1
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Bai C, Fan S, Li X, Wang J, Duan J, Shi J, Mao Y, Chen G. Role of Interfacial Water Structure in the Electroreduction of NO over Cu 2O. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46384-46391. [PMID: 39179524 DOI: 10.1021/acsami.4c10027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
The electrochemical nitric oxide reduction reaction (NORR), which utilizes water as the sole hydrogen source, has the potential to facilitate ammonia production while concurrently mitigating pollutants. However, limited research has been dedicated to characterizing the structure of interfacial water due to the challenges associated with probing this intricate system, impeding the development of more efficient catalysts for the NORR process. Herein, the Cu2O microcrystals with distinct exposed facets, including {100}, {110}, and {111}, are employed for the model catalysts to investigate interfacial water structure and intermediate species in the NORR process. The results from shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) indicated that the NORR performance in 0.1 M Na2SO4 (with heavy water as the solvent) was positively correlated to the proportion of hydrated Na+ ion water. In addition, a sequence of intermediates from the NORR, including *NOH, *NH, *NH2, and *NH3, was detected by employing a combination of multiple in situ characterization methods. Furthermore, in conjunction with experimental results and theoretical calculations, we revealed the potential reaction pathway of NORR. This study offers novel insights into the NORR mechanism and valuable guidance for the design of high-performance catalysts for ammonia production.
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Affiliation(s)
- Chunpeng Bai
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shiying Fan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jing Wang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jun Duan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jugong Shi
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yan Mao
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Guohua Chen
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong 999077, P. R China
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2
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Kamimura R, Maeda S, Hayashi T, Motobayashi K, Ikeda K. Why Is Surface-Enhanced Raman Scattering Insensitive to Liquid Water? J Am Chem Soc 2024; 146:22327-22334. [PMID: 39102527 DOI: 10.1021/jacs.4c04901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Surface-enhanced Raman scattering (SERS) is widely recognized as a remarkably powerful analytical technique that enables trace-level detection of organic molecules on a metal surface in aqueous systems with negligible spectral interference of water. This insensitivity of SERS to liquid water is violated in a restrictive manner under specific electrochemical conditions. However, the origin of such different SERS sensitivities to liquid water remains unclear. Here, we show that hydrogen-bond networks of water play a pivotal role in losing SERS enhancement for liquid water, and SERS detection of water requires local defects in the hydrogen-bond networks, which are formed around hydration shells of solute ions or on a polarized electrode surface. This work gives a new perspective on in situ SERS investigations in aqueous systems, including electrochemical and biological reactions.
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Affiliation(s)
- Ryuto Kamimura
- Program of Applied Physics, Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Shoichi Maeda
- Department of Materials Science and Engineering, School of Materials Science and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Tomohiro Hayashi
- Department of Materials Science and Engineering, School of Materials Science and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Kenta Motobayashi
- Program of Applied Physics, Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Katsuyoshi Ikeda
- Program of Applied Physics, Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
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3
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Zangana S, Veres M, Bonyár A. Surface-Enhanced Raman Spectroscopy (SERS)-Based Sensors for Deoxyribonucleic Acid (DNA) Detection. Molecules 2024; 29:3338. [PMID: 39064915 PMCID: PMC11279622 DOI: 10.3390/molecules29143338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/18/2024] [Accepted: 07/07/2024] [Indexed: 07/28/2024] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful technique for the detection and analysis of biomolecules due to its high sensitivity and selectivity. In recent years, SERS-based sensors have received significant attention for the detection of deoxyribonucleic acid (DNA) molecules, offering promising applications in fields such as medical diagnostics, forensic analysis, and environmental monitoring. This paper provides a concise overview of the principles, advancements, and potential of SERS-based sensors for DNA detection. First, the fundamental principles of SERS are introduced, highlighting its ability to enhance the Raman scattering signal by several orders of magnitude through the interaction between target molecules with metallic nanostructures. Then, the fabrication technologies of SERS substrates tailored for DNA detection are reviewed. The performances of SERS substrates previously reported for DNA detection are compared and analyzed in terms of the limit of detection (LOD) and enhancement factor (EF) in detail, with respect to the technical parameters of Raman spectroscopy (e.g., laser wavelength and power). Additionally, strategies for functionalizing the sensor surfaces with DNA-specific capture probes or aptamers are outlined. The collected data can be of help in selecting and optimizing the most suitable fabrication technology considering nucleotide sensing applications with Raman spectroscopy.
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Affiliation(s)
- Shireen Zangana
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
- HUN-REN Wigner Research Centre for Physics, 1525 Budapest, Hungary;
| | - Miklós Veres
- HUN-REN Wigner Research Centre for Physics, 1525 Budapest, Hungary;
| | - Attila Bonyár
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
- HUN-REN Wigner Research Centre for Physics, 1525 Budapest, Hungary;
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4
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Mandal I, Gangareddy J, Sethurajaperumal A, Nk M, Majji M, Bera S, Rudra P, Ravichandran V, Bysakh S, Jacob N, Rao KDM, Singh RK, Krishnan NMA, Chirumamilla M, Palanisamy T, Motapothula M, Varrla E, Ghosh S, Allu AR. H-Glass Supported Hybrid Gold Nano-Islands for Visible-Light-Driven Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401131. [PMID: 38563587 DOI: 10.1002/smll.202401131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/16/2024] [Indexed: 04/04/2024]
Abstract
Flat panel reactors, coated with photocatalytic materials, offer a sustainable approach for the commercial production of hydrogen (H2) with zero carbon footprint. Despite this, achieving high solar-to-hydrogen (STH) conversion efficiency with these reactors is still a significant challenge due to the low utilization efficiency of solar light and rapid charge recombination. Herein, hybrid gold nano-islands (HGNIs) are developed on transparent glass support to improve the STH efficiency. Plasmonic HGNIs are grown on an in-house developed active glass sheet composed of sodium aluminum phosphosilicate oxide glass (H-glass) using the thermal dewetting method at 550 °C under an ambient atmosphere. HGNIs with various oxidation states (Au0, Au+, and Au-) and multiple interfaces are obtained due to the diffusion of the elements from the glass structure, which also facilitates the lifetime of the hot electron to be ≈2.94 ps. H-glass-supported HGNIs demonstrate significant STH conversion efficiency of 0.6%, without any sacrificial agents, via water dissociation. This study unveils the specific role of H-glass-supported HGNIs in facilitating light-driven chemical conversions, offering new avenues for the development of high-performance photocatalysts in various chemical conversion reactions for large-scale commercial applications.
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Affiliation(s)
- Indrajeet Mandal
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
| | - Jagannath Gangareddy
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
| | - Abimannan Sethurajaperumal
- Sustainable Nanomaterials and Technologies Lab, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, 603203, India
| | - Murugasenapathi Nk
- Electrodics and Electrocatalysis Division (EEC), CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manikanta Majji
- Department of Physics, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
| | - Susmita Bera
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG CREST), Sector V, Salt Lake, Kolkata, 700091, India
| | - Pratyasha Rudra
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vanmathi Ravichandran
- Sustainable Nanomaterials and Technologies Lab, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, 603203, India
| | - Sandip Bysakh
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
| | - Noah Jacob
- Department of Physics, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
| | - K D M Rao
- School of Applied & Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Rajiv K Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Photovoltaic Metrology Section, Advanced Material and Devices Metrology Division, CSIR-National Physical Laboratory, New Delhi, 110012, India
| | - N M Anoop Krishnan
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Manohar Chirumamilla
- Department of Materials and Production, Aalborg University, Skjernvej 4A, Aalborg, 9220, Denmark
- Institute of Optical and Electronic Materials, Hamburg University of Technology, Eissendorfer Strasse 38, 21073, Hamburg, Germany
| | - Tamilarasan Palanisamy
- Electrodics and Electrocatalysis Division (EEC), CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - M Motapothula
- Department of Physics, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
| | - Eswaraiah Varrla
- Sustainable Nanomaterials and Technologies Lab, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, 603203, India
| | - Srabanti Ghosh
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amarnath R Allu
- CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, Kolkata, 700 032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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5
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Chen X, Wang XT, Le JB, Li SM, Wang X, Zhang YJ, Radjenovic P, Zhao Y, Wang YH, Lin XM, Dong JC, Li JF. Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction. Nat Commun 2023; 14:5289. [PMID: 37648700 PMCID: PMC10468501 DOI: 10.1038/s41467-023-41030-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023] Open
Abstract
Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which are elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H and *OH intermediates. Ru surfaces exist in different valence states in the reaction potential range, dissociating interfacial water differently and generating two distinct *H, resulting in different activities. The local cation tuning effect of hydrated Na+ ion water and the large work function of high-valence Ru(n+) surfaces promote interfacial water dissociation. Moreover, compared to low-valence Ru(0) surfaces, high-valence Ru(n+) surfaces have more moderate adsorption energies for interfacial water, *H, and *OH. They, therefore, facilitate the activity. Our findings demonstrate the regulation of valence state on interfacial water, intermediates, and finally the catalytic activity, which provide guidelines for the rational design of high-efficiency catalysts.
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Affiliation(s)
- Xing Chen
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xiao-Ting Wang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Jia-Bo Le
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Shu-Min Li
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xue Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yu-Jin Zhang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Petar Radjenovic
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Yu Zhao
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Yao-Hui Wang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xiu-Mei Lin
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Department of Chemistry and Environment Science, Fujian Province University Key Laboratory of Analytical Science, Minnan Normal University, Zhangzhou, 363000, China.
| | - Jin-Chao Dong
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
| | - Jian-Feng Li
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
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6
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Isogai T, Uranagase M, Motobayashi K, Ogata S, Ikeda K. Probing collective terahertz vibrations of a hydrogen-bonded water network at buried electrochemical interfaces. Chem Sci 2023; 14:6531-6537. [PMID: 37350835 PMCID: PMC10284101 DOI: 10.1039/d3sc01734f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/13/2023] [Indexed: 06/24/2023] Open
Abstract
The exceptional properties of liquid water such as thermodynamic, physical, and dielectric anomalies originate mostly from the hydrogen-bond networks of water molecules. The structural and dynamic properties of the hydrogen-bond networks have a significant impact on many biological and chemical processes in aqueous systems. In particular, the properties of interfacial water molecules with termination of the network at a solid surface are crucial to understanding the role of water in heterogeneous reactions. However, direct monitoring of the dynamics of hydrogen-bonded interfacial water molecules has been limited because of the lack of a suitable surface-selective spectroscopic means in the terahertz (THz) frequency range where collective vibrations of water exist. Here we show that hydrogen-bond vibrations below 9 THz can be measured in situ at an electrochemical interface, which is buried between two THz-opaque media, by using a density of states format of surface-enhanced inelastic light scattering spectra. The interpretation of the obtained spectra over the range 0.3-6 THz indicates that the negatively charged surface accelerates collective translational motions of water molecules in the lateral direction with the increase of hydrogen-bond defects. Alternatively, the positively charged surface results in suppression of lateral mobility. This work gives a new perspective on in situ spectroscopic investigations in heterogeneous reactions.
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Affiliation(s)
- Taichi Isogai
- Department of Physical Science and Engineering, Nagoya Institute of Technology Nagoya 466-8555 Japan
| | - Masayuki Uranagase
- Department of Physical Science and Engineering, Nagoya Institute of Technology Nagoya 466-8555 Japan
| | - Kenta Motobayashi
- Department of Physical Science and Engineering, Nagoya Institute of Technology Nagoya 466-8555 Japan
| | - Shuji Ogata
- Department of Physical Science and Engineering, Nagoya Institute of Technology Nagoya 466-8555 Japan
| | - Katsuyoshi Ikeda
- Department of Physical Science and Engineering, Nagoya Institute of Technology Nagoya 466-8555 Japan
- Frontier Research Institute for Materials Science (FRIMS), Nagoya Institute of Technology Nagoya 466-8555 Japan
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7
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In situ electrochemical Raman spectroscopy and ab initio molecular dynamics study of interfacial water on a single-crystal surface. Nat Protoc 2023; 18:883-901. [PMID: 36599962 DOI: 10.1038/s41596-022-00782-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/12/2022] [Indexed: 01/05/2023]
Abstract
The dynamics and chemistry of interfacial water are essential components of electrocatalysis because the decomposition and formation of water molecules could dictate the protonation and deprotonation processes on the catalyst surface. However, it is notoriously difficult to probe interfacial water owing to its location between two condensed phases, as well as the presence of external bias potentials and electrochemically induced reaction intermediates. An atomically flat single-crystal surface could offer an attractive platform to resolve the internal structure of interfacial water if advanced characterization tools are developed. To this end, here we report a protocol based on the combination of in situ Raman spectroscopy and ab initio molecular dynamics (AIMD) simulations to unravel the directional molecular features of interfacial water. We present the procedures to prepare single-crystal electrodes, construct a Raman enhancement mode with shell-isolated nanoparticle, remove impurities, eliminate the perturbation from bulk water and dislodge the hydrogen bubbles during in situ electrochemical Raman experiments. The combination of the spectroscopic measurements with AIMD simulation results provides a roadmap to decipher the potential-dependent molecular orientation of water at the interface. We have prepared a detailed guideline for the application of combined in situ Raman and AIMD techniques; this procedure may take a few minutes to several days to generate results and is applicable to a variety of disciplines ranging from surface science to energy storage to biology.
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8
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Chen J, Zhang X, Wu D. Dissociation reactions of hydrogen molecules at active sites on gold clusters: A
DFT
study. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jia‐Li Chen
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen University Xiamen China
| | - Xia‐Guang Zhang
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen University Xiamen China
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering Henan Normal University Xinxiang China
| | - De‐Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen University Xiamen China
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9
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Unconventional interfacial water structure of highly concentrated aqueous electrolytes at negative electrode polarizations. Nat Commun 2022; 13:5330. [PMID: 36088353 PMCID: PMC9464189 DOI: 10.1038/s41467-022-33129-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 09/02/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractWater-in-salt electrolytes are an appealing option for future electrochemical energy storage devices due to their safety and low toxicity. However, the physicochemical interactions occurring at the interface between the electrode and the water-in-salt electrolyte are not yet fully understood. Here, via in situ Raman spectroscopy and molecular dynamics simulations, we investigate the electrical double-layer structure occurring at the interface between a water-in-salt electrolyte and an Au(111) electrode. We demonstrate that most interfacial water molecules are bound with lithium ions and have zero, one, or two hydrogen bonds to feature three hydroxyl stretching bands. Moreover, the accumulation of lithium ions on the electrode surface at large negative polarizations reduces the interfacial field to induce an unusual “hydrogen-up” structure of interfacial water and blue shift of the hydroxyl stretching frequencies. These physicochemical behaviours are quantitatively different from aqueous electrolyte solutions with lower concentrations. This atomistic understanding of the double-layer structure provides key insights for designing future aqueous electrolytes for electrochemical energy storage devices.
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10
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Guha A, Sahoo M, Alam K, Rao DK, Sen P, Narayanan TN. Role of water structure in alkaline water electrolysis. iScience 2022; 25:104835. [PMID: 35992077 PMCID: PMC9389238 DOI: 10.1016/j.isci.2022.104835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/29/2022] [Accepted: 07/20/2022] [Indexed: 11/02/2022] Open
Abstract
Herein, with the help of experimental and first-principles density functional theory (DFT)-based studies, we have shown that structural changes in the water coordination in electrolytes having high alkalinity can be a possible reason for the reduced catalytic activity of platinum (Pt) in high pH. Studies with polycrystalline Pt electrodes indicate that electrocatalytic HER activity reduces in terms of high overpotential required, high Tafel slope, and high charge transfer resistances in concentrated aqueous alkaline electrolytes (say 6 M KOH) in comparison to that in low alkaline electrolytes (say 0.1 M KOH), irrespective of the counter cations (Na+, K+, or Rb+) present. The changes in the water structure of bulk electrolytes as well as that in electrode-electrolyte interface are studied. The results are compared with DFT-based analysis, and the study can pave new directions in studying the HER process in terms of the water structure near the electrode-electrolyte interface.
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Affiliation(s)
- Anku Guha
- Tata Institute of Fundamental Research-Hyderabad, Sy No 36/P Serilingampally Mandal, Telangana 500046, India
| | - Mihir Sahoo
- Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute, Prayagraj (Allahabad), Uttar Pradesh 211019, India
| | - Khorsed Alam
- Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute, Prayagraj (Allahabad), Uttar Pradesh 211019, India
| | - D. Krishna Rao
- Tata Institute of Fundamental Research-Hyderabad, Sy No 36/P Serilingampally Mandal, Telangana 500046, India
| | - Prasenjit Sen
- Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute, Prayagraj (Allahabad), Uttar Pradesh 211019, India
| | - Tharangattu N. Narayanan
- Tata Institute of Fundamental Research-Hyderabad, Sy No 36/P Serilingampally Mandal, Telangana 500046, India
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11
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Jeong S, Mai HD, Nam KH, Park CM, Jeon KJ. Self-Healing Graphene-Templated Platinum-Nickel Oxide Heterostructures for Overall Water Splitting. ACS NANO 2022; 16:930-938. [PMID: 35029361 DOI: 10.1021/acsnano.1c08506] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrocatalysts with dramatically enhanced water splitting efficiency, derived from controlled structures, phase transitions, functional activation, etc., have been developed recently. Herein, we report an in situ observation of graphene-based self-healing, in which this functional activation is induced by a redox reaction. Specifically, graphene on stainless steel (SUS) switches between graphene (C-C) and graphene oxide (C-O) coordination via an electrical redox reaction to activate water splitting. A heterostructure comprising Pt-NiO thin films on single-layer graphene directly grown on a SUS substrate (Pt-NiO/Gr-SUS) was also synthesized by electrodeposition. Pt-NiO/Gr-SUS exhibited water splitting activity with low Pt loading (<1 wt %). The findings provide valuable insight for designing robust electrodes based on reversible redox-induced self-healable graphene to develop more efficient catalysts.
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Affiliation(s)
- Sangmin Jeong
- Department of Environmental Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Hien Duy Mai
- Department of Environmental Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Ki-Hun Nam
- School of Materials Science and Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 39177, Republic of Korea
- Department of Energy Engineering Convergence, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Cheol-Min Park
- School of Materials Science and Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 39177, Republic of Korea
- Department of Energy Engineering Convergence, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Ki-Joon Jeon
- Department of Environmental Engineering, Inha University, Incheon 22212, Republic of Korea
- Program in Environmental and Polymer Engineering, Inha University, Incheon 22212, Republic of Korea
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12
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Tran HV, Ngo NM, Medhi R, Srinoi P, Liu T, Rittikulsittichai S, Lee TR. Multifunctional Iron Oxide Magnetic Nanoparticles for Biomedical Applications: A Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:503. [PMID: 35057223 PMCID: PMC8779542 DOI: 10.3390/ma15020503] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 01/02/2023]
Abstract
Due to their good magnetic properties, excellent biocompatibility, and low price, magnetic iron oxide nanoparticles (IONPs) are the most commonly used magnetic nanomaterials and have been extensively explored in biomedical applications. Although magnetic IONPs can be used for a variety of applications in biomedicine, most practical applications require IONP-based platforms that can perform several tasks in parallel. Thus, appropriate engineering and integration of magnetic IONPs with different classes of organic and inorganic materials can produce multifunctional nanoplatforms that can perform several functions simultaneously, allowing their application in a broad spectrum of biomedical fields. This review article summarizes the fabrication of current composite nanoplatforms based on integration of magnetic IONPs with organic dyes, biomolecules (e.g., lipids, DNAs, aptamers, and antibodies), quantum dots, noble metal NPs, and stimuli-responsive polymers. We also highlight the recent technological advances achieved from such integrated multifunctional platforms and their potential use in biomedical applications, including dual-mode imaging for biomolecule detection, targeted drug delivery, photodynamic therapy, chemotherapy, and magnetic hyperthermia therapy.
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Affiliation(s)
- Hung-Vu Tran
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
| | - Nhat M. Ngo
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
| | - Riddhiman Medhi
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
| | - Pannaree Srinoi
- Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
| | - Tingting Liu
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
| | - Supparesk Rittikulsittichai
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
| | - T. Randall Lee
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA; (H.-V.T.); (N.M.N.); (R.M.); (T.L.); (S.R.)
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Lin X, Shao A, Hua M, Tian X. A first principle study of water adsorbed on flat and stepped silver surfaces. Phys Chem Chem Phys 2022; 24:6803-6810. [DOI: 10.1039/d1cp04618g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structural, electronic and vibrational properties of a water layer on Ag(100) and Ag(511) have been studied by first principles calculations and ab initio molecular dynamics simulations. The most stable...
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14
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In situ Raman spectroscopy reveals the structure and dissociation of interfacial water. Nature 2021; 600:81-85. [PMID: 34853456 DOI: 10.1038/s41586-021-04068-z] [Citation(s) in RCA: 260] [Impact Index Per Article: 86.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/29/2021] [Indexed: 11/08/2022]
Abstract
Understanding the structure and dynamic process of water at the solid-liquid interface is an extremely important topic in surface science, energy science and catalysis1-3. As model catalysts, atomically flat single-crystal electrodes exhibit well-defined surface and electric field properties, and therefore may be used to elucidate the relationship between structure and electrocatalytic activity at the atomic level4,5. Hence, studying interfacial water behaviour on single-crystal surfaces provides a framework for understanding electrocatalysis6,7. However, interfacial water is notoriously difficult to probe owing to interference from bulk water and the complexity of interfacial environments8. Here, we use electrochemical, in situ Raman spectroscopic and computational techniques to investigate the interfacial water on atomically flat Pd single-crystal surfaces. Direct spectral evidence reveals that interfacial water consists of hydrogen-bonded and hydrated Na+ ion water. At hydrogen evolution reaction (HER) potentials, dynamic changes in the structure of interfacial water were observed from a random distribution to an ordered structure due to bias potential and Na+ ion cooperation. Structurally ordered interfacial water facilitated high-efficiency electron transfer across the interface, resulting in higher HER rates. The electrolytes and electrode surface effects on interfacial water were also probed and found to affect water structure. Therefore, through local cation tuning strategies, we anticipate that these results may be generalized to enable ordered interfacial water to improve electrocatalytic reaction rates.
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15
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Isogai T, Motobayashi K, Ikeda K. A single spectroscopic probe for in situ analysis of electronic and vibrational information at both sides of electrode/electrolyte interfaces using surface-enhanced Raman scattering. J Chem Phys 2021; 155:204702. [PMID: 34852477 DOI: 10.1063/5.0067355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Surface-enhanced Raman scattering (SERS) at electrode/electrolyte interfaces includes inelastic light scattering not only by molecular vibrations in the electrolyte phase but also by conduction electrons in the metal electrode phase. While the former, i.e., vibrational SERS (VSERS), is widely used to obtain chemical information on electrode surfaces, the latter, i.e., electronic SERS (ESERS), is still under discussion as a possible origin of the SERS background. Given that electronic Raman scattering is essentially sensitive to the surface charge density of a metal, we conducted a thorough comparison of electrochemical potential dependence of SERS signals in both acidic and alkaline media. Significant intensity changes in the SERS background were observed close to the respective potentials of zero charge in acidic and alkaline media, supporting the contention that the generation of the SERS background can be explained by the ESERS mechanism. Moreover, the ESERS intensities, as the SERS background, were reversibly varied by anion adsorption/desorption at the electrochemical interfaces in conjunction with VSERS features originated from surface-adsorbate vibrations. The sensitivity to the surface charge was much higher in this method than in the conventional combined method of reflectance and SERS. In situ monitoring of both chemical and electronic structures at electrode/electrolyte interfaces using a single spectroscopic probe can avoid various experimental uncertainties caused by combined application of different spectroscopic methods leading to facilitation of our deeper understanding of electrode processes.
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Affiliation(s)
- Taichi Isogai
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Kenta Motobayashi
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Katsuyoshi Ikeda
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
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16
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Devasenathipathy R, Rani KK, Liu J, Wu DY, Tian ZQ. Plasmon mediated photoelectrochemical transformations: The example of para-aminothiophenol. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137485] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhang M, Duan S, Luo S, Zhong Y, Yan J, Liu G, Mao B, Tian Z. Structural Exploration of Multilayered Ionic Liquid/Ag Electrode Interfaces by Atomic Force Microscopy and Surface‐Enhanced Raman Spectroscopy. ChemElectroChem 2020. [DOI: 10.1002/celc.202001294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Meng Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Sai Duan
- Collaborative Innovation Center of Chemistry for Energy Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials MOE Key Laboratory of Computational Physical Sciences Department of Chemistry Fudan University Shanghai 200433 P. R. China
| | - Siheng Luo
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Marine Environmental Science Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies Center for Marine Environmental Chemistry & Toxicology College of the Environment and Ecology Xiamen University Xiamen 361102 China
| | - Yunxin Zhong
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jiawei Yan
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Guokun Liu
- State Key Laboratory of Marine Environmental Science Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies Center for Marine Environmental Chemistry & Toxicology College of the Environment and Ecology Xiamen University Xiamen 361102 China
| | - Bingwei Mao
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zhongqun Tian
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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18
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Shen LF, Lu BA, Li YY, Liu J, Huang-Fu ZC, Peng H, Ye JY, Qu XM, Zhang JM, Li G, Cai WB, Jiang YX, Sun SG. Interfacial Structure of Water as a New Descriptor of the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2020; 59:22397-22402. [PMID: 32893447 DOI: 10.1002/anie.202007567] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 11/12/2022]
Abstract
Driven by the persisting poor understanding of the sluggish kinetics of the hydrogen evolution reaction (HER) on Pt in alkaline media, a direct correlation of the interfacial water structure and activity is still yet to be established. Herein, using Pt and Pt-Ni nanoparticles we first demonstrate a strong dependence of the proton donor structure on the HER activity and pH. The structure of the first layer changes from the proton acceptors to the donors with increasing pH. In the base, the reactivity of the interfacial water varied its structure, and the activation energies of water dissociation increased in the sequence: the dangling O-H bonds < the trihedrally coordinated water < the tetrahedrally coordinated water. Moreover, optimizing the adsorption of H and OH intermediates can re-orientate the interfacial water molecules with their H atoms pointing towards the electrode surface, thereby enhancing the kinetics of HER. Our results clarified the dynamic role of the water structure at the electrode-electrolyte interface during HER and the design of highly efficient HER catalysts.
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Affiliation(s)
- Lin-Fan Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Bang-An Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Yu-Yang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Jia Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Zhi-Chao Huang-Fu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Hao Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Jin-Yu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Xi-Ming Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Jun-Ming Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Guang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Wen-Bin Cai
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yan-Xia Jiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Shi-Gang Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
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19
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Shen L, Lu B, Li Y, Liu J, Huang‐fu Z, Peng H, Ye J, Qu X, Zhang J, Li G, Cai W, Jiang Y, Sun S. Interfacial Structure of Water as a New Descriptor of the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lin‐fan Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Bang‐an Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Yu‐yang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Jia Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Zhi‐chao Huang‐fu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Hao Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Jin‐yu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Xi‐ming Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Jun‐ming Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Guang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Wen‐bin Cai
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy Materials Department of Chemistry Fudan University Shanghai 200433 China
| | - Yan‐xia Jiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
| | - Shi‐gang Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 PR China
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20
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Kim DI, Park JH, Seo H, Hong SG, Kim HJ, Ahn H, Kim J, Moon GD, Hyun DC. Polymer particles with controllable and complex structures for high immobilization of noble-metal nanoparticles. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Wang Y, Jiang F, Zhao X, Wang B, Shi Y, Zhang L, Liu J. In Situ SERS Detection of Photocatalytic Degradation of Aminothiophenol on Carbon-Nanotubes/CoPt Hollow Nanoparticles Composite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11629-11634. [PMID: 31402666 DOI: 10.1021/acs.langmuir.9b01171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The phenol derivatives, as one kind of hormone, are analogous to endocrine disruptors with high carcinogenicity. The photocatalytic technology is an effective approach to mitigate environmental pollution by utilizing solar energy to degrade organic pollutants. In this work, CoPt hollow nanoparticles (NPs) attached to carbon nanotubes (CNTs) are employed to catalytically decompose the p-aminothiophenol (PATP) molecules under light irradiation, which is monitored by using surface-enhanced Raman scattering spectra. The effect of temperature on the catalytic efficacy of CoPt hollow NPs is investigated. Moreover, the use of CNTs coating on CoPt NPs is found to accelerate the photocatalytic degradation rate of PATP molecules, attributed to the enhanced plasmon-exciton coupling interaction of the CoPt/CNTs hybrid configuration.
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Affiliation(s)
- Yinong Wang
- Dalian University of Technology , Panjin 124221 , Liaoning Province, China
| | - Feng Jiang
- Dalian University of Technology , Panjin 124221 , Liaoning Province, China
| | - Xiuming Zhao
- Dalian University of Technology , Panjin 124221 , Liaoning Province, China
| | - Bomin Wang
- Dalian University of Technology , Panjin 124221 , Liaoning Province, China
| | - Ying Shi
- Institute of Atomic and Molecular Physics , Jilin University , Changchun 130012 , Jilin Province, China
| | - Liang Zhang
- Weifang University of Science & Technology , Shouguang 262700 , Shandong Province, China
| | - Jinzhang Liu
- School of Materials Science and Engineering , Beihang University , Beijing 100083 , China
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22
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Gilles M, Brun E, Sicard-Roselli C. Quantification of hydroxyl radicals and solvated electrons produced by irradiated gold nanoparticles suggests a crucial role of interfacial water. J Colloid Interface Sci 2018; 525:31-38. [DOI: 10.1016/j.jcis.2018.04.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 03/09/2018] [Accepted: 04/04/2018] [Indexed: 12/26/2022]
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23
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Kuwana R, Handa S, Futamata M. Elucidation of hydrated metal ions using flocculation-surface enhanced Raman scattering. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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Panneerselvam R, Liu GK, Wang YH, Liu JY, Ding SY, Li JF, Wu DY, Tian ZQ. Surface-enhanced Raman spectroscopy: bottlenecks and future directions. Chem Commun (Camb) 2018; 54:10-25. [DOI: 10.1039/c7cc05979e] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This feature article discusses developmental bottleneck issues in surface Raman spectroscopy in its early stages and surface-enhanced Raman spectroscopy (SERS) in the past four decades and future perspectives.
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Affiliation(s)
- Rajapandiyan Panneerselvam
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Guo-Kun Liu
- Department of the Environment & Ecology
- State Key Laboratory of Marine Environmental Science
- Xiamen University
- Xiamen 361102
- China
| | - Yao-Hui Wang
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- Xiamen University
- Xiamen 361005
- China
| | - Jun-Yang Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Song-Yuan Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- iChEM
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
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25
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Li Q, Chen M. SERRS and absorption spectra of pyridine on Au m Ag n (m + n = 6) bimetallic nanoclusters: substrate composition and applied electric field effects. NANOTECHNOLOGY 2017; 28:475201. [PMID: 28885195 DOI: 10.1088/1361-6528/aa8b58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surface-enhanced Raman scattering (SERS) and absorption spectra of the pyridine molecule adsorbed on Au m Ag n (m + n = 6) bimetallic clusters are theoretically investigated by time-dependent density functional theory. The contributions of static chemical enhancement to the ground-state system are analyzed, and the static Raman intensity of Py-Au m Ag n complexes are enhanced by an order of 10. A method of visualization on charge transfer is used to distinguish the contributions of charge-transfer enhancement and electromagnetic enhancement. The intensity of surface-enhanced resonance Raman scattering (SERRS) spectroscopy of Py-Au m Ag n is strongly enhanced by an order of 103-105, compared to the static Raman intensity of pyridine. The influence of the static external electric field on SERS is investigated by calculating the optical properties of the Py-Au3Ag3 complex. The intensity of SERRS spectra and normal Raman spectra can be significantly enhanced by the positive electric fields, and the intensities of specific Raman vibrational modes could be selectively enhanced or weakened by tuning the direction and strength of the static electric field applied on Py-Au3Ag3.
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Affiliation(s)
- Quanjiang Li
- Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China
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Li JF, Zhang YJ, Ding SY, Panneerselvam R, Tian ZQ. Core-Shell Nanoparticle-Enhanced Raman Spectroscopy. Chem Rev 2017; 117:5002-5069. [PMID: 28271881 DOI: 10.1021/acs.chemrev.6b00596] [Citation(s) in RCA: 518] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Core-shell nanoparticles are at the leading edge of the hot research topics and offer a wide range of applications in optics, biomedicine, environmental science, materials, catalysis, energy, and so forth, due to their excellent properties such as versatility, tunability, and stability. They have attracted enormous interest attributed to their dramatically tunable physicochemical features. Plasmonic core-shell nanomaterials are extensively used in surface-enhanced vibrational spectroscopies, in particular, surface-enhanced Raman spectroscopy (SERS), due to the unique localized surface plasmon resonance (LSPR) property. This review provides a comprehensive overview of core-shell nanoparticles in the context of fundamental and application aspects of SERS and discusses numerous classes of core-shell nanoparticles with their unique strategies and functions. Further, herein we also introduce the concept of shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) in detail because it overcomes the long-standing limitations of material and morphology generality encountered in traditional SERS. We then explain the SERS-enhancement mechanism with core-shell nanoparticles, as well as three generations of SERS hotspots for surface analysis of materials. To provide a clear view for readers, we summarize various approaches for the synthesis of core-shell nanoparticles and their applications in SERS, such as electrochemistry, bioanalysis, food safety, environmental safety, cultural heritage, materials, catalysis, and energy storage and conversion. Finally, we exemplify about the future developments in new core-shell nanomaterials with different functionalities for SERS and other surface-enhanced spectroscopies.
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Affiliation(s)
- Jian-Feng Li
- State Key Laboratory for Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, iChEM, Xiamen University , Xiamen 361005, China.,Department of Physics, Xiamen University , Xiamen 361005, China
| | - Yue-Jiao Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, iChEM, Xiamen University , Xiamen 361005, China
| | - Song-Yuan Ding
- State Key Laboratory for Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, iChEM, Xiamen University , Xiamen 361005, China
| | - Rajapandiyan Panneerselvam
- State Key Laboratory for Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, iChEM, Xiamen University , Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory for Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, iChEM, Xiamen University , Xiamen 361005, China
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27
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Galperin M. Photonics and spectroscopy in nanojunctions: a theoretical insight. Chem Soc Rev 2017; 46:4000-4019. [DOI: 10.1039/c7cs00067g] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Green function methods for photonics and spectroscopy in nanojunctions.
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Affiliation(s)
- Michael Galperin
- Department of Chemistry & Biochemistry
- University of California San Diego
- La Jolla
- USA
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28
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Bryan WW, Jamison AC, Chinwangso P, Rittikulsittichai S, Lee TC, Lee TR. Preparation of THPC-generated silver, platinum, and palladium nanoparticles and their use in the synthesis of Ag, Pt, Pd, and Pt/Ag nanoshells. RSC Adv 2016. [DOI: 10.1039/c6ra10717f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Seed nanoparticles of Ag, Pt, and Pd (typically ≤4 nm in diameter) were synthesized using tetrakis(hydroxymethyl)phosphonium chloride (THPC) as reducing agent and utilized to prepare Ag, Pt, and Pd nanoshells, as well as hybrid Pt/Ag nanoshells, on silica cores.
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Affiliation(s)
- William W. Bryan
- Department of Chemistry and the Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | - Andrew C. Jamison
- Department of Chemistry and the Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | - Pawilai Chinwangso
- Department of Chemistry and the Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | | | - Tai-Chou Lee
- Department of Chemical and Materials Engineering
- National Central University
- Jhongli City 32001
- Taiwan
| | - T. Randall Lee
- Department of Chemistry and the Texas Center for Superconductivity
- University of Houston
- Houston
- USA
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29
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Smith SR, Seenath R, Kulak MR, Lipkowski J. Characterization of a Self-Assembled Monolayer of 1-Thio-β-D-Glucose with Electrochemical Surface Enhanced Raman Spectroscopy Using a Nanoparticle Modified Gold Electrode. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10076-10086. [PMID: 26313341 DOI: 10.1021/acs.langmuir.5b02767] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Preparation of a nanoparticle modified gold substrate designed for characterization of hydrophilic self-assembled monolayers (SAMs) of 1-thio-β-D-glucose (TG) with electrochemical surface-enhanced Raman spectroscopy (EC-SERS) is presented. Citrate stabilized gold nanoparticles were deposited on a polycrystalline gold electrode and subjected to an electrochemical desorption procedure to completely remove all traces of adsorbed citrate. Complete desorption of citrate was confirmed by recording cyclic voltammetry curves and SERS spectra. The citrate-free nanoparticle modified gold electrode was then incubated in a 1 mg mL(-1) aqueous solution of TG for 16 h prior to being characterized by EC-SERS. The SERS spectra confirmed that at potentials more negative than -0.10 V vs SCE thioglucose forms a monolayer in which the majority of the molecules preserve their lactol ring structure and only a small fraction of molecules appear to be oxidized. At potentials more positive than -0.10 V, the oxidation of TG molecules becomes prominent, and at potentials more positive than 0.20 V vs SCE, the monolayer of TG consists chiefly of oxidized product. The SERS spectra collected in the double layer region suggest the SAM of TG is well hydrated and hence can be used for hydrophilic modifications of a gold surface.
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Affiliation(s)
- Scott R Smith
- Department of Chemistry, University of Guelph , Guelph ON, Canada N1G 2W1
| | - Ryan Seenath
- Department of Chemistry, University of Guelph , Guelph ON, Canada N1G 2W1
| | - Monika R Kulak
- Department of Chemistry, University of Guelph , Guelph ON, Canada N1G 2W1
| | - Jacek Lipkowski
- Department of Chemistry, University of Guelph , Guelph ON, Canada N1G 2W1
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30
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Matulaitienė I, Pociūtė E, Kuodis Z, Eicher-Lorka O, Niaura G. Interaction of 4-imidazolemethanol with a copper electrode revealed by isotope-edited SERS and theoretical modeling. Phys Chem Chem Phys 2015; 17:16483-93. [PMID: 26050758 DOI: 10.1039/c5cp01290b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorption of 4-imidazolemethanol (ImMeOH) on a copper electrode has been investigated by in situ isotope-edited (H/D and (63)Cu/(65)Cu) surface enhanced Raman spectroscopy (SERS) in aqueous solutions at physiological pH (7.0) in a potential window from -0.500 to -1.100 V. Theoretical modeling by DFT calculations at the B3LYP/6-311++G(d,p) level for light atoms and LANL2DZ with ECP for copper atoms have been employed for the interpretation of experimental data. The copper surface was modeled by a cluster of 6 atoms. It was found that the imidazole ring adopts Tautomer-I form in the adsorbed state and coordinates with the Cu surface through the N3 atom. Linear potential-dependence of ν(C4=C5) mode with the slope of (15 ± 1) cm(-1) V(-1) was experimentally observed. The imidazole ring mode near 1492 cm(-1) primarily due to ν(C2-N3) + β(C2H) vibration has also showed a considerable decrease in frequency at more negative electrode potentials with the slope of (9 ± 2) cm(-1) V(-1). Both modes can be used as sensitive probes for analysis of interaction of the imidazole ring with the metal surface. In agreement with experimental data theoretical modeling has predicted higher stability of surface bound Tautomer-I compared with Tautomer-II. The formation of a covalent bond between the metal and adsorbate was experimentally evidenced by metal isotopic ((63)Cu/(65)Cu) frequency shift of ν(Cu-N) mode at 222 cm(-1), combined with theoretical modeling of the surface complex.
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Affiliation(s)
- Ieva Matulaitienė
- Department of Organic Chemistry, Center for Physical Sciences and Technology, A. Gostauto 9, Vilnius LT-01108, Lithuania.
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31
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Zhang J, Xia Y, Zhang L, Chen D, Jiao X. Effects of inorganic acids and divalent hydrated metal cations (Mg 2+, Ca 2+, Co 2+, Ni 2+) on γ-AlOOH sol–gel process. Phys Chem Chem Phys 2015; 17:27391-8. [DOI: 10.1039/c5cp03859f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In-depth understanding of the sol–gel process plays an essential role in guiding the preparation of new materials.
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Affiliation(s)
- Jian Zhang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Yuguo Xia
- National Engineering Research Center for Colloidal Materials
- Shandong University
- Jinan 250100
- P. R. China
| | - Li Zhang
- National Engineering Research Center for Colloidal Materials
- Shandong University
- Jinan 250100
- P. R. China
| | - Dairong Chen
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- National Engineering Research Center for Colloidal Materials
| | - Xiuling Jiao
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- National Engineering Research Center for Colloidal Materials
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32
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Abstract
Thermal insulation of a transparent gel containing silica can be attributed to the different thermal behavior of Residue (I), Residue (II) and Residue (III) from its intumescent residual layer at high temperature.
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Affiliation(s)
- Wei Liu
- Sichuan Fire Research Institute of Ministry of Public Security
- Chengdu 610036
- China
| | - Xinguo Ge
- Sichuan Fire Research Institute of Ministry of Public Security
- Chengdu 610036
- China
| | - Xiaoyong Zhou
- Sichuan Fire Research Institute of Ministry of Public Security
- Chengdu 610036
- China
| | - Yong Tang
- Sichuan Fire Research Institute of Ministry of Public Security
- Chengdu 610036
- China
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33
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Sanchéz-Lozano M, Mandado M, Pérez-Juste I, Hermida-Ramón JM. Theoretical vibrational Raman and surface-enhanced Raman scattering spectra of water interacting with silver clusters. Chemphyschem 2014; 15:4067-76. [PMID: 25263101 DOI: 10.1002/cphc.201402454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Indexed: 11/11/2022]
Abstract
In this study, we analyzed the Raman spectrum of a water molecule adsorbed on a cluster of 20 silver atoms, and the plasmonic electromagnetic effect of the silver surface was also considered to give a theoretical prediction of the surface-enhanced Raman scattering spectrum. The calculations were performed at the density functional theory (DFT) level by using both frozen and unfrozen silver clusters. Two different models were used to consider the plasmonic enhancement; one of them was a modified classical (dipole) model and the other was the coupled perturbed Hartree-Fock method with excitation frequencies obtained from time-dependent DFT calculations and with proper detuning of these frequencies. The importance of small geometrical distortions of the silver surface in the orientation of the adsorbed water was shown. Moreover, it was shown how the symmetry of the transition dipole moment and the symmetry of the vibrational modes influence the Raman intensities of the SERS spectrum.
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Affiliation(s)
- Marta Sanchéz-Lozano
- Departamento de Química Física, Facultade de Química, Universidade de Vigo, Campus Lagoas Marcosende s/n, 36310 Vigo (Spain)
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34
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Kang J, Lin CH, Yao Y, Chen YX. Kinetic Implication from Temperature Effect on Hydrogen Evolution Reaction at Ag Electrode. CHINESE J CHEM PHYS 2014. [DOI: 10.1063/1674-0068/27/01/63-68] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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35
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Pal R, Panigrahi S, Bhattacharyya D, Chakraborti AS. Characterization of citrate capped gold nanoparticle-quercetin complex: Experimental and quantum chemical approach. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.04.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Pang R, Yu LJ, Wu DY, Mao BW, Tian ZQ. Surface electron–hydronium ion-pair bound to silver and gold cathodes: A density functional theoretical study of photocatalytic hydrogen evolution reaction. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Lin XD, Li JF, Huang YF, Tian XD, Uzayisenga V, Li SB, Ren B, Tian ZQ. Shell-isolated nanoparticle-enhanced Raman spectroscopy: Nanoparticle synthesis, characterization and applications in electrochemistry. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.07.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Zeng J, Jean DI, Ji C, Zou S. In situ surface-enhanced Raman spectroscopic studies of nafion adsorption on Au and Pt electrodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:957-964. [PMID: 22103744 DOI: 10.1021/la2035455] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Understanding interactions between Nafion (perfluorosulfonic acid) and Pt catalysts is important for the development and deployment of proton exchange membrane fuel cells. However, study of such interactions is challenging and Nafion/Pt interfacial structure remains elusive. In this study, adsorption of Nafion ionomer on Au and Pt surfaces was investigated for the first time by in situ surface-enhanced Raman spectroscopy. The study is made possible by the use of uniform SiO(2)@Au core-shell particle arrays which provides very strong enhancement of Raman scattering. The high surface sensitivity offered by this approach yields insightful information on interfacial Nafion structure. Through spectral comparison of several model compounds, vibration assignments of SERS bands were made. The SER spectra suggest the direct interaction of sulfonate group with the metal surfaces, in accord with cyclic voltammetric results. Comparison of present SERS results with previous IR spectra was briefly made.
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Affiliation(s)
- Jianbo Zeng
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
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39
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Fang PP, Li JF, Lin XD, Anema JR, Wu DY, Ren B, Tian ZQ. A SERS study of thiocyanate adsorption on Au-core Pd-shell nanoparticle film electrodes. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2011.11.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Xu Y, Xu R, Cui J, Liu Y, Zhang B. One-step synthesis of three-dimensional Pd polyhedron networks with enhanced electrocatalytic performance. Chem Commun (Camb) 2012; 48:3881-3. [DOI: 10.1039/c2cc00154c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Chi C, Xie H, Li Y, Cong R, Zhou M, Tang Z. Photoelectron imaging of Ag(-)(H2O)x and AgOH(-)(H2O)y (x=1,2, y=0-4). J Phys Chem A 2011; 115:5380-6. [PMID: 21553859 DOI: 10.1021/jp202497x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The photoelectron images of Ag(-)(H(2)O)(x) (x=1,2) and AgOH(-)(H(2)O)(y) (y=0-4) are reported. The Ag(-)(H(2)O)(1,2) anionic complexes have similar characteristics to the other two coinage metal-water complexes that can be characterized as metal atomic anion solvated by water molecules with the electron mainly localized on the metal. The vibrationally well-resolved photoelectron spectrum allows the adiabatic detachment energy (ADE) and vertical detachment energy (VDE) of AgOH(-) to be determined as 1.18(2) and 1.24(2) eV, respectively. The AgOH(-) anion interacts more strongly with water molecules than the Ag(-) anion. The photoelectron spectra of Ag(-)(H(2)O)(x) and AgOH(-)(H(2)O)(y) show a gradual increase in ADE and VDE with increasing x and y due to the solvent stabilization.
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Affiliation(s)
- Chaoxian Chi
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China
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42
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Li D, Li DW, Fossey JS, Long YT. In situ surface-enhanced Raman scattering and X-ray photoelectron spectroscopic investigation of coenzyme Q10on silver electrode. Phys Chem Chem Phys 2011; 13:2259-65. [DOI: 10.1039/c0cp01449d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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