Document Detail


Precursor Effects of Citric Acid and Citrates on ZnO Crystal Formation.
MedLine Citation:
PMID:  19209869     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have studied the precursor effects of citric acid and various citratesincluding triethyl citrate, tripotassium citrate, trisodium citrate and triammonium citrateon the formation of ZnO crystals in alkaline solution. These citrate-related chemicals could be divided into three groups (group A, triethyl citrate; group B, tripotassium citrate and trisodium citrate; and group C, citric acid and triammonium citrate) based on their activity for modifying the ZnO growth direction and solution pH dependency on their concentration. We could obtain ZnO structures with various distinct morphologies by simply changing the concentration of citric acid or citrate additive dissolved in the alkaline reaction solution. On the basis of the results, we propose the growth mechanisms underlying the formation of the various ZnO structures in the absence and presence of citric acid or citrate additives.
Authors:
Seungho Cho; Ji-Wook Jang; Seung-Ho Jung; Bo Ram Lee; Eugene Oh; Kun-Hong Lee
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2009-2-11
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  -     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-2-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemical Engineering, Pohang University of Science and Technology, and National Center for Nanomaterials Technology, San 31, Hyoja-Dong, Nam-Gu, Pohang, Gyungbuk, Korea 790-784.
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