In Situ Surface‐Enhanced Raman Spectroscopy Study of Plasmon‐Driven Catalytic Reactions of 4‐Nitrothiophenol under a Controlled Atmosphere

Kang, Leilei; Han, Xijiang; Chu, Jiayu; Xiong, Jie; He, Xiwen; Wang, Hsing‐Lin; Xu, Ping

doi:10.1002/cctc.201403032

Cited by 61 publications

(53 citation statements)

References 44 publications

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“…[74][75][76][77][78][79][80][81][82][83][84][85][86][87][88] Although it has been reported that it is possible to produce azobenzene derivatives from aromatic nitro and amine compounds, the reaction mechanism is not clear. Zhao et al explained the selective formation of azobenzene derivatives from p-substituted nitrobenzenes and anilines using the photoinduced charge transfer model based on TDDFT methods (Figure 9c).…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

“…[74] To date, several in-depth studies have been reported to support and confirm the plasmon-driven chemical reactions for various substrates (e.g., triangular Au nanoplates, Ag microflowers or nanoparticle arrays) and advanced techniques (e.g., TERS). [75][76][77][78][79][80][81][82] In 2012, the Deckert and Weckhuysen group monitored hot electron-assisted photocatalytic reactions of pNTP at nanoscale using the TERS technique (Figure 10b). [79] Green and red laser sources were used for inducing photocatalytic reduction and monitoring the transformation process, respectively.…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

See 1 more Smart Citation

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Kim

Lin

Son

et al. 2017

Advanced Optical Materials

151

114

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Hot electron chemistry has drawn tremendous attention from applications related to materials, energy, sensing, and catalysis. The plasmon‐induced generation of hot electrons and their transfer behavior are very important for understanding plasmonic‐enhanced applications and for achieving practically useful efficiency. From a plasmonic perspective, well‐designed plasmonic structures that can manipulate surface plasmons are able to enhance the efficiencies of hot electron‐based processes. This progress report summarizes the recent experimental and theoretical advances on the hot electron effect, emphasizing the crucial role of surface plasmons that are highly designable by using metal nanostructures. In particular, recent breakthroughs in the emerging fields of heterogeneous catalysis based on the hot electron effect are highlighted. Important design principles, mechanisms, and concepts, as well as challenges and perspectives, are illustrated and discussed.

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Section: Wwwadvopticalmatdementioning

confidence: 99%

Section: Wwwadvopticalmatdementioning

confidence: 99%

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Kim

Lin

Son

et al. 2017

Advanced Optical Materials

151

114

View full text Add to dashboard Cite

show abstract

“…105 The chlorinated graphene exhibited similar electronic property with fluorinated graphene, and the resistance of chlorinated graphene could be increased by 4 orders of magnitude. 13,111 For graphene mediated SERS substrates, chemically inert graphene exposed in air could also be vulnerable upon laser irradiation, resulting in unexpected changes in SERS spectra. Tanigaki et al discovered that laser irradiation could trigger a photochemical reaction on graphene in an ambient condition (Fig.…”

Section: Laser-induced Surface Modifications Of Graphenementioning

confidence: 99%

Recent progress in the applications of graphene in surface-enhanced Raman scattering and plasmon-induced catalytic reactions

et al. 2015

Self Cite

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Graphene continues to attract tremendous interest, owing to its excellent optical and electronic properties. On the basis of its unique features, graphene has been employed in the ever-expanding research fields. Surface-enhanced Raman scattering (SERS) may be one of the significant applied fields where graphene can make a difference. Since its discovery, SERS technique has been capable of ultra sensitively detecting chemical and biological molecules at very low concentration, even at single molecule level, but some problems, such as irreproducible SERS signals, should be overcome before practical application on spectra analysis. Graphene can be a promising candidate to make up the deficiency of conventional metal SERS substrate. Furthermore, graphene, serving as the enhancement material, is usually deemed as a chemically inert substance to isolate the interactions between metal and probe molecules. While, irradiated by laser, structure changes of graphene under specific conditions and the contributions of its high electron mobility in plasmoninduced catalytic reactions are often ignored. In this review, we mainly focus on the state-of-the-art applications of graphene in the fields of SERS and laser-induced catalytic reactions. The advances of informative Raman spectra of graphene are firstly reviewed. Then, the graphene related SERS substrates, including graphene-enhanced Raman scattering (GERS) and graphene-mediated SERS (G-SERS), are summarized. We finally highlight the catalytic reactions occurring on graphene itself and molecules adsorbed onto graphene upon laser irradiation.In this review, we mainly focus on the state-of-the-art applications of graphene in the fields of Surfaceenhanced Raman scattering (SERS) and plasmon-induced catalytic reactions. The advances of informative Raman spectra of graphene are firstly reviewed. Then, the graphene related SERS substrates, including graphene-enhanced Raman scattering (GERS) and graphene-mediated SERS (G-SERS), are summarized. We finally highlight the catalytic reactions occurring on graphene itself and molecules adsorbed onto graphene upon laser irradiation.

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“…The above reports demonstrated the inhibition of the SPR‐induced coupling reaction of PATP and similar molecules by electrochemical control. So far, the SPR‐catalyzed reaction was still restricted to a few organic reactions, including the N‐N coupling, decarboxylation, the transformation of nitro to amino group, and so on . Therefore, it is worth extending the SPR‐catalyzed organic reaction.…”

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

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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.

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In Situ Surface‐Enhanced Raman Spectroscopy Study of Plasmon‐Driven Catalytic Reactions of 4‐Nitrothiophenol under a Controlled Atmosphere

Cited by 61 publications

References 44 publications

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Recent progress in the applications of graphene in surface-enhanced Raman scattering and plasmon-induced catalytic reactions

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

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