Energetics of ZnO nanoneedles: Surface enthalpy, stability, and growth

Peng Zhang; Thomas Lee; Fen Xu; Alexandra Navrotsky

doi:10.1557/jmr.2008.0216

Energetics of ZnO nanoneedles: Surface enthalpy, stability, and growth

Peng Zhang, Thomas Lee, Fen Xu, Alexandra Navrotsky

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

15 Scopus citations

Abstract

The surface enthalpy of ZnO nanoneedles has been measured by oxide melt solution calorimetry of samples with different surface areas. Water adsorption calorimetry was carried out to characterize the stabilization effect of surface hydration. The surface enthalpies of hydrated and anhydrous surfaces (8.21 ± 0.67 and 9.81 ± 0.69 J/m², respectively) are larger than those of nanorods. The less stable surface of nanoneedles provides a driving force for the transformation of nanoneedles into nanorods during The formation of bushlike assemblies of nanoneedles is also discussed. aging.

Original language	English (US)
Pages (from-to)	1652-1657
Number of pages	6
Journal	Journal of Materials Research
Volume	23
Issue number	6
DOIs	https://doi.org/10.1557/jmr.2008.0216
State	Published - Jun 2008
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/jmr.2008.0216

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title = "Energetics of ZnO nanoneedles: Surface enthalpy, stability, and growth",

abstract = "The surface enthalpy of ZnO nanoneedles has been measured by oxide melt solution calorimetry of samples with different surface areas. Water adsorption calorimetry was carried out to characterize the stabilization effect of surface hydration. The surface enthalpies of hydrated and anhydrous surfaces (8.21 ± 0.67 and 9.81 ± 0.69 J/m2, respectively) are larger than those of nanorods. The less stable surface of nanoneedles provides a driving force for the transformation of nanoneedles into nanorods during The formation of bushlike assemblies of nanoneedles is also discussed. aging.",

author = "Peng Zhang and Thomas Lee and Fen Xu and Alexandra Navrotsky",

year = "2008",

month = jun,

doi = "10.1557/jmr.2008.0216",

language = "English (US)",

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pages = "1652--1657",

journal = "Journal of Materials Research",

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AU - Zhang, Peng

AU - Lee, Thomas

AU - Xu, Fen

AU - Navrotsky, Alexandra

PY - 2008/6

Y1 - 2008/6

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AB - The surface enthalpy of ZnO nanoneedles has been measured by oxide melt solution calorimetry of samples with different surface areas. Water adsorption calorimetry was carried out to characterize the stabilization effect of surface hydration. The surface enthalpies of hydrated and anhydrous surfaces (8.21 ± 0.67 and 9.81 ± 0.69 J/m2, respectively) are larger than those of nanorods. The less stable surface of nanoneedles provides a driving force for the transformation of nanoneedles into nanorods during The formation of bushlike assemblies of nanoneedles is also discussed. aging.

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Energetics of ZnO nanoneedles: Surface enthalpy, stability, and growth

Abstract

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