<P><B>Abstract</B></P> <P>An effective coating strategy is employed to functionalize and protect the surfaces of aluminum (Al) nanoparticle (NPs) from oxidation and aggregation using silanization of the oxide surface wit...
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https://www.riss.kr/link?id=A107438668
2018
-
SCI,SCIE,SCOPUS
학술저널
96-104(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>An effective coating strategy is employed to functionalize and protect the surfaces of aluminum (Al) nanoparticle (NPs) from oxidation and aggregation using silanization of the oxide surface wit...
<P><B>Abstract</B></P> <P>An effective coating strategy is employed to functionalize and protect the surfaces of aluminum (Al) nanoparticle (NPs) from oxidation and aggregation using silanization of the oxide surface with (3-aminopropyl) triethoxysilane (Al@APTES), followed by an amine/carboxylic exchange using glutaric anhydride (Al@APTES@GA). The stability of the two types of functionalized Al NPs in aqueous solution is studied using dynamic light scattering and x-ray diffraction phase/composition identification. It is found that Al@APTES NPs transform into bayerite (β-Al(OH)<SUB>3</SUB>) after storage for a short period of time, while Al@APTES@GA NPs exhibit long-term stability. Hydration of Al results in micro-sized aggregates and a large proportion of dead weight, which reduces the particles’ energetic properties. Al–Fe<SUB>3</SUB>O<SUB>4</SUB> magnetic–energetic (Magnerg) composites are fabricated via the electrostatic interaction of oppositely charged NPs in an aqueous solution. The high dispersity and stability of Al@APTES@GA NPs assure their intimate arrangement with oxidizing Fe<SUB>3</SUB>O<SUB>4</SUB> NPs that facilitates mass transport between reactants.</P>