Article
Chemistry, Physical
Mohanad H. Mohammed, Zhenxiang Cheng, Shixun Cao, Joseph Horvat
Summary: The dynamics of magnetic moment reversal differs between ErFeO3 and NdFeO3, with the former exhibiting abrupt reversal and the latter gradual reversal. The process of magnetization reversal is temperature-dependent and influenced by the Zeeman splitting energy of rare earth ions and thermal energy.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Crystallography
Jia-De Lin, Po-Chen Wu, Ting-Shan Mo, Bing-Yau Huang, Chie-Tong Kuo, Chia-Rong Lee
Summary: This study demonstrates controllable random lasing emissions in a dye-doped nematic liquid crystal (DDNLC)-infiltrated microcapillary, where the emission wavelength can be adjusted by changing the focusing position of the pumped pulses. By doping azo-dyes in the DDNLC, optical controllability of the lasing intensity and wavelength can be further achieved, enabling potential applications in multicolor emitting sources, vibration sensors, and UV sensors.
Article
Chemistry, Multidisciplinary
Zhongzheng Zhang, Shijian Lu, Guofei Shen, Yonghui Zhao, Tianyang Zhu, Qiang Gao, Nannan Sun, Wei Wei
Summary: In this study, highly ordered nitrogen-doped mesoporous carbon single crystals with tunable morphologies were successfully synthesized using a controllable co-assembly strategy. The effects of various factors on the morphology, structure, and nitrogen content of the carbon crystals were investigated. The role of 2-methylimidazole in the formation of polymer matrices was elucidated.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Materials Science, Ceramics
Le Ngoc Long, Nguyen Thanh Quang, Truong Tung Khuong, Pham Trung Kien, Nguyen Hoc Thang, Tran Van Khai
Summary: 2D-MoS2/rGO nanocomposites were successfully synthesized using a hydrothermal method. The effect of hydrothermal temperature on the structure and optical properties of the material was investigated. Increasing the temperature resulted in improved crystal quality and optical bandgap, suggesting potential applications in electronic devices.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Crystallography
Yuke Shen, Shuang Hao, Angqian Suonan, Yanxia Liu, Hangqi Li, Wei Ma, Lin Zhao, Yagang Zhang
Summary: Nano-micro calcium carbonate, with small particle size, uniform distribution, and good dispersion performance, is widely used as a filler material. This study reports the controllable synthesis of nano-micro calcium carbonate through additive engineering, investigating the effects of various additives on particle size and morphology. The results show that adding sodium dodecyl benzene sulfonate can change the crystal shape and size of the calcium carbonate particles. The mechanism of this controllable synthesis is discussed, and the best additive and synthesis conditions are explored.
Article
Chemistry, Multidisciplinary
Fengyi Wu, Xiaoyong Xu, Zhong Xie, Yaqiong Kong, Duojun Cao, Jiliang Yang
Summary: MoS2 has attracted attention as an electrocatalyst for hydrogen generation. However, bulk MoS2 has weak electrocatalytic activity due to its low electrical conductivity and few active sites. This study develops a method to synthesize nanoscale MoS2 with various morphologies to enhance its conductivity and active sites. Electrochemical tests reveal that MoS2 quantum dots exhibit high electrocatalytic performance due to their abundant active edges and excellent conductivity.
Article
Chemistry, Multidisciplinary
Quangui Fu, Haoxin Mo, Kostya (Ken) Ostrikov, Xiaofeng Gu, Haiyan Nan, Shaoqing Xiao
Summary: A halogen salt-assisted confined-space CVD method was developed for the controllable synthesis of SnS2 flakes parallel to the substrate with improved crystallinity and fewer S vacancies. The resulting SnS2 FET devices and photodetectors exhibited high mobility and responsivity, respectively. Additionally, vertical double-layer MoS2/SnS2 heterostructures were successfully prepared using this method.
Article
Chemistry, Multidisciplinary
Yulong Duan, Sergey Semin, Paul Tinnemans, Jialiang Xu, Theo Rasing
Summary: By controlling the phase boundaries of a thermomechanical molecular crystal, the structural phase transition can be finely controlled, reducing thermal hysteresis and allowing for continuous work output.
Article
Chemistry, Multidisciplinary
Lixin Li, Muzaffar Ahmad Boda, Chen Chen, Feifei Wang, Yun Liu, Zhiguo Yi
Summary: The research successfully prepared uniform BiOBr single-crystal micro-nanosheets with reversible polarization switching and a typical butterfly-shape piezoelectric hysteresis loop, showing high displacement. Photoelectric characteristics show photoelectric anisotropy and photoelectrochemical response, attributed to piezoelectricity and significant increase in surface potential.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Qingshan Yang, Yajie Yang, Qianyu Gong, Jinshu Li, Hwi Je Woo, Jingjie Niu, Minwoo Kim, Sungjoo Lee, Young Jae Song
Summary: In this study, single-crystalline pyramid-shaped TiCx particles were synthesized using a biphase diffusion synthesis method. The growth mode of the particles and their application in photodevices were investigated. The results showed that the TiCx particles exhibited a dendritic growth mode and could enhance the photocurrent through localized surface plasmonic resonance effect.
Article
Materials Science, Multidisciplinary
Amarsingh Bhabu Kanagaraj, Prerna Chaturvedi, Hae Jin Kim, Daniel S. Choi
Summary: Lithium iron phosphate (LiFePO4) cathode materials were synthesized using a hydrothermal process, and the influence of particle growth on microstructural, thermal, mechanical, and electrochemical properties was discussed. Free-standing LiFePO4/MWCNT composite electrodes prepared using tape-casting technique exhibited high specific capacity and long cycle life.
Article
Chemistry, Multidisciplinary
Rongchao Shi, Sanchuan Zhao, Rui Luo, Puxin Cheng, Chao Liu, Xiao Han, Siming Qi, Yunqin Zhang, Jian Zhu, Jialiang Xu, Xian-He Bu
Summary: We report a dynamic organic crystal based on a Ts-extended fluorenone derivative, which exhibits anisotropic lattice expansions and reversible crystal shape deformations upon thermal stimulation. The significant and finely controllable thermomechanical change in this organic crystal promises advanced applications in diverse fields such as intelligent materials and ultrasensitive devices.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Xiaoxu Ji, Yan Yang, Aihua Wang, Qinghuai Zhao
Summary: CuO micro-crystals were synthesized by a large-scale and environmentally friendly hydrothermal route. The CuO electrode exhibited excellent electrocatalytic performance for glucose oxidation, with fast response time, low detection limit, and applicable linear detection range. It also demonstrated good selectivity to glucose in the presence of interferences in human blood.
SCIENCE OF ADVANCED MATERIALS
(2022)
Article
Materials Science, Ceramics
Zhe Qiao, Shujing Li, Yuanbing Li, Zhi Tu
Summary: Barium zirconate powders were synthesized via a hydrothermal reaction using a mixture of barium hydroxide and zirconium oxychloride. The reaction time and NaOH concentration were found to significantly influence the morphology and size of the particles. Prolonged reaction times promoted phase formation and improved particle crystallinity, while increasing NaOH concentration resulted in a transformation of particle morphology and improved dispersibility, with optimal results observed at 2.0mol/L NaOH concentration.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Hui Li, Junbo Yang, Xiaohui Li, Quankun Luo, Mo Cheng, Wang Feng, Ruofan Du, Yuzhu Wang, Luying Song, Xia Wen, Yao Wen, Mengmeng Xiao, Lei Liao, Yanfeng Zhang, Jianping Shi, Jun He
Summary: This study presents an ingenious strategy for the synthesis of 4 inch long Fe-doped transition-metal dichalcogenides (TMDCs) single crystals on industry-compatible c-plane sapphire without special miscut angle. The fabricated atomically thin transistors based on these single crystals exhibit high electron mobility (approximately 146 cm(2) V-1 s(-1)) and remarkable on/off current ratio (approximately 10(9)) due to the ultralow contact resistance (approximately 489 Ωμm). This work represents a significant advancement in the synthesis and doping of wafer-scale 2D semiconductor single crystals.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qilong Wu, Yi Jia, Qian Liu, Xin Mao, Qi Guo, Xuecheng Yan, Jiongpeng Zhao, Fuchen Liu, Aijun Du, Xiangdong Yao
Summary: This study demonstrates a self-corrosion strategy to control the defect density in carbon materials, leading to enhanced oxygen reduction catalytic performance. The high-density carbon defects were found to serve as efficient active sites, contributing to improved electrocatalytic activity.
Article
Chemistry, Physical
Xiaoyu Chen, Jiawei Wan, Meng Zheng, Jin Wang, Qinghua Zhang, Lin Gu, Lirong Zheng, Xianzhu Fu, Ranbo Yu
Summary: A precise synthesis strategy is proposed to stabilize single atomic ruthenium on nickel vanadium layered double hydroxides (NiV-LDH) ultrathin nanoribbons support. The resulting NiVRu-R catalyst demonstrates superior catalytic properties for electrocatalytic hydrogen evolution reaction (HER) in alkaline media, outperforming the commercial Pt/C catalyst. The stability of NiVRu-R is maintained even after 5,000 cyclic voltammetry cycles, which is attributed to the Ru atomic sites stabilized on supports through the Ru-O-V structure.
Article
Chemistry, Multidisciplinary
Manwen Zhang, Ran Yu, Xinglin Tao, Yangyang He, Xinpan Li, Feng Tian, Xiangyu Chen, Wei Huang
Summary: Ionogels are promising materials for flexible electronics due to their continuous conductive phase, high thermal and chemical stability. However, a large amount of ionic liquid is required to get high conductivity, resulting in a sharp decline in the mechanical properties. Therefore, it is a great challenge to prepare ionogels with both high conductivity and mechanical properties, which is important for their practical applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xing Zhang, Ruyi Bi, Jiangyan Wang, Meng Zheng, Jin Wang, Ranbo Yu, Dan Wang
Summary: Hollow multishelled structure (HoMS) is a promising platform for energy storage due to its unique temporal-spatial ordering property and buffering function. In this study, a sequential sulfidation and etching approach is developed to achieve co-control over the molecular- and nano-/micro-scale structures of WS2-x HoMS. The obtained WS2-x HoMS with sulfur vacancies and expanded interlayer spacing demonstrates superior performance for sodium storage. This finding offers prospects for practical fast-charging, high-energy, and long-cycling sodium storage.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Dan Mao, Zhen Zhang, Mei Yang, Zumin Wang, Ranbo Yu, Dan Wang
Summary: Researchers constructed BaTiO3/TiO2@polypyrrole (PPy) composites with hollow multishelled structure (HoMS) to enhance the electromagnetic wave absorbing properties of BaTiO3-based absorbing material. BaTiO3/TiO2 HoMSs were prepared using TiO2 HoMSs as a template. FeCl3 was then introduced to initiate the oxidative polymerization of pyrrole monomer, successfully forming BaTiO3/TiO2@PPy HoMSs. The electromagnetic wave absorbing properties of BaTiO3/TiO2 HoMSs and BaTiO3/TiO2@PPy HoMSs with different shell numbers were investigated. The results show that BaTiO3/TiO2@PPy HoMSs exhibit improved microwave absorption, with tripled-shelled BaTiO3/TiO2@PPy HoMS having the most excellent absorbing performance.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yingjian Ma, Ruyi Bi, Mei Yang, Peng Wei, Jian Qi, Jiangyan Wang, Ranbo Yu, Dan Wang
Summary: Hollow multishelled structure (HoMS) ZnO is designed as fillers for polyethylene oxide (PEO)-based composite polymer electrolyte (CPE). The strong chemical and mechanical interaction between PEO and ZnO HoMS enhances the ionic conductivity and stability.
JOURNAL OF NANOPARTICLE RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Hongzhe Xu, Yun Han, Qilong Wu, Yi Jia, Qin Li, Xuecheng Yan, Xiangdong Yao
Summary: Proton exchange membrane water electrolyzers (PEMWEs) have gained significant attention for their fast response, high proton conductivity, and low ohmic losses and gas crossover rate. However, developing high-performance and durable electrocatalysts in an acidic environment remains a challenge for the large-scale commercialization of PEMWEs. Iridium-based catalysts (IBCs) show promise for the oxygen evolution reaction (OER) due to their stability in acid media. This article provides a critical overview of different synthesis and modulation strategies of IBCs, considering their electronic structures, charge redistribution, activity, and stability. The achievements and future perspectives of PEMWEs are also discussed to inspire rational design of IBCs for practical applications.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zumin Wang, Cheng Meng, Ji Wang, Zhifan Song, Ranbo Yu
Summary: A self-supported V doped CoP nanowire catalyst was prepared by regulating both geometric and electronic structure, which exhibited large surface area, abundant active sites exposure, low charge transfer resistance, and favorable H* adsorption. The catalyst showed superior performance in alkaline hydrogen evolution, with a low potential requirement and a high Tafel slope, surpassing commercial Pt/C catalysts. Moreover, the catalyst demonstrated excellent durability, maintaining activity unchanged for over 16 hours. This strategy provides a new avenue for the exploration of efficient electrocatalysts.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chengguang Lang, Wenbin Jiang, Cheng-Jie Yang, Hao Zhong, Peirong Chen, Qilong Wu, Xuecheng Yan, Chung-Li Dong, Yue Lin, Liuzhang Ouyang, Yi Jia, Xiangdong Yao
Summary: A facile and eco-friendly method of high-energy mechanochemical ball milling is developed to prepare Ru-1@D-MoS2 catalysts, which exhibit superb alkaline hydrogen evolution enhancement. The single atomic Ru doping induces the generation of S vacancies, leading to an asymmetrical distribution of electrons, which contributes to the excellent performance of Ru-1@D-MoS2.
Article
Engineering, Biomedical
Guocheng Ding, Yangyang He, Yuanyuan Shi, Maihemuti Maimaitimin, Xin Zhang, Hongjie Huang, Wei Huang, Ran Yu, Jianquan Wang
Summary: This study developed a strong hydrogel with a biomimetic microstructure, which was prepared using digital light processing 3D printing technology and showed excellent mechanical properties, low swelling, and sustained biphasic drug release ability. These hydrogel scaffolds were used as meniscal and labral replacements in a porcine model, demonstrating great potential for preventing secondary osteoarthritis.
ADVANCED HEALTHCARE MATERIALS
(2023)
Review
Chemistry, Physical
Zhifan Song, Zumin Wang, Ranbo Yu
Summary: This article introduces the basic knowledge and information of 2D transition metal dichalcogenides (2D TMDs) as electrode materials for supercapacitors (SCs), summarizes recent advances in strategies focusing on doping, structure, composition, phase, configuration, and electrolyte to improve their supercapacitor performance, and proposes future perspectives.
Article
Computer Science, Interdisciplinary Applications
Yilei He, Yanze Wei, Zumin Wang, Xu Zhou, Ranbo Yu
Summary: N-doping is an effective technique for enhancing the utilization of TiO2 under visible light. This study explores the application of N-doping in TiO2(B), a metastable polymorph renowned for energy materials, and compares the electronic and optical properties of pure and N-doped TiO2(B) through DFT calculations.
ENGINEERING REPORTS
(2023)
Review
Chemistry, Physical
Yun Han, Xuecheng Yan, Qilong Wu, Hongzhe Xu, Qin Li, Aijun Du, Xiangdong Yao
Summary: In the past decades, significant progress has been made in the exploration of electrocatalysts with high activity, long durability, and low cost. Among them, defective graphene (DG)-based catalysts are considered as potential replacements for precious metal-based electrocatalysts. This overview highlights recent advancements in four types of DG-based catalysts: 1) heteroatoms-doped graphene; 2) intrinsic DG (vacancy and topological defect); 3) nonmetal atoms or/and metal species-modified intrinsic DG (heterogeneous species and intrinsic defects co-tuned DG); and 4) DG-based van der Waals-type multilayered heterostructures. The synergistic effects between different defects and the catalytic mechanism derived from defects are discussed, providing insights for the rational design and fabrication of high-performance electrocatalysts for practical energy-related applications. The challenges and future research directions on defect engineering in noble metal-free materials for electrocatalysis are proposed.
Article
Chemistry, Physical
Xiaohao Ji, Xiaoyu Chen, Lijuan Zhang, Cheng Meng, Yilei He, Xing Zhang, Zumin Wang, Ranbo Yu
Summary: Effective and robust electrocatalysts can be achieved through the design of innovative materials and unique structures. This study presents a flakelike cobalt phosphide-based catalyst supported on NiCo2O4 nanorods array, grown in-situ on a nickel foam current collector. The optimized microstructure and electronic structure of the catalyst contribute to its abundant electrochemical surface area, favorable surface wettability, excellent electron transport, and tailored d band center. The resulting N-Co2P/NiCo2O4/NF electrode exhibits impressive hydrogen evolution reaction activity with low overpotentials and superior durability in alkaline medium, indicating its potential for practical electrocatalysis applications.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Ruyi Bi, Jilu Zhao, Jiangyan Wang, Ranbo Yu, Dan Wang
Summary: In this study, CoFe2O4 hollow multishelled structure (HoMS) material was synthesized using a sequential templating approach and its morphology and structure were characterized. The relationship between the shell structure and battery performance was also investigated. It was found that the double-shelled core CoFe2O4 HoMS exhibited the highest discharge capacity, excellent rate performance, and cycle stability. The exceptional electrochemical performance can be attributed to its unique structural advantages and optimal cavity volume occupancy, which enable it to maintain good structure stability and beneficial electrochemical properties during repeated cycling.
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
(2023)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.
