Yeast‐Based Microporous Carbon Materials for Carbon Dioxide Capture

• DOI: 10.1002/cssc.201100735
• Publication Date: 2012-06-13T11:59:41Z
• Authors: Wenzhong Shen; Yue He; Shouchun Zhang; Junfen Li; Weibin Fan
• Keywords: Potassium hydroxide; Carbon fibers; Specific surface area

Abstract A hierarchical microporous carbon material with a Brunauer–Emmett–Teller surface area of 1348 m 2 g −1 and pore volume 0.67 cm 3 was prepared from yeast through chemical activation potassium hydroxide. This type contains large numbers nitrogen‐containing groups (nitrogen content >5.3 wt %), and, consequently, basic sites. As result, this shows faster adsorption rate higher capacity CO than the obtained by directly carbonizing under same conditions. The difference is more pronounced in presence N or H O, showing that discarded hydroxide could afford high‐performance materials for capture .