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Colloidal zinc oxide-copper(I) oxide nanocatalysts for selective aqueous photocatalytic carbon dioxide conversion into methane

Author

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  • Kyung-Lyul Bae

    (Korea Advanced Institute of Science and Technology, and Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (ibs))

  • Jinmo Kim

    (Korea Advanced Institute of Science and Technology, and Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (ibs))

  • Chan Kyu Lim

    (Korea Advanced Institute of Science and Technology, and Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (ibs))

  • Ki Min Nam

    (Mokpo National University)

  • Hyunjoon Song

    (Korea Advanced Institute of Science and Technology, and Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (ibs))

Abstract

Developing catalytic systems with high efficiency and selectivity is a fundamental issue for photochemical carbon dioxide conversion. In particular, rigorous control of the structure and morphology of photocatalysts is decisive for catalytic performance. Here, we report the synthesis of zinc oxide-copper(I) oxide hybrid nanoparticles as colloidal forms bearing copper(I) oxide nanocubes bound to zinc oxide spherical cores. The zinc oxide-copper(I) oxide nanoparticles behave as photocatalysts for the direct conversion of carbon dioxide to methane in an aqueous medium, under ambient pressure and temperature. The catalysts produce methane with an activity of 1080 μmol gcat −1 h−1, a quantum yield of 1.5% and a selectivity for methane of >99%. The catalytic ability of the zinc oxide-copper(I) oxide hybrid catalyst is attributed to excellent band alignment of the zinc-oxide and copper(I) oxide domains, few surface defects which reduce defect-induced charge recombination and enhance electron transfer to the reagents, and a high-surface area colloidal morphology.

Suggested Citation

  • Kyung-Lyul Bae & Jinmo Kim & Chan Kyu Lim & Ki Min Nam & Hyunjoon Song, 2017. "Colloidal zinc oxide-copper(I) oxide nanocatalysts for selective aqueous photocatalytic carbon dioxide conversion into methane," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01165-4
    DOI: 10.1038/s41467-017-01165-4
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    Cited by:

    1. Peng, Wanxi & Chuong Nguyen, Thi Hong & Nguyen, Dang Le Tri & Wang, Ting & Van Thi Tran, Thi & Le, Trung Hieu & Le, Hai Khoa & Grace, Andrews Nirmala & Singh, Pardeep & Raizadaa, Pankaj & Nguyen Dinh,, 2021. "A roadmap towards the development of superior photocatalysts for solar- driven CO2-to-fuels production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    2. Yao Chai & Yuehua Kong & Min Lin & Wei Lin & Jinni Shen & Jinlin Long & Rusheng Yuan & Wenxin Dai & Xuxu Wang & Zizhong Zhang, 2023. "Metal to non-metal sites of metallic sulfides switching products from CO to CH4 for photocatalytic CO2 reduction," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Subhabrata Mukhopadhyay & Muhammad Saad Naeem & G. Shiva Shanker & Arnab Ghatak & Alagar R. Kottaichamy & Ran Shimoni & Liat Avram & Itamar Liberman & Rotem Balilty & Raya Ifraemov & Illya Rozenberg &, 2024. "Local CO2 reservoir layer promotes rapid and selective electrochemical CO2 reduction," Nature Communications, Nature, vol. 15(1), pages 1-14, December.

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