Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation
Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques,...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2013-10, Vol.342 (6154), p.95-98 |
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| container_issue | 6154 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Li, Hang Song, Zhuonan Zhang, Xiaojie Huang, Yi Li, Shiguang Mao, Yating Ploehn, Harry J. Bao, Yu Yu, Miao |
| description | Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high as 3400 and 900 for H₂/CO₂ and H₂/N₂ mixtures, respectively, through selective structural defects on GO. |
| doi_str_mv | 10.1126/science.1236686 |
| format | Article |
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Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. 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Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high as 3400 and 900 for H₂/CO₂ and H₂/N₂ mixtures, respectively, through selective structural defects on GO.</description><subject>Adsorption</subject><subject>Applied sciences</subject><subject>Carbon dioxide</subject><subject>Channels</subject><subject>Chemical engineering</subject><subject>Diffusion</subject><subject>Exact sciences and technology</subject><subject>Filtration</subject><subject>Gases</subject><subject>Graphene</subject><subject>Hydrogen</subject><subject>Materials science</subject><subject>Membrane separation (reverse osmosis, dialysis...)</subject><subject>Membranes</subject><subject>Micropores</subject><subject>Molecules</subject><subject>Oxides</subject><subject>P branes</subject><subject>Porosity</subject><subject>Solvents</subject><subject>String theory</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqF0UFLHTEQB_BQWuqr9txTy0Ip9NDVJJPNZo4iVguKB5Uel2x2VvPYt3lNdqV-eyNva6GXXpKQ_PJnkmHsg-CHQkh9lJyn0dGhkKC10a_YSnCsSpQcXrMV56BLw-tqj71Lac15PkN4y_ak4ihrwBX7eTtM0U73fvxWXIaB3DzYWF57evDjXXEW7faeRiqufvuOikvatNGOlIo-xOKaMp_8AxXnj10MdzTmra3NaT6MB-xNb4dE75d5n91-P705OS8vrs5-nBxflK4SMJW6lq3KdYFRFtGpvO4AOtnxHg1ZIbTVvFVt5aThxiCSA2NMVYPsnEIL--zrLncbw6-Z0tRsfHI0DLnMMKdGVBVqBIHwf6oUAIo8ZPr5H7oOcxzzQ7IClM-JdVZHO-ViSClS32yj39j42AjePLenWdrTLO3JNz4tuXO7oe7F_-lHBl8WYJOzQ59_2_n019UGK21Udh93bp2mEF_OldQCa4nwBN7NoNU</recordid><startdate>20131004</startdate><enddate>20131004</enddate><creator>Li, Hang</creator><creator>Song, Zhuonan</creator><creator>Zhang, Xiaojie</creator><creator>Huang, Yi</creator><creator>Li, Shiguang</creator><creator>Mao, Yating</creator><creator>Ploehn, Harry J.</creator><creator>Bao, Yu</creator><creator>Yu, Miao</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20131004</creationdate><title>Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation</title><author>Li, Hang ; 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Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high as 3400 and 900 for H₂/CO₂ and H₂/N₂ mixtures, respectively, through selective structural defects on GO.</abstract><cop>Washington, DC</cop><pub>American Association for the Advancement of Science</pub><pmid>24092739</pmid><doi>10.1126/science.1236686</doi><tpages>4</tpages></addata></record> |
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| subjects | Adsorption Applied sciences Carbon dioxide Channels Chemical engineering Diffusion Exact sciences and technology Filtration Gases Graphene Hydrogen Materials science Membrane separation (reverse osmosis, dialysis...) Membranes Micropores Molecules Oxides P branes Porosity Solvents String theory |
| title | Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation |
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