Article
Chemistry, Multidisciplinary
Shu Hu, Jingyu Wang, Yue-Jiao Zhang, Bao-Ying Wen, Si-Si Wu, Petar M. Radjenovic, Zhilin Yang, Bin Ren, Jian-Feng Li
Summary: In this study, the shell and structural effect of shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) were investigated. It was found that the field enhancement loss due to the shell could be overcome by optimizing the coupling geometry of the shell-isolated nanoparticles (SHINs), and signal enhancement could be further optimized by altering the aggregation geometries of the nanoparticles.
Review
Nanoscience & Nanotechnology
Andi Haryanto, Chan Woo Lee
Summary: This article introduces the application and development of shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) in electrochemical reactions. This technique can be used to experimentally unravel the reaction pathway and rate-limiting step, improving the efficiency and selectivity of electrocatalytic reactions.
Article
Multidisciplinary Sciences
Shalini Arya, Nachal Nachiappan, Roji Waghmare, Mohmad Sayeed Bhat
Summary: This article highlights the best practices for shell isolated nanoparticle enhanced Raman spectroscopy, focusing on factors that can impact the workflow.
NATURE REVIEWS METHODS PRIMERS
(2023)
Article
Chemistry, Multidisciplinary
Li Dong, Bin Liu, Shinya Maenosono, Jianhui Yang
Summary: Au@Ag@SiO2 core-shell-shell nanoparticles were synthesized using a simple one-pot technique, with the size of the Au@Ag core and the thickness of the SiO2 shell controlled by adjusting precursor concentration. The multilayered nanoparticles exhibited the chemical stability of Au and high scattering efficiency of Ag due to the SiO2 outer shell. Additionally, the SiO2 shell benefited the metal-enhanced fluorescence for biomedical applications. The metal-enhanced fluorescence, surface-enhanced Raman scattering, and photocatalytic activities of various core-shell nanoparticles were compared and discussed.
Article
Polymer Science
Elmira Alikhaidarova, Dmitriy Afanasyev, Niyazbek Ibrayev, Nurxat Nuraje
Summary: By adding Ag@SiO2 nanostructures to polymer solar cells, the efficiency of the cells can be increased and light scattering characteristics can be improved. This study revealed the mechanism of how the nanostructures affect electron transfer and light harvesting in the solar cells.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Spectroscopy
Qiaoling Yang, Xiaojun Deng, Bing Niu, Hong Lin, Jing Jing, Qin Chen
Summary: In this study, melamine was used as the research object, and the surface enhanced Raman spectrum of melamine in liquid milk was collected using a portable Raman spectrometer. Melamine was qualitatively identified and semi-quantitatively analyzed based on Raman characteristic peak and intensity, and a simple and efficient rapid screening method for limited contaminations was developed. The proposed method can meet the rapid screening requirements of limited contaminations at the maximum residue limit and has good application prospects.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Suyang Li, Junjie Chen, Wanbing Xu, Biao Sun, Jiechen Wu, Qiang Chen, Pei Liang
Summary: In this study, an efficient hybrid microfluidic chip was designed to prepare uniform Au@Ag core-shell nanoparticles, and DTNB was used as the internal standard tag molecule to prepare Au@DTNB@Ag for SERS detection. The experimental results showed that the homogeneous SERS substrate prepared using a microfluidic chip has potential for sensitive and reliable detection of environmental chemical contaminants.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Fabiane C. Ballotin, Thomas Hartman, Joris Koek, Robin G. Geitenbeek, Bert M. Weckhuysen
Summary: The study utilized operando SHINERS with on-line mass spectrometry to investigate the reaction mechanism and product formation over Rh-based catalysts, revealing the tunable selectivity under different reaction conditions and the absence of reaction products in the absence of Rh catalyst.
Article
Engineering, Environmental
Ye Hu, Zhongdong Gan, Shixian Xin, Wenhui Fang, Min Li, Yanlei Wang, Wei Cui, Hong Zhao, Zengxi Li, Xiangping Zhang
Summary: Ionic liquids (ILs) have advantages in improving the Faradaic efficiency (FE) and current density of electrochemical CO2 reduction (ECR). In this study, in situ shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) was used to investigate the ECR process on nickel foam (NF) in imidazolium ILs. The results showed that 1-Butyl-3-methylimidazolium chloride (BmimCl) exhibited the best performance with a high FE of CO (94.6%) and a considerable current density (72 mA cm-2). The study provided promising insights into the CO2 electroreduction mechanism in ILs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ying Wang, Yonglong Li, Zhao Zhang, Wei Xie
Summary: Plasmonic photocatalysis is a promising strategy for inducing chemical transformations under visible-light irradiation. However, efficient utilization of hot electrons on monometallic nanoparticles remains challenging. In this study, Au-core-Ag-shell bimetallic nanoparticles showed higher catalytic activity than pure Au and Ag nanoparticles for the reduction of 4-nitrothiophenol to 4,4'-dimercaptoazobenzene. The catalytic activity was dependent on the thickness of the Ag shell and could be explained by hot-electron-hole separation at the bimetallic interface. This work provides new opportunities for enhancing the efficient utilization of hot electrons in plasmonic photocatalysis reactions.
Article
Chemistry, Physical
Jia Li, Shen Wang, Mu-Fei Yue, Shu-Ming Xing, Yue-Jiao Zhang, Jin-Chao Dong, Hua Zhang, Zhuo Chen, Jian-Feng Li
Summary: The promotional role of graphene in oxygen reduction reaction (ORR) has been investigated using in situ enhanced Raman spectroscopy and graphene-isolated satellite nanostructures. The formation of *OOH and the conversion of *OH to water on PtFe catalysts with or without graphene support have been confirmed. Density functional theory calculations and X-ray photoelectron spectroscopy demonstrate the difference in electrochemical behaviors due to the electronic effect of graphene. This study provides insights into the molecular mechanism of the promotional role of graphene in ORR and offers theoretical guidance for the design of ORR catalysts.
Article
Chemistry, Analytical
Ruipeng Chen, Yunfeng Sun, Bingyang Huo, Zefeng Mao, Xiaojuan Wang, Shiyu Li, Ran Lu, Shuang Li, Jun Liang, Zhixian Gao
Summary: A universal surface-enhanced Raman scattering (SERS) aptasensor was developed for the detection of Zearalenone (ZEN) with a linear detection range from 0.005 to 500 ng mL(-1) and a detection limit of 0.001 ng mL(-1). The sensor showed excellent performance for analytical applications with real-world samples.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Yue-Jiao Zhang, Petar M. Radjenovic, Xiao-Shun Zhou, Hua Zhang, Jian-Lin Yao, Jian-Feng Li
Summary: Plasmonic core-shell nanostructures have highly tunable optical properties, and when excited by an incident laser, generate strong and highly localized electromagnetic fields that significantly enhance excitation and/or radiation processes to amplify signals and improve spectroscopic sensitivity.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jaime Gonzalez Cuadra, Loredana Scalschi, Begonya Vicedo, Maxim Guc, Victor Izquierdo-Roca, Samuel Porcar, Diego Fraga, Juan B. Carda
Summary: In this study, ZnO/Ag nanocomposites were successfully synthesized using a facile chemical route, and their structural and morphological properties were characterized. It was found that the introduction of silver nanoparticles into the nanocomposites significantly reduced the size of ZnO particles. In addition, spectroscopic analysis revealed an increased absorption in the visible range for the nanocomposites. Antimicrobial activity testing demonstrated that ZnO exhibited bactericidal power against both Staphylococcus aureus and Escherichia coli, and this effect was further enhanced when used in conjunction with silver nanoparticles.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Electrical & Electronic
H. K. Lin, I. C. Chen, W. H. Lu, J. Y. Cheng, J. J. Wang
Summary: Pure Ag nanoparticles were synthesized and modified with hafnium oxide using laser dewetting and sputtering processes. The modified Ag NPs exhibited favorable optical properties and melamine detection performance, indicating their potential in melamine detection.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Electrochemistry
Lei Jin, Zhi-Hao Liang, Jia-Qiang Yang, An-Ni Zheng, Zhao-Yun Wang, Fang-Zu Yang, De-Yin Wu, Zhong-Qun Tian, Dongping Zhan
Summary: 5,5-Dimethylhydantoin (DMH), a heterocyclic compound, exhibits excellent complexation ability towards trivalent gold ions. The tautomeric structures of DMH in different pH solutions were investigated using theoretical calculations and Raman spectra. Results revealed that the ketonic form of DMH exists in weakly acidic and neutral solutions, while the enolic form is predominant in highly alkaline solutions. In a weakly alkaline medium (pH 9), a mixture of ketonic and enolic forms of DMH is observed. The coordination behavior between DMH and Au(III) in pH 9 medium was elucidated, with the N2-Au coordination structure being most stable.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Electrical & Electronic
Xiaobo Ma, Shengnan Zhang, Jianqing Feng, Chengshan Li, Botao Shao, Jianfeng Li
Summary: Mono-filament Bi-2223/Ag and Bi-2223/AgAu tapes were fabricated using the power-in tube technique. The formation temperature and content of Bi-2223 phase in the tapes were analyzed. The growth process of Bi-2223 grains during the sintering process was quantitatively studied, and it was found that the growth rate in the length direction was higher than in the thickness direction. The results provided important insights for understanding the growth of Bi-2223 phase and improving the current-carrying property of the tapes.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Sheng Lin, Jun-Bo Ma, Jiang-Jian Fu, Lan Sun, Hua Zhang, Jun Cheng, Jian-Feng Li
Summary: Photoelectrochemical nitrogen fixation technology offers a mild approach to produce ammonia, but the effectiveness is limited by the strength of N2 bond and its ionic potential. In this study, a Vo-TiO2/Ag/TiO2 photoelectrode was designed and demonstrated to enhance the PEC reduction of N2 into ammonia. The combination of TiO2 nanorods, Ag nanoparticles, and Vo-TiO2 nanosheets facilitated the separation of photogenerated carriers and enabled the injection of electrons into the conduction band of Vo-TiO2. The catalyst achieved a high NH3 production rate of 51.2 μg h-1 cm-2 and exhibited excellent stability. The LSPR effect and heterojunction structure contributed to the improved PEC performance of TiO2 nanorod arrays.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Si-Yuan Guan, Zhuan-Yun Cai, Zi-Wei Ma, De-Yin Wu, Zhong-Qun Tian
Summary: This study investigates the Au-n-octanedithiol-Au molecular junction (Au-SC8S-Au) using density functional theory combined with the nonequilibrium Green's function approach. The relationship between the binding structures at the interface and the single-molecule quantum conductance of n-octanedithiol (SC8S) in a gold nanogap is established through theoretical calculations. Different models of Au-SC8S-Au nanogaps are designed to understand the electron transport mechanism in single molecular nanojunctions. The calculated results show variations in conductance and bond fractures depending on the specific model and bond strength.
Article
Biochemical Research Methods
Yao-Hui Wang, Shunning Li, Ru-Yu Zhou, Shisheng Zheng, Yue-Jiao Zhang, Jin-Chao Dong, Zhi-Lin Yang, Feng Pan, Zhong-Qun Tian, Jian-Feng Li
Summary: In this study, a protocol combining in situ Raman spectroscopy and ab initio molecular dynamics (AIMD) simulations is proposed to unravel the directional molecular features of interfacial water. The procedures for preparing single-crystal electrodes, constructing a Raman enhancement mode with shell-isolated nanoparticles, and eliminating perturbations during in situ electrochemical Raman experiments are presented. The combination of spectroscopic measurements and AIMD simulation results provides a roadmap for deciphering the potential-dependent molecular orientation of water at the interface.
Article
Chemistry, Physical
Xin-Tao Yang, Ting-Yi Huang, Yao-Hui Wang, Jin-Chao Dong, Qiu-Long Wei, Hua Zhang, Xiu-Mei Lin, Jian-Feng Li
Summary: By manipulating the particle sizes of the inner TMO core and the features of outer carbon coating, the Na+ storage performance of TMOs can be significantly improved.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Xia-Guang Zhang, Yu Zhao, Si Chen, Shu-Ming Xing, Jin-Chao Dong, Jian-Feng Li
Summary: In this study, theoretical calculations were used to investigate the reaction mechanism of CO2 reduction to CO with different electrolytes on the Cu(111) surface. It was found that the charge transfer is from the metal electrode to CO2, and the hydrogen bond interaction between the electrolytes and CO2 plays a crucial role in stabilizing the CO2 structure and reducing the formation energy of *COOH. Additionally, the characteristic vibration frequency of intermediates in different electrolyte solutions indicates that H2O is a component of HCO3-, promoting CO2 adsorption and reduction. These results provide essential insights into the role of electrolyte solutions in interface electrochemistry reactions and the catalysis process at the molecular level.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Han-Liang Zhong, Huajie Ze, Xia-Guang Zhang, Hua Zhang, Jin-Chao Dong, Tao Shen, Yue-Jiao Zhang, Jian-Jun Sun, Jian-Feng Li
Summary: The surface/interface electronic structure of metal catalysts plays a decisive role in electrocatalytic reactions. In this study, the reaction processes and intermediates of oxygen reduction reaction (ORR) on PtCoSn ternary nanoalloys were explored using surface-enhanced Raman spectroscopy (SERS). The SERS evidence showed that alloying with Co and Sn can tailor the electronic structure of Pt, leading to a weaker energy state of *OOH configuration on the surface.
Article
Chemistry, Physical
Di-Ye Wei, a Guan-Nan Xing, a Heng-Quan Chen, Xiao-Qun Xie, Hui-Mei Huang, Jin-Chao Dong, Jing-Hua Tian, Hua Zhang, Jian-Feng Li
Summary: Under alkaline conditions, Au@Pd core-shell nanowires demonstrate outstanding electrocatalytic performance, with significantly higher mass activity and stability compared to commercial Pd/C.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Editorial Material
Chemistry, Physical
Anastassia N. Alexandrova, Julie S. Biteen, Sonia Coriani, Franz M. Geiger, Andrew A. Gewirth, Gillian R. Goward, Hua Guo, Libai Huang, Jian-Feng Li, Tim Liedl, Stephan Link, Zhi-Pan Liu, Sudipta Maiti, Andrew J. Orr-Ewing, David L. Osborn, Jim Pfaendtner, Benoit Roux, Friederike Schmid, J. R. Schmidt, William F. Schneider, Lyudmila V. Slipchenko, Gemma C. Solomon, Jeroen A. van Bokhoven, Veronique Van Speybroeck, Shen Ye, T. Daniel Crawford, Martin T. Zanni, Gregory V. Hartland, Joan-Emma Shea
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ruiyuan Zhang, Jingdan Zhang, Hongjun You, Muhammad Usman Amin, Jian-Feng Li, Jixiang Fang
Summary: Researchers developed a nano-driven and confined catalysis strategy using Au nano-bipyramids as catalysts for plasmon-enhanced catalytic reactions. By utilizing an electric field, reactant molecules were driven into hot spots and confined at catalytic active sites. This strategy resulted in significantly higher rate constants for catalytic reduction reactions compared to references.
Article
Multidisciplinary Sciences
Yue-Jiao Zhang, Huajie Ze, Ping-Ping Fang, Yi-Fan Huang, Andrzej Kudelski, Julia Fernandez-Vidal, Laurence J. Hardwick, Jacek Lipkowski, Zhong-Qun Tian, Jian-Feng Li
Summary: Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive technique for non-destructive detection at the single-molecule level. Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) overcomes the limitations of traditional SERS substrates and morphology, expanding the applications of SERS. This Primer provides an introduction to the origin and enhancement mechanism of SHINERS, and describes the experimental details, including the types and characterization of shell-isolated nanoparticles, experimental instruments, reproducibility, and data analysis. It also highlights recent advances and discusses the limitations and potential optimizations of SHINERS.
NATURE REVIEWS METHODS PRIMERS
(2023)
Article
Chemistry, Multidisciplinary
Jun-Rong Zheng, En-Ming You, Yuan-Fei Hu, Jun Yi, Zhong-Qun Tian
Summary: Hot carriers injected into semiconductor enable below-bandgap photodetection, and the performance of hot carrier-based devices is related to the absorptivity of metal. Strategies such as surface plasmons, metamaterials, and optical cavities are used to enhance metal absorption, but narrow resonance bandwidth limits detection range. In this study, a purely planar hot-hole photodetector based on ultrathin gold film, an impedance-matched absorber, is designed. The device achieves high photoresponsivity and wide detection range, setting a new record for hot carrier photodetectors.
Article
Chemistry, Multidisciplinary
Hui Yu, Zhilan Yang, Shiying Fu, Yuejiao Zhang, Rajapandiyan Panneerselvamc, Baoqiang Li, Lin Zhang, Zehui Chen, Xin Wang, Jianfeng Li
Summary: Based on label-free SERS technology, the relationship between Raman signals of pathogenic Vibrio microorganisms and purine metabolites was analyzed. A deep learning CNN model was developed, achieving 99.7% accuracy in identifying six typical pathogenic Vibrio species within 15 minutes, providing a novel method for pathogen identification.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Xu Jing, Zheng Hong, Xie Li-Fang, Lin Wei-Qi, Gao Jing, Xie Ze-Zhong, Chen Hong-Ju, Zeng Yong-Ming, Liu Guo-Kun, Tian Zhong-Qun
Summary: With the increasing public concern on food quality, the qualitative and quantitative analysis of trace banned substances in food is prospering in the field of food safety. A rapid and sensitive detection strategy for trace antibiotics in livestock was developed using surface-enhanced Raman spectroscopy. The proposed SERS-based strategy showed accurate qualification and reliable quantitation compared to standard HPLC-MS/MS technique, providing a practical method for rapid detection of other similar substances in real samples.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
