Review
Materials Science, Multidisciplinary
Huai-Jun Lin, Yan-Shan Lu, Liu-Ting Zhang, Hai-Zhen Liu, Kaveh Edalati, Adam Revesz
Summary: In this review, recent advances in the study of metastable alloys for hydrogen storage applications are comprehensively reviewed. The synthesis methods and hydrogen storage properties of metastable alloys are summarized and discussed, highlighting their unique kinetics and thermodynamics properties. For example, Mg-based amorphous and nanoglass alloys exhibit superior hydrogenation kinetics and higher hydrogen storage capacity, while the immiscible Mg-Mn and Mg-Zr alloys show destabilized thermodynamics properties.
Article
Chemistry, Multidisciplinary
Iolanda Di Bernardo, Joan Ripoll-Sau, Jose Angel Silva-Guillen, Fabian Calleja, Cosme G. Ayani, Rodolfo Miranda, Enric Canadell, Manuela Garnica, Amadeo L. Vazquez L. de Parga
Summary: This study uses scanning tunneling microscopy (STM) to investigate MBE-grown monolayer (ML) TaTe2, and reports the first observation of the coexistence of 1H polymorphic phase and 1T phase, with their relative coverage controlled by adjusting synthesis parameters. Several superperiodic structures compatible with CDWs are observed on the 1T phase. The study provides theoretical insight into the stability of different phases, determined by the balance of Te-Ta and Te-Te interactions.
Article
Chemistry, Applied
Matteo Pecchi, Alessandro Cascioli, Alex R. Maag, Jillian L. Goldfarb, Marco Baratieri
Summary: In situ analysis of hydrothermal carbonization (HTC) and liquefaction (HTL) processes can be achieved using high-pressure differential scanning calorimetry (DSC). This study applies a newly developed DSC method to continuously assess the heat release profile of cellulose across the hydrothermal spectrum. The results reveal that both HTC and HTL are exothermic reactions, and a thermodynamic transition occurs at the transition from HTC to HTL. This novel DSC technique could reduce cost and time in evaluating potential feedstocks for HTC and HTL, expediting the commercialization of these thermochemical processes.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Zihui Dong, Dmitry Sergeev, Michael F. Dodge, Francesco Fanicchia, Michael Mueller, Shiladitya Paul, Hongbiao Dong
Summary: The study on CoCrFeMoNi high entropy alloys reveals their potential for high temperature coating applications, with phase transitions and structural characteristics providing key information for the development of similar thermal spray HEA coatings.
Article
Chemistry, Applied
Ivano Maule, Gabriele Razzetti, Alessandro Restelli, Alessandro Palmieri, Cinzia Colombo, Roberto Ballini
Summary: The thermal stability of a set of aliphatic nitroalkanes was tested by DSC analysis, showing similar exothermic decomposition phenomenon for all compounds. Recommendations for avoiding decomposition were provided based on the estimated maximum process temperature.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2021)
Article
Chemistry, Physical
Danilo Russo, Marcella Calabrese, Raffaele Marotta, Roberto Andreozzi, Almerinda Di Benedetto
Summary: Aqueous formate/bicarbonate solutions are being studied as a safe system for hydrogen storage, and researchers have investigated catalytic systems to improve salt interconversion. Thermodynamic calculations were carried out to determine the maximum storage capacity of the system, and the influence of operating conditions was analyzed. The most promising configurations were simulated for experimental benchmarking and future development.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
Mauricio Rodriguez Chialanza, Sofia Favre Samarra, Andres Perez Parada
Summary: The study found that the size of microplastic particles affects the DSC signal, but through appropriate sample preparation, signals corresponding to microplastics of different sizes can be identified and quantified. Additionally, the application of DSC technique in the field of microplastics may provide estimates of the number of microplastic particles within a sample.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Seemita Banrejee, Asheesh Kumar, Priyanka Ruz, Vasanthakumaran Sudarsan
Summary: Nanocrystalline magnesium prepared by wet milling method without heavy metal catalyst shows improved hydrogen storage properties with higher capacity, following a specific activation energy model for hydrogenation and dehydrogenation kinetics.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Eva S. Cobos, Ignacio E. Sanchez, Lucia B. Chemes, Jose C. Martinez, Javier Murciano-Calles
Summary: PDZ domains play a crucial role in cell signaling and cell-cell junctions, being able to recognize various natural targets. The study reveals a basic specificity in each PDZ domain, with host partners mostly being able to bind their corresponding PDZ domain. Additionally, viral ligands show the ability to bind most of the studied PDZ domains, including those not previously described.
Article
Chemistry, Physical
Joze Arbeiter, Maja Voncina, Barbara Setina Baltic, Jozef Medved
Summary: The transformation of the Al6Fe metastable phase was analyzed using DSC, optical and SEM, and XRD. A low-impurity alloy was produced in a controlled environment, achieving solidification of the Al6Fe phase with a cooling rate of 35 K/s. Homogenization at 600 degrees C for 2-24 h resulted in the completion of transformation from Al6Fe to Al13Fe4.
Article
Nanoscience & Nanotechnology
Ho-Joon Moon, Tae-min Yeo, Seung Hoon Lee, Jung-Wook Cho
Summary: Addition of Zr in Cu-Fe alloys was found to effectively activate γ-Fe nucleation and suppress liquid-liquid phase separation. A combination of thermal instrumental analysis and classical nucleation theory allowed for an effective assessment of LLPS behavior in Cu-Fe alloys.
SCRIPTA MATERIALIA
(2021)
Article
Mechanics
M. Gallo
Summary: This work theoretically investigates the thermal fluctuations of fluid in metastable conditions, revealing that capillarity strongly modifies the fluctuation statistics with increasing fluid metastability and showing a remarkable difference with simple fluid description at nanoscopic scales.
Article
Engineering, Electrical & Electronic
Sherif Elbasuney, M. Yehia, Gharieb S. El-Sayyad
Summary: This study presents a method for achieving intimate mixing between MnO2 NPs and Al NPs through surface modification. Surface modification of Al NPs with PDA was accomplished via in situ polymerization, leading to successful preparation of MnO2/PDA/Al nanocomposite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Energy & Fuels
Shuai Wang, Hui Yong, Jiwei Yao, Jiangwei Ma, Baosheng Liu, Jifan Hu, Yanghuan Zhang
Summary: The Mg90Ce5Y5 alloy was prepared by vacuum induction melting, and Mo, MoO2, and MoO3 were added to it through mechanical ball milling. The microstructure, phase evolution, hydrogen storage thermodynamics, and kinetics were studied using XRD, SEM, TEM, PCT, and DSC methods. The results showed that the internal phases of the Mo catalyzed alloy transformed into MgH2, CeH2.73, YH3, and Mo phases upon hydrogen absorption, while the hydrogenated alloy consisted of MgH2, CeO2, YH3, MgO, and Mo phases for the MoO2 catalyzed alloy, and MgH2, MgO, CeO2, Y2O3, and Mo phases for the MoO3 catalyzed alloy. REDOX reactions occurred between MoO2, MoO3, and the inner phase of the alloy. Compared to the others, the Mo catalyzed alloy exhibited a higher hydrogen absorption saturation ratio, and the MoO2 catalyzed alloy required less time to release H2 compared to the Mo and MoO3 catalyzed alloys. The dehydrogenation activation energy (Edes) of the samples showed an increasing trend in the order of MoO2 catalyzed alloy (110.18 kJ/mol).
JOURNAL OF ENERGY STORAGE
(2023)
Review
Nanoscience & Nanotechnology
Li Ren, Yinghui Li, Ning Zhang, Zi Li, Xi Lin, Wen Zhu, Chong Lu, Wenjiang Ding, Jianxin Zou
Summary: With the urgent need to find green, low-cost, and high-efficiency energy resources due to the depletion of fossil fuels and global warming, hydrogen has been considered as a potential alternative. However, effective and safe hydrogen storage techniques are now becoming a bottleneck for the hydrogen economy. Magnesium-based hydrogen storage materials have garnered interest due to their high storage capacity, low cost, and excellent reversibility. Nano-structuring has proven to be an effective strategy to enhance the thermodynamic and kinetic properties of these materials.
NANO-MICRO LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Jie Zhang, Xiaoyang Chen, MingJian Ding, Jiaqiang Chen, Ping Yu
Summary: This study enhances the compositional inhomogeneity of relaxor ferroelectric thin films to improve their dielectric temperature stability. The prepared films exhibit a relatively high dielectric constant and a very low variation ratio of dielectric constant over a wide temperature range.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xiaoyu Chen, Ranran Zhang, Hao Zou, Ling Li, Qiancheng Zhu, Wenming Zhang
Summary: Polyaniline-manganese dioxide composites exhibit high conductivity, long discharge platform, and stable circulation, and the specific capacity is increased by providing additional H+ ions to participate in the reaction.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xutao Huang, Yinping Chen, Jianjun Wang, Gang Lu, Wenxin Wang, Zan Yao, Sixin Zhao, Yujie Liu, Qian Li
Summary: This study aims to establish a novel approach to better understand and predict the behavior of materials with multi-scale lamellar microstructures. High-resolution reconstruction and collaborative characterization methods are used to accurately represent the microstructure. The mechanical properties of pearlite are investigated using crystal plasticity simulation and in-situ scanning electron microscopy tensile testing. The results validate the reliability of the novel strategy.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Cheng Chen, Fanchao Meng, Jun Song
Summary: This study systematically investigated the unfaulting mechanism of single-layer interstitial dislocation loops in irradiated L12-Ni3Al. The unfaulting routes of the loops were uncovered and the symmetry breaking during the unfaulting processes was further elucidated. A continuum model was formulated to analyze the energetics of the loops and predict the unfaulting threshold.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Darshan Bamney, Laurent Capolungo
Summary: This work investigates the formation of adjoining twin pairs (ATPs) at grain boundaries (GBs) in hexagonal close-packed (hcp) metals, focusing on the co-nucleation (CN) of pairs of deformation twins. A continuum defect mechanics model is proposed to study the energetic feasibility of CN of ATPs resulting from GB dislocation dissociation. The model reveals that CN is preferred over the nucleation of a single twin variant for low misorientation angle GBs. Further analysis considering GB character and twin system alignment suggests that CN events could be responsible for ATP formation even at low m' values.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Bing Han, Zhengqian Fu, Guoxiang Zhao, Xuefeng Chen, Genshui Wang, Fangfang Xu
Summary: This study investigates the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition and reveals the evolution of atomic displacement ordering as the cause for the transition behavior changing from sharp to diffuse. The novel semi-ordered configuration results from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which leads to a diffuse AFE-FE transition while maintaining the switching field.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Akib Jabed, Golden Kumar
Summary: This study demonstrates that cryogenic rejuvenation promotes homogeneous-like flow and increases ductility in metallic glass samples. Conversely, annealing has the opposite effect, resulting in a smoother fracture surface.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xin Ji, Yan Chong, Satoshi Emura, Koichi Tsuchiya
Summary: A heterogeneous microstructure in Ti-15Mo-3Al alloy with heterogeneous distributions of Mo element and omega(iso) precipitates has achieved a four-fold increase in tensile ductility without a loss of tensile strength, by blocking the propagation of dislocation channels and preventing the formation of micro-cracks.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Amit Samanta, Prasanna Balaprakash, Sylvie Aubry, Brian K. Lin
Summary: This study proposes a combined large-scale first principles approach with machine learning and materials informatics to quickly explore the chemistry-composition space of advanced high strength steels (AHSS). The distribution of aluminum and manganese atoms in iron is systematically explored using first principles calculations to investigate low stacking fault energy configurations. The use of an automated machine learning tool, DeepHyper, speeds up the computational process. The study provides insights into the distribution of aluminum and manganese atoms in systems containing stacking faults and their effects on the equilibrium distribution.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Guowei Zhou, Yuanzhe Hu, Zizheng Cao, Myoung Gyu Lee, Dayong Li
Summary: In this work, a physics-constrained neural network is used to predict grain-level responses in FCC material by incorporating crystal plasticity theory. The key feature, shear strain rate of slip system, is identified based on crystal plasticity and incorporated into the loss function as physical constitutive equations. The introduction of physics constraints accelerates the convergence of the neural network model and improves prediction accuracy, especially for small-scale datasets. Transfer learning is performed to capture complex in-plane deformation of crystals with any initial orientations, including cyclic loading and arbitrary non-monotonic loading.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Pengfei Yang, Qichang Li, Zhongying Wang, Yuxiao Gao, Wei Jin, Weiping Xiao, Lei Wang, Fusheng Liu, Zexing Wu
Summary: In this study, the HER performance of Ru-based catalysts is significantly improved through the dual-doping strategy. The obtained catalyst exhibits excellent performance in alkaline freshwater and alkaline seawater, and can be stably operated in a self-assembled overall water splitting electrolyzer.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ilias Bikmukhametov, Garritt J. Tucker, Gregory B. Thompson
Summary: Depositing a Ni-1at. % P film can facilitate the formation of multiple quintuple twin junctions, resulting in a five-fold twin structure and a pentagonal pyramid surface topology. The ability to control material structures offers opportunities for creating novel surface topologies, which can be used as arrays of field emitters or textured surfaces.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Zening Yang, Weiwei Sun, Zhengyu Sun, Mutian Zhang, Jin Yu, Yubin Wen
Summary: Multicomponent oxides (MCOs) have wide applications and accurately predicting their thermal expansion remains challenging. This study introduces an innovative attention-based deep learning model, which achieves improved performance by using two self-attention modules and demonstrates adaptability and interpretability.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ze Liu, Cai Chen, Yuanxun Zhou, Lanting Zhang, Hong Wang
Summary: This study attempts to address the gap in cooling rates between thin film deposition and bulk metallic glass (BMG) casting by correlating the glass-forming range (GFR) determined from combinatorial materials chips (CMCs) with the glass-forming ability (GFA) of BMG. The results show that the full-width at half maximum (FWHM) of the first sharp diffraction peak (FSDP) is a good indicator of BMG GFA, and strong positive correlations between FWHM and the critical casting diameter (Dmax) are observed in various BMG systems. Furthermore, the Pearson correlation coefficients suggest possible similarities in the GFA natures of certain BMG pairs.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Mike Schneider, Jean-Philippe Couzinie, Amin Shalabi, Farhad Ibrahimkhel, Alberto Ferrari, Fritz Koermann, Guillaume Laplanche
Summary: This work aims to predict the microstructure of recrystallized medium and high-entropy alloys, particularly the density and thickness of annealing twins. Through experiments and simulations, a database is provided for twin boundary engineering in alloy development. The results also support existing theories and empirical relationships.
SCRIPTA MATERIALIA
(2024)