Suppression of silver ion reduction by Al(NO3)(3) complex and its application to highly stabilized olefin transport membranes
- Title
- Suppression of silver ion reduction by Al(NO3)(3) complex and its application to highly stabilized olefin transport membranes
- Author
- 강용수
- Keywords
- Silver ion; Reduction; Al(NO3)3; Facilitated transport
- Issue Date
- 2013-10
- Publisher
- ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
- Citation
- Journal of Membrane Science, 2013, 445, P.156-159
- Abstract
- It is well known that the reduction of AgBF4 to silver nanoparticles inevitably occurs over time even under dark conditions. In particular, the reduction rate of AgBF4 in a polymer/silver salt complex is much faster than for any other silver salt. However, when Al(NO3)3 was incorporated into a POZ/AgBF4 complex, the reduction of silver ion was suppressed for more than 14 days. Stable silver ions were confirmed by the separation performance of propylene/propane mixtures over time and by the color change of the POZ/AgBF4/Al(NO3)3 complex. FT-IR and FT-Raman spectroscopy showed that ionic aggregation between the silver ion of AgBF4 and NO3- of Al(NO3)3 occurred, which was much stronger in intensity than interactions in the POZ/Al(NO3)3 and POZ/AgNO3 complexes. This strong aggregation behavior was attributable to a favorable interaction between F? of AgBF4 and Al3+ of Al(NO3)3, resulting in a weakened interaction between Al3+ and its counteranions, which was confirmed by XPS.
- URI
- https://ac.els-cdn.com/S0376738813005036/1-s2.0-S0376738813005036-main.pdf?_tid=d244c101-74bf-46d1-975c-e5196ef5c2d4&acdnat=1520507913_065900bb87e9a6b96d99bc506cdcb48dhttp://hdl.handle.net/20.500.11754/44445
- ISSN
- 0376-7388
- DOI
- 10.1016/j.memsci.2013.06.010
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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