Here we study how graphene oxide affects silica aerogels and their physical and mechanical properties by examining volume shrinkage, pore volume, surface area and compressive strength of these composite aerogels. Composite aerogels were made through adding different amount of graphene oxide (GO) to sodium silicate precursor by using ambient pressure drying method. Additionally, the chemical composition of the composite aerogels was determined using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. A rougher structure was observed when the GO loading increased and the characteristic peak of GO in XRD disappeared due to the random distribution of GO within the silica matrix. FTIR spectrum of composite aerogels shows that the relative intensity of silanol groups on the silica matrix have downward tendency with the addition of GO. The specific surface area had maxima with the addition of 0.01 wt% GO surface area to 578 m(2) /g. The mechanical strength of aerogels was increased, with the loading of GO from 0.0 wt% to 0.2 wt%, and the compressive modulus increased from 0.02 MPa to 0.22 MPa.
机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Anderson, Ann M.
Carroll, Mary K.
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Union Coll, Dept Chem, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Carroll, Mary K.
Green, Emily C.
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机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Union Coll, Dept Chem, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Green, Emily C.
Melville, Jason T.
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机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Melville, Jason T.
Bono, Michael S.
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机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
机构:
Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
Geim, A. K.
Novoselov, K. S.
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Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Anderson, Ann M.
Carroll, Mary K.
论文数: 0引用数: 0
h-index: 0
机构:
Union Coll, Dept Chem, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Carroll, Mary K.
Green, Emily C.
论文数: 0引用数: 0
h-index: 0
机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Union Coll, Dept Chem, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Green, Emily C.
Melville, Jason T.
论文数: 0引用数: 0
h-index: 0
机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
Melville, Jason T.
Bono, Michael S.
论文数: 0引用数: 0
h-index: 0
机构:
Union Coll, Dept Mech Engn, Schenectady, NY 12308 USAUnion Coll, Dept Mech Engn, Schenectady, NY 12308 USA
机构:
Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
Geim, A. K.
Novoselov, K. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England