Intercalation of magnesium-urea complex into swelling clay

Man Park; Chan Yong Kim; Dong Hoon Lee; Choong Lyeal Choi; Jyung Choi; Sung Reol Lee; Jin Ho Choy

doi:10.1016/j.jpcs.2003.09.011

Intercalation of magnesium-urea complex into swelling clay

Man Park, Chan Yong Kim, Dong Hoon Lee, Choong Lyeal Choi, Jyung Choi, Sung Reol Lee, Jin Ho Choy

School of Applied Bioscience

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

N fertilization is considered as a main source of N₂O and NO emission from agricultural soils. Especially, it is a great challenge to enhance urea efficiency without any deleterious effects on the environment because of massive application of urea. In this study, we attempted to stabilize urea in the interlayer space of montmorillonite (MMT) in order to reduce urea loss from soils. Urea was successfully intercalated in the form of urea-magnesium complexes. The stabilization of urea-magnesium complexes within the interlayer space was confirmed by a significant expansion of the interlayer space and the presence of urea-magnesium complexes. Urea degradation in soils was significantly delayed by application of the urea-magnesium complex intercalated into MMT. It is highly feasible that stabilization of urea within nanosized interlayer space would lead to considerable improvement of nitrogen efficiency in soils.

Original language	English
Pages (from-to)	409-412
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	65
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jpcs.2003.09.011
State	Published - Feb 2004

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title = "Intercalation of magnesium-urea complex into swelling clay",

abstract = "N fertilization is considered as a main source of N2O and NO emission from agricultural soils. Especially, it is a great challenge to enhance urea efficiency without any deleterious effects on the environment because of massive application of urea. In this study, we attempted to stabilize urea in the interlayer space of montmorillonite (MMT) in order to reduce urea loss from soils. Urea was successfully intercalated in the form of urea-magnesium complexes. The stabilization of urea-magnesium complexes within the interlayer space was confirmed by a significant expansion of the interlayer space and the presence of urea-magnesium complexes. Urea degradation in soils was significantly delayed by application of the urea-magnesium complex intercalated into MMT. It is highly feasible that stabilization of urea within nanosized interlayer space would lead to considerable improvement of nitrogen efficiency in soils.",

author = "Man Park and Kim, {Chan Yong} and Lee, {Dong Hoon} and Choi, {Choong Lyeal} and Jyung Choi and Lee, {Sung Reol} and Choy, {Jin Ho}",

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T1 - Intercalation of magnesium-urea complex into swelling clay

AU - Park, Man

AU - Kim, Chan Yong

AU - Lee, Dong Hoon

AU - Choi, Choong Lyeal

AU - Choi, Jyung

AU - Lee, Sung Reol

AU - Choy, Jin Ho

PY - 2004/2

Y1 - 2004/2

N2 - N fertilization is considered as a main source of N2O and NO emission from agricultural soils. Especially, it is a great challenge to enhance urea efficiency without any deleterious effects on the environment because of massive application of urea. In this study, we attempted to stabilize urea in the interlayer space of montmorillonite (MMT) in order to reduce urea loss from soils. Urea was successfully intercalated in the form of urea-magnesium complexes. The stabilization of urea-magnesium complexes within the interlayer space was confirmed by a significant expansion of the interlayer space and the presence of urea-magnesium complexes. Urea degradation in soils was significantly delayed by application of the urea-magnesium complex intercalated into MMT. It is highly feasible that stabilization of urea within nanosized interlayer space would lead to considerable improvement of nitrogen efficiency in soils.

AB - N fertilization is considered as a main source of N2O and NO emission from agricultural soils. Especially, it is a great challenge to enhance urea efficiency without any deleterious effects on the environment because of massive application of urea. In this study, we attempted to stabilize urea in the interlayer space of montmorillonite (MMT) in order to reduce urea loss from soils. Urea was successfully intercalated in the form of urea-magnesium complexes. The stabilization of urea-magnesium complexes within the interlayer space was confirmed by a significant expansion of the interlayer space and the presence of urea-magnesium complexes. Urea degradation in soils was significantly delayed by application of the urea-magnesium complex intercalated into MMT. It is highly feasible that stabilization of urea within nanosized interlayer space would lead to considerable improvement of nitrogen efficiency in soils.

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Intercalation of magnesium-urea complex into swelling clay

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