The Role of Defect Sites in Nanomaterials for Electrocatalytic Energy Conversion

By Y. Jia, Kun Jiang, Haotian Wang, X. Yao. Chem, 2019

351 citations recorded by the source corpus.

The development of advanced catalysts for efficient electrochemical energy conversion technologies to alleviate the reliance on fossil fuels has attracted considerable interest in the last decades. Insight into the roles of reactive sites in nanomaterials is significant for understanding and implementing the design principles of nanocatalysts. Recently, the essential role of defects, including vacancies, reconstructed defects, and doped non-metal (or metal)-defect-based motifs, have been widely demonstrated to promote the diverse electrochemical processes (e.g., O2 [or CO2] reduction reactions and H2 [or O2] evolution reactions). Nevertheless, the in-depth exploration of the underlying defect electrocatalytic mechanism is still in its infancy. This review summarizes the state-of-the-art defect engineering strategies for designing highly efficient electrochemical nanocatalysts with special emphasis on the correlation between defect structures and electrocatalytic properties. Finally, some perspectives on the challenges and future research directions in this promising area are presented.

Subfields: Electrical and Electronic Engineering, Electrochemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/ab86ec97983462ef94af7f9a41412af7d4f20cfa

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In Electrical and Electronic Engineering

1. Jiacheng Wang
2. Yao Zhou
3. Qian Liu
4. Ruguang Ma
5. Minghui Yang

In Renewable Energy, Sustainability and the Environment

1. Gaoxin Lin
2. Jiacheng Wang
3. Yao Zhou
4. Tao Zhang
5. Qian Liu
6. Ruguang Ma
7. G. Shan
8. Minghui Yang

Citations in the corpus

• A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts (2019, background): “Both experimental and theoretical data elucidated that the defects in carbon materials are active sites, because they can modulate the local electron distribution and perturb the physicochemical property of graphene surface, such as adjusting the specific surface area and hydrophobicity.(104) Fig.”