Materials with hierarchical porosity for energy storage and conversion

Andreas Stein, Jane Davidson, Nicholas Petkovich, Yuqiang Qian, Stephen Rudisill, Luke Venstrom, Anh Vu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two redox systems, i.e., lithium-ion batteries and sunlight-to-fuel conversion, in which templated porous materials provide a platform for either electrical energy storage or light-to-chemical energy conversion, were studied. The role of pore architecture in carbon-based electrodes was discussed. In the second system, the role of porosity in ceria-based materials of interest for solar thermal splitting of water or CO 2 to produce hydrogen or CO fuels, respectively, was examined. In the reactions targeting the production of chemical fuels (H 2 and CO) from water and CO 2, the heterogeneous conversion processes benefited from the added surface area in samples that facilitate the oxidation cycle. The addition of porosity improved peak fuel production rates and reactivities. However, a mesoporous ceria sample displaying an even higher surface area quickly lost activity as the material sintered during the reaction. The interplay between composition and morphology of these materials, thermal stability, and conversion efficiencies were discussed. This is an abstract of a paper presented at the 2011 AIChE Annual Meeting (Minneapolis, MN 10/16-21/2011).

Original languageEnglish (US)
Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
PublisherAIChE
Pages70-71
Number of pages2
ISBN (Print)9781618397287
StatePublished - 2011
EventEnergy and Transport Processes - Core Programming Topic at the 2011 AIChE Annual Meeting - Minneapolis, United States
Duration: Oct 16 2011Oct 21 2011

Publication series

NameEnergy and Transport Processes - Core Programming Topic at the 2011 AIChE Annual Meeting

Other

OtherEnergy and Transport Processes - Core Programming Topic at the 2011 AIChE Annual Meeting
CountryUnited States
CityMinneapolis
Period10/16/1110/21/11

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