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Nano Research & Applications
ISSN 2471-9838
E u r o S c i C o n C o n f e r e n c e o n
Nanotechnology &
Smart Materials
O c t o b e r 0 4 - 0 6 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Nanotechnology & Smart Materials 2018
Calorimetric measurement of interface enthalpy of
nanocrystalline silver (I) oxide (Ag2O)
Khansaa Al-Essa
1, 2
, A V Radha
1
and Alexandra Navrotsky
1
1
Peter A Rock Thermochemistry Laboratory and NEAT ORU (Nanomaterials in the Environment,
Agriculture, and Technology Organized Research Unit), University of California at Davis, USA
2
Jerash University, Jordan
T
he interface enthalpy of nanocrystalline silver (I) oxide (Ag
2 O.nH 2O) was measured. Ag
2 O.nH 2O nanocrystalline samples of
varying surface areas and degrees of agglomeration were synthesized by wet chemical technique. Interface areas were
estimated by comparing the surface areas measured by N
2
adsorption to the crystallite sizes refined from X-ray diffraction data.
The interface enthalpy was verified by utilizing thermodynamic cycle, using enthalpy of solution measurements in 25% HNO3
at room temperature solution calorimetry. The interface enthalpy of the nanocrystalline Ag
2 O.nH 2O is (0.842±0.508 J/m2). This
work provides the first calorimetric measurement of the interface enthalpy of nanocrystalline silver (I) oxide (Ag
2 O.nH 2O).
Khansaa.essa@gmail.com k.essa@jpu.edu.joNano Res Appl Volume:4
DOI: 10.21767/2471-9838-C6-025