as a result of its defect structure caused by large quantities of oxygen vacancies.

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