What does this research mean for the field?

Immobilizing single-atom iridium on a polyimide support with an asymmetric Ir-N2O2 coordination structure creates a highly active and durable electrocatalyst for the acidic oxygen evolution reaction by lowering the thermodynamic barrier for *OOH adsorption. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to develop efficient iridium single-atom catalysts for acidic oxygen evolution and understand the impact of coordination structures.

May 28, 2026Advanced Functional Materials

Asymmetric Coordination Engineering of Conjugated Coordination Polymer Electrocatalysts for Acidic Oxygen Evolution

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Authors

LHLi Hu ZMZiwei Ma YLYunxia Liu

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Overview

Randomized trial shows enhanced oxygen evolution in electrocatalysts, indicating improved energy conversion efficiency.

Key Points

The study aims to develop efficient iridium single-atom catalysts for acidic oxygen evolution and understand the impact of coordination structures.
Developed single-atom Ir catalysts on polyimide support for OER.
Investigated two coordination structures: Ir-N2O2 and Ir-C2O2 for activity comparison.
Conducted both experimental and theoretical analyses to evaluate performance and mechanisms.
Ir-N2O2 coordination achieved a low overpotential of 198 mV at 10 mA cm−2 with no activity decay over 500 hours.
Ir-N2O2 significantly reduced the thermodynamic barrier for *OOH adsorption compared to Ir-C2O2.
Enhanced proton-electron transfer kinetics were observed at the Ir-N2O2 site due to better charge delocalization.

Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/6a17dc063fad632b0f9d8ba2 https://doi.org/10.1002/adfm.76180

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May 28, 2026Advanced Functional Materials

Asymmetric Coordination Engineering of Conjugated Coordination Polymer Electrocatalysts for Acidic Oxygen Evolution

View Full Paper

Ask AI

Bookmark

Authors

LHLi Hu ZMZiwei Ma YLYunxia Liu

Discussion

Member takes

Overview

Randomized trial shows enhanced oxygen evolution in electrocatalysts, indicating improved energy conversion efficiency.

Key Points

The study aims to develop efficient iridium single-atom catalysts for acidic oxygen evolution and understand the impact of coordination structures.
Developed single-atom Ir catalysts on polyimide support for OER.
Investigated two coordination structures: Ir-N2O2 and Ir-C2O2 for activity comparison.
Conducted both experimental and theoretical analyses to evaluate performance and mechanisms.
Ir-N2O2 coordination achieved a low overpotential of 198 mV at 10 mA cm−2 with no activity decay over 500 hours.
Ir-N2O2 significantly reduced the thermodynamic barrier for *OOH adsorption compared to Ir-C2O2.
Enhanced proton-electron transfer kinetics were observed at the Ir-N2O2 site due to better charge delocalization.

Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/6a17dc063fad632b0f9d8ba2 https://doi.org/10.1002/adfm.76180

View Full Paper

Ask AI

Bookmark