Hydrogen storage capacity of highly porous carbons synthesized from biomass-derived aerogels

Yong Ki Choi, Soo Jin Park

Research output: Contribution to conferencePaperpeer-review

Abstract

In this work, highly porous carbons were prepared by chemical activation of carbonized biomass-derived aerogels. The biomass-derived aerogels were synthesized from watermelon flesh using a hydrothermal reaction. After carbonization of biomass-derived aerogels, chemical activation was performed by potassium hydroxide to enhance the specific surface area and microporosity. The micro-structural properties and morphologies were measured by X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. The specific surface area and microporosity were investigated by N2/77 K adsorption-desorption isotherms using the Brunauer-Emmett-Teller (BET) method and Horvath-Kawazoe (HK) equation respectively. The hydrogen storage capacity was influenced by activation temperature and K-900-BAC has the best hydrogen storage capacity 2.7 wt.% at 77 K and 1 bar.

Original languageEnglish
Pages938-942
Number of pages5
StatePublished - 2014
Event20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju, Korea, Republic of
Duration: 15 Jun 201420 Jun 2014

Conference

Conference20th World Hydrogen Energy Conference, WHEC 2014
Country/TerritoryKorea, Republic of
CityGwangju
Period15/06/1420/06/14

Bibliographical note

Publisher Copyright:
Copyright © (2014) by the Committee of WHEC2014 All rights reserved.

Keywords

  • Hydrogen storage
  • Porous carbons
  • Watermelon flesh

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