A Cobalt Borate Built by {B <sub>12</sub> } and {Co <sub>3</sub> } Clusters for Photothermal Conversion
A novel cobalt dodecaborate {Co<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>}<sub>2</sub>B<sub>12</sub>O<sub>24</sub> (<b>1</b>) was first made under solvothermal conditions. It is a 3D neutral framework built by the sandwiched {B<sub>12</sub>O<sub>24</sub>}@{Co<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>}<sub>2</sub> cluster, in which a crown-like B<sub>12</sub>O<sub>24</sub> ({B<sub>12</sub>}) cluster is capped by two Co<sub>3</sub>O<sub>6</sub>(H<sub>2</sub>O)<sub>3</sub> ({Co<sub>3</sub>}) units. The trinuclear {Co<sub>3</sub>} cluster is first found in borates. Due to the aggregation of Co<sup>2+</sup> with a d-d transition, <b>1</b> has a broad absorption band from visible to near-infrared (NIR) regions. Photothermal conversion tests reveal that <b>1</b> exhibits promising photothermal conversion efficiency (27.3%) under the irradiation of a 1064 nm NIR light, furthermore with excellent cyclic stability. This work represents the first investigation of photothermal conversion performances in crystalline borates, highlighting the potential of borate-based materials for photothermal conversion applications.
Authors
- Guo‐Yu Yang (ORCID: https://orcid.org/0000-0002-0911-2805)
- Chong‐An Chen (ORCID: https://orcid.org/0009-0003-6014-8525)
- Zhenwen Wang (ORCID: https://orcid.org/0000-0001-9551-7974)
Institutions
- Beijing Institute of Technology (CN)
- Innovation Cluster (Canada) (CA)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-11-21
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c04818
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00