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

被引：5
|
作者：
Kumar, Dinesh [1 ,2 ,3 ,4 ]
Jaswal, Richa [1 ,3 ,4 ]
Park, Chan Hee [1 ,2 ,3 ]
Kim, Cheol Sang [1 ,3 ]
机构：
[1] Jeonbuk Natl Univ, Div Mech Design Engn, Jeonju 54896, South Korea
[2] Jeonbuk Natl Univ, Reg Leading Res Ctr Nanocarbon based Energy Mat &, Jeonju, South Korea
[3] Jeonbuk Natl Univ, Grad Sch, Dept Bionanotechnol & Bioconvergence Engn, Jeonju 54896, South Korea
[4] Jeonbuk Natl Univ, Grad Sch, Dept Bionanosyst Engn, Jeonju 54896, South Korea
来源：
MATERIALS TODAY ENERGY | 2023年 / 33卷
基金：
新加坡国家研究基金会;
关键词：
Mn-Au nanohybrids; Nanoplasmonics; Hot carrier generation; CO; 2; conversion; Cross -coupling reactions; FORMIC-ACID; REDUCTION; OXIDATION; EFFICIENT; NANOPARTICLES; CATALYSTS; GOLD;
D O I：
10.1016/j.mtener.2023.101261
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 hat 50 degrees C. At room temperature (25 degrees 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.(c) 2023 Elsevier Ltd. All rights reserved.
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页数：14
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