Document Type
Article
Publication Date
6-25-2025
Publication Title
Small Structures
Issue
2500238
Pages
1-11
Publisher Name
Wiley-VCH
Abstract
Copper boron selenides represent a previously unexplored class of materials with tetragonal structural symmetries and bonding chemistries potentially relevant to lithium-ion conduction. In this work, the first colloidal synthesis of nanocrystalline copper boron selenides is reported, enabling access to nanocrystals with reaction times shown as the synthetic knob to control composition and morphology. Copper boron selenide nanocrystals are synthetically designed as precursors for lithiation reactions aimed at probing structural evolution and ionic mobility pathways toward superionic conductors applicable as solid electrolytes in lithium-ion batteries. Postsynthetic lithiation studies under ambient conditions reveal a series of phase transformations and morphological changes, which are characterized using a combination of X-ray diffraction and high-resolution transmission electron microscopy analysis. Thermometric and differential scanning calorimetry analyses on both copper boron selenide nanocrystals and their lithiated counterparts further uncover the associated signatures of superionic phase changes with lithium incorporation, suggesting dynamic structural rearrangements, and potential onset of fast ion transport. This study highlights colloidal synthesis as a powerful route to explore new composition spaces in complex chalcogenides and establishes copper boron selenides as a platform for investigating structure–transport relationships in emerging solid-state electrolyte chemistries.
Recommended Citation
Xu, Yunhao; Powar, Niket; Zervos, Kelly; Campbell, Isabella; Choudhary, Simran; Al-Khaled, Layan; and Banerjee, Progna. Colloidal Hot-Injection Synthesis of CuBSe2 Nanocrystals: Tetragonal Chalcogenide Templates for Superionic Lithiation Pathways. Small Structures, , 2500238: 1-11, 2025. Retrieved from Loyola eCommons, Chemistry: Faculty Publications and Other Works, http://dx.doi.org/10.1002/sstr.202500238
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Statement
© The Author(s), 2025.
Included in
Inorganic Chemistry Commons, Materials Chemistry Commons, Nanoscience and Nanotechnology Commons
Comments
Author Posting © The Author(s), 2025. This article is posted here by permission of Wiley-VCH for personal use and redistribution. This article was published open access in Small Structures, Iss. 2500238 (June 25, 2025), https://doi.org/10.1002/sstr.202500238.