Water-promoted C-S bond formation reactions

Xie, Peizhong; Wang, Jinyu; Liu, Yanan; Fan, Jinglian; Wo, Xiangyang; Fu, Weishan; Sun, Zuolian; Loh, Teck‐Peng

doi:10.1038/s41467-018-03698-8

Cited by 100 publications

(62 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the Raman spectra, the band at 1331 cm À 1 is assigned to the À NO 2 stretching vibration of pNTP, and the bands at 1571 cm À 1 and 1586 cm À 1 are CÀ C stretching vibration of the benzene ring of pNTP and pATP, respectively. [8,16] Such assignments are also confirmed by the Raman spectra of bulk pNTP and pATP ( Figure S2). From the result, we can see that as time goes on, the band at 1571 cm À 1 gradually decreases while the band at 1586 cm À 1 increases for all the catalysts (as shown in Figure S3a, such a trend can also be observed for 3.7 nm Pt when the reaction time is prolonged to 1400 s).…”

supporting

confidence: 65%

“…[7] Recently, surface-enhanced Raman spectroscopy (SERS) has been employed to in-situ monitor the catalytic reactions. [8] SERS has ultrahigh surface sensitivity due to the electromagnetic and chemical enhancement generated by the Au or Ag nanostructures, [9] allowing in situ study the catalytic reactions carried out on their surfaces. [10] The intermediate species and kinetics of the reaction, as well as the effect of the morphology and composition of the catalysts on them, can be studied in depth using in-situ SERS.…”

mentioning

confidence: 99%

See 1 more Smart Citation

In‐situ SHINERS Study of the Size and Composition Effect of Pt‐based Nanocatalysts in Catalytic Hydrogenation

Wang

Chen

et al. 2019

ChemCatChem

View full text Add to dashboard Cite

Understanding the structure‐activity relationship of catalytic reactions at a molecular level still remains a great challenge. Herein, shell‐isolated nanoparticle‐enhanced Raman spectroscopy (SHINERS) is employed to in‐situ study the catalytic hydrogenation of para‐nitrothiophenol (pNTP) on Pt‐based nanocatalysts with different size and composition. The nanocatalysts are assembled on pinhole‐free shell‐isolate nanoparticles (SHINs), which work as Raman amplifiers to enhance the Raman signals of species on the catalysts, allowing the in‐situ monitoring of catalytic reactions carried out on the catalysts. Using this strategy, we find that the catalytic activity of the Pt nanocatalysts shows a volcanic trend with the Pt size, and that PtM (M=Ni or Cu) bimetallic nanocatalysts display much higher performance compared with Pt due to better activation of the nitro group. This work demonstrates that SHINERS is a promising technique for in‐situ study of nanocatalysis thus can deepen the understanding of the behaviors of different catalysts.

show abstract

supporting

confidence: 65%

mentioning

confidence: 99%

In‐situ SHINERS Study of the Size and Composition Effect of Pt‐based Nanocatalysts in Catalytic Hydrogenation

Wang

Chen

et al. 2019

ChemCatChem

View full text Add to dashboard Cite

show abstract

“…Xie and Schlucker also demonstrated that hot electrons, generated by the non-radiative decay of LSPs, can be transferred to reactants. 46 Christopher et al 47,48 showed that hot electrons are involved in a number of oxidation reactions on plasmonic clusters of Ag nanocubes under low-intensity visible light illumination. Many studies devoted to water splitting, hydrogen evolution and oxygen evolution were recently reported [49][50][51][52] and reviewed.…”

Section: Plasmonic Electrochemistrymentioning

confidence: 99%

From active plasmonic devices to plasmonic molecular electronics

Lacroix

Quynh

et al. 2019

Polymer International

View full text Add to dashboard Cite

This work is mainly focused on studies combining plasmonic nanostructures and π‐conjugated systems. It describes active molecular plasmonic devices in which π‐conjugated molecules and polymers, grafted on gold nanoparticles, are used to tune the plasmonic properties of metal nanostructures. It also explores two emerging research fields, i.e. plasmonic electrochemistry and plasmonic molecular electronics. In the former, electrochemical reactions are controlled and triggered by plasmons which yield various light‐induced electrochemical reactions at the nanoscale. In the latter, one combines molecular plasmonics and molecular electronics in plasmonic molecular devices. © 2018 Society of Chemical Industry

show abstract

“…[13][14][15] For example, the dissociation of H 2 , water splitting, reduction of CO 2 , conversion of CO to CO 2 , degradation of pesticides, and so on. [16][17][18][19][20][21][22] Therefore, the surface plasmon played the dual roles in enhancing surface Raman signal and inducing the surface chemical reaction. By the integration of the giant enhancement and catalytic activities of plasmon, SERS has been developed as a promising technique to in situ monitor the plasmoninduced chemical reaction at molecular level.…”

Section: Introductionmentioning

confidence: 99%

In situ surface‐enhanced Raman spectroscopic monitoring electrochemical and surface plasmon resonance synergetic catalysis on dehydroxylation of PHTP at Ag electrodes

Zhang

et al. 2018

J Raman Spectroscopy

View full text Add to dashboard Cite

Surface plasmon resonance (SPR)‐driven heterogeneous catalytic reactions have attracted considerable interests. However, the application of SPR was restricted in few types of surface reaction; the extension of SPR‐catalyzed reaction still remains significant challenge. The introduction of additional external fields is expected to generate the synergetic effect for improving the performance of SPR catalytic reaction. Herein, the roughened Ag electrode played as a substrate for introducing the second external field, that is, electrochemical control. A probe molecule, p‐hydroxythiophenol (PHTP), was preanchored onto Ag electrodes and surface‐enhanced Raman spectroscopy was employed to monitor the surface processes. It demonstrated that the PHTP underwent the dehydroxylation reaction to produce the thiophenol (TP) by the appropriate excitation line and potentials. It disappeared on Ag roughened electrodes without electrochemical control or on a smooth charged surface attached with shell‐isolated nanoparticles. It suggested that the dehydroxylation reaction was contributed by the synergetic effects of localized SPR and applied potential. The results revealed that the efficiency of dehydroxylation was critically depended on wavelength and power of laser, potential, as well as solution pH. The hydrogen sources were essential for dehydroxylation and protonated hydroxyl group promoted the process for producing TP, thus, the dehydroxylation of PHTP was more favorable in acidic solution than that in a neutral case, while it was inhibited completely in alkaline environment. With the appropriate potential, the size of the nanostructures on Ag electrode surface and the corresponding surface plasmon band resulted in the higher efficiency with matched laser wavelength at about 532 nm. The synergetic effects of SPR and potential allowed the extension of the SPR catalysis to a new catalogue of surface reaction, that is, dehydroxylation. It was beneficial to develop the SPR catalysis as a promising approach in the surface chemistry.

show abstract

Water-promoted C-S bond formation reactions

Cited by 100 publications

References 27 publications

In‐situ SHINERS Study of the Size and Composition Effect of Pt‐based Nanocatalysts in Catalytic Hydrogenation

In‐situ SHINERS Study of the Size and Composition Effect of Pt‐based Nanocatalysts in Catalytic Hydrogenation

From active plasmonic devices to plasmonic molecular electronics

In situ surface‐enhanced Raman spectroscopic monitoring electrochemical and surface plasmon resonance synergetic catalysis on dehydroxylation of PHTP at Ag electrodes

Contact Info

Product

Resources

About