Chemically activated fungi-based porous carbons for hydrogen storage

Wang J, Senkovska I, Kaskel S, Liu Q (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Carbon Elsevier

Book Volume: 75

Pages Range: 372-380

DOI: 10.1016/j.carbon.2014.04.016

Abstract

A set of porous carbons has been prepared by chemical activation of various fungi-based chars with KOH. The resulting carbon materials have high surface areas (1600-2500 m2/g) and pore volumes (0.80-1.56 cm3/g), regardless of the char precursors. The porosities mainly derived from micropores in activated carbons strongly depend on the activation parameters (temperature and KOH amount). All activated carbons have uniform micropores with pore size of 0.8-0.9 nm, but some have a second set of micropores (1.3-1.4 nm pore size), further broadened to 1.9-2.1 nm as a result of increasing either the activation temperature to 750 °C or KOH/char mass ratio to 5/1. These fungi-based porous carbons achieve an excellent H2 uptake of up to 2.4 wt% at 1 bar and -196 °C, being in agreement with results from other porous carbonaceous adsorbents reported in the literature. At high pressure (ca. 35 bar), the saturated H2 uptake reaches 4.2-4.7 wt% at -196 °C for these fungi-based porous carbons. The results imply a great potential of these fungi-based porous carbons as H2 on-board storage media. © 2014 Elsevier Ltd. All rights reserved.

Involved external institutions

Shanghai Institute of Ceramics of the Chinese Academy of Sciences (SICCAS) CN China (CN) Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Wang, J., Senkovska, I., Kaskel, S., & Liu, Q. (2014). Chemically activated fungi-based porous carbons for hydrogen storage. Carbon, 75, 372-380. https://doi.org/10.1016/j.carbon.2014.04.016

MLA:

Wang, Jiacheng, et al. "Chemically activated fungi-based porous carbons for hydrogen storage." Carbon 75 (2014): 372-380.

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