结构化学最新文献_第2页

Synthesis methodologies of conductive 2D conjugated metal-organic frameworks

IF 5.9 4区化学

结构化学 Pub Date : 2025-04-01 DOI: 10.1016/j.cjsc.2024.100459

Jinwei Zhang, Lipiao Bao, Xing Lu

引用次数: 0

Face-sharing strategy helps achieve lithium superionic conductivity in face-centred cubic oxides

IF 5.9 4区化学

结构化学 Pub Date : 2025-04-01 DOI: 10.1016/j.cjsc.2024.100449

Yepei Li, Kun Lin

引用次数: 0

High thermal conductivity in Ga2TeO6 crystals: Synergistic effects of rigid polyhedral frameworks and stereochemically inert cations

IF 5.9 4区化学

结构化学 Pub Date : 2025-04-01 DOI: 10.1016/j.cjsc.2025.100544

Ziyi Liu, Feifei Guo, Tingting Cao, Youxuan Sun, Xutang Tao, Zeliang Gao

{"title":"High thermal conductivity in Ga2TeO6 crystals: Synergistic effects of rigid polyhedral frameworks and stereochemically inert cations","authors":"Ziyi Liu, Feifei Guo, Tingting Cao, Youxuan Sun, Xutang Tao, Zeliang Gao","doi":"10.1016/j.cjsc.2025.100544","DOIUrl":"10.1016/j.cjsc.2025.100544","url":null,"abstract":"<div><div>The investigation of thermal transport properties of materials has become increasingly important in technological applications, including thermal management and energy conversion. Recently, ultrahigh or low thermal conductivity has been reported in nitride, boride, and chalcogenide by different strategies. However, the strategy to design oxide crystals with unique thermal properties is also a challenge. In this work, a new ternary oxide crystal Ga<sub>2</sub>TeO<sub>6</sub> is designed and expected to show high thermal conductivity due to its lone pairs-free octahedra connected along the <em>c</em>-axis by sharing edges. The thermal conductivities of Ga<sub>2</sub>TeO<sub>6</sub> crystal are determined to be 19.2 and 23.9 W m<sup>−1</sup> K<sup>−1</sup> along the <em>a</em>- and <em>c</em>-axis directions at 323 K, respectively, which are significantly higher than those of most reported oxide crystals. First-principles calculations and crystal structure analyses reveal that the Ga<sub>2</sub>TeO<sub>6</sub> crystal shows high sound velocity and weak lattice anharmonicity due to lone pairs-free octahedra and highly symmetric group arrangement. The results suggest that much attention must be paid to the polyhedron with lone pairs and its arrangement in materials design to balance the functions and thermal properties.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 4","pages":"Article 100544"},"PeriodicalIF":5.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nano-thermometry in photothermal catalysis

IF 5.9 4区化学

结构化学 Pub Date : 2025-04-01 DOI: 10.1016/j.cjsc.2024.100456

Lin Zhang , Chaoran Li , Thongthai Witoon , Xingda An , Le He

引用次数: 0

Highly efficient separation of high-valent actinide ions from lanthanides via fractional crystallization

IF 5.9 4区化学

结构化学 Pub Date : 2025-04-01 DOI: 10.1016/j.cjsc.2025.100562

Yarui Li , Huangjie Lu , Yingzhe Du , Jie Qiu , Peng Lin , Jian Lin

{"title":"Highly efficient separation of high-valent actinide ions from lanthanides via fractional crystallization","authors":"Yarui Li , Huangjie Lu , Yingzhe Du , Jie Qiu , Peng Lin , Jian Lin","doi":"10.1016/j.cjsc.2025.100562","DOIUrl":"10.1016/j.cjsc.2025.100562","url":null,"abstract":"<div><div>Partitioning of actinides from lanthanides is pivotal for advancing nuclear waste management and sustaining nuclear energy development, yet it remains a formidable challenge due to the intricate chemical behaviors of these f-block elements. In this study, we introduce 3,6-di-2-pyridyl-1,2,4,5-tetrazine (L1), whose hydrolysis product of pyridine-2-carbox-aldehyde (pyridine-2-carbonyl)-hydrazone (L2) can fractionally crystallize U(VI) ions over Ln(III) cations with high selectivity and efficiency. Through hydrolysis-induced C–N bond cleavage, L2 acts as a tetradentate ligand, coordinating with two UO<sub>2</sub><sup>2+</sup> ions in a planar arrangement to form a zero-dimensional cluster, [(UO<sub>2</sub>)<sub>2</sub>(<em>μ</em><sub>3</sub>-O)(L2)(CH<sub>3</sub>COO)]·DMF (<strong>U-L2</strong>), while lanthanide ions (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Yb, and Lu) remain in solution due to their inability to achieve similar coordination. This selective crystallization strategy yields exceptional separation factors (SFs) between U(VI) and Ln(III), with a value of 756276 between U(VI) and Sm(III), the highest reported to date. Furthermore, this fractional crystallization separation process can be achieved under mild ambient conditions with high SFs, enabling the development of a rapid, safe and energy-efficient strategy for once-through separation of high oxidation state actinides from lanthanides.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 4","pages":"Article 100562"},"PeriodicalIF":5.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review of plasma treatment on nano-microstructure of electrochemical water splitting catalysts

IF 5.9 4区化学

结构化学 Pub Date : 2025-03-01 DOI: 10.1016/j.cjsc.2025.100520

Tianli Hui, Tao Zheng, Xiaoluo Cheng, Tonghui Li, Rui Zhang, Xianghai Meng, Haiyan Liu, Zhichang Liu, Chunming Xu

{"title":"A review of plasma treatment on nano-microstructure of electrochemical water splitting catalysts","authors":"Tianli Hui, Tao Zheng, Xiaoluo Cheng, Tonghui Li, Rui Zhang, Xianghai Meng, Haiyan Liu, Zhichang Liu, Chunming Xu","doi":"10.1016/j.cjsc.2025.100520","DOIUrl":"10.1016/j.cjsc.2025.100520","url":null,"abstract":"<div><div>Hydrogen is a critical renewable energy source in the energy transition. However, water electrolysis, which is the primary technique for achieving large-scale and low-carbon hydrogen production, still suffers from high production costs and energy consumption. The key is to develop highly efficient electrochemical water splitting catalysts. In recent years, the preparation of electrocatalysts via plasma treatment has gained recognition for its rapid, eco-friendly, and controllable properties, especially in the optimization of nano-microstructure. This review comprehensively summarizes the impact of plasma treatment on the nano-microstructure of water electrolysis catalysts, encompassing dispersion enhancement, morphology modulation, surface functionalization, defect construction, and element doping. These impacts on the nano-microstructure increase the surface area, modify the pore structure, introduce active sites, and regulate the electronic environment, thereby promoting the water splitting performance of electrocatalysts. Finally, the remaining challenges and potential opportunities are discussed for the future development of plasma treatment. This review would be a valuable reference for plasma-assisted electrocatalyst synthesis and mechanism understanding in plasma impact on nano-microstructure.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 3","pages":"Article 100520"},"PeriodicalIF":5.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High stretchability and toughness of liquid metal reinforced conductive biocompatible hydrogels for flexible strain sensors

IF 5.9 4区化学

结构化学 Pub Date : 2025-03-01 DOI: 10.1016/j.cjsc.2025.100518

Mengchen Liu , Yufei Zhang , Yi Xiao , Yang Wei , Meichen Bi , Huaide Jiang , Yan Yu , Shenghong Zhong

引用次数: 0

Continuous synthesis of ammonia

IF 5.9 4区化学

结构化学 Pub Date : 2025-03-01 DOI: 10.1016/j.cjsc.2024.100437

Hang Wang, Qi Wang, Chuan-De Wu

引用次数: 0

Stable Eu(III)-based metal-organic framework for fluorescence sensing of benzaldehyde and its analogues

IF 5.9 4区化学

结构化学 Pub Date : 2025-03-01 DOI: 10.1016/j.cjsc.2024.100445

Xin Chen , Meng Zhao , Yan-Yuan Jia

引用次数: 0

A metal azolate framework with small aperture for highly efficient ternary benzene/cyclohexene/cyclohexane separation 用于高效三元苯/环己烯/环己烷分离的小孔径叠氮金属框架

IF 5.9 4区化学

结构化学 Pub Date : 2025-03-01 DOI: 10.1016/j.cjsc.2025.100540

Xi Feng , Ding-Yi Hu , Zi-Jun Liang, Mu-Yang Zhou, Zhi-Shuo Wang, Wen-Yu Su, Rui-Biao Lin, Dong-Dong Zhou, Jie-Peng Zhang

{"title":"A metal azolate framework with small aperture for highly efficient ternary benzene/cyclohexene/cyclohexane separation","authors":"Xi Feng , Ding-Yi Hu , Zi-Jun Liang, Mu-Yang Zhou, Zhi-Shuo Wang, Wen-Yu Su, Rui-Biao Lin, Dong-Dong Zhou, Jie-Peng Zhang","doi":"10.1016/j.cjsc.2025.100540","DOIUrl":"10.1016/j.cjsc.2025.100540","url":null,"abstract":"<div><div>Separation of ternary C<sub>6</sub> cyclic hydrocarbons, i.e., benzene/cyclohexene/cyclohexane mixtures, is crucial but challenging in the petrochemical industry due to their extremely similar molecular sizes and physical properties. Here, we design and synthesize a new Zn-based metal azolate framework (MAF), MAF-40, with a three-dimensional (3D) honeycomb-like framework and 1D sugar-coated-berry type pore channels. By virtue of the strong coordination bonds and abundant trifluoromethyl groups embedded in the pores, MAF-40 exhibits excellent thermal stability (up to 400 °C) and acid-base stability (within a pH range of 3–11). Moreover, MAF-40 shows ultrahigh benzene selectivity (38.8) from the ternary benzene/cyclohexene/cyclohexane mixtures, attributed to the strong adsorption affinity from fluorine for benzene and markedly different guest diffusion limited by the small aperture, which are confirmed by computational simulations and infrared spectra. Thus, the results indicated that MAF-40 would be a candidate adsorbent for the separation and purification of benzene from C<sub>6</sub> cyclic hydrocarbons, and this work provides a new insight of synthesizing stable MOF materials for separating multicomponent chemical mixtures.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 3","pages":"Article 100540"},"PeriodicalIF":5.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0