Publication Date:
2013-10-05
Description:
Graphene is a distinct two-dimensional material that offers a wide range of opportunities for membrane applications because of ultimate thinness, flexibility, chemical stability, and mechanical strength. We demonstrate that few- and several-layered graphene and graphene oxide (GO) sheets can be engineered to exhibit the desired gas separation characteristics. Selective gas diffusion can be achieved by controlling gas flow channels and pores via different stacking methods. For layered (3- to 10-nanometer) GO membranes, tunable gas transport behavior was strongly dependent on the degree of interlocking within the GO stacking structure. High carbon dioxide/nitrogen selectivity was achieved by well-interlocked GO membranes in high relative humidity, which is most suitable for postcombustion carbon dioxide capture processes, including a humidified feed stream.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Hyo Won -- Yoon, Hee Wook -- Yoon, Seon-Mi -- Yoo, Byung Min -- Ahn, Byung Kook -- Cho, Young Hoon -- Shin, Hye Jin -- Yang, Hoichang -- Paik, Ungyu -- Kwon, Soongeun -- Choi, Jae-Young -- Park, Ho Bum -- New York, N.Y. -- Science. 2013 Oct 4;342(6154):91-5. doi: 10.1126/science.1236098.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24092738" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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