Hydrogen storage on ordered microporous carbon containing dispersed metal nanoparticles

Yunxia Yang, Jacob Schalch, Yun Liu, Jae Hyuk Her, Jason Simons, Craig M. Brown, Paul A. Webley, Alan L. Chaffee

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

CRC for Greenhouse Gas Technologies and Centre for Green Chemistry, School of Chemistry, Monash University, Victoria, 3800, Australia A series of microporous carbon adsorbents were synthesised with a view to enhancing their hydrogen adsorption capacity by the incorporation of uniform well dispersed metal nano-particles. The hydrogen storage properties were measured at liquid nitrogen and other temperatures. Structural features of the carbons were investigated by various methods including X-ray diffraction, high resolution transmission electron microscopy, prompt gamma neutron activation analysis and inelastic neturon scattering (INS). Hydrogen adsorption capacities (up to 3.5wt%) and isosteric heats of adsorption (up to 10.5kJ/mol) were not as high as desired; however some novel and unexpected adsorption properties were observed. An optimum metal loading of about 1wt% was observed - with both lower and higher loadings exhibiting reduced hydrogen adsorption capacities and reduced isosteric heats of adsorption. INS, which probes the hydrogen rotational transitions, shows peaks that develop with atypical simplicity as a function of hydrogen loading, suggesting that the sites on which hydrogen can adsorb are of a very uniform nature.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
Publication statusPublished - 1 Dec 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States of America
Duration: 17 Aug 200821 Aug 2008

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Conference

Conference236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States of America
CityPhiladelpia, PA
Period17/08/0821/08/08

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