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Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst

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  • Chang Hyuck Choi

    (Korea Advanced Institute of Science and Technology
    Max-Planck-Institut für Eisenforschung GmbH)

  • Minho Kim

    (Graduate School of EEWS, Korea Advanced Institute of Science and Technology)

  • Han Chang Kwon

    (Korea Advanced Institute of Science and Technology)

  • Sung June Cho

    (Chonnam National University)

  • Seongho Yun

    (Korea Advanced Institute of Science and Technology)

  • Hee-Tak Kim

    (Korea Advanced Institute of Science and Technology)

  • Karl J. J. Mayrhofer

    (Max-Planck-Institut für Eisenforschung GmbH
    Forschungszentrum Jülich, ‘Helmholtz-Institut Erlangen-Nürnberg’ (IEK 11))

  • Hyungjun Kim

    (Graduate School of EEWS, Korea Advanced Institute of Science and Technology)

  • Minkee Choi

    (Korea Advanced Institute of Science and Technology)

Abstract

Maximum atom efficiency as well as distinct chemoselectivity is expected for electrocatalysis on atomically dispersed (or single site) metal centres, but its realization remains challenging so far, because carbon, as the most widely used electrocatalyst support, cannot effectively stabilize them. Here we report that a sulfur-doped zeolite-templated carbon, simultaneously exhibiting large sulfur content (17 wt% S), as well as a unique carbon structure (that is, highly curved three-dimensional networks of graphene nanoribbons), can stabilize a relatively high loading of platinum (5 wt%) in the form of highly dispersed species including site isolated atoms. In the oxygen reduction reaction, this catalyst does not follow a conventional four-electron pathway producing H2O, but selectively produces H2O2 even over extended times without significant degradation of the activity. Thus, this approach constitutes a potentially promising route for producing important fine chemical H2O2, and also offers opportunities for tuning the selectivity of other electrochemical reactions on various metal catalysts.

Suggested Citation

  • Chang Hyuck Choi & Minho Kim & Han Chang Kwon & Sung June Cho & Seongho Yun & Hee-Tak Kim & Karl J. J. Mayrhofer & Hyungjun Kim & Minkee Choi, 2016. "Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst," Nature Communications, Nature, vol. 7(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10922
    DOI: 10.1038/ncomms10922
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    Cited by:

    1. Jiajun Zhao & Cehuang Fu & Ke Ye & Zheng Liang & Fangling Jiang & Shuiyun Shen & Xiaoran Zhao & Lu Ma & Zulipiya Shadike & Xiaoming Wang & Junliang Zhang & Kun Jiang, 2022. "Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Xuan Zhao & Qi Yin & Xinnan Mao & Chen Cheng & Liang Zhang & Lu Wang & Tian-Fu Liu & Youyong Li & Yanguang Li, 2022. "Theory-guided design of hydrogen-bonded cobaltoporphyrin frameworks for highly selective electrochemical H2O2 production in acid," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Zhe Chen & Jili Li & Lingshen Meng & Jianan Li & Yaming Hao & Tao Jiang & Xuejing Yang & Yefei Li & Zhi-Pan Liu & Ming Gong, 2023. "Ligand vacancy channels in pillared inorganic-organic hybrids for electrocatalytic organic oxidation with enzyme-like activities," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Changmin Kim & Sung O Park & Sang Kyu Kwak & Zhenhai Xia & Guntae Kim & Liming Dai, 2023. "Concurrent oxygen reduction and water oxidation at high ionic strength for scalable electrosynthesis of hydrogen peroxide," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    5. Khandelwal, Akshat & Maarisetty, Dileep & Baral, Saroj Sundar, 2022. "Fundamentals and application of single-atom photocatalyst in sustainable energy and environmental applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    6. Junsic Cho & Taejung Lim & Haesol Kim & Ling Meng & Jinjong Kim & Seunghoon Lee & Jong Hoon Lee & Gwan Yeong Jung & Kug-Seung Lee & Francesc Viñes & Francesc Illas & Kai S. Exner & Sang Hoon Joo & Cha, 2023. "Importance of broken geometric symmetry of single-atom Pt sites for efficient electrocatalysis," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    7. Fei He & Seunghyun Weon & Woojung Jeon & Myoung Won Chung & Wonyong Choi, 2021. "Self-wetting triphase photocatalysis for effective and selective removal of hydrophilic volatile organic compounds in air," Nature Communications, Nature, vol. 12(1), pages 1-12, December.

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