Article
Chemistry, Multidisciplinary
Bowen He, Xi Liu, Liwei Chen
Summary: By using advanced transmission electron microscope techniques, two alternative particle attachment growth pathways dominating the growth of Au@Ag core-shell nanocuboids are directly observed. One pathway involves the in situ reduction of AgCl nanoparticles attached to Au nanorods and the subsequent epitaxial growth of the Ag shell. The other pathway involves the adherence of Ag-AgCl Janus nanoparticles to Au nanorods with random orientations, followed by nanoparticle redispersion and the resulting formation of epitaxial Ag shells on the Au nanorods. The particle-mediated growth of Ag shells is accompanied by the redispersion of surface atoms, tending to form a uniform structure, providing a new mechanistic understanding of core-shell nanostructure synthesis.
Review
Chemistry, Multidisciplinary
Miao Yan, Kang Liang, Dongyuan Zhao, Biao Kong
Summary: The integration of well-designed micro-nanomotors with diverse functional systems offers opportunities for diverse functionalization interfaces and augmented or new properties in a wide variety of applications. Core-shell structured MNM systems play an important role in applications, providing improved propulsion performance, stability, non-toxicity, multi-functionality, and dispersibility, with the potential for enhanced or new physiochemical properties through hetero-interfaces within the structure.
Review
Chemistry, Applied
Wei Wang, Lei He, Qunxing Luo, Linyang Wang, Jing Wang, Huiyong Chen, Zongcheng Miao, Qiuxiang Yao, Ming Sun
Summary: Research on the synthesis of zeolite molecular sieves focuses on manipulating their properties by adjusting particle size, composition, and morphology. The core and shell concept particles, which integrate multiple functions into a single shape, have been extensively studied. This article presents novel design strategies for zeolite-related core and shell concept particles and their application in conventional thermal catalysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Ali Shafiee, Navid Rabiee, Sepideh Ahmadi, Marzieh Baneshi, Mehrdad Khatami, Siavash Iravani, Rajender S. Varma
Summary: Hybrid nanostructures and core-shell nanostructures possess unique physicochemical properties, making them suitable for various applications such as organic pollutant degradation and energy storage. Various techniques can be used to synthesize core-shell nanostructures, which offer high stability and reproducibility.
ACS APPLIED NANO MATERIALS
(2022)
Article
Food Science & Technology
Wenbo Zhu, Lingyan Zhao, Jingyi Jin, Yang Song
Summary: By utilizing the fluorescence immunoassay method with nanoparticles, the insecticides IMI and CLO can be simultaneously detected with high sensitivity. The method has low detection limits and a good linear range, and shows good applicability in fruits and vegetables, correlating well with the results from high-performance liquid chromatography analysis of actual samples.
Article
Chemistry, Multidisciplinary
Okten Ungor, Eun Sang Choi, Michael Shatruk
Summary: The study investigates the properties of materials formed by co-crystallization of complexes containing Fe(ii) ions with TCNQ radical anions, including semiconducting behavior, spin transition, and temperature-induced excited spin-state trapping effect. Furthermore, a series of semiconducting complexes exhibiting LS behavior are obtained by using different ligands to improve the structural stability of these complexes.
Article
Chemistry, Physical
Jingjing Guo, Huiyan Zhao, Jing Wang, Ying Liu
Summary: A stable core-shell B12@Ca20C12 cluster with Ih symmetry, featuring a icosahedral Ih-B12 core surrounded by a dodecahedral Ca20C12 shell, has been discovered. This cluster shows excellent stability, with no destruction at high frequencies, and has the ability to store a large amount of hydrogen, making it a potential high-capacity hydrogen storage material.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Kai Yu, Huagui Zhang, Zhentao Wang, Wei Zhang, Haojie Xu, Yanyan Chen, Hongshen Li, Bin Li, Junfeng Wang
Summary: This study investigated the relationship between the shell-to-core ratio (k) and modulating interactions of core-shell composite particles (CPs) at the air-aqueous interface. CPs were prepared by physically adsorbing poly(vinylpyrrolidone) (PVP) onto the surface of silica nanoparticles (NPs). The results showed that the k value increased with higher PVP adsorption density and molecular weight. Thicker PVP shells induced a stronger steric barrier, leading to more complex and non-hexagonal phases in the microstructure of the CPs-laden interface. The enhanced steric repulsion between the polymer shells played a significant role in building up surface pressure and facilitating CPs rearrangement under compression and shear.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Manav R. Kar, Smaranika Ray, Biplab K. Patra, Saikat Bhaumik
Summary: Metal halide perovskite nanocrystals have unique photophysical properties that make them suitable for a wide range of applications, but their instability in ambient atmosphere is a major challenge. Core@shell semiconducting nanostructures can enhance stability and improve optical properties, offering advantages in optoelectronic and bioimaging applications. The synthesis of core@shell nanocrystals faces challenges, but holds potential for further development in various fields.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Benjamin F. P. McVey, Robert A. Swain, Delphine Lagarde, Wilfried-Solo Ojo, Kaltoum Bakkouche, Cecile Marcelot, Benedicte Warot, Yann Tison, Herve Martinez, Bruno Chaudret, Celine Nayral, Fabien Delpech
Summary: II-V semiconductor nanocrystals such as Cd3P2 and Zn3P2 have great potential in next-generation optoelectronic devices. However, their instability with respect to air and moisture poses challenges. The synthesis and study of the Cd3P2/Zn3P2 core-shell system reveal improvements in terms of structure, chemistry, and optical properties, with crystallographic concerns playing a key role.
Article
Engineering, Multidisciplinary
Zheng Liu, Mingsong Chen, Yecheng Xu, Jieyu Zhang, Xinxin Huang, Jing Luo, Jianzhang Li, Sheldon Q. Shi, Qiang Gao
Summary: The addition of core-shell structure HBPA@TA in soybean flour adhesive can significantly improve its performance, including prepressing performance, mildew resistance, antibacterial properties, flame retardancy, etc., making it more suitable for plywood fabrication.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Fariba Malekpour Galogahi, Hongjie An, Yong Zhu, Nam-Trung Nguyen
Summary: This study investigates the behavior of core-shell microparticles with a liquid core under thermal and mechanical loads, establishing analytical models and conducting experiments to validate them. The results demonstrate that the maximum temperature and critical compression force before rupture of core-shell microparticles depend on the liquid, geometry, and material of the shell.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Lin-Lin Lu, Qin Zhang, Yu Gu, Xiang-Ling Li, Jing Jing Xie
Summary: A novel type of core-shell loading-type nanomaterials with excellent biocompatibility, high loading capacity, efficient delivery, dual target recognition and response has been fabricated for simultaneous imaging analysis of glutathione and microRNAs in living cells.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Jingjie Ge, Riccardo Ruixi Chen, Xiao Ren, Jiawei Liu, Samuel Jun Hoong Ong, Zhichuan J. Xu
Summary: The rational design of FM-AFM core-shell catalysts enhances electron transport efficiency and improves OER activity, with critical factors including shell thickness and magnetic domain structure.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Suchandra Goswami, Pushpendra Gupta, Sagarika Nayak, Subhankar Bedanta, Oscar Iglesias, Manashi Chakraborty, Debajyoti De
Summary: This study reports the method of controlling the exchange bias effect by manipulating the interparticle interactions in nanocrystalline core/shell structures. The results indicate that the interparticle interactions have a significant impact on the magnetic properties, with a more pronounced collective behavior observed in concentrated assemblies. This finding contributes to a better understanding of the magnetic behavior in nanoparticle systems.
Article
Chemistry, Physical
Naixin Kang, Xiaorong Wei, Ruofan Shen, Baojun Li, Eduardo Guisasola Cal, Sergio Moya, Lionel Salmon, Changlong Wang, Emerson Coy, Murielle Berlande, Jean-Luc Pozzo, Didier Astruc
Summary: This study reports the efficient performance of AuNi@ZIF-8 alloys as nanocatalysts for H2 evolution from ammonia borane hydrolysis under visible-light illumination. The catalytic activity of AuNi@ZIF-8 alloys under visible light was found to be 3.4 times higher than that of the monometallic Ni catalyst in the dark. This improvement is attributed to the superior support of ZIF-8 in Au0.5Ni0.5@ZIF-8 and the localized surface plasmon resonance induced between 450 and 620 nm. The results also reveal that the activation of water is always the rate-determining step.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Multidisciplinary
Esther Resines-Urien, Estefania Fernandez-Bartolome, Ana Martinez-Martinez, Arturo Gamonal, Lucia Pineiro-Lopez, Jose Sanchez Costa
Summary: Coordination complexes based on transition metal ions with [Ar]3d(4)-3d(7) electronic configurations can undergo a remarkable switchable phenomenon known as Spin Crossover (SCO). SCO is a detectable, reproducible, and reversible switch between the high spin (HS) and low spin (LS) electronic states of the transition metal, induced by various stimuli. This review presents a comprehensive compilation of iron coordination compounds that exhibit color change due to the interaction between the compounds and vapor analytes, coupled with a spin transition at room temperature.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Melvyn Gorra, Frantz Ndebulia Watchou, Maria A. Palacios, Jerome Long, Saad Sene, Gautier Felix, Nathalie Tanchoux, Francoise Quignard, Joulia Larionova, Yannick Guari
Summary: We present the design of novel composite films consisting of cyano-bridged coordination polymers Fe-II[Fe-II(CN)(5)(NO)] or Ag-2(I)[Fe-II(CN)(5)(NO)] grown into a chitosan matrix, which exhibit a slow release of NO radicals under white light irradiation. The characterisation methods confirm that these composites comprise of approximately 50 wt% cyano-bridged coordination polymer microcrystalline particles embedded in chitosan films. Irradiation with white light for 7 days results in a NO radical delivery of 6.5% and 10.6% for {Fe[Fe(CN)(5)(NO)]}(0.55)@C6H11NO4 and {Ag-2[Fe(CN)(5)(NO)]}(0.28)@C6H11NO4, respectively. The rearrangement of cyano-bridged coordination compounds after the departure of NO leads to the formation of Prussian blue or silver Prussian blue analogues, effectively preventing the undesired release of cyanide as a side effect.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Naixin Kang, Ruofan Shen, Baojun Li, Fangyu Fu, Bruno Espuche, Sergio Moya, Lionel Salmon, Jean-Luc Pozzo, Didier Astruc
Summary: The synthesized AuPd@ZIF-8-alloyed nanoparticles serve as an excellent nanocatalyst for the methanolysis reaction of aminoborane under visible light irradiation, producing H-2 at a high rate. The visible-light-induced acceleration is attributed to the Au plasmonic excitation provoking hot electron transfer from Au to Pd-substrate ensemble.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Yue Liu, Fangyu Fu, Lionel Salmon, Bruno Espuche, Sergio Moya, Murielle Berlande, Jean-Luc Pozzo, Jean-Rene Hamon, Didier Astruc
Summary: A new type of catalyst support, involving the addition of metal ion precursors to core-shell ZIF-8@ZIF-67, was proposed and its performance exceeded that of nanocatalysts in ZIF-8 or ZIF-67. Under visible-light illumination, the optimized nanocatalysts achieved a turnover frequency of 430 h-1 for selective formic acid dehydrogenation. The superiority of ZIF-8@Pd2Ag1@ZIF-67 over other catalysts was confirmed in the benchmarking model of 4nitrophenol reduction, indicating the interest in this novel catalyst design.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Seyed Ehsan Alavi, Baptiste Martin, Yue Zan, Xinyu Yang, Mario Piedrahita-Bello, William Nicolazzi, Jean-Francois Ganghoffer, Lionel Salmon, Gabor Molnar, Azzedine Bousseksou
Summary: This study investigates the interplay between the thermomechanical and spin-crossover properties of stimuli-responsive polymer composites containing [Fe(NH2trz)3]SO4 and [Fe(Htrz)(trz)2]BF4 particles embedded in thermoplastic polyurethane and P(VDF-TrFE) matrices. The composites exhibit characteristic elastic softening and increased mechanical damping around the spin transition temperature, resulting from the significant spin state-volume strain coupling in the particles. The transformation strain and stress in the composites significantly increase and decrease, respectively, in soft matrices, as explained by micromechanical simulations. These findings offer a fundamental understanding and quantitative guidelines for the design of spin-crossover polymer composites for mechanical transducer applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Damian Paliwoda, Laure Vendier, Livia Getzner, Frederico Alabarse, Davide Comboni, Baptiste Martin, Seyed Ehsan Alavi, Mario Piedrahita Bello, Lionel Salmon, William Nicolazzi, Gabor Molnar, Azzedine Bousseksou
Summary: Two benchmark Fe(II)-triazole spin-crossover compounds, [Fe(Htrz)2trz]BF4 (1) and [Fe(NH2trz)3]SO4 (2), were investigated using various techniques to evaluate their transformation strain, compressibility, and anisotropy. Elastic softening and mechanical damping were observed during the spin-crossover process in both compounds, suggesting a coupling between spin state and lattice strain. The elastic potential energy, stored elastic work, and frictional work were assessed, providing important insights for understanding the behavior of this compound family and guiding their technological applications.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Inorganic & Nuclear
Francisco Martinez-Pena, Sonia Infante-Tadeo, Jose Sanchez Costa, Ana M. Pizarro
Summary: Tethered ruthenium(II) complexes can be converted into their open-tethered chlorido counterparts via a solid-state reaction in the presence of HCl vapors. The reaction is reversible and the crystallinity is maintained in both materials.
INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Maxime Roger, Yann Bretonniere, Yann Trolez, Antoine Vacher, Imane Arbouch, Jerome Cornil, Gautier Felix, Julien De Winter, Sebastien Richeter, Sebastien Clement, Philippe Gerbier
Summary: This article describes three new tetraphenylethene (TPE) push-pull chromophores with strong intramolecular charge transfer. The compounds were synthesized through [2 + 2] cycloaddition-retroelectrocyclization (CA-RE) click reactions using electron-deficient alkenes and an electron-rich alkyne-tetrafunctionalized TPE. Only the starting TPE-alkyne showed significant aggregation-induced emission (AIE) behavior, while the other compounds did not exhibit fluorescence. The UV-Visible absorption spectra showed a red-shift, especially for TPE-F-4-TCNQ. Photothermal studies revealed promising properties for TPE-TCNQ and TPE-F4-TCNQ in the solid state, with TPE-F4-TCNQ showing excellent performance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Estefania Fernandez-Bartolome, Jose Santos, Eider Rodriguez-Sanchez, E. Carolina Sanudo, Nazario Martin, Jose Sanchez Costa
Summary: This study describes a new pure organic dynamic framework based on hexakis[60]fullerene held together by weak van der Waals interactions. The structure is capable of absorbing and releasing chloroform, providing new insight into the design of organic molecular crystals for selective adsorption applications.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Lijun Zhang, Karl Ridier, Oleksandr Ye. Horniichuk, Steïphane Calvez, Lionel Salmon, Gaïbor Molnar, Azzedine Bousseksou
Summary: The formation of hybrid light-matter states, which allows control of quantum-mechanical states and manipulation of molecular materials, has been observed in switchable strong light-matter coupling involving bistable spin-crossover molecules. The thermally induced switching between low-spin and high-spin states of these molecules enables fine control of the light-matter hybridization strength, offering the possibility of reversible switching between ultrastrong- and weak-coupling regimes within a single photonic structure. This work demonstrates the potential of spin-crossover molecular compounds in the development of tunable polaritonic devices and polaritonic chemistry.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Angel Fernandez-Blanco, Lucia Pineiro-Lopez, Monica Jimenez-Ruiz, Stephane Rols, Jose Antonio Real, Jose Sanchez Costa, Roberta Poloni, J. Alberto Rodriguez-Velamazan
Summary: In this study, the binding mechanism of CO and CO2 in Fe(pz)[Pt(CN)(4)] was investigated using neutron diffraction, inelastic neutron scattering, and density-functional theory calculations. Two adsorption sites were identified, and the configurations were consistent with the INS data. Spectral changes indicated a physisorption mechanism, supported by computed binding energy and molecular orbital analysis. This work highlights the strength of combining neutron techniques and DFT calculations to characterize gas adsorption mechanisms in similar materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Automation & Control Systems
Yue Zan, Mario Piedrahita-Bello, Seyed E. Alavi, Gabor Molnar, Bertrand Tondu, Lionel Salmon, Azzedine Bousseksou
Summary: The paper presents a bilayer bending cantilever actuator made of thermoplastic polyurethane (TPU) with embedded [Fe(NH(2)trz)(3)](SO4) molecular spin-crossover (SCO) particles. The actuator is capable of converting electrothermal input into mechanical response, and exhibits a curvature change of 0.11 mm^-1, a free transformation strain of 1.6%, and an effective work density of 1.25 mJ cm^-3. The actuator also demonstrates a fast response time and robustness in closed-loop experiments.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xinyu Yang, Alejandro Enriquez-Cabrera, Dorian Toha, Yannick Coppel, Lionel Salmon, Azzedine Bousseksou
Summary: A pure mixed-anion Fe(NH(2)trz)(3)(BF4)(SiF6)(0.5) spin crossover complex is obtained through a solid-liquid post synthetic modification approach from the Fe(NH(2)trz)(3)(BF4)(2) parent complex. Highly crystalline powder samples incorporating homogeneous micrometric (1 & mu;m long) rod-shaped particles can be achieved using this method. This compound exhibits an abrupt spin crossover behavior with a narrow (10 K) hysteresis loop centered just above room temperature (320 K), making it highly interesting for integration into various application devices.
DALTON TRANSACTIONS
(2023)
