Drop solution calorimetric studies of interface enthalpy of cubic silver (I) oxide (ag2o) nanocrystals

Khansaa Al-Essa, A. V. Radha, Alexandra Navrotsky

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The nano-scale, cubic silver(I) oxide (Ag2O.nH2O) with different particles sizes and surface areas were synthesized by a wet chemical technique. The prepared crystallite size ranges were from (33.3±0.3 to 39.4±0.4 nm). Interface areas were estimated by comparing the surface areas measured by N2 adsorption to the crystallite sizes refined from X-ray diffraction data. The interface enthalpy of Ag2O.nH2O nanocrystal was measured using isothermal acid solution calorimetry in 25%HNO3 at 26°C. The interface enthalpy was verified by utilizing thermodynamic cycle. The enthalpies of drop solution (ΔHds) for Ag2O.nH2O are exothermic and range from (-62.228±0.197) to (-64.025±0.434 kJ/mol), while its interface enthalpy is (0.842±0.508 J/m2 ). This work provides the first calorimetric measurement of the interface enthalpy of nanocrystalline silver(I) oxide (Ag2O.nH2O).

Original languageEnglish (US)
Title of host publicationAdvanced Materials Science and Technologies - Selected peer-reviewed papers from the 4th ICMSN 2020, 5th ICAFM 2020 and the 3rd ICACM 2020
EditorsYuyuan Zhao
PublisherTrans Tech Publications Ltd
Pages73-80
Number of pages8
ISBN (Print)9783035737493
DOIs
StatePublished - 2021
Event4th International Conference on Materials Sciences and Nanomaterials, ICMSN 2020, 5th International Conference on Advanced Functional Materials, ICAFM 2020 and 3rd International Conference on Advanced Composite Materials, ICACM 2020 - Tokyo, Japan
Duration: Aug 26 2020Aug 28 2020

Publication series

NameKey Engineering Materials
Volume878 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference4th International Conference on Materials Sciences and Nanomaterials, ICMSN 2020, 5th International Conference on Advanced Functional Materials, ICAFM 2020 and 3rd International Conference on Advanced Composite Materials, ICACM 2020
CountryJapan
CityTokyo
Period8/26/208/28/20

Keywords

  • Cubic Silver(I) oxide nanocrystal
  • Interface enthalpy
  • Isothermal acid solution calorimetry

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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