The reaction between a two-coordinate Co(ii) diaryl complex and "GaI" affords 2,6-Pmp2C6H3CoGa3I5, in a new geometry for a heavier group 13-transition metal cluster. Experimental and computational investigations show that this compound is best described as a nido metalla-group 13 cluster.
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http://dx.doi.org/10.1039/d0cc03559a | DOI Listing |
Adv Mater
December 2024
Institute of Materials Research, Center of Double Helix, Guangdong Provincial Key Laboratory of Thermal Management Engineering and Materials, Shenzhen Key Laboratory of Advanced Layered Materials for Value-added Applications, Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China.
Liquid exfoliation is a scalable and effective method for synthesizing 2D nanosheets (NSs) but often induces contamination and defects. Here, liquid metal gallium (Ga) is used to exfoliate bulk layered materials into 2D NSs at near room temperature, utilizing the liquid surface tension and Ga intercalation to disrupt Van der Waals (vdW) forces. In addition, the process can transform the 2H-phase of transition metal dichalcogenides into the 1T'-phase under ambient conditions.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
Gallium (Ga) with a low melting point can serve as a unique metallic solvent in the synthesis of intermetallic compounds (IMCs). The negative formation enthalpy of transition metal-Ga IMCs endows them with high catalytic stability. Meanwhile, their tunable crystal structures offer the possibility to tailor the configurations of active sites to meet the requirements for specific catalytic applications.
View Article and Find Full Text PDFACS Nano
February 2024
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 585 He Shuo Road, Shanghai 201899, China.
Fluoride-based solid electrolytes (SEs) have emerged as a promising component for high-energy-density rechargeable solid-state batteries (SSBs) in view of their wide electrochemical window, high air stability, and interface compatibility, but they still face the challenge of low ion conductivity and the lack of a desired structure for sodium metal SSBs. Here, we report a sodium-rich heterostructure fluoride SE, NaGaF-GaO-NaCl (NGFOC-G), synthesized via in situ oxidation of liquid metal gallium and in situ chlorination using low-melting GaCl. The distinctive features of NGFOC-G include single-crystal NaGaF domains within an open-framework structure, composite interface decoration of GaO and NaCl with a concentration gradient, exceptional air stability, and high electrochemical oxidation stability.
View Article and Find Full Text PDFMolecules
February 2023
Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1504 Sofia, Bulgaria.
Since the accidental discovery of the anticancer properties of cisplatin more than half a century ago, significant efforts by the broad scientific community have been and are currently being invested into the search for metal complexes with antitumor activity. Coordination compounds of transition metals such as platinum (Pt), ruthenium (Ru) and gold (Au) have proven their effectiveness as diagnostic and/or antiproliferative agents. In recent years, experimental work on the potential applications of elements including lanthanum (La) and the post-transition metal gallium (Ga) in the field of oncology has been gaining traction.
View Article and Find Full Text PDFEnviron Sci Technol
February 2022
SDU Life Cycle Engineering, Department of Green Technology, University of Southern Denmark, 5230 Odense, Denmark.
The potential constraints of critical material supply for the global green transition have raised increasing concerns in recent years. As an important "green minor metal", gallium faces such a potential supply risk for two reasons: it is a byproduct of aluminum production, and the forthcoming end of primary aluminum production boom in China, currently the main global aluminum producer, may bring substantial impacts on the global gallium supply. Here, we investigated this byproduct and host metal linkage using a system dynamics based integrated model and characterized the gallium-aluminum dynamics in a green transition up to 2050 across five world regions (i.
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