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Selective photoelectrochemical oxidation of glucose to glucaric acid by single atom Pt decorated defective TiO2

Author

Listed:
  • Zhangliu Tian

    (National University of Singapore)

  • Yumin Da

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Meng Wang

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Xinyu Dou

    (National University of Singapore)

  • Xinhang Cui

    (National University of Singapore)

  • Jie Chen

    (Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University
    National University of Singapore)

  • Rui Jiang

    (Tianjin University)

  • Shibo Xi

    (Agency for Science, Technology and Research (A*STAR))

  • Baihua Cui

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Yani Luo

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Haotian Yang

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Yu Long

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Yukun Xiao

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University)

  • Wei Chen

    (National University of Singapore
    Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University
    National University of Singapore
    National University of Singapore (Singapore))

Abstract

Photoelectrochemical reaction is emerging as a powerful approach for biomass conversion. However, it has been rarely explored for glucose conversion into value-added chemicals. Here we develop a photoelectrochemical approach for selective oxidation of glucose to high value-added glucaric acid by using single-atom Pt anchored on defective TiO2 nanorod arrays as photoanode. The defective structure induced by the oxygen vacancies can modulate the charge carrier dynamics and band structure, simultaneously. With optimized oxygen vacancies, the defective TiO2 photoanode shows greatly improved charge separation and significantly enhanced selectivity and yield of C6 products. By decorating single-atom Pt on the defective TiO2 photoanode, selective oxidation of glucose to glucaric acid can be achieved. In this work, defective TiO2 with single-atom Pt achieves a photocurrent density of 1.91 mA cm−2 for glucose oxidation at 0.6 V versus reversible hydrogen electrode, leading to an 84.3 % yield of glucaric acid under simulated sunlight irradiation.

Suggested Citation

  • Zhangliu Tian & Yumin Da & Meng Wang & Xinyu Dou & Xinhang Cui & Jie Chen & Rui Jiang & Shibo Xi & Baihua Cui & Yani Luo & Haotian Yang & Yu Long & Yukun Xiao & Wei Chen, 2023. "Selective photoelectrochemical oxidation of glucose to glucaric acid by single atom Pt decorated defective TiO2," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-35875-9
    DOI: 10.1038/s41467-023-35875-9
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    References listed on IDEAS

    as
    1. Wu-Jun Liu & Zhuoran Xu & Dongting Zhao & Xiao-Qiang Pan & Hong-Chao Li & Xiao Hu & Zhi-Yong Fan & Wei-Kang Wang & Guo-Hua Zhao & Song Jin & George W. Huber & Han-Qing Yu, 2020. "Efficient electrochemical production of glucaric acid and H2 via glucose electrolysis," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    2. Dong Liu & Jin-Cheng Liu & Weizheng Cai & Jun Ma & Hong Bin Yang & Hai Xiao & Jun Li & Yujie Xiong & Yanqiang Huang & Bin Liu, 2019. "Selective photoelectrochemical oxidation of glycerol to high value-added dihydroxyacetone," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    3. Zhongxin Chen & Jingting Song & Rongrong Zhang & Runlai Li & Qikun Hu & Pingping Wei & Shibo Xi & Xin Zhou & Phuc T. T. Nguyen & Hai M. Duong & Poh Seng Lee & Xiaoxu Zhao & Ming Joo Koh & Ning Yan & K, 2022. "Addressing the quantitative conversion bottleneck in single-atom catalysis," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
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