Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 5, Issue 6, Pages 2261-2268Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am400206r
Keywords
carbon; macroporous materials; structure-property relationships; supercapacitors; template-free approaches
Funding
- NSFC [21125521]
- National Basic Research Program of China (973 Program) [2010CB933600]
- Hundred Talents Project of the Chinese Academy of Science
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The urgent need for sustainable development has forced material scientists to explore novel materials for next-generation energy storage devices through a green and facile strategy. In this context, yeast, which is a large group of single cell fungi widely distributed in nature environments, will be an ideal candidate for developing effective electrode materials with fascinating structures for high-performance supercapacitors. With this in mind, herein, we present the first example of creating three-dimensional (3D) interpenetrating macroporous carbon materials via a template-free method, using the green, renewable, and widespread yeast cells as the precursors. Remarkably, when the as-prepared materials are used as the electrode materials for supercapacitors, they exhibit outstanding performance with high specific capacitance of 330 F g(-1) at a current density of 1 A g(-1), and good stability, even after 1000 charge/discharge cycles. The approach developed in this work provides a new view of making full use of sustainable resources endowed by nature, opening the avenue to designing and producing robust materials with great promising applications in high-performance energy-storage devices.
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