Article
Chemistry, Multidisciplinary
Nikiwe Mhlanga, Thabang A. Ntho, Hleko Chauke, Lucky Sikhwivhilu
Summary: Surface-enhanced Raman spectroscopy (SERS) is a technique that enhances conventional Raman signals using surfaces, with potential applications in disease diagnosis and pollutant detection. However, the roughness of SERS substrates has led to irreproducibility issues, limiting real-life applications. Graphene-enhanced Raman spectroscopy (GERS), a two-dimensional alternative, has been proposed to mitigate this problem. Combining SERS and GERS, using graphene doped with plasmonic metallic substrates, has shown significant enhancement, matching the results achieved through electromagnetic and charge transfer mechanisms.
FRONTIERS IN CHEMISTRY
(2022)
Review
Chemistry, Inorganic & Nuclear
Ying Gu, Yonghui Li, Huimin Qiu, Yukun Yang, Qiyue Wu, Xuejing Fan, Yangyue Ding, Lunzhao Yi, Kun Ge, Yizhong Shen
Summary: This review comprehensively examines recent advances in noble-free SERS substrates, including their main categories, fabrication strategies, basic enhancement mechanisms, SERS performance, and representative applications. The challenges and potential avenues for future research and development are also discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Ilya A. Milekhin, Alexander G. Milekhin, Dietrich R. T. Zahn
Summary: This study presents the optical response of spherical CdSe nanocrystals using SERS and TERS techniques, achieving significant enhancement of optical phonons by selecting appropriate plasmonic substrates. Combining Raman scattering with atomic force microscopy offers nanoscale spatial resolution for investigating phonon properties. Gap-mode TERS further enhances Raman scattering of CdSe NCs' optical phonon modes with nanometer spatial resolution, providing new pathways for optical characterization and phonon spectrum details at the nanometer scale of single semiconductor nanostructures.
Review
Chemistry, Analytical
Ying Chen, Yuling Hu, Gongke Li
Summary: This article summarizes the research progress of non-noble metal SERS substrates in analytical applications. The enhancement mechanism of non-noble metal substrates is introduced, and several main types of materials, including carbon nanomaterials, transition metal dichalcogenides, metal oxides, metal-organic frameworks, transition metal carbides and nitrides, and conjugated polymers, are discussed. The analytical applications of these substrates in pollutant and biomarker detection are emphasized, and the challenges and research prospects in practical application are proposed.
Review
Optics
Huaping Jia, Chi Chung Tsoi, Abdel El Abed, Weixing Yu, Aoqun Jian, Shengbo Sang, Xuming Zhang
Summary: Plasmon-enhanced photocatalysis is a promising technology for solar-to-chemical energy conversion. By controlling the morphology, composition, size, spacing, and dispersion of nanostructures, plasmonic nanostructure arrays enhance light-harvesting capability, charge transfer, electromagnetic fields, and contact interfaces. This study provides an overview of plasmonic nanostructure arrays and their applications in solar-driven chemical conversion, offering guidance for integrating plasmonic nanostructures in functional devices in various fields.
LASER & PHOTONICS REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Jan Krajczewski, Robert Ambroziak, Andrzej Kudelski
Summary: Surface-Enhanced Raman Scattering (SERS) refers to the phenomenon where the efficiency of generating Raman spectra by molecules adsorbed on some substrates is many orders of magnitude larger than those that are not adsorbed. Significant advances have been made in utilizing nanostructured non-metallic materials as SERS substrates, showing great potential for future applications.
Review
Chemistry, Analytical
Jin-yuan Li, Jian Zhu, Guo-jun Weng, Jian-jun Li, Jun-wu Zhao
Summary: The combination of colorimetric method, fluorescence spectrum, and SERS detection can improve the detection efficiency and sensitivity of multiple samples, thus enhancing selectivity and reliability, providing a new research direction for researchers.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Physical
Jinghua Li, Yiming Zhang, Yalong Huang, Bing Luo, Li Jing, Dengwei Jing
Summary: Plasmonic nanomaterial catalysis is a frontier research area in photocatalysis, offering a solution to the limitations of wide bandgap semiconductors. This paper reviews the principles, classification, and recent applications of noble-metal free plasmonic nanomaterials in photocatalytic reactions, including hydrogen generation, carbon dioxide reduction, and pollutant degradation. It also discusses the challenges and future opportunities for the development of noble-metal free plasmonic nanomaterials in energy conversion and storage.
Article
Chemistry, Physical
Hanna J. Koster, Tatu Rojalin, Randy P. Carney, Hannah J. O'Toole, Kwan Lun Chiu
Summary: Surface enhanced Raman scattering (SERS) is a powerful tool for vibrational spectroscopy that enhances chemical sensitivity by several orders of magnitude compared to spontaneous Raman scattering. However, synthesizing robust and uniform SERS substrates quickly and easily remains a challenge.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jingbin Li, Wencai Yi, Meng Yin, Haifeng Yang, Junfang Li, Yahui Li, Zhiwei Jiao, Hua Bai, Mingqiang Zou, Guangcheng Xi
Summary: In this study, ultrathin multilayer rhenium (Re) nanosheets were found to exhibit extraordinary surface enhanced Raman scattering (SERS) performance as a rare-earth metal substrate. These Re nanosheets, prepared through a low-temperature molten salt strategy, showed high sensitivity, chemical stability, and signal repeatability. The composite enhancement mechanism caused by localized surface plasmon resonance (SPR) and charge transport played an important role in the rare-earth-SERS system. Furthermore, the Re nanosheets were capable of high-throughput multiassay analysis, allowing rapid separation and identification of various analytes.
Article
Chemistry, Physical
Mariia Ivanchenko, Vida Nooshnab, Alline F. Myers, Nicolas Large, Andrew J. Evangelista, Hao Jing
Summary: Researchers prepared colloidal monodisperse eccentric dual plasmonic noble metal-nonstoichiometric copper chalcogenide (Au@Cu2-xSe) hybrid hetero-nanostructures with controllable semiconductor shell size and two tunable localized surface plasmon resonances (LSPRs). The experimental and computational results demonstrated the superior catalytic activity and higher rate constants of Au@Cu2-xSe in photocatalysis, attributed to the enhanced electromagnetic field strength arising from efficient plasmonic coupling under the excitation of two LSPRs.
Article
Chemistry, Multidisciplinary
Xi Yang, Dong Su, Xie Yu, Pei Zeng, Huageng Liang, Guangzu Zhang, Boxiang Song, Shenglin Jiang
Summary: The controllable nanogap structures enable strong and adjustable localized surface plasmon resonance (LSPR). A novel hierarchical plasmonic nanostructure (HPN) is created using colloidal lithography with a rotating coordinate system. The HPN increases the density of hot spots and enhances LSPR tunability and field enhancement. The hot spot engineering strategy of HPNs is demonstrated in surface-enhanced Raman spectroscopy (SERS) applications and allows single-molecule level detection and long-range mapping, providing a platform and guidance for various LSPR applications.
Article
Chemistry, Analytical
Andra-Sorina Tatar, Sanda Boca, Alexandra Falamas, Denisa Cuibus, Cosmin Farcau
Summary: In this study, high-density gold nanostar films were fabricated through self-assembly on polystyrene plates, and their use as solid plasmonic substrates for surface-enhanced optical spectroscopies was explored. The films demonstrated dual-mode surface-enhanced fluorescence and surface-enhanced Raman scattering effects under visible and NIR laser excitation. The experimental results were supported by theoretical modelling, and the potential application of these substrates in the detection of biologically relevant molecules was demonstrated.
Article
Chemistry, Physical
Shota Takahashi, Atsunori Sakurai, Tatsuto Mochizuki, Toshiki Sugimoto
Summary: In this study, we achieved significant enhancement of the nonlinear optical response in a tip-substrate plasmonic nanocavity. By focusing on the near-field second harmonics of a wavelength-tunable femtosecond laser, we demonstrated that the enhancement of nonlinear optical effects occurs over a broad wavelength range from visible to infrared. We also discovered that the sharpness of the tip apexes and the surface geometry of the tip shafts both affect the broadband nonlinear optical property.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Physical
Karuppasamy Kohila Rani, Rajkumar Devasenathipathy, Jia-Zheng Wang, Xiao-Yuan Hui, Jian-De Lin, Yi-Miao Zhang, Liu-Bin Zhao, Jian-Zhang Zhou, De-Yin Wu, Zhong-Qun Tian
Summary: In this review, we discuss the latest progress on plasmon-mediated chemical reactions of organic molecules such as para-aminothiophenol, substituted para-aminothiophenol and para-nitrothiophenol at nanostructures modified noble metal electrodes using surface enhanced Raman spectroscopy, electrochemical methods, and theoretical calculations.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Chen Zhu, Jing-Pei Cao, Zhen Yang, Xiao-Yan Zhao, Wen-Cai Yi, Xiao-Bo Feng, Yun-Peng Zhao, Hong-Cun Bai
Summary: By using computational techniques, the hydrodeoxygenation mechanism of anisole on Ni surface was investigated. The results showed that phenol was the major product on clean Ni surface, while methylcyclohexane was the main product on H-covered Ni surface. These findings provide mechanistic understanding for the conversion of anisole under different experimental conditions.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Jingbin Li, Wencai Yi, Meng Yin, Haifeng Yang, Junfang Li, Yahui Li, Zhiwei Jiao, Hua Bai, Mingqiang Zou, Guangcheng Xi
Summary: In this study, ultrathin multilayer rhenium (Re) nanosheets were found to exhibit extraordinary surface enhanced Raman scattering (SERS) performance as a rare-earth metal substrate. These Re nanosheets, prepared through a low-temperature molten salt strategy, showed high sensitivity, chemical stability, and signal repeatability. The composite enhancement mechanism caused by localized surface plasmon resonance (SPR) and charge transport played an important role in the rare-earth-SERS system. Furthermore, the Re nanosheets were capable of high-throughput multiassay analysis, allowing rapid separation and identification of various analytes.
Article
Chemistry, Physical
Xingang Jiang, Tao Yang, Ge Fei, Wencai Yi, Xiaobing Liu
Summary: Researchers have reported a new type of two-dimensional graphene material with good stability and high Fermi velocities. Some of the monolayers exhibit a pristine n-type self-doping Dirac cone structure, while the ClPSi3 monolayer is found to be potential excellent strain sensor.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Xinyong Cai, Wencai Yi, Jiao Chen, Linguo Lu, Bai Sun, Yuxiang Ni, Simon A. T. Redfern, Hongyan Wang, Zhongfang Chen, Yuanzheng Chen
Summary: By using structure design and simulation, researchers have discovered a new carbon nitride framework with high porosity and N content, which exhibits extremely high theoretical capacity and feasibility for experimental realization in lithium-ion batteries. Furthermore, the study found that this carbon nitride framework can be further expanded and constructed to maintain high Li storage capacity.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Nanoscience & Nanotechnology
Xingang Jiang, Guanghui Zhang, Wencai Yi, Tao Yang, Xiaobing Liu
Summary: This study demonstrates that the penta-BeP2 monolayer is an excellent sensor for toxic gases, showing high selectivity, sensitivity, and reversibility.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Damin Liu, Wencai Yi, Yanling Fu, Qinghong Kong, Guangcheng Xi
Summary: This study presents a mild and general in situ surface restraint-induced growth method for the preparation of highly crystalline tungsten nitride nanocrystals with excellent dispersibility, forming a hybrid structure in ultrathin carbon layers. These hybrid nanobelts exhibit strong localized surface plasmon resonance and surface-enhanced Raman scattering effects, with outstanding corrosion resistance, radiation resistance, and oxidation resistance, maintaining SERS performance in harsh environments. The synergistic Raman enhancement mechanism of LSPR and interface charge transfer is found in the carbon coated tungsten nitride substrate, enabling high-throughput dynamic SERS analysis in a microfluidic SERS channel.
Article
Chemistry, Analytical
Jingbin Li, Junfang Li, Wencai Yi, Meng Yin, Yanling Fu, Guangcheng Xi
Summary: This paper reports the surface-enhanced Raman spectroscopy performance of metallic niobium nitride three-dimensional hierarchical network structures. The unique nanocavity structure promotes the entry of molecules and takes advantage of electromagnetic hot spots, and the substrate exhibits outstanding environmental durability, high signal reproducibility, and detection universality.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Lu Zhang, Junfang Li, Wencai Yi, Guoying Wei, Meng Yin, Guangcheng Xi
Summary: Controlling the structure of graphdiyne (GDY) is important for exploring new properties and applications. This study presents the microemulsion synthesis of GDY hollow spheres and multiwalled nanotubes composed of ultrathin nanosheets for the first time. The formation of an oil-in-water microemulsion is found to be the key factor in controlling GDY growth. The resulting GDY hollow spheres have fully exposed surfaces, exhibiting an ultrahigh specific surface area of 1246 m2 g-1 and potential applications in water purification and Raman sensing.
Article
Physics, Multidisciplinary
Yuanyuan Wang, Zhihui Li, Shifeng Niu, Wencai Yi, Shuang Liu, Zhen Yao, Bingbing Liu
Summary: In this study, Ce-N compounds were systematically explored using first-principles calculations. It was found that the cerium atom can weaken the strength of the N=N bond and various cerium polynitrides can be formed under moderate pressure. Among them, P1-CeN6 has the lowest synthesis pressure (32 GPa) and exhibits high hardness and large volumetric energy density, indicating good structural stability and high energy density characteristics.
MATTER AND RADIATION AT EXTREMES
(2023)
Article
Nanoscience & Nanotechnology
Haiying Du, Zhaorui Zhang, Xingang Jiang, Jing Wang, Wencai Yi, Xiaogan Li, Jinkui Chu
Summary: A new technique of polarization doping was used to improve the NO2 gas sensing performance of the polypyrrole sensor. The introduction of sodium dodecyl benzenesulfonate enhanced the dispersion and specific surface area of the PPy nanosheets. The resulting PPy sensor showed excellent NO2 sensing properties due to the enhanced adsorption ability and electron transfer caused by polarization doping.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Lu Zhang, Wencai Yi, Junfang Li, Guoying Wei, Guangcheng Xi, Lanqun Mao
Summary: In this study, a surfactant-free growth method was developed to efficiently synthesize graphdiyne hollow microspheres with a self-supporting structure. Pristine graphdiyne hollow microspheres were found to exhibit a strong surface-enhanced Raman scattering effect without any additional functionalization, which can be attributed to efficient interfacial charge transfer within the graphdiyne-molecule system.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shuai Han, Yunxian Liu, Chao Wang, Wencai Yi, Xin Chen, Yongsheng Zhang, Xiaobing Liu
Summary: Elemental boron has attracted considerable interest due to its electron deficiency, which allows for the formation of multicenter bonds and various stable and metastable allotropes. Through first-principles calculations and structure search, boron-rich K-B binary compounds have been investigated, leading to the prediction of dynamically stable structures containing boron framework with open channels. Furthermore, four novel boron allotropes were discovered to possess dynamical, thermal, and mechanical stability at ambient pressure, with o-B-14 exhibiting an unusual bonding combination and potential superconductivity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Wenjuan Li, Yipin Zhang, Yuhua Wang, Weiguang Ran, Qinhui Guan, Wencai Yi, Lulu Zhang, Dapeng Zhang, Na Li, Tingjiang Yan
Summary: In this study, graphdiyne (GDY) was introduced for the first time into the gaseous photocatalytic CO2 hydrogenation system, and a GDY-modified In2O3 nanocomposite (GDY-IO) was fabricated. GDY-IO showed improved performance in CO2 hydrogenation, resulting in higher yields of C1 (CO and CH4) and formation of C2+ hydrocarbons (C2H4, C2H6, C3H6, and C3H8). The introduction of GDY promoted electron transport and suppressed carrier recombination, leading to enhanced CO2 hydrogenation reaction. The GDY-IO interface stabilized key intermediates and reduced the kinetics barrier, facilitating thermodynamically favorable exothermal processes. This research opens up a new avenue for the synthesis of high value-added chemical fuels from greenhouse gases.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Materials Science, Multidisciplinary
Taowen Dong, Wencai Yi, Ting Deng, Tingting Qin, Xianyu Chu, He Yang, Lirong Zheng, Seung Jo Yoo, Jin-Gyu Kim, Zizhun Wang, Yan Wang, Wei Zhang, Weitao Zheng
Summary: This study investigates the conversion reaction mechanism of α-Fe2O3 and reveals the impact of diffusional and diffusionless transformation on electrochemical performance, as well as a method to achieve pseudocapacitance through diffusionless transformation.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Lei Zhao, Shijie Liu, Yuanzheng Chen, Wencai Yi, Darlar Khodagholian, Fenglong Gu, Eric Kelson, Yonghao Zheng, Bingbing Liu, Mao-sheng Miao
Summary: All-nitrogen solids have great potential as high-energy-density materials, but currently can only be obtained through high-pressure synthesis. Molecular crystals, compared to covalent solids, have higher stability during decompression. This study demonstrates that the design of a novel N-16 molecule and its crystal structure can lead to the formation of an all-nitrogen molecular crystal with favorable properties.
DALTON TRANSACTIONS
(2022)
