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Deciphering Au-manganese oxide nanopetals plasmon–exciton co-driven artificial photosynthesis and Suzuki-Miyaura coupling reactions

  • Dinesh Kumar*
  • , Richa Jaswal
  • , Chan Hee Park*
  • , Cheol Sang Kim*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

Here, we developed three different amorphous structural designs of Mn nanomaterials (nanospheres, nanoflowers, and nanopetals) electrostatically coupled with the gold nanostructures (GNRs and GNSs) to improve their efficiency for photoreduction of CO2 to HCOOH and Suzuki-Miyaura coupling reaction in full-spectrum. The gold nanorods (GNRs) decorated Mn nanopetals (MnNPs@GNRs) showed high efficacy for CO2 reduction to HCOOH with 2.24% of quantum yield and 3.79% of chemical yield in visible light irradiation (6.0 W/cm2) at room temperature. The MnNPs@GNRs exhibited impressive yield for HCOOH formation in NIR and sunlight irradiation too. Likewise, the MnNPs@GNRs showed excellent efficiency for the Suzuki-Miyaura coupling reaction with 99.41% of biphenyl yield in visible light irradiation for 2.0 h at 50 °C. At room temperature (25 °C) the photocatalyst showed 58.71% of biphenyl yield in visible light irradiation. The MnNPs@GNRs exhibited great activity for ten recycles for CO2 conversion as well as coupling reaction without losing activity.

Original languageEnglish
Article number101261
JournalMaterials Today Energy
Volume33
DOIs
StatePublished - 2023.04

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy
  2. SDG 13 - Climate Action
    SDG 13 Climate Action

Keywords

  • CO conversion
  • Cross-coupling reactions
  • Hot carrier generation
  • Mn–Au nanohybrids
  • Nanoplasmonics

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum

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