Defect engineering enhances plasmonic-hot electrons exploitation for CO 2 reduction over polymeric catalysts.
Hang YinZhehao SunKaili LiuAry Anggara WibowoJulien LangleyChao ZhangSandra E SajiFelipe KremerDmitri V GolbergHieu T NguyenNicholas CoxZongyou YinPublished in: Nanoscale horizons (2023)
Defect sites present on the surface of catalysts serve a crucial role in different catalytic processes. Herein, we have investigated defect engineering within a hybrid system composed of "soft" polymer catalysts and "hard" metal nanoparticles, employing the disparity in their thermal expansions. Electron paramagnetic resonance, X-ray photoelectron spectroscopy, and mechanistic studies together reveal the formation of new abundant defects and their synergistic integrability with plasmonic enhancement within the hybrid catalyst. These active defects, co-localized with plasmonic Ag nanoparticles, promote the utilization efficiency of hot electrons generated by local plasmons, thereby enhancing the CO 2 photoreduction activity while maintaining the high catalytic selectivity.
Keyphrases
- highly efficient
- energy transfer
- single molecule
- metal organic framework
- visible light
- high resolution
- transition metal
- atomic force microscopy
- cancer therapy
- drug delivery
- quantum dots
- single cell
- crystal structure
- gene expression
- ionic liquid
- drug release
- walled carbon nanotubes
- dna methylation
- electron microscopy
- mass spectrometry
- dual energy