Article
Chemistry, Physical
Yu Zhang, Qingyuan Chen, Shuo Chen, Shanling Wang, Meng Zhang, Kui Yu
Summary: In this study, the first synthesis of aqueous-phase CdTe magic-size clusters (MSCs) was reported, which were found to evolve from nonabsorbing precursor compounds (PCs). CdCl2 and Na2TeO3 were used as the Cd and Te sources, while l-cysteine acted as a ligand and NaBH4 as a reductant. By adding butylamine to a reaction mixture at 5°C, CdTe MSCs were obtained. The self-assembly of Cd and Te precursors, followed by the formation of Cd-Te covalent bond inside each assembly, resulted in one CdTe PC, which quasi-isomerized to one CdTe MSC in the presence of butylamine. Fragmentation of PCs at higher temperatures such as 25°C assisted the nucleation and growth of CdTe quantum dots. A novel approach was introduced to synthesize aqueous-phase CdTe PCs, which subsequently transformed into CdTe MSCs in the presence of primary amines.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Savas Delikanli, Furkan Isik, Emek G. Durmusoglu, Onur Erdem, Farzan Shabani, Betul Canimkurbey, Satish Kumar, Hamed Dehghanpour Baruj, Hilmi Volkan Demir
Summary: This study demonstrates the achievement of optical gain in an aqueous medium using specially designed heterostructured quantum wells, opening up possibilities for bio-optoelectronic applications.
Article
Chemistry, Multidisciplinary
Junjie Hao, Junzi Li, Meijuan Chen, Xijian Duan, Bing Xu, Yiwen Li, Tingchao He, Xiao Wei Sun, Marie-Helene Delville, Jiaji Cheng
Summary: This article introduces a top-down chemical etching process that allows for precise control of nanocrystal solutions with identical concentrations, enabling the study of ligand-induced chiral conduction mechanisms. The results indicate a negative correlation between the shell layer and the chirality of the first exciton peak, but a positive correlation with the chirality of the CdS shell absorption. The integrity of the core is essential for maintaining high circular dichroism and circularly polarized luminescence signals.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Xiling Yang, Yun Li, Peisen Zhang, Lingfei Guo, Xiaoqi Li, Yiyang Shu, Kuiyu Jiang, Yi Hou, Lihong Jing, Mingxia Jiao
Summary: A novel aqueous phase synthetic strategy for Mn2+ doping of ZnS shell grown on Zn-Cu-In-Se core quantum dots (ZCISe@ZnS:Mn QDs) is developed, providing excellent NIR fluorescence and magnetic properties for tumor theranostics. The Mn-doped QDs exhibit enhanced ROS production for efficient photo-assisted ablation of cancer cells upon NIR light irradiation.
Article
Chemistry, Medicinal
Xavier Rozanska, Erich Wimmer, Frederick de Meyer
Summary: Aqueous tertiary amine solutions are being increasingly employed in industrial CO2 capture operations due to their higher energy efficiency and greater CO2 absorption capacity compared to primary or secondary amines. However, they often exhibit lower CO2 absorption rates, making it important to identify tertiary amines with faster absorption capabilities for practical applications.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2021)
Article
Chemistry, Physical
Houquan Deng, Xunuo Lou, Wenqi Lu, Jian Zhang, Di Li, Shuang Li, Qingtang Zhang, Xuemei Zhang, Xiang Chen, Dewei Zhang, Yongsheng Zhang, Guodong Tang
Summary: By manipulating the band structure and introducing SnTe nanocrystals, ultrahigh thermoelectric performance of MnTe was achieved, with enhanced Seebeck coefficient and reduced lattice thermal conductivity. This novel strategy decouples electron and phonon transport of MnTe, contributing to a record high ZT value at 873 K for the Mn1.06Te-2% SnTe material, promoting MnTe-based materials as a robust candidate for waste heat recovery at medium temperature.
Article
Chemistry, Multidisciplinary
Yuxiu Jia, Hui Liu, Peng Cai, Xinran Liu, Luolisha Wang, Ling Ding, Guiyun Xu, Wei Wang, Mingxia Jiao, Xiliang Luo
Summary: This study presents an aqueous synthesis approach for Cu-In-Se/ZnS quantum dots emitting in the near-infrared spectral range. The photoluminescence of the dots can be effectively controlled by adjusting the sulfur source, resulting in increased quantum yields by four times and red-shifted emission peaks from 809 nm to 830 nm.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Aniket S. Mule, Sergio Mazzotti, Aurelio A. Rossinelli, Marianne Aellen, P. Tim Prins, Johanna C. van der Bok, Simon F. Solari, Yannik M. Glauser, Priyank Kumar, Andreas Riedinger, David J. Norris
Summary: The study investigates the growth mechanism of semiconductor magic-sized clusters, with a particular focus on CdSe nanocrystals. By synthesizing a series of gradually increasing magic-sized nanocrystals and developing a microscopic model, it reveals the layer-by-layer growth mechanism of zinc-blende crystallites and the source of special stability in these nanocrystals. The analysis also identifies strong similarities with the growth of semiconductor nanoplatelets, and exploits this to further increase the size range of magic-sized nanocrystals.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Xiaoyu Qiu, Veronica Pawlik, Shan Zhou, Jing Tao, Younan Xia
Summary: Two growth patterns of Au atoms on penta-twinned Pd decahedra were reported, resulting in asymmetric Pd-Au Janus icosahedra and anisotropic Pd@Au core-shell starfishes, respectively. The injection rate of Au(III) ions determined the growth pattern, with slow injection leading to asymmetric growth and fast injection resulting in symmetric growth. Mechanistic analysis revealed the formation process of the two heterostructures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Mouhong Lin, Jian Wang, Gyeong-Hwan Kim, Jianan Liu, Limin Pan, Yeonhee Lee, Jeong-Wook Oh, Yoonjae Jung, Sungjae Seo, Youngju Son, Jongwoo Lim, Jungwon Park, Taeghwan Hyeon, Jwa-Min Nam
Summary: This study developed a new one-pot heterointerfacial metamorphosis (1HIM) method that can form a variety of highly crystalline heterostructured nanoparticles at relatively low temperatures, including metal-semiconductor nanoframes. The technology offers a new paradigm for synthesizing heterostructures with unique or synergistic properties and functions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Takayuki Ban, Seiya Hirose, Karin Konishi, Takuya Nakagawa, Chika Takai-Yamashita, Yutaka Ohya
Summary: A bottom-up synthesis of titanate nanoflakes with euhedral shapes was achieved through an aqueous solution process by adding organic ligands and controlling reaction conditions. The addition of lactic acid and triethanolamine helped to inhibit the formation of insoluble amorphous phases, while the combination of triethanolamine and tetrabutylammonium hydroxide facilitated the stabilization and further crystal growth of preformed titanate nanoflakes, resulting in the formation of euhedral shapes.
Article
Chemistry, Physical
Takaaki Tomai, Liangyu Tang, Akira Yoko, Yuki Omura, Gimyeong Seong, Tadafumi Adschiri
Summary: The study introduces a method for regenerating degraded facet-controlled nanoparticle catalysts through the dissolution-reprecipitation process and surface crystalline structure reorientation using an organic modifier. The modifier stabilizes the (100) facet, accelerates the dissolution-reprecipitation process, and promotes facet modification and catalyst regeneration.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yiming Wang, Nitya Sai Reddy Satyavolu, Hong Yang, Yi Lu
Summary: This study systematically analyzed the evolution of structural and functional parameters in the growth of Au-Ag nanostructures controlled by two DNA sequences. It deconvoluted the contributions of structural parameters in affecting the plasmonic properties and designed new nanostructures by exchanging DNA sequences.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Gill M. Biesold, Shuang Liang, Blair Brettmann, Naresh Thadhani, Zhitao Kang, Zhiqun Lin
Summary: This review introduces colloidal semiconductor nanocrystals and examines the effects of uniform pressure on the optical properties of various semiconductor nanocrystals, summarizing the optical properties of these nanocrystals under static and dynamic pressure. Future research directions and applications utilizing the pressure-dependent optical properties of semiconductor nanocrystals are also discussed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Taro Uematsu, Manunya Tepakidareekul, Tatsuya Hirano, Tsukasa Torimoto, Susumu Kuwabata
Summary: In this study, monodispersed quaternary nanoparticles of silver indium gallium sulfide (AgInxGa1-xS2) were synthesized without solid byproducts. The high reactivity of silver was utilized to produce small Ag2S nanoparticles, which were then reacted with indium, gallium, and sulfur to form AgInxGa1-xS2 nanoparticles. After coating with gallium sulfide shells, the core/shell quantum dots exhibited intense, green-colored band-edge emission with tunable peak wavelength.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)