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A facile solvothermal synthesis approach for chemical composition control in ternary Bi-S-I systems is reported by simply controlling the sulfide concentration. We demonstrate the application of these bismuth-based ternary mixed-anion compounds as high capacity anode materials in rechargeable batteries. Cells utilising BiSI achieved an initial capacity value of 807 mA h g, while those with BiSI/BiSI a value of 1087 mA h g in lithium-ion battery systems.
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http://dx.doi.org/10.1039/d1cc06456h | DOI Listing |
Angew Chem Int Ed Engl
September 2025
Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
Topochemical reduction of the n = 2 Ruddlesden-Popper oxide, LaSrCoRuO, yields LaSrCoRuO, a phase containing (Co/Ru)O squares which share corners to form 1D infinite double-chains. In contrast, fluorination of LaSrCoRuO yields the oxyfluoride LaSrCoRuOF, which can then be reduced to form LaSrCoRuOF. This reduced oxyfluoride is almost isoelectronic with LaSrCoRuO, but LaSrCoRuOF has a crystal structure in which the (Co/Ru)O squares are connected into 2D infinite sheets.
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August 2025
Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
Four mixed-anion materials, KBaTaSCl, RbBaTaSCl, CsBaTaSCl and KBaNbSCl were synthesized low temperature solid state synthesis at 848 K. All materials degrade upon melting to a mixture of the binary ionic salts, ACl, and ABaMS, two of which (KBaTaS and CsBaTaS) are reported here for the first time. Single crystal X-ray diffraction revealed that KBaTaSCl, RbBaTaSCl, and KBaNbSCl crystallize in the tetragonal space group 4/, adopting the CsCoCl structure type.
View Article and Find Full Text PDFJ Am Chem Soc
August 2025
Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
Mixed-anion compounds enable properties to be controlled to a greater degree by chemical substitution than single-anion compounds. LaSiSI was investigated as a host to develop phosphors based on solid solutions (La)SiSI ( = Ce, Pr, Tb, Dy, Ho; = 0-0.33) and (LaCe)SiSI ( = Tb, Dy; , = 0-0.
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August 2025
Department of Chemistry, School of Science, Institute of Science Tokyo, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
The catalytic reduction of CO into value-added chemicals has become important in recent years, and a catalyst that is efficient, nontoxic, and inexpensive is highly demanded. In particular, room still exists for exploring mixed-anion compounds as new catalysts. Here, we show that the Zn-based mixed-anion compounds Zn(OH)(NO) and Zn(OH)(NO), which were formed on the surface of AlO using Zn(NO)·6HO as the precursor, can convert CO into HCOOH with >80% selectivity in the presence of a Ru(II) photosensitizer and 1-benzyl-1,4-dihydro-nicotinamide as an electron donor under visible light ( = 460 nm).
View Article and Find Full Text PDFJ Chem Phys
July 2025
The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, District of Columbia 20015, USA.
The pursuit of novel materials with tunable properties has driven significant interest in mixed-anion compounds, such as carbon nitrides and oxynitrides. In this study, we explored the Ce-O-N-C system under pressures of 35-55 GPa and temperatures of 1500-1800 K. The introduction of oxygen into the Ce-N system resulted in the formation of a novel oxynitride, Ce4O3N4, characterized by lower-order N-N bonding compared to the triple-bonded N2 molecule.
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