In Situ Synthesized Cobalt Nanocrystal via Bipyridine Ligand Cobaltic Borate Annealing Method for High‐performance Zinc‐air Battery
A "butterfly-like" metal templated borate, [Co<sub>2</sub>(bpy)<sub>4</sub>(C<sub>2</sub>O<sub>4</sub>)]·[B<sub>5</sub>O<sub>6</sub>(OH)<sub>4</sub>]<sub>2</sub>·py<sub>2</sub> (1, bpy = 2,2'-bipyridine, py = pyridine), was synthesized via a solvothermal method. For the first time, the coordination of Co<sup>2+</sup> ions with (C<sub>2</sub>O<sub>4</sub>)<sup>2-</sup> ions in borate systems was observed. Notably, upon pyrolyzing precursor compound 1, high-resolution transmission electron microscopy (HRTEM) revealed a catalyst with a carbon-supported Co nanocrystal structure, which significantly enhanced the oxygen reduction reaction (ORR) performance, achieving a half-wave potential comparable to that of Pt/C. More importantly, the catalyst outperformed Pt/C when applied in a zinc-air battery.
Authors
- Chun‐Yang Pan (ORCID: https://orcid.org/0000-0002-6025-7815)
- An‐Na Chen
- Hao Liu (ORCID: https://orcid.org/0000-0003-0266-9472)
- Lei Liu (ORCID: https://orcid.org/0000-0002-8944-1499)
- Huang Xiangyu (ORCID: https://orcid.org/0000-0003-2052-308X)
Institutions
- Guangdong University of Technology (CN)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2025-05-03
- DOI
- https://doi.org/10.1002/chem.202500584
- Citations
- 2
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Natural Science Foundation of China