Article
Polymer Science
Jhon Puerres, Pablo Ortiz, Maria T. Cortes
Summary: Polypyrrole (PPy) is a highly attractive conducting polymer for thin film applications due to its excellent electrical conductivity, stability, optical properties, and biocompatibility. Studying the nucleation and growth mechanism of electro-synthesized PPy on FTO substrates, the research found that the synthesis potential significantly affects the film's growth pattern, homogeneity, adhesion, conductivity, and HOMO energy levels. These findings have important implications for utilizing electro-synthesized PPy in thin film applications requiring precise control of material properties.
Article
Electrochemistry
Han Cai, Yahui Li, Yongjin Wu, Haodong Zhang, Yanxin Zhang, Yunna Sun, Guilian Wang, Jungsuk Song, Guifu Ding
Summary: To meet the requirements of diversified development in the electronics industry, the development of high-performance 3D metal microstructures is crucial. However, the formation of 3D thick silver still poses challenges due to high internal stresses and various defects. In this study, a method for low-stress and highly chemically stable thick silver electrodeposition for 3D Ag-based microstructures was proposed, and systematic studies were conducted to understand the nucleation mechanism and optimize the external parameters. The feasibility of the thick silver preparation process was demonstrated, and 3D Ag microstructures with satisfactory forming ability were successfully fabricated.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Osamu Oki, Hiroshi Yamagishi, Yasuhiro Morisaki, Ryo Inoue, Kana Ogawa, Nanami Miki, Yasuo Norikane, Hiroyasu Sato, Yohei Yamamoto
Summary: This study reports a method to achieve synchronous, uniaxial, and stepwise growth of micrometer-scale skeletal single crystals by drop-casting a heated ethanol solution onto a quartz substrate, where molecules spontaneously assemble into standing vessel-shaped single crystals.
Article
Chemistry, Multidisciplinary
Jianxin Kang, Gui Liu, Qi Hu, Yezeng Huang, Li-Min Liu, Leiting Dong, Gilberto Teobaldi, Lin Guo
Summary: This study demonstrates stress-induced, oriented nucleation and growth of nanosheet arrays, which improves the kinetics of oxygen evolution and achieves ultrafast oxygen production. The ordered array maintains a steady flow of liquids and suppresses the detrimental production of flow-blocking oxygen bubbles.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Physics, Applied
Kazuhisa Sato, Naoya Asakura
Summary: This study used in situ biasing high-voltage transmission electron microscopy to study ferroelectric domain dynamics in Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) single crystals. Time-resolved recording of polarization switching on a 2.5 ms time scale revealed reversible response of micrometer-scale domains to an electric field of 1 kV/mm. Analysis on smaller sized domains showed that switching initiated at a corner of a domain and proceeded rapidly inward, with a maximum switching rate of 6-8 mu m/s.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Shuhada A. Idrus-Saidi, Jianbo Tang, Stephanie Lambie, Jialuo Han, Mohannad Mayyas, Mohammad B. Ghasemian, Francois-Marie Allioux, Shengxiang Cai, Pramod Koshy, Peyman Mostaghimi, Krista G. Steenbergen, Amanda S. Barnard, Torben Daeneke, Nicola Gaston, Kourosh Kalantar-Zadeh
Summary: This study explores the method of dissolving and crystallizing zinc in liquid gallium to form flake-like zinc crystals. By reducing the surface tension of the liquid metal solvent and simulating interface stability, highly crystalline and shape-controlled metallic or multimetallic fine structures can be created.
Article
Multidisciplinary Sciences
Yunxiang Zhao, Shan Guo, Manjing Chen, Bingan Lu, Xiaotan Zhang, Shuquan Liang, Jiang Zhou
Summary: In this study, the authors demonstrate that preferential distribution of intermetallic compounds at grain boundaries can effectively suppress intergranular corrosion and tailor deposition behavior, leading to stable aqueous zinc batteries. The high reversibility of the zinc anode reaches 99.85% over 4000 cycles.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Geraldine Dantelle, Sandrine Beauquis, Ronan Le Dantec, Virginie Monnier, Christine Galez, Yannick Mugnier
Summary: With the miniaturization of electronic-based devices, there is increasing research interest in the elaboration of multifunctional noncentrosymmetric nanocrystals with ferroelectric, pyroelectric, piezoelectric, and nonlinear optical properties. This article critically reviews recent achievements in the preparation of 0-D perovskite and nonperovskite oxides in the size range of 5-500 nm using solution-based methods, and discusses the size, morphology, and aggregation state in relation to the proposed formation mechanisms. The research community needs to pay special attention to the detailed understanding of the reaction pathways and crystallization mechanisms in order to improve the rational design of these multifunctional oxides in the future.
Article
Chemistry, Applied
Zuxin Sun, Samuel Eyley, Yongjian Guo, Reeta Salminen, Wim Thielemans
Summary: Three-dimensional polypyrrole (PPy) electrodes were prepared using electrodepositing method with chloride anions and polyanionic ribbonlike nanoparticles as scaffold material. The highest area capacitance was 1.39 F cm2 and the electrodes exhibited excellent areal capacitance under high mass loading.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Chengrong Cao, Wei Tang, John H. H. Perepezko
Summary: The kinetics of first order liquid-liquid transition in a single-component liquid D-mannitol was examined using high rate of flash differential scanning calorimetry measurements, revealing the distinction between nucleation-growth and spinodal-decomposition types of LLT by controlling the annealing temperature. The portion covering the nucleation-growth type of LLT on the time-temperature-transformation curve was well fitted with a classical nucleation theory analysis.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Thermodynamics
Yoshitaka Ueki, Yuta Tsutsumi, Masahiko Shibahara
Summary: In this study, classical molecular dynamics simulations were used to numerically investigate the behavior of nanoscale H2O droplets during cooling and ice formation, revealing the patterns of time-varying interfacial thermal resistance and density depletion length.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Multidisciplinary
Masahiro Kanno, Yutaka Tsuboi, Shigeki Matsuo, Yoshihisa Suzuki
Summary: In this study, the activation energy of kink incorporation and the vibrational frequency of particles on the growth interface of colloidal crystals with attractive interactions were successfully estimated using two different approaches. The results showed that the method of direct observation of particle movements was more accurate than the Arrhenius plot method. This study quantitatively estimated the activation energy of kink incorporation and the vibrational frequency of particles on the growth interface, which contributes significantly to the understanding of crystal growth mechanisms.
Article
Chemistry, Multidisciplinary
Zhaofang Cheng, Shaodan He, Xiaona Han, Min Wang, Shimin Zhang, Shiru Liu, Gongying Liang, Shengli Zhang, Minggang Xia
Summary: Interfaces play a crucial role in controlling the nucleation and growth of large NbS2 single crystals through vapor-liquid-solid method, with the vapor-liquid interface reducing nucleation density and the liquid-solid interface increasing growth rate.
Article
Nanoscience & Nanotechnology
Yue Li, Zhijun Wang, Junjie Li, Jincheng Wang
Summary: The study introduces a novel approach to describe grain growth kinetics, which effectively reflects the impact of grain-environment heterogeneity on the normalized grain growth rate.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Multidisciplinary
Frederico Marques Penha, Ashwin Gopalan, Jochem Christoffel Meijlink, Fatma Ibis, Huseyin Burak Eral
Summary: The study proposes a new crystal engineering technique where surfactants in solution self-assemble into mesoscopic structures to control the selective crystallization of polymorphs, providing a new approach for the preparation of polymorphs.
CRYSTAL GROWTH & DESIGN
(2021)
