Activated carbons from oil palm shell for hydrogen storage

The Wood and Biofiber International Conference 2017

轻工业生物科学

Zhao, W.^1 ; Luo, L.^1 ; Chen, T.^1 ; Li, Z.^1 ; Zhang, Z.^1 ; Fan, M.^1,2

College of Material Engineering, Fujian Agriculture and Forestry University, NO 15 Shangxiadian Road, Fuzhou

350002, China^1

College of Engineering, Design and Physical Sciences, Brunel University, Uxbridge

UB8 3PH, United Kingdom^2

关键词: Agricultural by-products;    Commercial materials;    Hydrogen adsorption;    N2 adsorption;    Storage capacity;    Storage performance;    Surface area;    Weight ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/368/1/012031/pdf
DOI  :  10.1088/1757-899X/368/1/012031

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

Activated carbons (ACs) with controlled microporosity have been developed from oil palm shell and their H2storage performances been have tested at 77 K. Such adsorbents are the natural agricultural by-products of chemically activated with KOH. N2adsorption-desorption at 77 K was used to investigate the pore structure of the ACs produced with different weight ratio of KOH/oil palm shell charcoal. The results showed that the developed oil palm shell ACs achieved surface areas (SBET) as high as 3508 m2/g and micropores volumes (VDR) as high as 1.10 cm3/g. Outstanding storage capacities of hydrogen, as high as 6.8 wt.% have been obtained at 4 MPa and 2.86 wt.% have been obtained at 1 bar for some of these adsorbents at 77 K. These values of hydrogen adsorption are among the best that ever published so far, which well above those of some reference commercial materials, e.g. Maxsorb-3, and also the ACs from the open literature.