Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 14, Issue 5, Pages 2789-2808Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ee00306b
Keywords
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Funding
- National Natural Science Foundation of China [52073137, 21704038, 51763018]
- NSFC-DFG Joint Research Project [51761135114]
- Natural Science Foundation of Jiangxi Province [20192BCB23001, 20202ZDB01009]
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High-performance electrocatalysts are essential for sustainable energy technologies, and pyrolysis-free polymers show promising catalytic performances due to their clear structure and well-preserved active sites, serving as a guideline for preparing practical value catalysts.
High-performance electrocatalysts play a vital role in various sustainable energy conversion and storage technologies. Although enormous carbon-based materials have been developed and exhibited efficient electrocatalytic ability comparable to precious metal catalysts, the obtained blurry structure seriously hampered the understanding of the nature of electrocatalysis. Pyrolysis-free polymers are a competitive type of materials owing to their high-density uniform building units, tailorable chemical structure and diverse topology structure, which demonstrate promising catalytic performances for multifarious important reactions. In particular, the absence of a pyrolysis process promises well-preserved active sites, laying a solid foundation for mechanism research. In this review, the recent developments of pyrolysis-free polymers including porous organic polymers, metal organic frameworks, and linear conjugated polymers for oxygen electrocatalysis are summarized. The engineering strategies and their influence on boosting the electrocatalytic performance are concluded, particularly the impact of electronic structure engineering and hybrid synergistic effect. Finally, we further discuss current challenges and future directions for maximizing the advantages of polymer-based electrocatalysts without pyrolysis. This review aims to highlight the importance of pyrolysis-free polymer-based electrocatalysts and their potential to become the guideline for preparing high practical value catalysts by virtue of their clear structure-activity relationship.
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