科研之友
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摘要
Conjugated porous polymers (CPPs) possess great potential in the energy storage aspect. In this work, a boron-dipyrromethene (BODIPY)-conjugated porous polymer (CPP-1) is achieved by a traditional organic synthesis route. Following this, a carbonization process is employed to obtain the carbonized porous material (CPP-1-C). The two as-prepared samples, which are characterized by doping with heteroatoms and their porous structure, are able to shorten the lithium-ion pathways and improve the lithium-ion storage property. Then, CPP-1 and CPP-1-C are applied as anode materials in lithium-ion batteries. As expected, long-term cyclic performances at 0.1 and 1 A g(-1) are achieved with maintaining the specific capacity at 273.2 mA h g(-1) after 100 cycles at 0.1 A g(-1) and 250.8 mA h g(-1) after 300 cycles at 1 A g(-1). The carbonized sample exhibits a better electrochemical performance with a reversible specific capacity of 675 mA h g(-1) at 0.2 A g(-1). Moreover, the capacity is still stabilized at 437 mA h g(-1) after 500 cycles at 0.5 A g(-1). These results demonstrate that BODIPY-based CPPs are capable of being exploited as promising candidates for electrode materials in the fields of energy storage and conversion.
- 出版日期2018-7
- 单位中南大学
