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Negahdar L, Parlett CMA, Isaacs MA, Beale AM, Wilson K, Lee AF. Shining light on the solid–liquid interface: in situ/ operando monitoring of surface catalysis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00555j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Many industrially important chemical transformations occur at the interface between a solid catalyst and liquid reactants. In situ and operando spectroscopies offer unique insight into the reactivity of such catalytically active solid–liquid interfaces.
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Affiliation(s)
| | - Christopher M. A. Parlett
- Department of Chemical Engineering & Analytical Science
- The University of Manchester
- Manchester
- UK
- Diamond Light Source
| | | | | | - Karen Wilson
- Centre for Advanced Materials and Industrial Chemistry (CAMIC)
- School of Science
- RMIT University
- Melbourne
- Australia
| | - Adam F. Lee
- Centre for Advanced Materials and Industrial Chemistry (CAMIC)
- School of Science
- RMIT University
- Melbourne
- Australia
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2
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Surface-Enhanced Raman Spectroscopy Based on a Silver-Film Semi-Coated Nanosphere Array. SENSORS 2019; 19:s19183966. [PMID: 31540010 PMCID: PMC6767132 DOI: 10.3390/s19183966] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/02/2019] [Accepted: 09/12/2019] [Indexed: 11/26/2022]
Abstract
In this paper, we present a convenient and economical method to fabricate a silver (Ag)-film semi-coated polystyrene (PS) nanosphere array substrate for surface-enhanced Raman spectroscopy (SERS). The SERS substrate was fabricated using the modified self-assembled method combined with the vacuum thermal evaporation method. By changing the thickness of the Ag film, the surface morphology of the Ag film coated on the PS nanospheres can be adjusted to obtain the optimized localized surface plasmonic resonance (LSPR) effect. The 3D-finite-difference time-domain simulation results show that the SERS substrate with an Ag film thickness of 10 nm has tens of times the electric field intensity enhancement. The Raman examination results show that the SERS substrate has excellent reliability and sensitivity using rhodamine-6G (R6G) and rhodamine-B (RB) as target analytes, and the Raman sensitivity can reach 10−10 M. Meanwhile, the SERS substrate has excellent uniformity based on the Raman mapping result. The Raman enhancement factor of the SERS substrate was estimated to be 5.1 × 106. This kind of fabrication method for the SERS substrate may be used in some applications of Raman examination.
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3
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Hoener BS, Kirchner SR, Heiderscheit TS, Collins SS, Chang WS, Link S, Landes CF. Plasmonic Sensing and Control of Single-Nanoparticle Electrochemistry. Chem 2018. [DOI: 10.1016/j.chempr.2018.04.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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4
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Zhang W, Li C, Gao K, Lu F, Liu M, Li X, Zhang L, Mao D, Gao F, Huang L, Mei T, Zhao J. Surface-enhanced Raman spectroscopy with Au-nanoparticle substrate fabricated by using femtosecond pulse. NANOTECHNOLOGY 2018; 29:205301. [PMID: 29485408 DOI: 10.1088/1361-6528/aab294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Au-nanoparticle (Au-NP) substrates for surface-enhanced Raman spectroscopy (SERS) were fabricated by grid-like scanning a Au-film using a femtosecond pulse. The Au-NPs were directly deposited on the Au-film surface due to the scanning process. The experimentally obtained Au-NPs presented local surface plasmon resonance effect in the visible spectral range, as verified by finite difference time domain simulations and measured reflection spectrum. The SERS experiment using the Au-NP substrates exhibited high activity and excellent substrate reproducibility and stability, and a clearly present Raman spectra of target analytes, e.g. Rhodamine-6G, Rhodamine-B and Malachite green, with concentrations down to 10-9 M. This work presents an effective approach to producing Au-NP SERS substrates with advantages in activity, reproducibility and stability, which could be used in a wide variety of practical applications for trace amount detection.
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Affiliation(s)
- Wending Zhang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
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Jin Y, Wang Y, Chen M, Xiao X, Zhang T, Wang J, Jiang K, Fan S, Li Q. Highly Sensitive, Uniform, and Reproducible Surface-Enhanced Raman Spectroscopy Substrate with Nanometer-Scale Quasi-periodic Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32369-32376. [PMID: 28853546 DOI: 10.1021/acsami.7b08807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We introduce a simple and cost-effective approach for fabrication of effective surface-enhanced Raman spectroscopy (SERS) substrates. It is shown that the as-fabricated substrates show excellent SERS effects in various probe molecules with high sensitivity, that is, picomolar level detection, and also good reliability. With a SERS enhancement factor beyond 108 and excellent reproducibility (deviation less than 5%) of signal intensity, the fabrication of the SERS substrate is realized on a four-inch wafer and proven to be effective in pesticide residue detection. The SERS substrate is realized first through the fabrication of quasi-periodic nanostructured silicon with dimension features in tens of nanometers using superaligned carbon nanotubes networks as an etching mask, after which a large amount of hot spots with nanometer gaps are formed through deposition of a gold film. With rigorous nanostructure design, the enhanced performance of electromagnetic field distribution for nanostructures is optimized. With the advantage of cost-effective large-area preparation, it is believed that the as-fabricated SERS substrate could be used in a wide variety of actual applications where detection of trace amounts is necessary.
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Affiliation(s)
- Yuanhao Jin
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Yingcheng Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Mo Chen
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Xiaoyang Xiao
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Tianfu Zhang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Jiaping Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Kaili Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Shoushan Fan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Qunqing Li
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
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Hou R, Shynkar V, Lafargue C, Kolkowski R, Zyss J, Lagugné-Labarthet F. Second harmonic generation from gold meta-molecules with three-fold symmetry. Phys Chem Chem Phys 2016; 18:7956-65. [DOI: 10.1039/c6cp00154h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Polarization dependence SHG measurements reveal four-lobe patterns which can be assigned to structures with three-fold symmetry.
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Affiliation(s)
- Renjie Hou
- Department of Chemistry
- Department of Physics and Astronomy
- The University of Western Ontario
- London
- Canada
| | - Vasyl Shynkar
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Clément Lafargue
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Radoslaw Kolkowski
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
- Advanced Materials Engineering and Modelling Group
| | - Joseph Zyss
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
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Tan CS, Chen HY, Chen HS, Gwo S, Chen LJ. Intermediates in the cation reactions in solution probed by an in situ surface enhanced Raman scattering method. Sci Rep 2015; 5:13759. [PMID: 26333518 PMCID: PMC4558718 DOI: 10.1038/srep13759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 08/05/2015] [Indexed: 11/12/2022] Open
Abstract
For chemical reactions in liquid state, such as catalysis, understanding of dynamical changes is conducive to practical applications. Solvation of copper salts in aqueous solution has implications for life, the environment, and industry. In an ongoing research, the question arises that why the color of aqueous CuCl2 solution changes with solution concentration? In this work, we have developed a convenient and efficient in situ surface enhanced Raman scattering technique to probe the presence of many intermediates, some of them are responsible for color change, in crystallization of aqueous copper chloride solution. The versatility of the novel technique was confirmed in the identification of five intermediates states in the transition from CdS to MoS2 nanowires in solution. The facile in situ method is expected to be widely applicable in probing intermediate states in a variety of chemical reactions in solution.
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Affiliation(s)
- Chih-Shan Tan
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Hung-Ying Chen
- Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Hsueh-Szu Chen
- Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shangjr Gwo
- Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Lih-Juann Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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8
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Liu L, Jin M, Zhou Q, Zhan R, Chen H, Gao X, Senz S, Zhang Z, Liu J. Bottom-up growth of Ag/a-Si@Ag arrays on silicon as a surface-enhanced Raman scattering substrate with high sensitivity and large-area uniformity. RSC Adv 2015. [DOI: 10.1039/c5ra00512d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bottom-up growth of Ag/a-Si@Ag arrays on Si, which worked as a highly sensitive SERS substrate.
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Affiliation(s)
- Liwei Liu
- Institute for Advanced Materials
- Laboratory of Quantum Engineering and Quantum Materials
- South China Academy of Advanced Optoelectronics
- South China Normal University
- Guangzhou 510006
| | - Mingliang Jin
- Electronic Paper Display Institute
- South China Academy of Advanced Optoelectronics
- South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Qingwei Zhou
- Institute for Advanced Materials
- Laboratory of Quantum Engineering and Quantum Materials
- South China Academy of Advanced Optoelectronics
- South China Normal University
- Guangzhou 510006
| | - Runze Zhan
- State Key Laboratory of Optoelectronic Materials and Technologies
- Guangdong Province Key Laboratory of Display Material and Technology
- School of Physics and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Huanjun Chen
- State Key Laboratory of Optoelectronic Materials and Technologies
- Guangdong Province Key Laboratory of Display Material and Technology
- School of Physics and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Xingsen Gao
- Institute for Advanced Materials
- Laboratory of Quantum Engineering and Quantum Materials
- South China Academy of Advanced Optoelectronics
- South China Normal University
- Guangzhou 510006
| | - Stephan Senz
- Max Plank Institute of Microstructure Physics
- Halle 06120
- Germany
| | - Zhang Zhang
- Institute for Advanced Materials
- Laboratory of Quantum Engineering and Quantum Materials
- South China Academy of Advanced Optoelectronics
- South China Normal University
- Guangzhou 510006
| | - Junming Liu
- Laboratory of Solid State Microstructures
- Nanjing University
- Nanjing 210093
- China
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Shi H, Lercher JA, Yu XY. Sailing into uncharted waters: recent advances in the in situ monitoring of catalytic processes in aqueous environments. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01720j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents recent advances inin situstudies of catalytic processes in the aqueous environment with an outlook of mesoscale imaging.
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Affiliation(s)
- Hui Shi
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
| | - Johannes A. Lercher
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
- Department of Chemistry
| | - Xiao-Ying Yu
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
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Li L, Steiner U, Mahajan S. Single nanoparticle SERS probes of ion intercalation in metal-oxide electrodes. NANO LETTERS 2014; 14:495-498. [PMID: 24392779 DOI: 10.1021/nl403485e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Probing ion-intercalating processes in electrodes is hugely important for batteries, supercapacitors, and photovoltaic devices. In this work we use single-nanoparticle (NP) probes to see real-time molecular changes correlated to electrochemically modulated ion-intercalation in metal-oxide electrodes. Using surface-enhanced Raman spectroscopy (SERS) transduced by single NP probes, we observe that the Raman frequencies and spectral intensities of the adsorbed molecules vary on cycling the electrochemical potential on a vanadium-oxide electrode. The potential-dependent frequency shifts in SERS from an electrochemically inert molecule are attributed to a Stark effect induced by chemical and structural changes as a result of ion-intercalation processes in vanadium oxide. Our study opens up a unique strategy to explore adsorbates and molecular reaction pathways on ion-intercalating materials and semiconducting interfaces.
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Affiliation(s)
- Li Li
- Department of Physics, Cavendish Laboratory, University of Cambridge , Cambridge, CB3 0HE, United Kingdom
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11
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Hydrogen-atom-mediated electrochemistry. Nat Commun 2013; 4:2766. [DOI: 10.1038/ncomms3766] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Accepted: 10/14/2013] [Indexed: 11/08/2022] Open
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12
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Hill CM, Clayton DA, Pan S. Combined optical and electrochemical methods for studying electrochemistry at the single molecule and single particle level: recent progress and perspectives. Phys Chem Chem Phys 2013; 15:20797-807. [DOI: 10.1039/c3cp52756e] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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