Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces

Meng, Lingshu; Chen, Zhenye; Ma, Zhiyun; He, Sha; Hou, Yidong; Li, Hao‐Hong; Yuan, Rusheng; Huang, Xiaoqing; Wang, Xuxu; Wang, Xinchen; Long, Jinlin

doi:10.1039/c7ee02951a

Cited by 227 publications

(194 citation statements)

References 26 publications

Supporting

Mentioning

190

Contrasting

Unclassified

Order By: Relevance

“…Activation of methane over Zn 2+ /ZSM-5 and Ga 3+ /EST-10 photocatalysts has been reported, with the photocatalytic activity attributed to the presence of extra-framework zinc cations and Ti-OH groups on titanate wires 27,28 . Photocatalytic non-oxidative coupling of methane has been observed when exploiting the surface plasmon effect of Au 29 or Ga and Pt photocatalysts supported on TiO2-SiO2 30 . Methane photocatalytic coupling with higher quantum efficiencies has been reported over Pd/TiO2 catalysts 31,32 .…”

mentioning

confidence: 99%

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

et al. 2020

View full text Add to dashboard Cite

Methane activation and utilization are among the major challenges of modern science. Methane is potentially an important feedstock for manufacturing value-added fuels and chemicals. However, most of known processes require excessive operating temperatures and exhibit insufficient selectivity. Here, we demonstrate a photochemical looping strategy for highly selective stoichiometric conversion of methane to ethane at ambient temperature over silverheteropolyacid-titania nanocomposites. The process involves stoichiometric reaction of methane with highly-dispersed cationic silver under illumination, which results in the formation of methyl radicals. Recombination of the generated methyl radicals leads to selective, and almost quantitative, formation of ethane. Cationic silver species are simultaneously reduced to metallic silver. The silver-heteropolyacid-titania nanocomposites can be reversibly regenerated in air under illumination at ambient temperature. The photochemical looping process achieves methane coupling selectivity over 90%, quantitative yield of ethane over 9%, high quantum efficiency (3.5% at 362 nm) and excellent stability.

show abstract

mentioning

confidence: 99%

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

et al. 2020

View full text Add to dashboard Cite

show abstract

“…experimentally proved that the field–field coupling in either Au‐ or Ag‐ loaded ZnO nanosheet systems greatly intensified the surface polarization of ZnO nanosheets, charging negatively CO 2 molecules and bending their O=C=O bonds . The LSPR‐induced electric field can also promote the polarization and subsequent dissociation of methane C−H bonds on the ZnO surface, triggering a radical coupling reaction of activated methane molecules to form C 2 hydrocarbon products . These studies provide a smart strategy employing plasmons to achieve an efficient and selective photoreduction of CO 2 into desired products.…”

Section: Major Processes Of Co2 Photoreduction On the Plasmonic Photomentioning

confidence: 99%

Plasmonic Photocatalysts for Sunlight‐Driven Reduction of CO₂: Details, Developments, and Perspectives

Kaliaguine

2020

ChemSusChem

View full text Add to dashboard Cite

Plasmonic photocatalysis is among the most efficient processes for the photoreduction of CO2 into valuable fuels. The formation of localized surface plasmon resonance (LSPR), energy transfer, and surface reaction are the significant steps in this process. LSPR plays an essential role in the performance of plasmonic photocatalysts as it promotes an excellent, light absorption over a broad wavelength range while simultaneously facilitating an efficient energy transfer to semiconductors. The LSPR transfers energy to a semiconductor through various mechanisms, which have both advantages and disadvantages. This work points out four critical features for plasmonic photocatalyst design, that is, plasmonic materials, size, shape of plasmonic nanoparticles (PNPs), and the contact between PNPs and semiconductor. Various developed plasmonic photocatalysts, as well as their photocatalytic performance in CO2 photoreduction, are reviewed and discussed. Finally, perspectives of advanced architectures and structural engineering for plasmonic photocatalyst design are put forward with high expectations to achieve an efficient CO2 photoreduction shortly.

show abstract

“…This enhanced activity arises from the electric field intensity of TiO 2 -Au, which is 10 times stronger than bare TiO 2 . With the assistance of the plasmonic effect, other small molecules such as CH 4 68 and CO 2 69 can also be activated and transferred into ethane and CH 4 , respectively, under solar light irradiation.…”

Section: Nhn Activationmentioning

confidence: 99%

Solar- versus Thermal-Driven Catalysis for Energy Conversion

Zhao

Gao

et al. 2019

Joule

195

View full text Add to dashboard Cite

Today's chemical industry is a pillar of our modern society, but it heavily relies on the consumption of non-renewable fossil fuels. The reaction conditions required to drive most of the chemical processes require high energy input, resulting in the consumption of significant amounts of dwindling reserves of fossil fuels. Therefore, more sustainable pathways are much sought after to reduce the dependence on fossil fuels and ameliorate the effects of climate change. Inspired by photosynthesis and its ability to convert CO 2 and H 2 O to hydrocarbons, this Perspective focuses on recent advances in catalytic small-molecule activation and conversion. It will consider reactions of C-H (CH 4 , benzene), C=O (CO and CO 2), NhN bonds, and other fine chemicals syntheses (e.g., CC and S-S bond coupling), driven by either solar or thermal energy. The paper also discusses the future opportunities and challenges by highlighting some strategies for the development of efficient solar or thermal catalysis processes.

show abstract

Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces

Abstract: Au-Plasmon-induced resonance energy transfer modulates the charge carrier energetics of ZnO nanosheets to trigger the stoichiometric conversion of methane into ethane and hydrogen.

Cited by 227 publications

References 26 publications

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

Plasmonic Photocatalysts for Sunlight‐Driven Reduction of CO₂: Details, Developments, and Perspectives

Solar- versus Thermal-Driven Catalysis for Energy Conversion

Contact Info

Product

Resources

About

Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces

Abstract: Au-Plasmon-induced resonance energy transfer modulates the charge carrier energetics of ZnO nanosheets to trigger the stoichiometric conversion of methane into ethane and hydrogen.

Cited by 227 publications

References 26 publications

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature

Plasmonic Photocatalysts for Sunlight‐Driven Reduction of CO2: Details, Developments, and Perspectives

Solar- versus Thermal-Driven Catalysis for Energy Conversion

Contact Info

Product

Resources

About

Plasmonic Photocatalysts for Sunlight‐Driven Reduction of CO₂: Details, Developments, and Perspectives