The steric hindrance effect of Co porphyrins promoting two-electron oxygen reduction reaction selectivity
A new Co 5,10,15,20-tetrakis(2',6'-dipivaloyloxyphenyl)porphyrin (1) with eight ester groups in all <i>ortho</i> and <i>ortho</i>' positions of phenyl groups was designed, which displayed significantly improved 2e oxygen reduction reaction (ORR) selectivity compared with a 5,10,15,20-tetrakis(<i>para</i>-dipivaloyloxyphenyl) porphyrin (2) without large steric groups. This work is significant to reveal the steric hindrance effect of metal porphyrins on electrocatalytic ORR selectivity.
Authors
- Zequan Zeng (ORCID: https://orcid.org/0000-0001-9156-6242)
- Zuozhong Liang (ORCID: https://orcid.org/0000-0003-3897-0750)
- Rui Cao (ORCID: https://orcid.org/0000-0002-1821-9583)
- Haonan Qin (ORCID: https://orcid.org/0000-0002-1272-858X)
- Jieling Zhang
- Xinyue Li (ORCID: https://orcid.org/0000-0003-1972-9021)
- Yonghong Mou
- Rong Zhang (ORCID: https://orcid.org/0000-0003-4888-4514)
Institutions
- Chinese Academy of Sciences (CN)
- Institute of Coal Chemistry (CN)
- Shaanxi Normal University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2024-12-19
- DOI
- https://doi.org/10.1039/d4cc06012a
- Citations
- 9
- Primary Topic
- Porphyrin and Phthalocyanine Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 1.05
Funders
- National Natural Science Foundation of China
- National Key Laboratory Foundation of China
- Fundamental Research Funds for the Central Universities