期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 12, 页码 4220-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja9010354
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资金
- MEXT Japan
- KRF [KRF-2003-13-C00051]
- WCU
- Ministry of Education, Science & Technology (MoST), Republic of Korea [R31-2008-000-10035-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [과06B1510] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Stable, homogeneous ultrathin films of uniformly dimensioned dual-pore carbon capsules with mesoporous walls and macroscopic empty cores were fabricated using layer-by-layer methods based on electrostatic interaction between a polyetectrolyte and a surfactant coating of the carbon capsules. The resulting dual-porous carbon capsule films were investigated as a sensor substrate for vapors of different organic solvents. The carbon capsule films have much higher adsorption capacities than conventional electrolyte films and even than noncapsular mesoporous carbon films. The dual-pore carbon capsules have greater affinities for aromatic volatiles over their aliphatic counterparts, probably due to stronger pi-pi interactions. Additionally, the adsorption selectivity can be designed. Impregnation of additional recognition components into the
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