Identifying In Situ Activity and Selectivity of Oxygen Reduction Catalysts at the Subparticle Level DOI

Yufei Yao,

Hongyang Qu,

Zehui Sun

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Oxygen reduction reaction (ORR) plays a crucial role in both the chemical and energy industries. Despite substantial advancements theoretical, computational, experimental studies, identifying situ activity selectivity ORR electrocatalysis remains major challenge. Here, using suite of correlative operando scanning electrochemical probe electrochemiluminescence microscopy techniques, we establish link between morphological structure local single Au Au@Pt platelets at subparticle level. It is clearly shown that edge facets exhibit higher for 4e- compared to basal planes, whereas planes demonstrate superior 2e- relative facets. These findings deepen our understanding across different level, which offers valuable guidance rational design highly efficient electrocatalysts.

Language: Английский

Functionalized Modification of Conjugated Porous Polymers for Full Reaction Photosynthesis of H2O2 DOI Open Access

Xiaobo Luo,

Shiyuan Zhou, Zhou Sheng

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 16, 2024

Abstract Modulating the molecular structure to achieve full reaction including oxygen reduction and water oxidation is a promising strategy for efficient photosynthesis of hydrogen peroxide (H 2 O ) but remains challenge. Herein, triphenylamine naphthalimide‐based conjugated porous polymers are synthesized with photo oxidation‐reduction structures, then sulfonate (─SO 3 H) quaternary ammonium groups introduced via post‐modification produce two photocatalysts named NI‐TPA‐NI‐SO H NI‐TPA‐NI‐N, respectively. Introducing charged functional has improved hydrophilicity (O adsorption, beyond that, ─SO further stabilizes adsorbed bonding as well accelerates photogenerated carrier separation electron/proton transport that enables . Therefore, motivated by charge separation, stabilized boosted proton‐coupled electron transfer, exhibits highest light‐driven production rate among three photocatalysts, reaching 3.40 mmol g −1 h , which 4.9‐fold NI‐TPA‐NI. Remarkably, in presence ethylenediaminetetraacetic acid disodium salt, its significantly enhances 14.5 superior most reported organic best knowledge.

Language: Английский

Citations

6
Boosting Photocatalytic H2O2 Fuel Cell Performance with Conjugated Graphite-Phase Carbon Nitride Decorated by Ag Nanoparticles DOI
Fenglong Sun,

Qian Jing,

Tongda Xing

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Language: Английский

Citations

0
Zinc-air battery-H2O2 generation system: Current progress, key challenges, optimization strategies and future developments DOI
Jun‐Jie Wang, Steven Gao, Sujuan Hu

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111000 - 111000

Published: Feb. 1, 2025

Language: Английский

Citations

0
A review of two electrons oxygen reduction reaction fundamentals to produce hydrogen peroxide over various cobalt-based electrocatalysts DOI
Karimi Haqmal Ahmad Samir,

Zahidi Niaz Mohammad,

Danishyar Abdul Sattar

et al.

Materials Research Innovations, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: Feb. 26, 2025

Language: Английский

Citations

0
Identifying In Situ Activity and Selectivity of Oxygen Reduction Catalysts at the Subparticle Level DOI

Yufei Yao,

Hongyang Qu,

Zehui Sun

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Oxygen reduction reaction (ORR) plays a crucial role in both the chemical and energy industries. Despite substantial advancements theoretical, computational, experimental studies, identifying situ activity selectivity ORR electrocatalysis remains major challenge. Here, using suite of correlative operando scanning electrochemical probe electrochemiluminescence microscopy techniques, we establish link between morphological structure local single Au Au@Pt platelets at subparticle level. It is clearly shown that edge facets exhibit higher for 4e- compared to basal planes, whereas planes demonstrate superior 2e- relative facets. These findings deepen our understanding across different level, which offers valuable guidance rational design highly efficient electrocatalysts.

Language: Английский

Citations

0