Study of various ground state decay mechanisms of Actinide nuclei

The special property of the actinide mass region is that nuclei belonging to this group are radioactive and undergo different ground state processes,such as alpha decay,cluster radioactivity(CR),heavy particle radioactivity(HPR),and spontaneous fission(SF).In this study,the probable radioactive decay modes of the heavy mass region(Z=89-102) are studied within the framework of the preformed cluster model(PCM).In the PCM,the radioactive decay modes are explored in terms of the preforamation probab...     

Feature identification in complex fluid flows by convolutional neural networks

Recent advancements have established machine learning’s utility in predicting nonlinear fluid dynamics,with predictive accuracy being a central motivation for employing neural networks.However,the pattern recognition central to the networks function is equally valuable for enhancing our dynamical insight into the complex fluid dynamics.In this paper,a single-layer convolutional neural network(CNN) was trained to recognize three qualitatively different subsonic buffet flows(periodic,quasi-periodi...     

Improving the electrochemical performance of α-MoO3 electrode using aluminium trifluoromethanesulfonate water-in-salt electrolyte

Orthorhombic molybdenum trioxide(α-MoO₃) electrode material experiences severe capacity fading and poor cycling stability in aqueous electrolytes.We investigated the charge-storage performance of α-MoO₃ electrode in aluminium trifluoromethanesulfonate(Al(OTf)₃)-based salt-in-water electrolyte(SiWE) and water-in-salt electrolyte(WiSE).It was found that α-MoO₃ electrode exhibits significantly different cycling stabilities in both electrolytes with capaci...     

Hierarchically designed MoWSe2/WO3/C anode for fast and efficient Na+ storage

Exploring anode materials with high energy and power density is one of the critical milestones in developing sodium-ion batteries/capacitors(SIBs/SICs). Here, the Mo and W-based bimetallic organic framework(Mo-W-MOF) with core–shell structure is first formed by a facile strategy, followed by a selenization and carbonization strategy to finally prepare multileveled Mo WSe₂/WO₃/C anode materials with core–shell petal like curled nanosheet structure. Between the petal(MoSe     

Bimetallic Ni–Co MOF@PAN modified electrospun separator enhances high-performance lithium-sulfur batteries

Lithium–sulfur(Li–S) batteries with high energy density are considered promising energy storage devices for the next generation. Nevertheless, the shuttle effect and the passive layer between the separator and the electrodes still seriously affect the cycle stability and life. Herein, a bimetallic Ni–Co metal–organic framework(MOF) with adsorption and catalytic synergism for polysulfides was successfully synthesized as an electrospinning separator sandwich for Li–S batteries. Introducing porous ...     

Combining descriptor-based analyses and mean-field modeling of the electrochemical interface to comprehend trends of catalytic processes at the solid/liquid interface

Electrocatalysis is undergoing a renaissance due to its central importance for a sustainable energy economy, relying on green(electro-)chemical processes to harvest, convert, and store energy. Theoretical considerations by electronic structure methods are key to identify potential material motifs for electrocatalytic processes at the solid/liquid interface. Most commonly, heuristic concepts in the realm of materials screening by the compilation of volcano plots are used, which rely on a plethora...     

Meta-analysis of CO2 conversion,energy efficiency,and other performance data of plasma-catalysis reactors with the open access PIONEER database

This paper brings the comparison of performances of CO₂ conversion by plasma and plasma-assisted catalysis based on the data collected from literature in this field, organised in an open access online database. This tool is open to all users to carry out their own analyses, but also to contributors who wish to add their data to the database in order to improve the relevance of the comparisons made, and ultimately to improve the efficiency of CO₂ conversion by plasma-catalys...     

Improvement strategies for Ni-based alcohol steam reforming catalysts

Steam reforming(SR) of fossil methane is already a well-known, documented and established expertise in the industrial sector as it accounts for the vast majority of global hydrogen production. From a sustainable development perspective, hydrogen production by SR of biomass-derived feedstock represents a promising alternative that could help to lower the carbon footprint of the traditional process. In this regard, bio-alcohols such as methanol, ethanol or glycerol are among the attractive candida...     

Ultrasmall CoS nanoparticles embedded in heteroatom-doped carbon for sodium-ion batteries and mechanism explorations via synchrotron X-ray techniques

Transition metal sulfides have been regarded as promising anode materials for sodium-ion batteries(SIB).However, they face the challenges of poor electronic conductivity and large volume change, which result in capacity fade and low rate capability. In this work, a composite containing ultrasmall CoS(～7 nm)nanoparticles embedded in heteroatom(N, S, and O)-doped carbon was synthesized by an efficient one-step sulfidation process using a Co(Salen) precursor. The ultrasmall CoS nanoparticles are be...     

Standard-state entropies and their impact on the potential-dependent apparent activation energy in electrocatalysis

The apparent activation energy,E_app,is a common measure in thermal catalysis to discuss the activity and limiting steps of catalytic processes on solid-state materials.Recently,the electrocatalysis community adopted the concept of E_app and combined it with the Butler-Volmer theory.Certain observations though,such as potential-dependent fluctuations of E_app,are yet surprising because they conflict with the proposed linear decrease in E_app with increasin...