Chemical Reviews· 2018Q1· Review
Understanding Catalytic Activity Trends in the Oxygen Reduction Reaction
- 2,722citations
- Q1SCImago
- 2018year
Short summary
Theory reveals that unfavorable scaling relationships limit intrinsic ORR activity in common catalysts, necessitating alternative design strategies.
AI-generated from the title and abstract; the full text is not read.
Key points
- Intrinsic ORR activity of common catalysts has stagnated over the past decade.
- Unfavorable scaling relationships for binding energies of reaction intermediates limit catalyst performance.
- Theory and descriptor-based approaches are crucial for understanding ORR mechanisms and identifying limitations.
- Alternative strategies are needed to design and discover new, more promising ORR materials.
AI-generated from the title and abstract; the full text is not read.
Abstract
Despite the dedicated search for novel catalysts for fuel cell applications, the intrinsic oxygen reduction reaction (ORR) activity of materials has not improved significantly over the past decade. Here, we review the role of theory in understanding the ORR mechanism and highlight the descriptor-based approaches that have been used to identify catalysts with increased activity. Specifically, by showing that the performance of the commonly studied materials (e.g., metals, alloys, carbons, etc.) is limited by unfavorable scaling relationships (for binding energies of reaction intermediates), we present a number of alternative strategies that may lead to the design and discovery of more promising materials for ORR.
The authors' abstract, as published at the source. Chemical Reviews, 2018 · DOI ↗
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Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy