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Microenvironment modulation of single-atom catalysts and their roles in electrochemical energy conversion

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SCIENCE ADVANCES
卷 6, 期 39, 页码 -

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AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abb6833

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资金

  1. National Key R&D Program of China [2016YFA0202804]
  2. Strategic Priority Research Program of the Chinese Academy of Sciences [XDB36030200]
  3. National Natural Science Foundation of China [21925803]
  4. Singapore Ministry of Education Academic Research Fund (AcRF) Tier 1 [RG115/17, RG 115/18]
  5. Singapore Energy Center (SgEC) SgEC-Core [2019-15]
  6. Singapore Ministry of Education Academic Research Fund (AcRF) Tier 2 [MOE2016-T2-2-004]

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Single-atom catalysts (SACs) have become the most attractive frontier research field in heterogeneous catalysis. Since the atomically dispersed metal atoms are commonly stabilized by ionic/covalent interactions with neighboring atoms, the geometric and electronic structures of SACs depend greatly on their microenvironment, which, in turn, determine the performances in catalytic processes. In this review, we will focus on the recently developed strategies of SAC synthesis, with attention on the microenvironment modulation of single-atom active sites of SACs. Furthermore, experimental and computational advances in understanding such microenvironment in association to the catalytic activity and mechanisms are summarized and exemplified in the electrochemical applications, including the water electrolysis and O-2/CO2/N-2 reduction reactions. Last, by highlighting the prospects and challenges for microenvironment engineering of SACs, we wish to shed some light on the further development of SACs for electrochemical energy conversion.

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