Article
Chemistry, Multidisciplinary
Yingyue Cui, Jin Li, Yingjun Cai, Haitao Zhang, Suojiang Zhang
Summary: A high catalytic activity and high conductivity sulfur host material was introduced, utilizing intrinsic lattice defects and composite carbon structure. The material can catalyze sulfur chemistry, exhibit high cycling stability, and rate performance.
Article
Chemistry, Multidisciplinary
Fengfeng Han, Liwen Fan, Zhiguo Zhang, Xitian Zhang, Lili Wu
Summary: In this study, Pt nanoparticles were incorporated into biomass-derived carbon materials to address the challenges of polysulfide shuttle effect and sluggish nucleation of Li-2 S in lithium-sulfur batteries (LSBs). The Pt nanoparticles not only enhanced the electrical conductivity of the sulfur cathodes and immobilized LiPSs, but also catalyzed the redox reactions of sulfur species bidirectionally and regulated the 3D deposition and growth of Li-2 S, resulting in accelerated conversion of LiPSs in LSBs.
Review
Chemistry, Multidisciplinary
Jinmeng Sun, Yuhang Liu, Lei Liu, Jingxuan Bi, Siying Wang, Zhuzhu Du, Hongfang Du, Ke Wang, Wei Ai, Wei Huang
Summary: Lithium-sulfur batteries are promising candidates for next-generation energy storage with superior energy density. The sluggish deposition of Li2S, which contributes to 75% of the overall capacity, remains a formidable challenge. Efforts have been made to optimize the interface for efficient Li2S deposition, but a comprehensive overview and understanding are still lacking.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuhao Tian, Guo Liu, Shengxin Xu, Cong Han, Kun Tao, Juanjuan Huang, Shanglong Peng
Summary: In this study, a new functionalized separator for Li-S batteries is proposed, which improves the cycle performance and reaction kinetics by changing the deposition mode and controlling the charge density. Experimental results show that this separator can effectively suppress the shuttle effect of LiPSs and achieve efficient utilization of cathode materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yongjo Jung, Seoungkyu Park, Jin Kon Kim, Minkyung Kim, Byoungwoo Kang
Summary: Anodeless Li2S battery with modified Cu electrode surface properties shows enhanced kinetics and cycle stability, achieving high capacity retention and fast charging and discharging rates by enhancing Li nucleation, Li metal structure, and reducing native oxide.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Arghadwip Paul, Suman Samantray, Marco Anteghini, Mohammed Khaled, Birgit Strodel
Summary: This study analyzed molecular dynamics simulations of Aβ peptide using different force fields to study its structure and dynamics, providing answers to important questions related to Aβ, such as suitable force fields for modeling, the actual appearance of Aβ peptide, and the time required for MD simulations to reach equilibrium. The analyses presented in this study will serve as a useful reference guide for understanding the behavior of Aβ peptide and other similar disordered proteins.
Article
Chemistry, Physical
Jin-Lin Yang, Da-Qian Cai, Qiaowei Lin, Xin-Yu Wang, Zou-Qiang Fang, Ling Huang, Zhi-Jie Wang, Xiao-Ge Hao, Shi-Xi Zhao, Jia Li, Guo-Zhong Cao, Wei Lv
Summary: By introducing grain boundaries in the catalyst, fast nucleation and three-dimensional deposition of Li2S around them can be achieved, avoiding the passivation of the catalyst surface and achieving high capacity retention for lithium-sulfur batteries.
Article
Chemistry, Multidisciplinary
Jin-Lin Yang, Da-Qian Cai, Xiao-Ge Hao, Ling Huang, Qiaowei Lin, Xiang-Tian Zeng, Shi-Xi Zhao, Wei Lv
Summary: In this study, a heterostructure catalyst with rich heterointerfaces was prepared by modifying Mo2N microbelt with SnO2 nanodots, effectively enhancing the performance of lithium-sulfur batteries to achieve high capacity and good cyclic stability.
Article
Chemistry, Multidisciplinary
Zhihao Zeng, Wei Nong, Yan Li, Chengxin Wang
Summary: The study explores the Li2S oxidation processes over MN4@G catalysts and identifies three key parameters related to Li2S decomposition, which can serve as efficient descriptors. Two excellent SACs, MoN4@G and WN4@G, are screened using these parameters to enhance the redox kinetics of Li2S. This method can be extended to a wider range of SACs for efficient catalyst design in Li-S batteries and beyond.
Review
Crystallography
Panayiotis A. Varotsos, Nicholas Sarlis, Efthimios S. Skordas
Summary: This article reviews the research on the relationship between point defects and bulk properties of solids over the past few decades. It also discusses several challenging applications in the field over the last decade, including high pressure measurements, superconductors, nuclear fuels, micro-electronics materials, geophysics and seismology.
Article
Construction & Building Technology
Karen L. Scrivener, Thomas Matschei, Fabien Georget, Patrick Juilland, Aslam Kunhi Mohamed
Summary: In this paper, progress in understanding hydration kinetics is reviewed, and the practical understanding of cementitious materials is linked to the field of aqueous solution thermodynamics. The knowledge gaps related to aqueous speciation, composition and structure of complex solid solutions, solubility of anhydrous species and hydrates, and water activities are discussed.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Multidisciplinary Sciences
Shuai Zhao, Youhong Sun, Xiaoshu Lue, Qiang Li
Summary: The use of carbon dioxide as a heat-carrying fluid can significantly increase the efficiency of oil shale pyrolysis and the release of volatile substances.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Artem Levitsky, Sebastian Alexander Schneider, Eugen Rabkin, Michael F. Toney, Gitti L. Frey
Summary: The performance of organic solar cells (OSC) is dependent on the morphology of the active layer, which undergoes changes during thermal annealing. Research shows that in the early stages of annealing, spinodal decomposition may lead to the formation of a bicontinuous structure, while large polycrystalline fullerene aggregates are formed in later stages. The co-existence of spinodal decomposition and nucleation and growth mechanisms is surprising, but can be explained by a metastable monotectic phase diagram.
MATERIALS HORIZONS
(2021)
Article
Environmental Sciences
Van Liem-Nguyen, Ulf Skyllberg, Erik Bjorn
Summary: This study investigated the relationship between Hg-II speciation and MeHg formation in boreal wetlands, using isotopic tracers and thermodynamic speciation models. The results showed a decisive role of Hg-II concentration in porewater for Hg-II methylation, and a significant positive correlation between methylation potential and low molecular mass thiol compounds of biological origin.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Zhe Chen, Pai Liu, Hang Su, Yun-Hong Zhang
Summary: Depletion of chloride, nitrate, or ammonium from atmospheric aerosols represents a unique class of displacement reactions, which can significantly modify the composition of aerosols and perturb the atmospheric cycle of volatile compounds. The study elucidated the thermodynamics and kinetics of these reactions, revealing lower effective dissociation constants and rapid kinetics in aerosol microdroplets. These findings suggest the importance of understanding the unique displacement reactions for predicting the properties of atmospheric aerosols.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
