Unconventional and Powerful Ion Sources for Solid-State Ion Exchange, Cu2SO4 and Cu3PO4: Exemplified by Synthesis of Metastable β-CuGaO2 from Stable β-LiGaO2
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866929690673938432 |
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| author | Suzuki, Issei Washizu, Kako Motai, Daiki Kita, Masao Omata, Takahisa |
| author_facet | Suzuki, Issei Washizu, Kako Motai, Daiki Kita, Masao Omata, Takahisa |
| contents | This study introduces a new method for synthesizing Cu+-containing metastable phases through ion exchange. Traditionally, CuCl has been used as a Cu+ ion source for solid-state ion exchanges; however, its thermodynamic driving force is often insufficient for complete ion exchange with Li+-containing precursors. First-principles calculations have identified Cu2SO4 and Cu3PO4 as more powerful alternatives, providing a higher driving force than CuCl. It has been experimentally demon-strated that these ion sources can open up new reaction pathways through experimental ion exchanges, such as from β-LiGaO2 to β-CuGaO2, which were previously unattainable. An important perspective provided by this study is that the poten-tial of such basic compounds to act as powerful ion sources has been overlooked, and that they were identified through straightforward first-principles calculations. This work presents the initial strategic design of an ion exchange reaction by exploring suitable ion sources, thereby expanding the potential for synthesizing metastable materials. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_05310 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unconventional and Powerful Ion Sources for Solid-State Ion Exchange, Cu2SO4 and Cu3PO4: Exemplified by Synthesis of Metastable β-CuGaO2 from Stable β-LiGaO2 Suzuki, Issei Washizu, Kako Motai, Daiki Kita, Masao Omata, Takahisa Materials Science Chemical Physics This study introduces a new method for synthesizing Cu+-containing metastable phases through ion exchange. Traditionally, CuCl has been used as a Cu+ ion source for solid-state ion exchanges; however, its thermodynamic driving force is often insufficient for complete ion exchange with Li+-containing precursors. First-principles calculations have identified Cu2SO4 and Cu3PO4 as more powerful alternatives, providing a higher driving force than CuCl. It has been experimentally demon-strated that these ion sources can open up new reaction pathways through experimental ion exchanges, such as from β-LiGaO2 to β-CuGaO2, which were previously unattainable. An important perspective provided by this study is that the poten-tial of such basic compounds to act as powerful ion sources has been overlooked, and that they were identified through straightforward first-principles calculations. This work presents the initial strategic design of an ion exchange reaction by exploring suitable ion sources, thereby expanding the potential for synthesizing metastable materials. |
| title | Unconventional and Powerful Ion Sources for Solid-State Ion Exchange, Cu2SO4 and Cu3PO4: Exemplified by Synthesis of Metastable β-CuGaO2 from Stable β-LiGaO2 |
| topic | Materials Science Chemical Physics |
| url | https://arxiv.org/abs/2411.05310 |