Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 1, Pages 152-157Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b02039
Keywords
bifunctional electrocatalyst; iron; oxygen reduction reaction; oxygen evolution reaction; renewable energy
Funding
- Estonian Research Council [PUT1290, PSG250]
- TalTech Young Investigator Grant B62
- Estonian Ministry for Education and Research [IUT20-16, IUT2-24, IUT34-14]
- Centre of Excellence TK141: Advanced materials and high-technology devices for energy recuperation systems from the EU ERDF program
- COST Actions [CA15135, CA18224]
- Estonian Smart Specialization PhD Fellowship
- [TK141]
- [IUT-T4]
- [PUT1689]
- [IUT19-4]
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Preparation of electrocatalysts often relies on the use of multiple starting materials, with examples arising from a single precursor being less common. We have surveyed a series of heterobivalent scaffolds to identify an iron/benzimidazole-based metal-organic framework as a uniform starting material. By merging the catechol and imidazole units together, we get a direct entry into a highly efficient bifunctional oxygen electrocatalyst, which alleviates the need for dopants and modifying conditions. We demonstrate that by fine-tuning the chemical nature of an organic linker, one is able to modulate the electrochemical properties of a single precursor-derived electrocatalyst material.
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