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학술지 Production of Large-Scale, Freestanding Vanadium Pentoxide Nanobelt Porous Structures
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저자
윤용주, 김병훈, Won G. Hong, Chang Hee Kim, 김약연, 정은주, 장원익, 유한영
발행일
201202
출처
Nanoscale, v.4 no.5, pp.1636-1640
ISSN
2040-3364
출판사
Royal Society of Chemistry (RSC)
DOI
https://dx.doi.org/10.1039/c2nr11569g
협약과제
11MC1500, 차세대 IT기반 기술사업화 기반조성, 장원익
초록
Large-scale, freestanding, porous structures of vanadium pentoxide nanobelts (VPNs) were successfully prepared using the template-free freeze-drying method. The porous and multi-layered VPN macrostructures are composed of randomly oriented long nanobelts (over 100 mm) and their side length can be controlled up to a few tens of centimetres. Also, the bulk density and surface area of these macrostructures are 3-5 mg cm3 and 40-80 m2 g1, respectively, which are similar to those of the excellent adsorbents. In addition, the removal efficiency measurements of ammonia molecules revealed that the VPN porous structures can adsorb the ammonia molecules with the combinations of van der Waals forces and strong chemical bonding by functional groups on the VPN surface.
KSP 제안 키워드
Bulk density, Chemical bonding, Freeze-drying method, Functional group, Porous structure, Randomly oriented, Surface Area, Template-free, efficiency measurements, large-scale, removal efficiency