Citation: ZHANG Jing-Xian, YI Guan-Gui, LIU Ying-Liang, WU Yong-Jian, SUN Li-Xian. KOH-Activated Carbon Xerogels for Hydrogen Storage[J]. Chinese Journal of Inorganic Chemistry, ;2012, 28(12): 2565-2572. shu

KOH-Activated Carbon Xerogels for Hydrogen Storage

1.
1. Department of Chemistry and Institute of Nanochemistry, Jinan University, Guangzhou 510632, China;

Corresponding author: LIU Ying-Liang,
Received Date: 28 November 2011
Available Online: 2 June 2012
Fund Project: 国家-广东联合基金(No.U0734005) (No.U0734005)中央高校基本科研业务费专项资金(No.21610102) (No.21610102)国家自然科学基金(No.21031001) (No.21031001)广东省高等学校科技创新重点项目(No.cxzd1014)资助项目. (No.cxzd1014)

Organic xerogel was rapidly prepared via a lysine-catalyzed gelation process with resorcinol and formaldehyde as the precursors. After carbonization and a subsequent activation with KOH, carbon xerogels with high microporosity and high-specific-surface area could be obtained. The hydrogen storage properties of the porous carbon xerogels were studied. The relationship of the maximum hydrogen storage capacity with specific surfacearea, micropore volume and pore size distribution was investigated. The results show that moderately KOH-activated carbon xerogel (ACX-5) with high surface area of 2 204 m²·g^-1 and large total-pore volume of 1.09 cm³·g^-1 exhibits the largest hydrogen storage capacity of 4.3wt% at 77 K and under 1.1 MPa hydrogen pressure.
- carbon xerogels;KOH activation;hydrogen storage
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